LT1006CN8#PBF_技术文档

LT1006

Precision, Single Supply

Op Amp

U

FEATURES

DESCRIPTIO

TheLT^®1006isthefirstprecisionsinglesupplyoperational

amplifier. Its design has been optimized for single supply

operation with a full set of specifications at 5V.

Specifications at ±15V are also provided.

■

Single Supply Operation

Input Voltage Range Extends to Ground

Output Swings to Ground while Sinking Current

■

Guaranteed Offset Voltage: 50µV Max

■

Guaranteed Low Drift: 1.3µV/°C Max

The LT1006 has a low offset voltage of 20µV, drift of

0.2µV/°C, offset current of 120pA, gain of 2.5 million,

common mode rejection of 114dB and power supply

rejection of 126dB.

■

Guaranteed Offset Current: 0.5nA Max

■

Guaranteed High Gain

5mA Load Current: 1.5 Million Min

17mA Load Current: 0.8 Million Min

Guaranteed Low Supply Current: 520µA Max

Supply Current can be Reduced by a Factor of 4

Low Voltage Noise, 0.1Hz to 10Hz: 0.55µV_P-P

Low Current Noise—

■

Although supply current is only 340µA, a novel output

stage can source or sink in excess of 20mA while retaining

high voltage gain. Common mode input range includes

ground to accommodate low ground-referenced inputs

from strain gauges or thermocouples, and output can

swing to within a few millivolts of ground. If a higher

slew rate (in excess of 1V/µs) or micropower operation

(supply current down to 90µA) is required, the operating

currents can be modified by connecting an external

optional resistor to Pin 8.

Better than OP-07: 0.07pA/√Hz at 10Hz

High Input Impedance: 250MΩ Min

Minimum Supply Voltage: 2.7V Min

U

■

APPLICATIO S

■

Low Power Sample-and-Hold Circuits

Battery-Powered Precision Instrumentation

Forsimilarsinglesupplyprecisiondualandquadopamps,

pleaseseetheLT1013/LT1014datasheet.Formicropower

dual and quad op amps, please see the LT1078/LT1079

data sheet.

■

Strain Gauge Signal Conditioners

Thermocouple Amplifiers

■

4mA to 20mA Current Loop Transmitters

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

■

Active Filters

U

TYPICAL APPLICATIO

LT1006 Single Supply, Micropower Sample and Hold

Distribution of Input Offset Voltage

9V

20

V

T

= 5V, 0V

= 25°C

S

A

18

350 LT1006s TESTED

FROM TWO RUNS

J AND N PACKAGES

360k

16

14

12

10

8

1/4 CD4066

390Ω

S3

S4

390Ω

8

2

3

1/2 CD4066

7

–

7

6

2

3

A2

LT1006

–

+

8

OUTPUT

S1

S2

4

6

A1

LT1006

+

4

2

INPUT

0V TO 5V

0.01µF

0

4

ACQUISITION TIME

HOLD SETTLING TIME

S-H OFFSET

HOLD SUPPLY CURRENT

SAMPLE SUPPLY CURRENT

1kHz SAMPLE RATE CURRENT

20µs

–80

80

–40

40

INPUT OFFSET VOLTAGE (µV)

0

10µs

1/2 CD4066

1mV

LT1006 • G01

SAMPLE-HOLD COMMAND

HIGH = SAMPLE

250µA

5.0mA

800µA

LT1006 • TA01

LOW = HOLD

1006fa

1

LT1006

W W

U W

(Note 1)

ABSOLUTE AXI U RATI GS

Supply Voltage ...................................................... ±22V

Input Voltage ............... Equal to Positive Supply Voltage

Input Voltage ............5V Below Negative Supply Voltage

Differential Input Voltage ......................................... 30V

Output Short-Circuit Duration.......................... Indefinite

Operating Temperature Range

LT1006AM/LT1006M (OBSOLETE)....– 55°C to 125°C

LT1006AC/LT1006C/LT1006S8 ............... 0°C to 70°C

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

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

U W

U

PACKAGE/ORDER I FOR ATIO

TOP VIEW

ORDER

I

SET

V

TRIM

–IN

SY

OS

PART NUMBER

TOP VIEW

SET

1

2

3

4

8

7

6

5

(NOTE 3)

–

+

I

+

SY

V

(NOTE 3)

LT1006AMH

LT1006MH

LT1006ACH

LT1006CH

LT1006CN8

LT1006S8

+IN

OUT

8

+

V

OS

V

7

5

1

3

V

TRIM

–

OS

V

TRIM

(NOTE 4)

–

+

S8 PART MARKING

1006

–IN

2

6

OUT

N8 PACKAGE

8-LEAD PDIP

S8 PACKAGE

8-LEAD PLASTIC SO

V

+IN

OS

TRIM

(NOTE 4)

T_JMAX= 100°C, θ_JA= 130°C/W (N8)

_JMAX= 150°C, θ_JA= 200°C/W (S8)

4

T

–

V

(CASE)

LT1006AMJ8

LT1006MJ8

LT1006ACJ8

LT1006CJ8

J8 PACKAGE 8-LEAD CERDIP

H PACKAGE

8-LEAD TO-5 METAL CAN

= 150°C, θ = 150°C, θ = 45°C

T

_JMAX= 100°C, θ_JA= 130°C/W

T

JMAX

JA

JC

OBSOLETE PACKAGES

Consider the N8 or S8 Package for Alternate Source

Consult LTC Marketing for parts specified with wider operating temperature ranges.

ELECTRICAL CHARACTERISTICS

V_S= 5V, V_CM= 0V, V_OUT= 1.4V, T_A= 25°C, unless otherwise noted.

LT1006AM/AC

TYP

LT1006M/C

TYP MAX UNITS

SYMBOL PARAMETER

CONDITIONS

LT1006S8

MIN

MAX

MIN

V

Input Offset Voltage

20

50

30

80

400

µV

OS

∆V

∆Time

Long-Term Input Offset

Voltage Stability

0.4

0.5

0.7

µV/Mo

OS

I

Input Offset Current

Input Bias Current

0.12

9

0.5

15

0.15

10

0.9

25

nA

OS

B

e

Input Noise Voltage

Input Noise Voltage Density

0.1Hz to 10Hz

0.55

µV

P-P

n

f = 10Hz

23

22

32

25

23

22

32

25

nV/√Hz

O

f = 1000Hz

O

i

Input Noise Current Density

f = 10Hz

O

0.07

0.08

pA/√Hz

n

Input Resistance

Differential Mode

Common Mode

(Note 2)

180

400

5

100

300

4

MΩ

GΩ

1006fa

2

LT1006

V_S= 5V, V_CM= 0V, V_OUT= 1.4V, T_A= 25°C, unless otherwise noted.

ELECTRICAL CHARACTERISTICS

LT1006AM/AC

TYP

LT1006M/C

SYMBOL PARAMETER

Input Voltage Range

CONDITIONS

MIN

MAX

MIN

TYP

MAX UNITS

3.5

0

3.8

–0.3

3.5

0

3.8

–0.3

V

CMRR

PSRR

Common Mode Rejection Ratio

Power Supply Rejection Ratio

Large-Signal Voltage Gain

V

= 0V to 3.5V

100

106

114

126

97

112

124

dB

CM

V = ±2V to ±18V, V = 0V

103

S

O

A

V = 0.03V to 4V, R = 10k

V = 0.03V to 3.5V, R = 2k

1.0

0.5

2.5

2.0

0.7

0.3

2.0

1.8

V/µV

VOL

O

L

O

L

Maximum Output Voltage Swing

Output Low, No Load

15

5

220

4.4

4.0

25

10

350

15

5

220

4.4

4.0

25

10

350

mV

V

Output Low, 600Ω to GND

Output Low, I = 1mA

SINK

Output High, No Load

Output High, 600Ω to GND

4.0

3.4

4.0

3.4

V

SR

Slew Rate

0.25

0.4

0.25

0.4

V/µs

I

Supply Current

R

SET

R

SET

= ∞

340

90

520

350

90

570

µA

S

= 180k Pin 8 to Pin 7(Note 3)

Minimum Supply Voltage

2.7

V

The ■ denotes the specifications which apply over the full operating temperature range. V_S= 5V, 0V; V_CM= 0.1V; V_O= 1.4V;

–55°C ≤ T_A≤ 125°C, unless otherwise noted.

LT1006AM

TYP

LT1006M

TYP

SYMBOL PARAMETER

CONDITIONS

MIN

MAX

180

1.3

MIN

MAX UNITS

V

Input Offset Voltage

■

40

60

250

1.8

µV

OS

∆V

OS

Input Offset Voltage Drift

0.2

0.3

µV/°C

∆Temp

I

Input Offset Current

■

0.4

13

2.0

25

0.5

16

4.0

40

nA

OS

B

Input Bias Current

A

Large-Signal Voltage Gain

Common Mode Rejection Ratio

Power Supply Rejection Ratio

Maximum Output Voltage Swing

V = 0.05V to 3.5V, R = 2k

0.25

90

0.8

103

117

0.15

87

0.7

102

116

V/µV

dB

VOL

O

L

CMRR

PSRR

V

= 0.1V to 3.2V

CM

V = ±2V to ±18V, V = 0V

100

97

dB

S

O

Output Low, 600Ω to GND

Output High, 600Ω to GND

■

6

3.8

15

6

3.8

18

mV

V

3.2

3.1

I

Supply Current

■

380

630

400

680

µA

S

1006fa

3

LT1006

ELECTRICAL CHARACTERISTICS

The ■ denotes the specifications which apply over the full operating

temperature range. V_S= 5V, 0V; V_CM= 0V; V_O= 1.4V; 0°C ≤ T_A≤ 70°C, unless otherwise noted.

LT1006AC

LT1006C

TYP

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

MIN

MAX UNITS

V

Input Offset Voltage

J8/H Package

N8 Package

S8 Package

■

30

110

45

50

110

160

190

560

µV

OS

∆V

∆Temp

Input Offset Voltage Drift

J8/H Package

N8 Package

S8 Package

■

0.2

1.3

0.3

0.5

0.7

1.8

2.5

3.5

µV/°C

OS

I

Input Offset Current

■

0.25

11

1.2

20

0.3

12

2.5

30

nA

OS

B

Input Bias Current

A

Large-Signal Voltage Gain

Common Mode Rejection Ratio

Power Supply Rejection Ratio

Maximum Output Voltage Swing

V = 0.04V to 3.5V, R = 2k

0.35

96

1.3

0.25

92

1.2

108

118

V/µV

dB

VOL

O

L

CMRR

PSRR

V

= 0V to 3.4V

109

120

CM

V = ±2V to ±18V, V = 0V

101

97

dB

S

O

Output Low, 600Ω to GND

Output High, 600Ω to GND

■

6

3.9

13

6

3.9

13

mV

V

3.3

3.2

I

Supply Current

■

350

570

360

620

µA

S

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

LT1006AM/AC

TYP

LT1006M/C

TYP MAX UNITS

SYMBOL PARAMETER

CONDITIONS

LT1006S8

MIN

MAX

MIN

V

Input Offset Voltage

30

100

50

180

525

µV

OS

100

I

Input Offset Current

Input Bias Current

Input Voltage Range

0.1

7.5

0.5

0.15

8

0.9

20

nA

OS

12.0

B

13.5

–15.0

13.8

–15.3

13.5

–15.0

13.8

–15.3

V

CMRR

PSRR

Common Mode Rejection Ratio

Power Supply Rejection Ratio

Large Signal Voltage Gain

V

= +13.5V, –15V

100

106

117

126

97

116

124

dB

CM

V = ±2V to ±18V, V = 0V

103

S

O

A

V = ±10V, R = 2k

V = ±10V, R = 600Ω

1.5

0.8

5.0

1.5

1.2

0.5

4.0

1.0

V/µV

VOL

O

L

O

L

V

Maximum Output Voltage Swing

Slew Rate

R = 2k

±13

±14

±12.5

±14

V

OUT

L

SR

R

SET

R

SET

= ∞

0.25

1.0

0.4

1.2

0.25

1.0

0.4

1.2

V/µs

= 390Ω Pin 8 to Pin 4

I

Supply Current

360

540

360

600

µA

S

1006fa

4

LT1006

ELECTRICAL CHARACTERISTICS

The ■ denotes the specifications which apply over the full operating

temperature range. V_S= ±15V, –55°C ≤ T_A≤ 125°C, unless otherwise noted.

LT1006AM

TYP

LT1006M

TYP

SYMBOL PARAMETER

CONDITIONS

MIN

MAX

320

2.2

MIN

MAX UNITS

V

Input Offset Voltage

■

80

110

0.6

460

2.8

µV

OS

∆V

Input Offset Voltage Drift

0.5

µV/°C

OS

∆Temp

I

Input Offset Current

■

0.2

9

2.0

18

0.3

11

3.0

27

nA

OS

B

Input Bias Current

A

Large-Signal Voltage Gain

Common Mode Rejection Ratio

Power Supply Rejection Ratio

Maximum Output Voltage Swing

Supply Current

V = ±10V, R = 2k

0.5

97

1.5

0.25

94

1.0

V/µV

dB

VOL

O

L

CMRR

PSRR

V

= +13V, –14.9V

114

117

±13.8

400

113

116

±13.8

400

CM

V = ±2V to ±18V, V = 0V

S

100

±12

97

dB

O

R = 2k

L

±11.5

V

I

650

750

µA

S

The ■ denotes the specifications which apply over the full operating temperature range. V_S= ±15V, 0°C ≤ T_A≤ 70°C, unless otherwise

noted.

LT1006AC

TYP

LT1006C

TYP

SYMBOL PARAMETER

CONDITIONS

MIN

MAX

MIN

MAX UNITS

V

Input Offset Voltage

J8/H Package

N8 Package

S8 Package

■

50

200

75

80

150

300

330

730

µV

OS

∆V

∆Temp

Input Offset Voltage Drift

J8/H Package

N8 Package

S8 Package

■

0.5

2.2

0.6

0.7

1.0

2.8

3.5

4.5

µV/°C

OS

I

Input Offset Current

■

0.15

8

1

0.25

10

2

nA

OS

B

Input Bias Current

15

23

A

Large-Signal Voltage Gain

Common Mode Rejection Ratio

Power Supply Rejection Ratio

Maximum Output Voltage Swing

Supply Current

V = ±10V, R = 2k

1

3

0.7

94

2.5

V/µV

dB

VOL

O

L

CMRR

PSRR

V

= 13V, –15V

98

116

120

±13.9

370

114

118

±13.8

380

CM

V = ±2V to ±18V, V = 0V

S

101

±12.5

97

dB

O

R = 2k

L

±11.5

V

I

600

660

µA

S

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

of a device may be impaired.

Note 4: Optional offset nulling is accomplished with a potentiometer

connected between the trim terminals and the wiper to V . A 10k pot

–

(providing a null range of ±6mV) is recommended for minimum drift of

nulled offset voltage with temperature. For increased trim resolution and

accuracy, two fixed resistors can be used in conjunction with a smaller

potentiometer. For example, two 4.7k resistors tied to Pins 1 and 5, with a

500Ω pot in the middle, will have a null range of ±150µV.

Note 2: This parameter is guaranteed by design and is not tested.

Note 3: Regular operation does not require an external resistor. In order

to program the supply current for low power or high speed operation,

connect an external resistor from Pin 8 to Pin 7 or from Pin 8 to Pin 4,

respectively. Supply current specifications (for R = 180k) do not include

SET

current in R

.

SET

1006fa

5

LT1006

U W

TYPICAL PERFOR A CE CHARACTERISTICS

Offset Voltage Drift with Temperature

of Representative Units

Offset Voltage vs Balanced Source

Resistor

V_OSvs Common Mode Voltage

vs Temperature

150

120

90

10

500

400

300

200

100

0

V

= 5V, 0V

CM

V = 5V, 0V

S

V

= 5V, 0V, –55°C TO 125°C

S

= 0.1V

R

S

–

+

60

1.0

30

T = 125°C

1

0

V

= ±15V,

S

–30

–60

–90

–120

–150

–55°C TO 125°C

1 T = 25°C

T = 25°C

2

0.1

–100

–200

–300

2 T = 125°C

POSITIVE V

1

OS

V

= ±15V, 25°C

S

2 NEGATIVE V

V

= 5V, 0V, 25°C

OS

S

0.01

–50

0

25

50

75 100 125

1k 3k 10k 30k 100k 300k 1M 3M 10M

–25

–0.4

0

0.4

0.8

1.0

1.4

TEMPERATURE (°C)

BALANCED SOURCE RESISTANCE, R (Ω)

COMMON MODE INPUT VOLTAGE (V)

S

LT1006 • G02

LT1006 • G03

LT1006 • G04

Voltage Gain vs Load Resistance,

V_S= 5V, 0V

Voltage Gain vs Load Resistance

with V_S= ±15V

Warm-Up Drift

10M

1M

2.0

1.5

1.0

0.5

0

10M

1M

V

= 5V, 0V

S

A

T

= 25°C

T

= 25°C

A

T

= –55°C

T = –55°C

A

T

= 25°C

A

T

= 125°C

A

T

= 125°C

A

LT1006 METAL CAN (H) PACKAGE

LT1006 CERDIP (J) PACKAGE

100k

100

1k

10k

2

3

0

4

1

100

1k

LOAD RESISTANCE TO GROUND (Ω)

10k

LOAD RESISTANCE TO GROUND (Ω)

TIME AFTER POWER ON (MIN)

LT1006 • G06

LT1006 • G07

LT1006 • G05

Input Offset Current

vs Temperature

Input Bias Current

Input Bias Current vs Temperature

vs Common Mode Voltage

18

15

12

9

0.5

0.4

0.3

0.2

0.1

0

5

4

15

10

5

V

= 0V

CM

V

= 0V

CM

3

V

= 5V, 0V

S

2

0

V

= 5V, 0V

S

V

= ±15V

S

1

–5

–10

–15

6

3

0

V

= ±15V

S

V

= 5V, 0V, T = 125°C

S

0

V

= ±15V,

S

T = 25°C

V

= 5V, 0V, T = 25°C

S

–1

50

100 125

–50 –25

0

25

75

–50

0

25

50

75 100 125

–18

–25

0

–6

–12

–24

INPUT BIAS CURRENT (nA)

TEMPERATURE (°C)

TEMPERATURE (˚C)

LT1006 • G08

LT1006 • G09

LT1006 • G10

1006fa

6

LT1006

U W

TYPICAL PERFOR A CE CHARACTERISTICS

10Hz Voltage Noise Distribution

Noise Spectrum

0.1Hz to 10Hz Noise

1000

100

80

60

40

20

0

T

V

= 25°C

= ±2V TO ±18V

V

T

= ±2.5V

= 25°C

V

T

= ±2V TO ±15V

= 25°C

A

S

A

S

A

200 UNITS TESTED

FROM THREE RUNS

300

100

CURRENT NOISE

VOLTAGE NOISE

30

10

1/f CORNER 2Hz

10

16

24

28

1

100

FREQUENCY (Hz)

1k

20

32

0

2

4

6

8

10

TIME (SEC)

VOLTAGE NOISE DENSITY (nV/√Hz)

LT1006 • G13

LT1006 • G12

LT1006 • G11

Supply Current vs Temperature

Reducing Power Dissipation

Increasing Slew Rate (R_SETto V^–)

10

500

450

400

350

300

250

1000

100

10

1

V

= ±15V

V

= 5V, 0V

S

OR V = 5V, 0V

S

SR

I

*

SY

V

= ±15V

S

1

0.1

SR

V

= 5V, 0V

S

PIN 8 IS APPROXIMATELY

60mV ABOVE THE NEGATIVE SUPPLY

PIN 8 IS APPROXIMATELY

60mV ABOVE THE NEGATIVE SUPPLY

0.1

0.01

50

75 100 125

100

1k

10k

–50

0

25

50

10

5

1

0.5

–25

R

, PIN 8 TO PIN 4 (Ω)

CURRENT INJECTED INTO PIN 8 (µA)

TEMPERATURE (°C)

SET

LT1006 • G16

LT1006 • G14

*I DOES NOT INCLUDE CURRENT THROUGH R

SY

SET

LT1006 • G15

Output Saturation vs Sink Current

vs Temperature

Maximum Output Swing

Common Mode Rejection Ratio

vs Frequency

vs Load Resistor

5

10

120

V⁺= 5V TO 30V

V

= 5V, 0V

T

= 25°C

S

A

V

^–= 0V

T

= 125°C

A

100

4

3

2

1

0

I

= 10mA

SINK

T

= 25°C

A

1.0

V

= 5V, 0V

V

= ±15V

S

80

60

S

T

= –55°C

I

= 5mA

= 1mA

A

SINK

0.1

40

20

0

I

= 100µA

= 10µA

SINK

I

= 0

SINK

0.01

–50 –25

0

25

50

75 100 125

0.01

0.1

1

10

100

1k

10k

100k

1M

LOAD RESISTOR (kΩ)

FREQUENCY (Hz)

TEMPERATURE (°C)

LT1006 • G18

LT1006 • G17

LT1006 • G19

1006fa

7

LT1006

U W

TYPICAL PERFOR A CE CHARACTERISTICS

Power Supply Rejection Ratio

vs Frequency

Voltage Gain vs Frequency

Gain, Phase vs Frequency

140

120

100

80

120

100

80

T

C

= 25°C

= 10pF

T

V

C

= 25°C

A

= 0V

L

20

10

100

120

CM

= 10pF

L

PHASE

POSITIVE

SUPPLY

NEGATIVE

SUPPLY

±15V

140

160

±15V

GAIN

60

V

= 5V, 0V

V = ±15V

S

60

S

40

5V, 0V

0

180

200

40

20

0

20

0

–10

V

= ±15V + 1Vp-p SINE WAVE

= 25°C

S

A

T

–20

100

1k 10k 100k 1M 10M

0.01 0.1

1

10

0.1

0.3

1

3

10

1k

FREQUENCY (Hz)

100k 1M

0.1

1

10 100

10k

FREQUENCY (MHz)

FREQUENCY (Hz)

LT1006 • G20

LT1006 • G21

LT1006 • G22

Large Transient Response,

V_S= 5V, 0V

Large-Signal Transient Response,

V_S= 5V, 0V

Large-Signal Transient Response,

V_S= ±15V

4V

2V

0V

4V

2V

0V

5V/DIV

10µs/DIV

A_V= 1

1006 G23

10µs/DIV

1006 G24

50µs/DIV

1006 G25

A_V= 1

R_L= 4.7k TO 5V

R_L= 4.7k TO GROUND

INPUT = 0V TO 3.8V

Small-Signal Transient Response,

V_S= 5V, 0V

Small-Signal Transient Response,

V_CC= ±2.5V to ±15V

100mV

20mV/DIV

0V

20µs/DIV

1006 G26

2µs/DIV

1006 G27

A_V= 1

_L= 10pF

R_L= 600Ω TO GND

INPUT = 0V TO 100mV PULSE

A_V= 1

C_L= 10pF

C

1006fa

8

LT1006

W U U

APPLICATIO S I FOR ATIO

U

The LT1006 is fully specified for single supply operation,

(i.e., when the negative supply is 0V). Input common

mode range includes ground; the output swings within a

few millivolts of ground. Single supply operation, how-

ever, can create special difficulties, both at the input and

at the output. The LT1006 has specific circuitry which

addresses these problems.

Q4) and phase reversal occurs at the output. This can

cause lock-up in servo systems. Due to a unique phase

reversal protection circuitry (Q21, Q22, Q27, Q28), the

LT1006’s output does not reverse, as illustrated below,

even when the inputs are at –1.5V.

At the output, the aforementioned single supply designs

either cannot swing to within 600mV of ground (OP-20)

or cannot sink more than a few microamperes while

swinging to ground (LM124, LM158). The LT1006’s

all-NPN output stage maintains its low output resistance

and high gain characteristics until the output is saturated.

At the input, the driving signal can fall below 0V—

inadvertently or on a transient basis. If the input is more

than a few hundred millivolts below ground, two distinct

problems can occur on previous single supply designs,

such as the LM124, LM158, OP-20, OP-21, OP-220,

OP-221, OP-420:

In dual supply operations, the output stage is crossover

distortion free.

a)Whentheinputismorethanadiodedropbelowground,

unlimited current will flow from the substrate (V^–termi-

nal) to the input. This can destroy the unit. On the LT1006,

the400Ωresistors,inserieswiththeinput(seeSchematic

Diagram), protect the devices even when the input is 5V

below ground.

Since the output cannot go exactly to ground, but can only

approach ground to within a few millivolts, care should be

exercised to ensure that the output is not saturated. For

example, a 1mV input signal will cause the amplifier to set

up in its linear region in the gain 100 configuration shown

below, but is not enough to make the amplifier function

properly in the voltage follower mode.

b) When the input is more than 400mV below ground

(at 25°C), the input stage saturates (transistors Q3 and

Voltage Follower with Input Exceeding the Negative Common Mode Range (V_S= 5V, 0V)

4V

2V

0V

4V

2V

0V

4V

2V

0V

6V_P-PINPUT, –1.5V TO 4.5V

1006 TA11a

LM324, LM358, OP-20, OP-21 1006 TA11b

EXHIBIT OUTPUT PHASE

REVERSAL

LT1006

NO PHASE REVERSAL

1006 TA11c

Gain 100 Amplifier

Voltage Follower

5V

R

99R

–

OUTPUT

SATURATED

≈ 5mV

LT1006

100mV

600Ω

LT1006

1mV

+

1mV

+

600Ω

LT1006 • TA02

LT1006 • TA03

1006fa

9

LT1006

W U U

U

APPLICATIO S I FOR ATIO

In automated production testing the output is forced to

1.4V by the test loop; offset voltage is measured with a

common mode voltage of zero and the negative supply at

zero (Pin 4). Without the test loop, these exact conditions

cannot be achieved. The test circuit shown ensures that

the output will never saturate even with worst-case offset

voltages (–250µV over the –55°C to 125°C range). The

effective common mode input is 0.3V with respect to the

negative supply. As indicated by the common mode rejec-

tion specifications the difference is only a few microvolts

between the two methods of offset voltage measurement.

Low Supply Operation

The minimum guaranteed supply voltage for proper

operation of the LT1006 is 2.7V. Typical supply current at

this voltage is 320µA; therefore, power dissipation is only

860µW.

Noise Testing

For application information on noise testing and

calculations, please see the LT1007 or LT1028 data sheet.

Supply Current Programming

Connecting an optional external resistor to Pin 8 changes

the biasing of the LT1006 in order to increase its speed or

to decrease its power consumption. If a higher slew rate is

required, connect the external resistor for Pin 8 to Pin 4

[see performance curves for Increasing Slew Rate

(R_SETto V^–)]. For lower power consumption, inject a

current into Pin 8 (which is approximately 60mV above

V^–) as shown on the Reducing Power Dissipation plot.

This can be accomplished by connecting R_SETto the

positive supply, or to save additional power, by obtaining

the injected current from a low voltage battery.

Test Circuit for Offset Voltage and

Offset Drift with Temperature

50k*

4.7V

–

V

LT1006

–0.3V

100Ω

0

+

50k*

*RESISTORS MUST HAVE LOW

THERMOELECTRIC POTENTIAL.

THIS CIRCUIT IS ALSO USED AS

THE BURN-IN CONFIGURATION,

WITH SUPPLY VOLTAGES

Comparator Applications

**

The single supply operation of the LT1006 and its ability to

swing close to ground while sinking current lends itself

to use as a precision comparator with TTL compatible

output.

INCREASED TO ± 20V

V

= 1000V

O

OS

LT1006 • TA04

Comparator Rise Response Time

to 10mV, 5mV, 2mV Overdrives

Comparator Fall Response Time

to 10mV, 5mV, 2mV Overdrives

4

2

4

OUTPUT (V)

2

OUTPUT (V)

INPUT (mV)

0

INPUT (mV)

–100

0

–100

V_S= 5V, 0V

50µs/DIV

1006 TA12a

V_S= 5V, 0V

50µs/DIV

1006 TA12b

1006fa

10

LT1006

U

TYPICAL APPLICATIO S

Platinum RTD Signal Conditioner

with Curvature Correction

Voltage Controlled Current Source

with Ground Referred Input and Output

+V V = 5.6V TO 10V

5V

3

2

INPUT

0V TO 2V

7

+

39k

6

LT1006

1µF

–

LM334

4

1.21k*

1N457

5k

400°C

0.68µF

TRIM

I_K= 100µA

43.2k**

12k*

1k**

5V

4

+V

10k*

1k

50k

5°C

TRIM

180k

1k**

7

8

7

–

8

0.02V TO 4V OUT =

2°C TO 400°C

±0.25°C

LT1006

+

11

12

4

R_P

1k @

1µF

1k**

100Ω

0°C

1.21M*

1µF

R

= ROSEMOUNT 118MF

P

14

17

13

16

** = TRW MAR-6 0.1%

* = 1% METAL FILM

V

IN

100Ω

1/2 LTC1043

I

=

OUT

0.001µF

LT1006 • TA05

OPERATES FROM A SINGLE 5V SUPPLY

LT1006 • TA06

Micropower 1MHz V/F Converter

9V

LM334

2k*

VOLTAGE

CONTROLLED

CURRENT

9V

Q1

12

Q2

TRIGGER

NC

SOURCE

100Hz

+

3.1k*

200k*

TRIM

470k

12k

10µF

Q3 REFERENCE

Q4

220k** TYP

7

+

8

Q7

47k

A1

Q8

2N3906

LT1006

1

12

1

2k

INPUT

0V TO 5V

11

–

4

74C90

120k** 20k

TYP 1MHz

TRIM

14

0.01µF

3pF

1N4148

STRAY

CAPACI-

TANCE

LT1004-2.5

LT1004-1.2

÷100

0.33µF

2µF

OUTPUT

0MHz TO 1MHz

1000pF

Q5

Q6

(POLYSTYRENE)

REFERENCE

SWITCH

= 2N3904

= 1% METAL FILM

0.12% LINEARITY

280µA QUIESCENT CURRENT

680µA AT 1MHz

CHARGE PUMP

*

** = 1% METAL FILM, SELECTED

LT1006 • TA07

= 74C14

1006fa

11

LT1006

U

TYPICAL APPLICATIO S

Micropower Thermocouple Signal Conditioner with Cold Junction Compensation

4.5V

(3AA CELLS)

R4

233k*

100k

R3

T

R1

1684*

56k

R

CATALYST

RESEARCH CORP

MODEL 2736

2.8V

7

LT1034

1.2V

+

8

0V TO 3V OUT =

0°C TO 60°C

±0.75°C

R2

186*

LT1006

1.8k*

–

4

5.76M*

TOTAL POWER CONSUMPTION ≤ 500µW

TYPE J THERMOCOUPLE

5.98k*

* = TRW MAR-6 0.1%

R

= YELLOW SPRINGS INST. CO

MODEL 44007 5k AT 25°C

T

LT1006 • TA08

Linear Thermometer

5V

10k

5%

4

1k

0°C

1/2 LTC1043

8

16.2k

3

7

+

7

6

0V TO 1.000V =

0°C TO 100.0°C ±0.25°C

LT1006

4

LT1004

1.235V

2

107k

–

51.1k

11

1µF

12

3.2k

500Ω

100°C

1µF

T1

100k

6250Ω

13

16

14

17

0.001µF

T1 = YELLOW SPRINGS #44201

ALL RESISTORS = TRW MAR-6 0.1% UNLESS NOTED

LT1006 • TA09

1006fa

12

LT1006

U

TYPICAL APPLICATIO S

±5V Precision Instrumentation Amplifier

5V

4

5V

+

3

2

8

+

7

8

1

LT1006

V

OUT

–

4

11

12

–5V

C2

1µF

C1

DIFFERENTIAL

INPUT

1µF

(EXTERNAL)

R1

R2

13

14

16

17

CMRR > 120dB AT DC

1/2 LTC1043

CMRR > 120dB AT 60Hz

DUAL SUPPLY OR SINGLE 5V

GAIN = 1 + R2/R1

0.01µF

V

≈ 150µV

OS

–5V

∆V

OS

≈ 2µV/°C

∆T

COMMON MODE INPUT VOLTAGE INCLUDES THE SUPPLIES

LT1006 • TA10

W

SCHE ATIC DIAGRA

V⁺

7

9k

Q5

1.6k

Q13

1.6k

Q16

1.6k

1k

600Ω

100Ω

Q38

Q35

Q14

Q36

Q6

Q15 Q32

Q30

Q3

Q4

V^–

J1

Q25

Q33

Q37

21pF

Q28

3.9k

Q26

2.4k

Q27

2.5pF

18Ω

Q39

Q40

Q41

Q43

+IN

3

Q22

Q21

6

Q2

Q1

28k

400Ω

OUTPUT

–IN

2

Q18

4pF

Q12

Q31

Q29

Q7

Q10

2k

Q42

Q8

Q19

Q34

Q11

Q9

8

100pF

Q23

2.7k 2.7k

5

15pF

Q24

2k

Q17

Q44

5.4k

Q20

1

TRIM

V^–

4

75pF

2k

1.3k

30Ω

84k

2.5k

LT1006 • SD01

1006fa

13

LT1006

U

PACKAGE DESCRIPTIO

H Package

8-Lead TO-5 Metal Can (.200 Inch PCD)

(Reference LTC DWG # 05-08-1320)

.335 – .370

(8.509 – 9.398)

DIA

.305 – .335

(7.747 – 8.509)

.040

(1.016)

MAX

.050

(1.270)

MAX

.165 – .185

(4.191 – 4.699)

REFERENCE

PLANE

SEATING

PLANE

GAUGE

PLANE

.500 – .750

(12.700 – 19.050)

.010 – .045*

(0.254 – 1.143)

.016 – .021**

(0.406 – 0.533)

.027 – .045

(0.686 – 1.143)

PIN 1

45°TYP

.028 – .034

(0.711 – 0.864)

.200

(5.080)

TYP

.110 – .160

(2.794 – 4.064)

INSULATING

STANDOFF

*LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE

AND THE SEATING PLANE

.016 – .024

(0.406 – 0.610)

**FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS

H8(TO-5) 0.200 PCD 0801

J8 Package

8-Lead CERDIP (Narrow .300 Inch, Hermetic)

(Reference LTC DWG # 05-08-1110)

.405

(10.287)

MAX

CORNER LEADS OPTION

(4 PLCS)

.005

(0.127)

MIN

6

5

4

8

7

.023 – .045

(0.584 – 1.143)

HALF LEAD

OPTION

.025

(0.635)

RAD TYP

.220 – .310

(5.588 – 7.874)

.045 – .068

(1.143 – 1.650)

FULL LEAD

OPTION

1

2

3

.200

(5.080)

MAX

.300 BSC

(7.62 BSC)

.015 – .060

(0.381 – 1.524)

.008 – .018

(0.203 – 0.457)

0° – 15°

.045 – .065

(1.143 – 1.651)

.125

3.175

MIN

NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE

OR TIN PLATE LEADS

.014 – .026

(0.360 – 0.660)

.100

(2.54)

BSC

J8 0801

OBSOLETE PACKAGES

1006fa

14

LT1006

U

PACKAGE DESCRIPTIO

N8 Package

8-Lead PDIP (Narrow .300 Inch)

(Reference LTC DWG # 05-08-1510)

.400*

(10.160)

MAX

8

7

6

5

4

.255 ± .015*

(6.477 ± 0.381)

1

2

3

.130 ± .005

.300 – .325

.045 – .065

(3.302 ± 0.127)

(1.143 – 1.651)

(7.620 – 8.255)

.065

(1.651)

TYP

.008 – .015

(0.203 – 0.381)

.120

.020

(0.508)

MIN

(3.048)

MIN

+.035

.325

–.015

.018 ± .003

(0.457 ± 0.076)

.100

(2.54)

BSC

+0.889

8.255

(

)

N8 1002

–0.381

NOTE:

INCHES

1. DIMENSIONS ARE

MILLIMETERS

*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.

MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)

1006fa

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

LT1006

U

PACKAGE DESCRIPTIO

S8 Package

8-Lead Plastic Small Outline (Narrow .150 Inch)

(Reference LTC DWG # 05-08-1610)

.189 – .197

(4.801 – 5.004)

.045 ±.005

NOTE 3

.050 BSC

N

7

5

8

6

N

.245

MIN

.160 ±.005

.150 – .157

(3.810 – 3.988)

NOTE 3

.228 – .244

(5.791 – 6.197)

1

2

3

N/2

4

.030 ±.005

TYP

RECOMMENDED SOLDER PAD LAYOUT

1

3

2

.010 – .020

(0.254 – 0.508)

× 45°

.053 – .069

(1.346 – 1.752)

.004 – .010

(0.101 – 0.254)

.008 – .010

(0.203 – 0.254)

0°– 8° TYP

.016 – .050

(0.406 – 1.270)

.050

(1.270)

BSC

.014 – .019

(0.355 – 0.483)

TYP

NOTE:

INCHES

1. DIMENSIONS IN

(MILLIMETERS)

2. DRAWING NOT TO SCALE

3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.

MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)

SO8 0502

1006fa

LT/TP 1102 1K REV A • PRINTED IN USA

16 ^{LinearTechnology Corporation}

1630 McCarthy Blvd., Milpitas, CA 95035-7417

■

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

 LINEAR TECHNOLOGY CORPORATION 1988


型号：	LT1006CN8#PBF
厂家：	Linear
描述：	LT1006 - Precision, Single Supply Op Amp; Package: PDIP; Pins: 8; Temperature Range: 0°C to 70°C 放大器光电二极管
文件：	总16页 (文件大小：293K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

LT1006CN8#PBF [Linear]

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