LT1632CS8_技术文档

LT1632/LT1633

45MHz, 45V/µs, Dual/Quad

Rail-to-Rail Input and Output

Precision Op Amps

U

FEATURES

DESCRIPTION

The LT^®1632/LT1633 are dual/quad, rail-to-rail input and

outputopampswitha45MHzgain-bandwidthproductand

a 45V/µs slew rate.

■

Gain-Bandwidth Product: 45MHz

Slew Rate: 45V/µs

Low Supply Current per Amplifier: 4.3mA

Input Common Mode Range Includes Both Rails

Output Swings Rail-to-Rail

The LT1632/LT1633 have excellent DC precision over the

full range of operation. Input offset voltage is typically less

than 400µV and the minimum open-loop gain of 0.8

million into a 10k load virtually eliminates all gain error.

Common mode rejection is typically 83dB overthefullrail-

to-rail input range when on a single 5V supply for excellent

noninverting performance.

Input Offset Voltage, Rail-to-Rail: 1350µV Max

Input Offset Current: 440nA Max

Input Bias Current: 2.2µA Max

Open-Loop Gain: 800V/mV Min

Low Input Noise Voltage: 12nV/√Hz Typ

Low Distortion: –92dBc at 100kHz

Wide Supply Range: 2.7V to ±15V

Large Output Drive Current: 35mA Min

Dual in 8-Pin PDIP and SO Packages

The LT1632/LT1633 maintain their performance for sup-

pliesfrom2.7Vto36Vandarespecifiedat3V,5Vand±15V

supplies. The inputs can be driven beyond the supplies

without damage or phase reversal of the output. The

output delivers load currents in excess of 35mA.

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APPLICATIONS

The LT1632 is available in 8-pin PDIP and SO packages

withthestandarddualopamppinout.TheLT1633features

the standard quad op amp configuration and is available in

a 14-pin plastic SO package. These devices can be used as

plug-in replacements for many standard op amps to

improve input/output range and performance.

■

Active Filters

Rail-to-Rail Buffer Amplifiers

Driving A/D Converters

Low Voltage Signal Processing

Battery-Powered Systems

, LTC and LT are registered trademarks of Linear Technology Corporation.

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TYPICAL APPLICATION

Frequency Response

50

Single Supply, 40dB Gain, 550kHz Instrumentation Amplifier

40

DIFFERENTIAL INPUT

30

20

10

R5

432Ω

R4

20k

R2

2k

0

R1

COMMON MODE INPUT

–10

20k

–

3V

R3

2k

–20

–30

–40

–50

–

1/2 LT1632

+

–

V

1/2 LT1632

OUT

V

IN

+

V

IN

V

A

= 3V

= 100

S

V

1630/31 F02

–60

–70

100

1k

10k

100k

1M

10M

FREQUENCY (Hz)

1632/33 TA02

1

LT1632/LT1633

W W

U W

ABSOLUTE MAXIMUM RATINGS

(Note 1)

Total Supply Voltage (V⁺to V^–) ............................. 36V

Input Current ..................................................... ±10mA

Output Short-Circuit Duration (Note 2)........ Continuous

Operating Temperature Range ................ –40°C to 85°C

Specified Temperature Range (Note 4) ..... –40°C to 85°C

Junction Temperature.......................................... 150°C

Storage Temperature Range ................. –65°C to 150°C

Lead Temperature (Soldering, 10 sec).................. 300°C

U

W U

PACKAGE/ORDER INFORMATION

TOP VIEW

ORDER PART

TOP VIEW

NUMBER

OUTA

–IN A

+IN A

1

2

3

4

5

6

7

14

13

12

11

10

9

OUT D

–IN D

+IN D

+

OUT A

–IN A

+IN A

1

2

3

4

V

8

7

6

5

A

B

D

C

LT1632CN8

LT1632CS8

LT1633CS

OUT B

–IN B

+IN B

A

+

–

V

B

–

V

+IN B

–IN B

OUT B

+IN C

–IN C

OUT C

N8 PACKAGE

S8 PACKAGE

S8 PART MARKING

1632

8-LEAD PDIP 8-LEAD PLASTIC SO

8

T_JMAX= 150°C, θ_JA= 130°C/ W (N8)

_JMAX= 150°C, θ_JA= 190°C/ W (S8)

S PACKAGE

14-LEAD PLASTIC SO

T_JMAX= 150°C, θ_JA= 150°C/ W

T

Consult factory for Military and Industrial grade parts.

ELECTRICAL CHARACTERISTICS

T_A= 25°C, V_S= 5V, 0V; V_S= 3V, 0V; V_CM= V_OUT= half supply, unless otherwise noted.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

+

V

Input Offset Voltage

V

= V

400

1350

µV

OS

CM

–

+

∆V

Input Offset Shift

V

= V to V

350

500

1500

2300

µV

OS

CM

–

+

Input Offset Voltage Match (Channel-to-Channel) V = V , V (Note 5)

CM

+

I

Input Bias Current

V

= V

0

–2.2

1.15

–1.15

2.2

0

µA

B

CM

–

+

∆I

Input Bias Current Shift

V

= V to V

2.3

4.4

µA

B

CM

+

Input Bias Current Match (Channel-to-Channel)

V

= V (Note 5)

50

880

nA

CM

–

= V (Note 5)

+

I

Input Offset Current

V

= V

40

440

nA

OS

CM

–

+

∆I

Input Offset Current Shift

Input Noise Voltage

V

= V to V

80

400

12

880

nA

OS

CM

0.1Hz to 10Hz

f = 1kHz

nV

P-P

e

Input Noise Voltage Density

Input Noise Current Density

Input Capacitance

nV/√Hz

pA/√Hz

pF

n

i

f = 1kHz

1.6

5

n

C

A

IN

VOL

Large-Signal Voltage Gain

V = 5V, V = 300mV to 4.7V, R = 10k

V = 3V, V = 300mV to 2.7V, R = 10k

450

350

2000

1500

V/mV

S

O

L

S

O

L

–

+

CMRR

Common Mode Rejection Ratio

V = 5V, V = V to V

70

66

83

81

dB

S

CM

–

+

V = 3V, V = V to V

S

CM

2

LT1632/LT1633

ELECTRICAL CHARACTERISTICS

T_A= 25°C, V_S= 5V, 0V; V_S= 3V, 0V; V_CM= V_OUT= half supply, unless otherwise noted.

SYMBOL PARAMETER

CMRR Match (Channel-to-Channel) (Note 5)

CONDITIONS

V = 5V, V = V to V

MIN

TYP

MAX

UNITS

–

+

65

61

85

82

dB

S

CM

–

V = 3V, V = V to V

S

CM

PSRR

Power Supply Rejection Ratio

V = 2.7V to 12V, V = V = 0.5V

82

79

100

101

2.6

dB

V

S

CM

O

PSRR Match (Channel-to-Channel) (Note 5)

Minimum Supply Voltage (Note 9)

Output Voltage Swing Low (Note 6)

V = 2.7V to 12V, V = V = 0.5V

S

CM

O

V

CM

= V = 0.5V

2.7

O

V

No Load

15

32

600

30

60

1200

mV

OL

I

= 0.5mA

= 25mA, V = 5V

= 20mA, V = 3V

SINK

S

500

1000

S

Output Voltage Swing High (Note 6)

Short-Circuit Current

No Load

16

42

910

680

40

80

1800

1400

mV

OH

I

= 0.5mA

= 20mA, V = 5V

= 15mA, V = 3V

SOURCE

S

I

V = 5V

±20

±15

±40

±30

mA

SC

S

V = 3V

S

Supply Current per Amplifier

Gain-Bandwidth Product (Note 7)

Slew Rate (Note 8)

4.3

45

5.2

mA

S

GBW

SR

f = 100kHz

V = 5V, A = –1, R = Open, V = 4V

22

MHz

13

11

27

22

V/µs

S

V

L

O

V = 3V, A = –1, R = Open

S

V

L

t

Settling Time

V = 5V, A = 1, R = 1k,

400

ns

S

V

L

0.01%, V

= 2V

STEP

0°C < T_A< 70°C, V_S= 5V, 0V; V_S= 3V, 0V; V_CM= V_OUT= half supply, unless otherwise noted.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

+

V

Input Offset Voltage

V

= V – 0.1V

●

600

2000

µV

OS

CM

–

= V + 0.2V

V

TC

Input Offset Voltage Drift (Note 3)

Input Offset Voltage Shift

●

8

2.5

15

7

µV/°C

+

V

= V – 0.1V

CM

–

+

∆V

= V + 0.2V to V – 0.1V

●

400

700

2300

3750

µV

OS

CM

–

+

Input Offset Voltage Match (Channel-to-Channel) V = V + 0.2V, V – 0.1V (Note 5)

CM

+

I

Input Bias Current

V

CM

V

CM

= V – 0.1V

●

0

–2.6

1.3

–1.3

2.6

0

µA

B

–

= V + 0.2V

–

+

∆I

Input Bias Current Shift

V

CM

= V + 0.2V to V – 0.1V

●

2.6

5.2

µA

B

+

Input Bias Current Match (Channel-to-Channel)

V

CM

V

CM

= V – 0.1V (Note 5)

●

50

1040

nA

–

= V + 0.2V (Note 5)

+

I

Input Offset Current

V

CM

V

CM

= V – 0.1V

●

40

520

nA

OS

–

= V + 0.2V

–

+

∆I

Input Offset Current Shift

Large-Signal Voltage Gain

V

= V + 0.2V to V – 0.1V

●

80

1040

nA

OS

CM

A

VOL

V = 5V, V = 300mV to 4.7V, R = 10k

V = 3V, V = 300mV to 2.7V, R = 10k

●

300

200

1100

1000

V/mV

S

O

L

S

O

L

–

+

CMRR

PSRR

Common Mode Rejection Ratio

V = 5V, V = V + 0.2V to V – 0.1V

●

67

61

81

77

dB

S

CM

–

+

V = 3V, V = V + 0.2V to V – 0.1V

S

CM

–

+

CMRR Match (Channel-to-Channel) (Note 5)

V = 5V, V = V + 0.2V to V – 0.1V

●

62

57

78

73

dB

S

CM

–

+

V = 3V, V = V + 0.2V to V – 0.1V

S

CM

Power Supply Rejection Ratio

V = 3V to 12V, V = V = 0.5V

●

81

77

94

95

dB

S

CM

O

PSRR Match (Channel-to-Channel) (Note 5)

V = 3V to 12V, V = V = 0.5V

S CM O

3

LT1632/LT1633

ELECTRICAL CHARACTERISTICS

0°C < T_A< 70°C, V_S= 5V, 0V; V_S= 3V, 0V; V_CM= V_OUT= half supply, unless otherwise noted.

SYMBOL PARAMETER

Minimum Supply Voltage (Note 9)

CONDITIONS

= V = 0.5V

MIN

TYP

MAX

UNITS

V

●

2.6

2.7

V

CM

O

V

Output Voltage Swing Low (Note 6)

Output Voltage Swing High (Note 6)

Short-Circuit Current

No Load

●

18

37

700

560

40

80

1400

1200

mV

OL

I

= 0.5mA

= 25mA, V = 5V

= 20mA, V = 3V

SINK

S

V

OH

No Load

●

16

50

820

550

40

100

1600

1100

mV

I

= 0.5mA

= 15mA, V = 5V

= 10mA, V = 3V

SOURCE

S

I

V = 5V

●

±18

±13

±37

±26

mA

SC

S

V = 3V

S

Supply Current per Amplifier

Gain-Bandwidth Product (Note 7)

Slew Rate (Note 8)

●

4.9

41

6.0

mA

S

GBW

SR

f = 100kHz

V = 5V, A = –1, R = Open, V = 4V

20

MHz

●

13

10

26

21

V/µs

S

V

L

O

V = 3V, A = –1, R = Open

S

V

L

–40°C < T_A< 85°C, V_S= 5V, 0V; V_S= 3V, 0V; V_CM= V_OUT= half supply, unless otherwise noted. (Note 4)

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

+

V

OS

Input Offset Voltage

V

CM

V

CM

= V – 0.1V

●

700

2400

µV

–

= V + 0.2V

V

TC

Input Offset Voltage Drift (Note 3)

Input Offset Voltage Shift

●

8

2.5

15

7

µV/°C

OS

+

V

= V – 0.1V

CM

–

+

∆V

= V + 0.2V to V – 0.1V

●

475

750

2500

4000

µV

OS

CM

–

+

Input Offset Voltage Match (Channel-to-Channel) V = V + 0.2V, V (Note 5)

CM

+

I

Input Bias Current

V

CM

V

CM

= V – 0.1V

●

0

–3.0

1.46

–1.46

3.0

0

µA

B

–

= V + 0.2V

–

+

∆I

Input Bias Current Shift

V

CM

= V + 0.2V to V – 0.1V

●

2.92

6.0

µA

B

+

Input Bias Current Match (Channel-to-Channel)

V

CM

V

CM

= V – 0.1V (Note 5)

●

70

1160

nA

–

= V + 0.2V (Note 5)

+

I

Input Offset Current

V

CM

V

CM

= V – 0.1V

●

75

580

nA

OS

–

= V + 0.2V

–

+

∆I

Input Offset Current Shift

Large-Signal Voltage Gain

V

= V + 0.2V to V – 0.1V

●

50

1160

nA

OS

CM

A

VOL

V = 5V, V = 300mV to 4.7V, R = 10k

V = 3V, V = 300mV to 2.7V, R = 10k

●

250

200

1000

800

V/mV

S

O

L

S

O

L

–

+

CMRR

PSRR

Common Mode Rejection Ratio

V = 5V, V = V + 0.2V to V – 0.1V

●

65

60

80

75

dB

S

CM

–

+

V = 3V, V = V + 0.2V to V – 0.1V

S

CM

–

+

CMRR Match (Channel-to-Channel) (Note 5)

V = 5V, V = V + 0.2V to V – 0.1V

●

62

57

78

73

dB

S

CM

–

+

V = 3V, V = V + 0.2V to V – 0.1V

S

CM

Power Supply Rejection Ratio

V = 3V to 12V, V = V = 0.5V

●

79

75

95

dB

V

S

CM

O

PSRR Match (Channel-to-Channel) (Note 5)

Minimum Supply Voltage (Note 9)

Output Voltage Swing Low (Note 6)

V = 3V to 12V, V = V = 0.5V

S

CM

O

V

CM

= V = 0.5V

2.6

2.7

O

V

OL

No Load

●

19

39

730

580

40

80

1500

1200

mV

I

= 0.5mA

SINK

= 25mA, V = 5V

= 20mV, V = 3V

S

4

LT1632/LT1633

ELECTRICAL CHARACTERISTICS

–40°C < T_A< 85°C, V_S= 5V, 0V; V_S= 3V, 0V; V_CM= V_OUT= half supply, unless otherwise noted. (Note 4)

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

V

OH

Output Voltage Swing High (Note 6)

No Load

●

16

55

860

580

40

110

1700

1200

mV

I

= 0.5mA

= 15mA, V = 5V

= 10mA, V = 3V

SOURCE

S

I

Short-Circuit Current

V = 5V

V = 3V

S

●

±17

±12

±36

±24

mA

SC

S

Supply Current per Amplifier

Gain-Bandwidth Product (Note 7)

Slew Rate (Note 8)

●

4.95

40

6.2

mA

S

GBW

SR

f = 100kHz

V = 5V, A = –1, R = Open, V = 4V

20

MHz

●

11

9

22

18

V/µs

S

V

L

O

V = 3V, A = –1, R = Open

S

V

L

T_A= 25°C, V_S= ±15V, V_CM= 0V, V_OUT= 0V, unless otherwise noted.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

+

V

OS

Input Offset Voltage

V

CM

V

CM

= V

500

2200

µV

–

+

∆V

Input Offset Voltage Shift

V

= V to V

360

700

2200

3500

µV

OS

CM

–

+

Input Offset Voltage Match (Channel-to-Channel) V = V , V (Note 5)

CM

+

I

Input Bias Current

V

CM

V

CM

= V

0

–2.2

1.15

–1.15

2.2

0

µA

B

–

+

∆I

Input Bias Current Shift

V

CM

= V to V

2.3

4.4

µA

B

+

Input Bias Current Match (Channel-to-Channel)

V

CM

V

CM

= V (Note 5)

50

880

nA

–

= V (Note 5)

+

I

Input Offset Current

V

CM

V

CM

= V

50

440

nA

OS

–

+

∆I

Input Offset Current Shift

Input Noise Voltage

V

= V to V

36

400

12

880

nA

OS

CM

0.1Hz to 10Hz

f = 1kHz

nV

P-P

e

n

Input Noise Voltage Density

Input Noise Current Density

Input Capacitance

nV/√Hz

pA/√Hz

pF

i

n

f = 1kHz

1.6

3

C

IN

A

VOL

f = 100kHz

Large-Signal Voltage Gain

V = –14.5V to 14.5V, R = 10k

V = –10V to 10V, R = 2k

800

400

5000

2500

V/mV

O

L

O

L

Channel Separation

V = –10V to 10V, R = 2k

110

82

127

98

dB

O

L

–

+

CMRR

PSRR

Common Mode Rejection Ratio

CMRR Match (Channel-to-Channel) (Note 5)

Power Supply Rejection Ratio

V

CM

V

CM

= V to V

–

+

= V to V

80

101

96

V = ±5V to ±15V

S

82

PSRR Match (Channel-to-Channel) (Note 5)

Output Voltage Swing Low (Note 6)

V = ±5V to ±15V

S

80

101

V

No Load

16

150

600

35

300

1200

mV

OL

OH

I

= 5mA

= 25mA

SINK

V

Output Voltage Swing High (Note 6)

No Load

16

250

1200

40

500

2400

mV

I

= 5mA

= 25mA

SOURCE

5

LT1632/LT1633

ELECTRICAL CHARACTERISTICS

T_A= 25°C, V_S= ±15V, V_CM= 0V, V_OUT= 0V, unless otherwise noted.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

±70

4.6

45

MAX

UNITS

mA

I

Short-Circuit Current

±35

SC

S

Supply Current per Amplifier

Gain-Bandwidth Product (Note 7)

Slew Rate

6

mA

GBW

SR

f = 100kHz

22

MHz

V/µs

A = –1, R = Open, V = ±10V,

45

V

L

O

Measure at V = ±5V

O

t

Settling Time

0.01%, V

= 10V, A = 1, R = 1k

575

ns

S

STEP

V

L

0°C < T_A< 70°C, V_S= ±15V, V_CM= 0V, V_OUT= 0V, unless otherwise noted.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

+

V

OS

Input Offset Voltage

V

CM

V

CM

= V – 0.1V

●

800

2750

µV

–

= V + 0.2V

V

TC

Input Offset Voltage Drift (Note 3)

Input Offset Voltage Shift

●

10

5

17

11

µV/°C

OS

+

V

= V – 0.1V

CM

–

+

∆V

= V + 0.2V to V – 0.1V

●

500

800

2500

4000

µV

OS

CM

–

+

Input Offset Voltage Match (Channel-to-Channel) V = V + 0.2V, V – 0.1V (Note 5)

CM

+

I

Input Bias Current

V

CM

V

CM

= V – 0.1V

●

0

–2.6

1.3

–1.3

2.6

0

µA

B

–

= V + 0.2V

–

+

∆I

Input Bias Current Shift

V

CM

= V + 0.2V to V – 0.1V

●

2.6

5.2

µA

B

+

Input Bias Current Match (Channel-to-Channel)

V

CM

V

CM

= V – 0.1V (Note 5)

●

70

1040

nA

–

= V + 0.2V (Note 5)

+

I

Input Offset Current

V

CM

V

CM

= V – 0.1V

●

70

520

nA

OS

–

= V + 0.2V

–

+

∆I

Input Offset Current Shift

Large-Signal Voltage Gain

V

= V + 0.2V to V – 0.1V

●

140

1040

nA

OS

CM

A

VOL

V = –14.5V to 14.5V, R = 10k

V = –10V to 10V, R = 2k

●

600

300

4000

2000

V/mV

O

L

O

L

Channel Separation

V = –10V to 10V, R = 2k

●

110

81

125

96

dB

O

L

–

+

CMRR

PSRR

Common Mode Rejection Ratio

CMRR Match (Channel-to-Channel) (Note 5)

Power Supply Rejection Ratio

V

CM

V

CM

= V + 0.2V to V – 0.1V

–

+

= V + 0.2V to V – 0.1V

77

95

V = ±5V to ±15V

S

80

94

PSRR Match (Channel-to-Channel) (Note 5)

Output Voltage Swing Low (Note 6)

V = ±5V to ±15V

S

74

95

V

No Load

●

21

180

680

45

350

1400

mV

OL

OH

I

= 5mA

= 25mA

SINK

V

Output Voltage Swing High (Note 6)

No Load

●

15

300

1400

40

600

2800

mV

I

= 5mA

= 25mA

SOURCE

I

Short-Circuit Current

●

±28

±57

5.2

41

mA

SC

Supply Current per Amplifier

Gain-Bandwidth Product (Note 7)

Slew Rate

6.9

S

GBW

SR

f = 100kHz

A = –1, R = Open, V = ±10V,

20

21

MHz

V/µs

43

V

L

O

Measured at V = ±5V

O

6

LT1632/LT1633

ELECTRICAL CHARACTERISTICS

–40°C < T_A< 85°C, V_S= ±15V, V_CM= 0V, V_OUT= 0V, unless otherwise noted. (Note 4)

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

+

V

Input Offset Voltage

V

= V – 0.1V

●

1000

3000

µV

OS

CM

–

= V + 0.2V

V

TC

Input Offset Voltage Drift (Note 3)

●

10

5

17

11

µV/°C

+

V

= V – 0.1V

CM

–

+

∆V

Input Offset Voltage Shift

= V + 0.2V to V – 0.1V

●

500

850

2600

4000

µV

OS

CM

–

+

Input Offset Voltage Match (Channel-to-Channel) V = V + 0.2V, V – 0.1V (Note 5)

CM

+

I

Input Bias Current

V

CM

V

CM

= V – 0.1V

●

0

–2.8

1.4

–1.4

2.8

0

µA

B

–

= V + 0.2V

–

+

∆I

Input Bias Current Shift

V

CM

= V + 0.2V to V – 0.1V

●

2.8

5.6

µA

B

+

Input Bias Current Match (Channel-to-Channel)

V

CM

V

CM

= V – 0.1V (Note 5)

●

75

1120

nA

–

= V + 0.2V (Note 5)

+

I

Input Offset Current

V

CM

V

CM

= V – 0.1V

●

60

560

nA

OS

–

= V + 0.2V

–

+

∆I

Input Offset Current Shift

Large-Signal Voltage Gain

V

= V + 0.2V to V – 0.1V

●

120

1120

nA

OS

CM

A

VOL

V = –14.5V to 14.5V, R = 10k

V = –10V to 10V, R = 2k

●

500

250

5000

1800

V/mV

O

L

O

L

Channel Separation

V = –10V to 10V, R = 2k

●

110

81

124

96

dB

O

L

–

+

CMRR

PSRR

Common Mode Rejection Ratio

CMRR Match (Channel-to-Channel) (Note 5)

Power Supply Rejection Ratio

V

CM

V

CM

= V + 0.2V to V – 0.1V

–

+

= V + 0.2V to V – 0.1V

77

95

V = ±5V to ±15V

S

80

93

PSRR Match (Channel-to-Channel) (Note 5)

Output Voltage Swing Low (Note 6)

V = ±5V to ±15V

S

74

95

V

No Load

●

23

187

700

50

350

1400

mV

OL

OH

I

= 5mA

= 25mA

SINK

V

Output Voltage Swing High (Note 6)

No Load

●

16

300

1500

40

600

3000

mV

I

= 5mA

= 25mA

SOURCE

I

Short-Circuit Current

●

±27

±54

5.3

40

mA

SC

Supply Current per Amplifier

Gain-Bandwidth Product (Note 7)

Slew Rate

7

S

GBW

SR

f = 100kHz

A = –1, R = Open, V = ±10V,

20

18

MHz

V/µs

35

V

L

O

Measure at V = ±5V

O

The

range.

● denotes specifications that apply over the full operating temperature

Note 5: Matching parameters are the difference between amplifiers A and

D and between B and C on the LT1633; between the two amplifiers on the

LT1632.

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 6: Output voltage swings are measured between the output and

power supply rails.

Note 2: A heat sink may be required to keep the junction temperature

below the absolute maximum rating when the output is shorted

indefinitely.

Note 7: V = 3V, V = ±15V GBW limit guaranteed by correlation to

S

5V tests.

Note 3: This parameter is not 100% tested.

Note 8: V = 3V, V = 5V slew rate limit guaranteed by correlation to

S

±15V tests.

Note 4: The LT1632C/LT1633C are guaranteed to meet specified

performance from 0°C to 70°C and are designed, characterized and

expected to meet these extended temperature limits, but are not tested at

–40°C and 85°C. Guaranteed I grade parts are available, consult factory.

Note 9: Minimum supply voltage is guaranteed by testing the change of

to be less than 250µV when the supply voltage is varied from 3V to

V

OS

2.7V.

7

LT1632/LT1633

TYPICAL PERFORMANCE CHARACTERISTICS

W

U

V

_OSDistribution, V_CM= 0V

V_OSDistribution, V_CM= 5V

(NPN Stage)

(PNP Stage)

∆V_OSShift for V_CM= 0V to 5V

50

40

30

20

10

0

50

40

30

20

10

0

50

40

30

20

10

0

V

= 5V, 0V

CM

V

= 5V, 0V

CM

V = 5V, 0V

S

= 0V

= 5V

–1250 –750

–250

250

750

1250

–1250 –750

–250

250

750

1250

–1250 –750

–250

250

750

1250

INPUT OFFSET VOLTAGE (µV)

1632/33 G31

1632/33 G32

1632/33 G33

Input Bias Current vs

Common Mode Voltage

Supply Current vs Supply Voltage

Supply Current vs Temperature

2.0

1.5

6.0

5.5

5.0

4.5

4.0

3.5

3.0

2.5

6.0

5.5

5.0

4.5

4.0

3.5

3.0

2.5

2.0

V

= 5V, 0V

S

T

= 125°C

A

1.0

V

S

= ±15V

T

A

= 25°C

0.5

0

V

S

= 5V, 0V

–0.5

–1.0

–1.5

–2.0

T

= 125°C

= –55°C

A

T

A

= 25°C

T

= –55°C

A

T

A

0

–2 –1

1

2

3

4

5

6

16 20 24

TOTAL SUPPLY VOTAGE (V)

–75 –50 –25

0

25 50 75 100 125

0

4

8

12

28 32 36

COMMON MODE VOLTAGE (V)

TEMPERATURE (°C)

1632/33 G03

1630/31 G01

1632/33 G02

Output Saturation Voltage vs Load

Current (Output High)

Output Saturation Voltage vs Load

Current (Output Low)

Input Bias Current vs Temperature

2.8

2.0

10

1

10

1

V

= 5V, 0V

V

S

= 5V, 0V

S

V

= 5V, 0V

CM

S

V

= 5V

1.2

NPN ACTIVE

PNP ACTIVE

V

CM

= ±15V

S

0.4

V

= 15V

0

T

A

= 125°C

T

= 125°C

A

V

CM

= ±15V

= –15V

–0.4

–1.2

–2.0

–2.8

S

T

= 25°C

A

0.1

0.01

V

0.1

0.01

T

A

= 25°C

V

= 5V, 0V

CM

T

A

= –55°C

T

= –55°C

S

A

V

= 0V

–50 –35 –20 –5 10 25 40 55 70 85 100

0.01

0.1

1

10

100

0.01

0.1

1

10

100

TEMPERATURE (°C)

LOAD CURRENT (mA)

1632/33 G06

1632/33 G05

1632/33 G04

8

LT1632/LT1633

W

U

TYPICAL PERFORMANCE CHARACTERISTICS

Noise Current Spectrum

Minimum Supply Voltage

Noise Voltage Spectrum

20

18

16

14

70

60

50

40

30

20

600

500

400

300

200

100

0

V

= 5V, 0V

V

= 5V, 0V

S

12

10

V

= 4.25V

CM

NPN ACTIVE

T

= 25°C

A

8

6

4

2

0

V

= 4.25V

CM

NPN ACTIVE

T

= 125°C

T

A

= –55°C

A

V

= 2.5V

CM

10 PNP ACTIVE

V

= 2.5V

CM

PNP ACTIVE

0

1

10

100

1000

4

1

2

3

5

10

100

1000

TOTAL SUPPLY VOLTAGE (V)

FREQUENCY (Hz)

1632/33 G10

11632/33 G09

1632/33 G07

0.1Hz to 10Hz

Output Voltage Noise

Gain Bandwidth and Phase

Margin vs Supply Voltage

Gain and Phase vs Frequency

80

70

225

180

120

105

90

75

60

45

30

15

0

80

70

60

50

40

30

20

10

0

V

= V /2

S

R

V

= 1k

V

= 5V, 0V

= V /2

CM

L

S

CM

= 3V, 0V

S

V

= ±15V

60

135

90

50

PHASE MARGIN

PHASE

40

45

30

0

GAIN

GAIN BANDWIDTH

20

–45

–90

–135

–180

–225

10

0

–10

–20

0.01

0.1

1

10

100

0

5

15

20

25

30

10

TIME (1SEC/DIV)

FREQUENCY (MHz)

TOTAL SUPPLY VOLTAGE (V)

1632/33 G11

1632/33 G08

1632/33 G14

PSRR vs Frequency

CMRR vs Frequency

Channel Separation vs Frequency

120

110

100

90

100

90

80

70

60

50

40

30

20

10

0

–40

–50

–60

–70

–80

–90

V

= ±15V

S

V

= ±15V

OUT

= 2k

S

= ±10V

P-P

V

= ±15V

S

R

L

V

S

= 5V, 0V

POSITIVE SUPPLY

80

70

60

–100

–110

–120

–130

–140

NEGATIVE SUPPLY

50

40

30

20

1k

10k

100k

1M

10M

1k

10k

100k

1M

10M

10

100

1k

10k

100k

1M

FREQUENCY (Hz)

1632/33 G12

1632/33 G13

1632/33 G15

9

LT1632/LT1633

W

U

TYPICAL PERFORMANCE CHARACTERISTICS

Output Step vs

Slew Rate vs Supply Voltage

Capacitive Load Handling

Settling Time to 0.01%

10

8

55

50

45

40

35

30

25

20

90

80

70

60

50

40

30

V

= ±15V

S

V

A

= 80% OF V

V

A

= 5V, 0V

= 1

OUT

V

S

V

L

= –1

R

= 1k

6

NONINVERTING

INVERTING

4

RISING EDGE

2

0

FALLING EDGE

–2

–4

–6

–8

–10

NONINVERTING

0.25

INVERTING

0.75

0

4

8

12 16 20

28 32 36

24

0

1.00

0.50

1

10

100

1000

TOTAL SUPPLY VOLTAGE (V)

SETTLING TIME (µs)

CAPACITIVE LOAD (pF)

1632/33 G17

1632/33 G16

1632/33 G18

Open-Loop Gain

200

150

100

50

20

15

20

15

V

S

= ±15V

V

S

= 5V, 0V

V = ±15V

S

R

= 100Ω

L

10

5

10

R

L

= 1k

5

R

= 10k

= 1k

L

0

R

L

= 10k

–5

–50

–100

–150

–200

–5

–10

–15

–20

R

L

–10

–15

–20

0

5

–20 –15 –10 –5

10 15 20

1

2

4

0

5

6

–5 –4 –3 –2 –1

0

1

2

3

4

5

6

7

3

OUTPUT VOLTAGE (V)

1632/33 G19

1632/33 G20

1632/33 G21

Total Harmonic Distortion + Noise

vs Frequency

Maximum Undistorted Output

Signal vs Frequency

Warm-Up Drift vs Time

5

4

3

2

1

0

100

0

1

0.1

N8 PACKAGE, V = 5V, 0V

A = 1

V

S

V

= 2V

P-P

= 10k

IN

L

S8 PACKAGE, V = 5V, 0V

R

S

A

= –1

V

= 3V, 0V

S

A

= 1

V

–100

–200

–300

–400

–500

N8 PACKAGE, V = ±15V

S

LT1633CS, V = 5V, 0V

S

0.01

S8 PACKAGE, V = ±15V

S

V

= 5V, 0V AND 3V, 0V

S

A

= –1

V

0.001

LT1633CS, V = ±15V

S

V

= 5V, 0V

S

A

= 1

V

= 5V, 0V

S

0.0001

80

TIME AFTER POWER-UP (SEC)

0

20 40 60

100 120 140 160

1

10

100

1000

0.1

1

10

100

FREQUENCY (kHz)

1630/31 G24

1632/33 G22

1632/33 G23

10

LT1632/LT1633

W

U

TYPICAL PERFORMANCE CHARACTERISTICS

Harmonic Distortion vs Frequency

5V Small-Signal Response

5V Large-Signal Response

0

–20

V

A

V

= 5V, 0V

= 1

S

V

= 2V

IN

P-P

R

= 150Ω

= 1k

L

R

–40

3RD

2ND

–60

–80

163233 G25

1632/33 G26

V_S= 5V, 0V

3RD

A

_V= 1

A_V= 1

2ND

R_L= 1k

R

_L= 1k

–100

100

1000

2000

200

500

FREQUENCY (kHz)

1632/33 G29

±15V Small-Signal Response

Harmonic Distortion vs Frequency

±15V Large-Signal Response

0

–20

V

A

V

= 5V, 0V

= –1

S

V

= 2V

IN

P-P

R

= 150Ω

= 1k

L

R

2ND

–40

3RD

–60

2ND

3RD

–80

1632/33 G27

1632/33 G28

V_S= ±15V

_V= 1

_L= 1k

V_S= ±15V

A

A_V= 1

R

R_L= 1k

–100

100

1000

2000

200

500

FREQUENCY (kHz)

16312/03030G30

U

W U U

APPLICATIONS INFORMATION

Rail-to-Rail Input and Output

PNP pair becomes inactive for the rest of the input com-

mon mode range up to the positive supply.

The LT1632/LT1633 are fully functional for an input and

output signal range from the negative supply to the posi- The output is configured with a pair of complementary

tive supply. Figure 1 shows a simplified schematic of the common emitter stages Q14/Q15 that enables the output

amplifier. The input stage consists of two differential to swing from rail to rail. These devices are fabricated on

amplifiers, a PNP stage Q1/Q2 and an NPN stage Q3/Q4 Linear Technology’s proprietary complementary bipolar

that are active over different ranges of input common process to ensure similar DC and AC characteristics.

mode voltage. The PNP differential input pair is active for Capacitors C1 and C2 form local feedback loops that lower

input common mode voltages V_CMbetween the negative the output impedance at high frequencies.

supply to approximately 1.5V below the positive supply.

Power Dissipation

As V_CMmoves closer toward the positive supply, the

transistor Q5 will steer the tail current I₁to the current

mirror Q6/Q7, activating the NPN differential pair and the

The LT1632/LT1633 amplifiers combine high speed and

large output current drive in a small package. Because the

11

LT1632/LT1633

U

W U U

APPLICATIONS INFORMATION

+

V

R3

R4

R5

R6

225Ω

+

Q12

+IN

Q11

Q13

Q15

I

1

D1

+

D6

D5

D8

D7

I

2

C2

D2

V

BIAS

Q5

–

R7

225Ω

C

V

C

OUT

–IN

Q4 Q3

Q1 Q2

D3

BUFFER

AND

OUTPUT BIAS

Q9

R1

Q8

D4

C1

Q7

Q6

Q14

–

R2

V

1632/33 F01

Figure 1. LT1632 Simplified Schematic Diagram

amplifiers operate over a very wide supply range, it is

possible to exceed the maximum junction temperature of

150°C in plastic packages under certain conditions. Junc-

tion temperature T_Jis calculated from the ambient tem-

perature T_Aand power dissipation P_Das follows:

P

_DMAX= (30V • 5.6mA) + (15V – 7.5V)(7.5/500)

= 0.168 + 0.113 = 0.281W

If both amplifiers are loaded simultaneously, thenthe total

power dissipation is 0.562W. The SO-8 package has a

junction-to-ambientthermalresistanceof190°C/Winstill

air. Therefore, themaximumambienttemperaturethatthe

part is allowed to operate is:

LT1632CN8: T_J= T_A+ (P_D• 130°C/W)

LT1632CS8: T_J= T_A+ (P_D• 190°C/W)

LT1633CS: T_J= T_A+ (P_D• 150°C/W)

T_A= T_J– (P_DMAX• 190°C/W)

ThepowerdissipationintheICisthefunctionofthesupply

voltage, output voltage and load resistance. For a given

supply voltage, the worst-case power dissipation P_DMAX

occurs at the maximum supply current and when the

output voltage is at half of either supply voltage (or the

maximum swing if less than 1/2 supply voltage). There-

fore P_DMAXis given by:

T_A= 150°C – (0.562W • 190°C/W) = 43°C

For a higher operating temperature, lower the supply

voltage or use the DIP package part.

Input Offset Voltage

The offset voltage changes depending upon which input

stage is active, and the maximum offset voltages are

trimmed to less than 1350µV. To maintain the precision

characteristics of the amplifier, the change of V_OSover the

entire input common mode range (CMRR) is guaranteed

to be less than 1500µV on a single 5V supply.

P_DMAX= (V_S• I_SMAX) + (V_S/2)²/R_L

To ensure that the LT1632/LT1633 are used properly,

calculate the worst-case power dissipation, use the ther-

mal resistance for a chosen package and its maximum

junction temperature to derive the maximum ambient

temperature.

Input Bias Current

The input bias current polarity depends on the input

common mode voltage. When the PNP differential pair is

active, the input bias currents flow out of the input pins.

Example: An LT1632CS8 operating on ±15V supplies and

driving a 500Ω, the worst-case power dissipation per

amplifier is given by:

12

LT1632/LT1633

U

W U U

APPLICATIONS INFORMATION

They flow in the opposite direction when the NPN input

stage is active. The offset voltage error due to input bias

currents can be minimized by equalizing the noninverting

and inverting input source impedance.

tolessthan10mA.Internal225ΩresistorsR6andR7will

limittheinputcurrentfordifferentialinputsignalsof4.5V

or less. For larger input levels, a resistor in series with

either or both inputs should be used to limit the current.

Worst-casedifferentialinputvoltageusuallyoccurswhen

the output is shorted to ground. In addition, the amplifier

is protected against ESD strikes up to 3kV on all pins.

Output

The outputs of the LT1632/LT1633 can deliver large load

currents; the short-circuit current limit is 70mA. Take care

to keep the junction temperature of the IC below the

absolute maximum rating of 150°C (refer to the Power

Dissipation section). The output of these amplifiers have

reverse-biased diodes to each supply. If the output is

forced beyond either supply, unlimited current will flow

throughthesediodes.Ifthecurrentistransientandlimited

to several hundred mA, no damage to the part will occur.

Capacitive Load

The LT1632/LT1633 are wideband amplifiers that can

drive capacitive loads up to 200pF on ±15V supplies in a

unity-gain configuration. On a 3V supply, the capacitive

load should be kept to less than 100pF. When there is a

need to drive larger capacitive loads, a resistor of 20Ω to

50Ω should be connected between the output and the

capacitiveload.Thefeedbackshouldstillbetakenfromthe

output so that the resistor isolates the capacitive load to

ensure stability.

Overdrive Protection

To prevent the output from reversing polarity when the

input voltage exceeds the power supplies, two pairs of

crossing diodes D1 to D4 are employed. When the input

voltage exceeds either power supply by approximately

700mV, D1/D2 or D3/D4 will turn on, forcing the output to

the proper polarity. For this phase reversal protection to

work properly, the input current must be limited to less

than 5mA. If the amplifier is to be severely overdriven, an

external resistor should be used to limit the overdrive

current.

Feedback Components

The low input bias currents of the LT1632/LT1633 make it

possible to use the high value feedback resistors to set the

gain. However, care must be taken to ensure that the pole

formedbythefeedbackresistorsandthetotalcapacitance

at the inverting input does not degrade stability. For

instance, the LT1632/LT1633 in a noninverting gain of 2,

set with two 20k resistors, will probably oscillate with

10pF total input capacitance (5pF input capacitance and

5pF board capacitance). The amplifier has a 6MHz cross-

ing frequency and a 55° phase margin at 6dB of gain. The

feedback resistors and the total input capacitance form a

pole at 1.6MHz that induces a phase shift of 75° at 5MHz!

The solution is simple: either lower the value of the

resistors or add a feedback capacitor of 10pF or more.

The LT1632/LT1633’s input stages are also protected

against large differential input voltages by a pair of back-

to-back diodes D5/D8. When a differential voltage of

more than 1.4V is applied to the inputs, these diodes will

turn on, preventing the emitter-base breakdown of the

input transistors. The current in D5/D8 should be limited

U

TYPICAL APPLICATIONS

Single Supply, 40dB Gain, 550kHz Instrumentation

Amplifier

The amplifier has a nominal gain of 100, which can be

adjusted with resistor R5. The DC output level is set by the

difference of the two inputs multiplied by the gain of 100.

The voltage gain and the DC output level can be

expressed as follows:

An instrumentation amplifier with a rail-to-rail output

swing,operatingfroma3Vsupplycanbeconstructedwith

the LT1632 as shown in the first page of this data sheet.

13

LT1632/LT1633

TYPICAL APPLICATIONS

U

10

0

R4

R3

R2 R3 +R2

A =

1+

+

V

R1

R5

–10

–20

–30

–40

–50

–60

–70

–80

–90

+

IN

−

IN

V

= V − V

• A

V

OUT

Common mode range can be calculated by the following

equations:

V

= 3V, 0V

S

= 2.5V

IN

P-P

Lower limit common mode input voltage

0.1k

1k

10k

100k

1M

10M

FREQUENCY (Hz)

V

A

R2

R5

1.0

1.1

OUT

1632/33 F03

V

=

+ 0.1V

CML

V

Figure 3. Frequency Response

Upper limit common mode input voltage

V

A

R2

R5

1.0

1.1

With a 2.25V_P-P, 100kHz input signal on a 3V supply, the

filter has harmonic distortion of less than –87dBc.

OUT

V

=

+ V − 0.15V

(

)

CMH

S

V

where V is supply voltage.

RF Amplifier Control Biasing and DC Restoration

S

Taking advantage of the rail-to-rail input and output, and

the large output current capability of the LT1632, the

circuit shown in Figure 4 provides precise bias current for

the RF amplifiers and restores the DC output level. To

ensure optimum performance of an RF amplifier, its bias

point must be accurate and stable over the operating

For example, the common mode range is from 0.15V to

2.65V if the output is set at one half of the 3V supply. The

common mode rejection is greater than 110dB at 100Hz

when trimmed with resistor R1. The amplifier has a

bandwidth of 550kHz.

Single Supply, 400kHz, 4th Order Butterworth Filter

5V

ThecircuitshowninFigure2makesuseofthelowvoltage

operation and the wide bandwidth of the LT1632 to create

a400kHz4thorderlowpassfilterwithasinglesupply. The

amplifiers are configured in the inverting mode to mini-

mize common mode induced distortion and the output

can swing rail-to-rail for the maximum dynamic range.

Figure 3 displays the frequency response of the filter.

Stopband attenuation is greater than 85dB at 10MHz.

R4

10Ω

R2

R1

453Ω

10Ω

5V

–

Q1

2N3906

A1

Q2

2N3906

1/2 LT1632

+

C1

0.01µF

R3

10k

+

C6

0.01µF

C5

0.01µF

L1

220µH

L2

220µH

HP-MSA0785

RF2

HP-MSA0785

RF1

C3

C2

1500pF

C4

1500pF

V

IN

V

OUT

47pF

2.32k

6.65k

L3

3.9µH

L4

2.32k

22pF

2.74k

5.62k

–

3.9µH

V

IN

2.74k

–

+

220pF

1/2 LT1632

+

A2

1632/33 F04

470pF

V

1/2 LT1632

+

R5

50Ω

OUT

1/2 LT1632

–

V /2

S

1632/33 F02

Figure 4. RF Amplifier Control Biasing and DC Restoration

Figure 2. Single Supply, 400kHz, 4th Order Butterworth Filter

14

LT1632/LT1633

U

TYPICAL APPLICATIONS

temperature range. The op amp A1 combined with Q1, Q2,

R1, R2 and R3 establishes two current sources of 21.5mA

to bias RF1 and RF2 amplifiers. The current of Q1, is

determined by the voltage across R2 over R1, which is

thenreplicatedinQ2.Thesecurrentsourcesarestableand

precise over temperature and have a low dissipated power

due to a low voltage drop between their terminals. The

amplifier A2 is used to restore the DC level at the output.

With a large output current of the LT1632, the output can

be set at 1.5V DC on 5V supply and 50Ω load. This circuit

has a –3dB bandwidth from 2MHz to 2GHz and a power

gain of 25dB.

U

Dimensions in inches (millimeters) unless otherwise noted.

PACKAGE DESCRIPTION

N8 Package

8-Lead PDIP (Narrow 0.300)

(LTC DWG # 05-08-1510)

0.400*

(10.160)

MAX

0.130 ± 0.005

(3.302 ± 0.127)

0.300 – 0.325

(7.620 – 8.255)

0.045 – 0.065

(1.143 – 1.651)

8

1

7

6

5

4

0.065

(1.651)

TYP

0.255 ± 0.015*

(6.477 ± 0.381)

0.009 – 0.015

(0.229 – 0.381)

0.125

0.020

(0.508)

MIN

(3.175)

MIN

+0.035

–0.015

2

3

0.325

0.100 ± 0.010

(2.540 ± 0.254)

0.018 ± 0.003

+0.889

8.255

N8 1197

(

)

(0.457 ± 0.076)

–0.381

*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.

MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)

S8 Package

8-Lead Plastic Small Outline (Narrow 0.150)

(LTC DWG # 05-08-1610)

0.189 – 0.197*

(4.801 – 5.004)

0.010 – 0.020

(0.254 – 0.508)

7

5

8

6

× 45°

0.053 – 0.069

(1.346 – 1.752)

0.004 – 0.010

(0.101 – 0.254)

0.008 – 0.010

(0.203 – 0.254)

0°– 8° TYP

0.150 – 0.157**

(3.810 – 3.988)

0.228 – 0.244

(5.791 – 6.197)

0.016 – 0.050

0.406 – 1.270

0.050

(1.270)

TYP

0.014 – 0.019

(0.355 – 0.483)

*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH

SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD

FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE

1

2

3

4

SO8 0996

S Package

14-Lead Plastic Small Outline (Narrow 0.150)

(LTC DWG # 05-08-1610)

0.337 – 0.344*

(8.560 – 8.738)

0.010 – 0.020

(0.254 – 0.508)

14

13

12

11

10

9

8

× 45°

0.053 – 0.069

(1.346 – 1.752)

0.004 – 0.010

(0.101 – 0.254)

0.008 – 0.010

(0.203 – 0.254)

0° – 8° TYP

0.228 – 0.244

(5.791 – 6.197)

0.150 – 0.157**

(3.810 – 3.988)

0.050

(1.270)

TYP

0.014 – 0.019

(0.355 – 0.483)

0.016 – 0.050

0.406 – 1.270

*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH

SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE

**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD

FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE

S14 0695

1

2

3

4

5

6

7

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-

tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.

15

LT1632/LT1633

U

TYPICAL APPLICATION

Tunable Q Notch Filter

decrease Q as depicted in Figure 6, because the output

induces less of feedback to amplifier A2. The value of R7

should be equal or greater than R9 to prevent oscillation.

If R8 is a short and R9 is larger than R7, then the positive

feedbackfromtheoutputwillcreatephaseinversionatthe

output of amplifier A2, which will lead to oscillation.

A single supply, tunable Q notch filter as shown in Figure

5 is built with LT1632 to maximize the output swing. The

filter has a gain of 2, and the notch frequency (f_O) is set by

thevaluesofRandC. TheresistorsR10andR11setupthe

DC level at the output. The Q factor can be adjusted by

varying the value of R8. The higher value of R8 will

C

1000pF

C1

2.2µF

5V

40

20

R

+

V

IN

1.62k

A1

V

R

OUT

1/2 LT1632

R1

1.62k

1

INCREASING R8

–

f =

500Ω

O

C

2πRC

R2

1k

1000pF

0

–20

–40

R = 1.62k

C = 1000pF

R6

1k

R5

1k

DECREASING R8

R11

R11+R10

–

V

= 5V

= 2.5V

O(DC)

C5

4.7µF

R7

1k

A2

A

= 2

V

5V

1/2 LT1632

+

R10

10k

R8

5k

R9

1k

0

20 40 60 80 100 120 140 160 180 200

1632/33 F05

FREQUENCY (kHz)

C2

4.7µF

R11

10k

13632/33 F06

Figure 6. Frequency Response

Figure 5. Tunable Q Notch Filter

RELATED PARTS

PART NUMBER

DESCRIPTON

COMMENTS

Input Common Mode Includes Ground, 275µV V

LT1211/LT1212 Dual/Quad 14MHz, 7V/µs, Single Supply Precision Op Amps

,

OS(MAX)

6µV/°C Max Drift, Max Supply Current 1.8mA per Op Amp

LT1213/LT1214 Dual/Quad 28MHz, 12V/µs, Single Supply Precision Op Amps

LT1215/LT1216 Dual/Quad 23MHz, 50V/µs, Single Supply Precision Op Amps

Input Common Mode Includes Ground, 275µV V

6µV/°C Max Drift, Max Supply Current 3.5mA per Op Amp

,

OS(MAX)

Input Common Mode Includes Ground, 450µV V

,

OS(MAX)

6µV/°C Max Drift, Max Supply Current 6.6mA per Op Amp

LT1498/LT1499 Dual/Quad 10MHz, 6V/µs Rail-to-Rail Input and Output

High DC Accuracy, 475µV V

Max Supply Current 2.2mA per Amp

, 4µV/°C Max Drift,

OS(MAX)

C-Load^TMOp Amps

LT1630/LT1631 Dual/Quad 30MHz, 10V/µs Rail-to-Rail Input and Output Op Amps High DC Accuracy, 525µV V , 70mA Output Current,

OS(MAX)

Max Supply Current 4.4mA per Amp

C-Load is a trademark of Linear Technology Corporation.

16323f LT/TP 0998 4K • PRINTED IN USA

LINEAR TECHNOLOGY CORPORATION 1998

16 ^{Linear Technology Corporation}

1630 McCarthy Blvd., Milpitas, CA 95035-7417

●

(408)432-1900 FAX:(408)434-0507 www.linear-tech.com


型号：	LT1632CS8
厂家：	Linear
描述：	45MHz, 45V/us, Dual/Quad Rail-to-Rail Input and Output Precision Op Amps 为45MHz ， 45V / us的，双/四轨至轨输入和输出精密运算放大器运算放大器光电二极管
文件：	总16页 (文件大小：369K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

LT1632CS8 [Linear]

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