LT6207CGNTRPBF_技术文档

LT6205/LT6206/LT6207

Single/Dual/Quad

Single Supply 3V,

100MHz Video Op Amps

DESCRIPTION

The LT^®6205/LT6206/LT6207 are low cost single/dual/

quad voltage feedback ampliﬁers that feature 100MHz

gain-bandwidth product, 450V/μs slew rate and 50mA

output current. These ampliﬁers have an input range that

includes ground and an output that swings within 60mV

of either supply rail, making them well suited for single

supply operation.

FEATURES

n

450V/μs Slew Rate

n

100MHz Gain Bandwidth Product

n

Wide Supply Range 2.7V to 12.6V

Output Swings Rail-to-Rail

n

Input Common Mode Range Includes Ground

n

High Output Drive: 50mA

n

Channel Separation: 90dB at 10MHz

n

Speciﬁed on 3V, 5V and 5V Supplies

These ampliﬁers maintain their performance for supplies

from 2.7V to 12.6V and are speciﬁed at 3V, 5V and 5V.

The inputs can be driven beyond the supplies without

damage or phase reversal of the output. Isolation between

channels is high, over 90dB at 10MHz.

n

Input Offset Voltage: 1mV

n

Low Power Dissipation: 20mW per Ampliﬁer on

Single 5V

n

Operating Temperature Range: –40°C to 125°C

n

Low Proﬁle (1mm) SOT-23 (ThinSOT™) Package

TheLT6205isavailableinthe5-pinSOT-23,andtheLT6206

is available in an 8-lead MSOP package with standard op

amp pinouts. For compact layouts the quad LT6207 is

available in the 16-pin SSOP package. These devices are

speciﬁed over the commercial, industrial and automotive

temperature ranges.

APPLICATIONS

n

Video Line Driver

n

Automotive Displays

n

RGB Ampliﬁers

Coaxial Cable Drivers

n

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and

ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property

of their respective owners.

n

Low Voltage High Speed Signal Processing

TYPICAL APPLICATION

Baseband Video Splitter/Cable Driver

Output Step Response

3.3V

1μF

V

OUT

75Ω

499Ω

V

OUT1

0V

8

LT6206

75Ω

2

3

–

1

7

V

IN

+

V

IN

0V

75Ω

20ns/DIV

V

= 3.3V

S

5

6

= 0.1V TO 1.1V

+

–

IN

75Ω

f = 10MHz

620567 TA01b

V

OUT2

75Ω

4

F

z 50MHz

3dB

b 25mA

499Ω

I

S

620567 TA01a

620567fc

1

LT6205/LT6206/LT6207

ABSOLUTE MAXIMUM RATINGS ^{(Note 1)}

+

–

Speciﬁed Temperature Range (Note 4)

Total Supply Voltage (V to V )..............................12.6V

LT6205C/LT6206C/LT6207C..................... 0°C to 70°C

LT6205I/LT6206I/LT6207I .................... –40°C to 85°C

LT6205H ........................................... –40°C to 125°C

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

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

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

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

Input Voltage Range (Note 2).................................... V

S

Output Short-Circuit Duration (Note 3) ........... Indeﬁnite

Pin Current While Exceeding Supplies (Note 9) ... 25mA

Operating Temperature Range (Note 4)

LT6205C/LT6206C/LT6207C,

LT6205I/LT6206I/LT6207I .................... –40°C to 85°C

LT6205H ........................................... –40°C to 125°C

PIN CONFIGURATION

TOP VIEW

OUT A

–IN A

+IN A

1

2

3

4

5

6

7

8

16 OUT D

15 –IN D

–

+

–

+

TOP VIEW

A

B

D

C

TOP VIEW

14

13

12

11

10

9

+IN D

+

OUT A

–IN A

+IN A

1

2

3

4

8 V

OUT 1

–

5 V

+

–

V

–

+

7 OUT B

6 –IN B

5 +IN B

V

2

–

+

+IN B

–IN B

OUT B

NC

+IN C

–IN C

OUT C

NC

+

–

+

–

+IN 3

4 –IN

V

MS8 PACKAGE

8-LEAD PLASTIC MSOP

S5 PACKAGE

5-LEAD PLASTIC TSOT-23

T

= 150°C, θ = 250°C/W

JMAX

JA

T

= 150°C, θ = 250°C/W

JA

JMAX

GN PACKAGE

16-LEAD NARROW PLASTIC SSOP

= 150°C, θ = 135°C/W

T

JMAX

JA

ORDER INFORMATION

LEAD FREE FINISH

LT6205CS5#PBF

LT6205IS5#PBF

LT6205HS5#PBF

LT6206CMS8#PBF

LT6206IMS8#PBF

LT6207CGN#PBF

LT6207IGN#PBF

TAPE AND REEL

PART MARKING*

LTAEM

LTH3

PACKAGE DESCRIPTION

SPECIFIED TEMPERATURE RANGE

0°C to 70°C

LT6205CS5#TRPBF

LT6205IS5#TRPBF

LT6205HS5#TRPBF

LT6206CMS8#TRPBF

LT6206IMS8#TRPBF

LT6207CGN#TRPBF

LT6207IGN#TRPBF

5-Lead Plastic TSOT-23

8-Lead Plastic MSOP

–40°C to 85°C

–40°C to 125°C

0°C to 70°C

LTH4

8-Lead Plastic MSOP

–40°C to 85°C

6207

16-Lead Narrow Plastic SSOP

0°C to 70°C

6207I

–40°C to 85°C

Consult LTC Marketing for parts speciﬁed with wider operating temperature ranges. *The temperature grade is identiﬁed by a label on the shipping container.

Consult LTC Marketing for information on non-standard lead based ﬁnish parts.

For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel speciﬁcations, go to: http://www.linear.com/tapeandreel/

620567fc

2

LT6205/LT6206/LT6207

ELECTRICAL CHARACTERISTICS ^Thel denotes speciﬁcations which apply over the speciﬁed temperature

range, otherwise speciﬁcations are at T_A= 25°C. V_S= 3V, 0V; V_S= 5V, 0V; V_CM= V_OUT= 1V, unless otherwise noted.

LT6205C/LT6206C/LT6207C

LT6205I/LT6206I/LT6207I

MIN

TYP

MAX

SYMBOL

PARAMETER

CONDITIONS

UNITS

V

Input Offset Voltage

1

3.5

5

mV

OS

l

Input Offset Voltage Match

1

3

4

mV

l

(Channel-to-Channel) (Note 5)

Input Offset Voltage Drift (Note 6)

Input Bias Current

7

10

0.6

2

15

30

3

μV/°C

μA

I

B

Input Offset Current

μA

OS

Input Noise Voltage

0.1Hz to 10Hz

f = 10kHz

μV

P-P

e

n

Input Noise Voltage Density

Input Noise Current Density

Input Resistance

9

nV/√Hz

pA/√Hz

MΩ

pF

i

f = 10kHz

4

n

+

V

= 0V to V – 2V

1

CM

Input Capacitance

2

+

l

CMRR

PSRR

Common Mode Rejection Ratio

Input Voltage Range

V

= 0V to V – 2V

78

0

90

dB

+

V – 2

V

Power Supply Rejection Ratio

V = 3V to 12V

67

75

dB

S

CM

V

= V

= 0.5V

OUT

l

Minimum Supply Voltage

Large-Signal Voltage Gain

V

= 0.5V

2.7

V

CM

l

A

V

V = 5V, V = 0.5V to 4.5V, R = 1k

30

5

20

100

20

60

V/mV

VOL

S

O

L

V = 5V, V = 1V to 3V, R = 150Ω

S

L

V = 3V, V = 0.5V to 2.5V, R = 1k

S

L

l

Output Voltage Swing Low (Note 7) No Load, Input Overdrive = 30mV

10

75

300

200

25

mV

OL

I

= 5mA

150

500

350

SINK

V = 5V, I

S

= 25mA

= 15mA

S

SINK

V = 3V, I

l

V

OH

Output Voltage Swing High (Note 7) No Load, Input Overdrive = 30mV

60

100

250

1200

500

mV

I

= 5mA

150

650

300

SOURCE

V = 5V, I

S

= 25mA

= 15mA

S

SOURCE

V = 3V, I

I

SC

Short-Circuit Current

V = 5V, Output Shorted to GND

35

20

60

mA

S

l

V = 3V, Output Shorted to GND

S

30

20

50

mA

I

Supply Current per Ampliﬁer

3.75

5

5.75

mA

S

l

GBW

SR

Gain Bandwidth Product

Slew Rate

f = 2MHz

65

100

450

MHz

V/μs

V = 5V, A = 2, R = R = 1k

S

V

F

G

V = 1V to 4V, Measured from 1.5V to 3.5V

O

Channel Separation

f = 10MHz

90

71

dB

FPBW

Full Power Bandwidth

V

OUT

= 2V (Note 8)

MHz

P-P

t

Settling Time to 3%

Settling Time to 1%

V = 5V, ΔV

S

= 2V, A = –1, R = 150Ω

15

25

ns

s

OUT

V

L

Differential Gain

Differential Phase

V = 5V, A = 2, R = 150Ω, Output Black Level = 1V

0.05

0.08

%

Deg

S

V

L

V = 5V, A = 2, R = 150Ω, Output Black Level = 1V

S

V

L

620567fc

3

LT6205/LT6206/LT6207

ELECTRICAL CHARACTERISTICS ^Thel denotes speciﬁcations which apply over the speciﬁed temperature

range, otherwise speciﬁcations are at T_A= 25°C. V_S= 5V; V_CM= V_OUT= 0V, unless otherwise noted.

LT6205C/LT6206C/LT6207C

LT6205I/LT6206I/LT6207I

MIN

TYP

MAX

SYMBOL

PARAMETER

CONDITIONS

UNITS

V

Input Offset Voltage

1

4.5

6

mV

OS

l

Input Offset Voltage Match

1

3

4

mV

l

(Channel-to-Channel) (Note 5)

Input Offset Voltage Drift (Note 6)

Input Bias Current

10

18

0.6

2

18

30

3

μV/°C

μA

I

B

Input Offset Current

μA

OS

Input Noise Voltage

0.1Hz to 10Hz

f = 10kHz

μV

P-P

e

n

Input Noise Voltage Density

Input Noise Current Density

Input Resistance

9

nV/√Hz

pA/√Hz

MΩ

pF

i

f = 10kHz

4

n

V

= –5V to 3V

1

CM

Input Capacitance

2

l

CMRR

PSRR

Common Mode Rejection Ratio

Input Voltage Range

V

= –5V to 3V

78

–5

67

50

7.5

90

dB

3

V

Power Supply Rejection Ratio

Large-Signal Voltage Gain

V = 2V to 6V

S

75

133

20

dB

A

VOL

V = –4V to 4V, R = 1k

O

V/mV

L

V = –3V to 3V, R = 150Ω

O

L

l

Output Voltage Swing

No Load, Input Overdrive = 30mV

4.88

4.75

3.8

4.92

4.85

4.35

V

I

=

5mA

OUT

25mA

I

Short-Circuit Current

Short to Ground

40

30

60

mA

SC

S

l

Supply Current per Ampliﬁer

4

5.6

6.5

mA

l

GBW

SR

Gain Bandwidth Product

Slew Rate

f = 2MHz

65

100

600

MHz

V/μs

A = –1, R = 1k

350

V

L

V = –4V to 4V, Measured from –3V to 3V

O

Channel Separation

f = 10MHz

90

24

dB

FPBW

Full Power Bandwidth

V

OUT

= 8V (Note 8)

14

MHz

P-P

t

s

Settling Time to 3%

Settling Time to 1%

ΔV

= 2V, A = –1, R = 150Ω

15

25

ns

OUT

V

L

Differential Gain

Differential Phase

A = 2, R = 150Ω, Output Black Level = 1V

0.05

0.08

%

Deg

V

L

A = 2, R = 150Ω, Output Black Level = 1V

V

L

The l denotes speciﬁcations which apply over the full speciﬁed temperature range, –40°C ≤ T_A≤ 125°C, otherwise speciﬁcations are

at T_A= 25°C. V_S= 3V, 0V; V_S= 5V, 0V; V_CM= V_OUT= 1V, unless otherwise noted.

LT6205H

SYMBOL

PARAMETER

CONDITIONS

UNITS

MIN

TYP

MAX

V

Input Offset Voltage

1

3.5

6

mV

OS

l

Input Offset Voltage Drift (Note 6)

Input Bias Current

20

45

μV/°C

μA

I

B

620567fc

4

LT6205/LT6206/LT6207

ELECTRICAL CHARACTERISTICS ^Thel denotes speciﬁcations which apply over the full speciﬁed temperature

range, –40°C ≤ T_A≤ 125°C, otherwise speciﬁcations are at T_A= 25°C. V_S= 3V, 0V; V_S= 5V, 0V; V_CM= V_OUT= 1V, unless otherwise noted.

LT6205H

SYMBOL

PARAMETER

CONDITIONS

UNITS

MIN

TYP

MAX

l

I

OS

Input Offset Current

5

μA

Input Noise Voltage

0.1Hz to 10Hz

f = 10kHz

2

9

4

1

2

μV

P-P

e

n

Input Noise Voltage Density

Input Noise Current Density

Input Resistance

nV/√Hz

pA/√Hz

MΩ

pF

i

f = 10kHz

n

+

V

= 0V to V – 2V

CM

Input Capacitance

+

l

CMRR

PSRR

Common Mode Rejection Ratio

Input Voltage Range

V

= 0V to V – 2V

72

0

dB

+

V – 2

V

Power Supply Rejection Ratio

V = 3V to 12V

62

dB

S

CM

V

= V

= 0.5V

OUT

l

Minimum Supply Voltage

Large-Signal Voltage Gain

V

= 0.5V

2.7

V

CM

l

A

VOL

V = 5V, V = 0.5V to 4.5V, R = 1k

25

3.5

15

V/mV

S

0

L

V = 5V, V = 1V to 3V, R = 150Ω

S

L

V = 3V, V = 0.5V to 2.5V, R = 1k

S

L

l

V

Output Voltage Swing Low (Note 7) No Load, Input Overdrive = 30mV

40

mV

OL

OH

I

= 5mA

200

600

400

SINK

S

V = 3V, I

S

V = 5V, I

= 25mA

= 15mA

SINK

l

V

Output Voltage Swing High (Note 7) No Load, Input Overdrive = 30mV

125

300

1400

600

mV

I

= 5mA

SOURCE

S

V = 5V, I

= 25mA

= 15mA

V = 3V, I

I

Short-Circuit Current

V = 5V, Output Shorted to GND

35

20

60

50

mA

SC

S

l

V = 3V, Output Shorted to GND

S

30

15

mA

Supply Current per Ampliﬁer

3.75

5

6.5

mA

S

l

GBW

SR

Gain Bandwidth Product

Slew Rate

f = 2MHz

50

MHz

V/μs

V = 5V, A = 2, R = R = 1k

450

S

V

F

G

V = 1V to 4V, Measured from 1.5V to 3.5V

O

Channel Separation

f = 10MHz

90

71

dB

FPBW

Full Power Bandwidth

V

OUT

= 2V (Note 8)

MHz

P-P

t

Settling Time to 3%

Settling Time to 1%

V = 5V, ΔV

S

= 2V, A = –1, R = 150Ω

15

25

ns

s

OUT

V

L

Differential Gain

Differential Phase

V = 5V, A = 2, R = 150Ω, Output Black Level = 1V

0.05

0.08

%

Deg

S

V

L

V = 5V, A = 2, R = 150Ω, Output Black Level = 1V

S

V

L

The l denotes speciﬁcations which apply over the full speciﬁed temperature range, –40°C ≤ T_A≤ 125°C, otherwise speciﬁcations are

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

LT6205H

SYMBOL

PARAMETER

CONDITIONS

UNITS

MIN

TYP

MAX

V

OS

Input Offset Voltage

1.3

4.5

7

mV

l

Input Offset Voltage Drift (Note 6)

25

μV/°C

620567fc

5

LT6205/LT6206/LT6207

ELECTRICAL CHARACTERISTICS ^Thel denotes speciﬁcations which apply over the full speciﬁed

temperature range, –40°C ≤ T_A≤ 125°C, otherwise speciﬁcations are at T_A= 25°C. V_S= 5V; V_CM= V_OUT= 0V, unless otherwise noted.

LT6205H

SYMBOL

PARAMETER

CONDITIONS

UNITS

μA

MIN

TYP

MAX

50

l

I

Input Bias Current

B

I

OS

Input Offset Current

5

μA

Input Noise Voltage

0.1Hz to 10Hz

f = 10kHz

2

9

4

1

2

μV

P-P

e

n

Input Noise Voltage Density

Input Noise Current Density

Input Resistance

nV/√Hz

pA/√Hz

MΩ

pF

i

f = 10kHz

n

V

= –5V to 3V

CM

Input Capacitance

l

CMRR

PSRR

Common Mode Rejection Ratio

Input Voltage Range

72

–5

62

40

5

dB

CM

3

V

Power Supply Rejection Ratio

Large-Signal Voltage Gain

V = 2V to 6V

S

dB

A

V = –4V to 4V, R = 1k

O

V/mV

VOL

L

V = –3V to 3V, R = 150Ω

O

L

l

Output Voltage Swing

No Load, Input Overdrive = 30mV

4.85

4.65

3.5

V

I

=

5mA

OUT

25mA

I

Short-Circuit Current

Short to Ground

40

20

60

4

mA

SC

l

Supply Current per Ampliﬁer

5.6

7.5

mA

S

l

GBW

SR

Gain Bandwidth Product

Slew Rate

f = 2MHz

50

MHz

V/μs

A = –1, R = 1k

350

600

V

L

V = –4V to 4V, Measured from –3V to 3V

O

Channel Separation

f = 10MHz

90

24

dB

FPBW

Full Power Bandwidth

V

OUT

= 8V (Note 8)

14

MHz

P-P

t

s

Settling Time to 3%

Settling Time to 1%

ΔV

= 2V, A = –1, R = 150Ω

15

25

ns

OUT

V

L

Differential Gain

Differential Phase

A = 2, R = 150Ω, Output Black Level = 1V

0.05

0.08

%

Deg

V

L

A = 2, R = 150Ω, Output Black Level = 1V

V

L

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 5: Matching parameters are the difference between the two ampliﬁers

A and D and between B and C of the LT6207; between the two ampliﬁers of

the LT6206.

Note 6: This parameter is not 100% tested.

Note 2: The inputs are protected by back-to-back diodes. If the differential

input voltage exceeds 1.4V, the input current should be limited to less than

10mA.

Note 3: A heat sink may be required to keep the junction temperature

below absolute maximum. This depends on the power supply voltage and

how many ampliﬁers are shorted.

Note 4: The LT6205C/LT6206C/LT6207C are guaranteed to meet speciﬁed

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

expected to meet speciﬁed performance from –40°C to 85°C but are not

tested or QA sampled at these temperatures. The LT6205I/LT6206I/LT6207I

are guaranteed to meet speciﬁed performance from –40°C to 85°C. The

LT6205H is guaranteed to meet speciﬁed performance from –40°C to 125°C.

Note 7: Output voltage swings are measured between the output and

power supply rails.

Note 8: Full power bandwidth is calculated from the slew rate

measurement: FPBW = SR/2πV

.

PEAK

Note 9: There are reverse biased ESD diodes on all inputs and outputs.

If these pins are forced beyond either supply, unlimited current will ﬂow

through these diodes. If the current is transient in nature and limited to

less than 25mA, no damage to the device will occur.

620567fc

6

LT6205/LT6206/LT6207

TYPICAL PERFORMANCE CHARACTERISTICS

Supply Current per Ampliﬁer

V_OSDistribution

vs Supply Voltage

Minimum Supply Voltage

40

35

30

25

20

15

10

5

4

3

2

1

0

100

V

= 5V, 0V

CM

S

= 1V

T

= 125°C

0

A

–100

T

= 25°C

A

T

= –55°C

A

T

= –55°C

–200

–300

–400

–500

–600

A

T

=125°C

A

T

= 25°C

A

0

–3

–2

–1

0

1

2

3

0

1

2

3

4

5

6

7

8

9

10 11 12

1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

TOTAL SUPPLY VOLTAGE (V)

INPUT OFFSET VOLTAGE (mV)

TOTAL SUPPLY VOLTAGE (V)

620567 G01

620567 G02

620567 G03

Change in Offset Voltage vs Input

Common Mode Voltage

Input Bias Current vs Input

Common Mode Voltage

Input Bias Current vs Temperature

1000

800

600

400

200

0

–4

–5

–2

–3

V

= 5V, 0V

V

= 5V, 0V

CM

V

= 5V, 0V

S

= 1V

–4

–6

–5

–7

–6

T

= 125°C

A

–8

–7

–8

–9

T

= 25°C

T

= 25°C

A

–9

A

–10

–11

–12

–10

–11

–12

T

=125°C

A

T

= –55°C

2

A

T

= –55°C

4

A

0

1

2

3

5

–50 –25

0

25

50

75 100 125

0

1

3

4

5

INPUT COMMON MODE VOLTAGE (V)

TEMPERATURE (°C)

INPUT COMMON MODE VOLTAGE (V)

620567 G04

620567 G06

620567 G05

Output Saturation Voltage

vs Load Current (Output Low)

Output Saturation Voltage

vs Load Current (Output High)

Short-Circuit Current

vs Temperature

10

1

10

1

75

70

65

60

55

50

45

40

35

V

= 5V, 0V

= 30mV

V

= 5V, 0V

= 30mV

S

OD

S

OD

SINKING

T

= 125°C

A

SOURCING

T

= 125°C

A

V

= 5V, 0V

CM

S

= 1V

SINKING

T

= 25°C

A

T

= 25°C

T

A

SOURCING

0.1

0.01

0.1

0.01

= –55°C

T

= –55°C

A

V

= 3V, 0V

CM

S

= 1V

–50 –25

0

25

50

75 100 125

0.01

0.1

1

10

100

0.01

0.1

1

10

100

TEMPERATURE (°C)

LOAD CURRENT (mA)

620567 G08

620567 G07

620567 G09

620567fc

7

LT6205/LT6206/LT6207

TYPICAL PERFORMANCE CHARACTERISTICS

Short-Circuit Current

vs Temperature

Open-Loop Gain

500

400

500

400

90

80

70

60

50

40

3O

V

T

= p5V

V

T

= 5V, 0V

= 1V

V

= p5V

S

A

S

CM

A

S

= 25°C

300

SINKING

200

100

R

= 1k

R

= 1k

L

SOURCING

0

–100

–200

–300

–400

–500

–100

–200

–300

–400

–500

R

= 150Ω

R

1

= 150Ω

L

–5 –4 –3 –2 –1

0

2

3

4

5

0

0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

OUTPUT VOLTAGE (V)

–50 –25

0

25

50

75 100 125

OUTPUT VOLTAGE (V)

TEMPERATURE (°C)

620567 G12

620567 G11

620567 G10

Input Noise Voltage Density

vs Frequency

Input Noise Current Density

vs Frequency

Warm Up Drift vs Time (LT6206)

120

100

80

60

40

20

0

16

14

12

10

8

30

25

20

15

10

5

T

= 25°C

V

T

= 5V, 0V

= 1V

V

T

= 5V, 0V

= 1V

A

S

CM

A

S

CM

A

= 25°C

V

= 5V

S

V

= 5V, 0V

S

6

4

2

0

10 20 30 40 50 60 70 80 90 100

TIME AFTER POWER-UP (s)

100

1k

10k

100k

100

1k

10k

100k

FREQUENCY (Hz)

620567 G15

620567 G14

620567 G13

Gain Bandwidth and Phase

Margin vs Supply Voltage

0.1Hz to 10Hz Noise Voltage

Gain and Phase vs Frequency

70

60

50

40

30

20

10

0

140

120

100

80

50

45

40

35

V

T

= 5V, 0V

= 1V

T

= 25°C

A

S

CM

A

PHASE

R

= R = 1k

F G

= 25°C

C

= 5pF

L

PHASE MARGIN

V

= 3V, 0V

S

V

= p5V

S

60

110

105

100

95

40

GAIN BANDWIDTH

20

V

= 3V, 0V

S

0

T

= 25°C

= 1k

= 5pF

A

L

GAIN

R

V

S

= p5V

–10

-20

C

–20

-40

100k

1M

10M

FREQUENCY (Hz)

100M 500M

0

2

4

6

8

10

12

TIME (2 SEC/DIV)

TOTAL SUPPLY VOLTAGE (V)

620567 G16

620567 G17

620567 G18

620567fc

8

LT6205/LT6206/LT6207

TYPICAL PERFORMANCE CHARACTERISTICS

Gain Bandwidth and Phase

Margin vs Temperature

Slew Rate vs Temperature

Slew Rate vs Closed-Loop Gain

750

700

650

600

550

500

450

400

350

750

55

50

45

40

35

A

V

= –1

V

= p5V

R

C

= 1k

= 5pF

S

O

L

V

= p5V

R

= R = 1k

= –4V to 4V

= 1k

S

G

L

F

700

650

600

550

500

450

400

RISING V = p5V

= 1k

R

S

T

= 25°C

A

PHASE MARGIN

FALLING V = p5V

S

RISING

V

= 3V, 0V

S

RISING V = 5V, 0V

S

V

= p5V

120

110

100

90

S

FALLING

V

= 3V, 0V

S

FALLING V = 5V, 0V

S

GAIN BANDWIDTH

80

–50 –25

0

25

50

75 100 125

2

3

4

5

–50 –25

0

25

50

75 100 125

TEMPERATURE (°C)

GAIN (A )

V

TEMPERATURE (°C)

620567 G20

620567 G21

620567 G19

Power Supply Rejection Ratio

vs Frequency

Closed-Loop Gain vs Frequency

Output Impedance vs Frequency

1000

100

10

15

12

9

90

80

70

60

50

40

30

20

10

0

T

C

A

= 25°C

= 5pF

= +1

V

T

= 5V, 0V

= 25°C

V

T

= 5V, 0V

= 25°C

A

L

V

S

A

S

A

V

= p5V

CM

S

= 0V

6

A

= 10

V

–PSRR

+PSRR

3

A

= 1

V

A

= 2

V

0

–3

–6

–9

–12

–15

V

= 3V

CM

S

= 1V

1

0.1

100k

1M

10M

100M 500M

100k

1M

10M

FREQUENCY (Hz)

100M 500M

10k

100k

1M

FREQUENCY (Hz)

10M

100M

FREQUENCY (Hz)

620567 G22

620567 G24

620567 G23

Common Mode Rejection Ratio

vs Frequency

Series Output Resistor

vs Capacitive Load

Channel Separation vs Frequency

100

90

80

70

60

50

40

30

20

10

0

120

110

100

90

40

35

30

25

20

15

10

5

V

= p5V

V

A

T

= 5V, 0V

= 1

= 25°C

V

= p5V

= 25°C

S

V

A

S

A

LT6206 CH A-B

T

LT6207 CH A-D, CH B-C

R

= 10Ω, R = d

L

S

T

= 25°C

A

80

R

= 20Ω, R = d

L

S

70

60

R

= R = 50Ω

S

L

50

40

0

10k

100k

1M

10M

100M

1G

1M

10M

100M

10

100

1000

FREQUENCY (Hz)

CAPACITIVE LOAD (pF)

FREQUENCY (Hz)

620567 G25

620567 G26

620567 G27

620567fc

9

LT6205/LT6206/LT6207

TYPICAL PERFORMANCE CHARACTERISTICS

Series Output Resistor

vs Capacitive Load

Maximum Undistorted Output

Signal vs Frequency

Distortion vs Frequency

40

35

30

25

20

15

10

5

10

9

8

7

6

5

4

3

2

1

0

–30

–40

–50

–60

–70

–80

–90

–100

V

A

T

= 5V, 0V

= 2

= 25°C

S

V

A

V

= +1

= 2V

V

O

A

= –1

P-P

V

R

= 10Ω, R = d

L

S

V

= 5V, 0V

S

A

= 2

V

R

= 1k, 2ND

L

R

= 150Ω, 3RD

L

R

= 20Ω, R = d

L

S

R

= 150Ω, 2ND

L

R

L

= R = 50Ω

S

V

T

= p5V

= 25°C

S

A

R

= 1k, 3RD

L

HD , HD < –30dBc

2

3

0

10

100

1000

0.1

1

10

100

0.01

0.1

1

10

CAPACITIVE LOAD (pF)

FREQUENCY (MHz)

620567 G30

620567 G31

620567 G28

Distortion vs Frequency

–30

–40

–50

–60

–70

–80

–90

–100

–30

–40

–50

–60

–70

–80

–90

–100

–30

–40

–50

–60

–70

–80

–90

–100

A

V

= +2

= 2V

A

V

= +1

= 2V

A

V

= +2

= 2V

= p5V

V

O

V

O

V

O

P-P

R

= 150Ω, 3RD

L

V

= 5V, 0V

V

= p5V

S

R

= 150Ω, 3RD

R

= 1k, 2ND

L

R

= 150Ω, 2ND

L

R

= 150Ω, 2ND

L

R

= 150Ω, 2ND

L

R

= 150Ω, 3RD

L

R

= 1k, 3RD

1

R

= 1k, 3RD

L

R

= 1k, 2ND

0.1

L

R

= 1k, 3RD

L

R

= 1k, 2ND

L

0.01

0.1

1

10

0.01

0.1

1

10

0.01

10

FREQUENCY (MHz)

620567 G32

620567 G33

620567 G34

Large Signal Response

V_S= 5V, 0V

Small Signal Response

V_S= 5V, 0V

2.5V

0V

620567 G35

620567 G36

50ns/DIV

V

A

= 5V, 0V

= 1

= 150Ω

V

A

= 5V, 0V

= 1

= 150Ω

S

V

L

S

V

L

R

620567fc

10

LT6205/LT6206/LT6207

TYPICAL PERFORMANCE CHARACTERISTICS

Large Signal Response V_S= 5V

Small Signal Response V_S= 5V

Output-Overdrive Recovery

0V

620567 G38

620567 G37

620567 G39

50ns/DIV

V

A

=

5V

100ns/DIV

V

A

=

5V

V

S

A

V

= 5V, 0V

= 2

S

V

L

S

V

L

= 1

R

= 150Ω

R

= 150Ω

APPLICATIONS INFORMATION

+

V

R2

R3

I1

I2

I3

Q13

Q9

Q10

C

M

+

–

Q2

Q7

Q8

V

Q3

Q4

Q5

Q6

+

V

R1

DESD5

R

IN

COMPLEMENTARY

DRIVE

OUT

DESD1

DESD2

150Ω

Q1

+IN

–IN

DESD6

V

GENERATOR

D1

D2

D3

D4

Q12

Q11

–

+

V

Q14

R

150Ω

IN

DESD3

DESD4

R4

R5

I4

–

V

620567 F01

–

V

Figure 1. Simpliﬁed Schematic

620567fc

11

LT6205/LT6206/LT6207

APPLICATIONS INFORMATION

Ampliﬁer Characteristics

negativesupplypin.Foroptimumperformanceallfeedback

components and bypass capacitors should be contained

in a 0.5 inch by 0.5 inch area. This helps ensure minimal

stray capacitances.

Figure 1 shows a simpliﬁed schematic of the LT6205/

LT6206/LT6207. The input stage consists of transistors

Q1 to Q8 and resistor R1. This topology allows for high

slew rates at low supply voltages. The input common

mode range extends from ground to typically 1.75V from

The parallel combination of the feedback resistor and gain

setting resistor on the inverting input can combine with

the input capacitance to form a pole which can degrade

stability. In general, use feedback resistors of 1k or less.

V , and is limited by 2 VBEs plus a saturation voltage of

CC

a current source. There are back-to-back series diodes,

D1 to D4, across the + and – inputs of each ampliﬁer to

Capacitive Load

limit the differential voltage to 1.4V. R limits the current

IN

throughthesediodesiftheinputdifferentialvoltageexceeds

1.4V. The input stage drives the degeneration resistors of

PNP and NPN current mirrors, Q9 to Q12, which convert

the differential signals into a single-ended output. The

complementary drive generator supplies current to the

output transistors that swing from rail-to-rail.

The LT6205/LT6206/LT6207 are optimized for wide band-

width video applications. They can drive a capacitive load

of 20pF in a unity-gain conﬁguration. When driving a

larger capacitive load, a resistor of 10Ω to 50Ω should

be connected between the output and the capacitive load

to avoid ringing or oscillation. The feedback should still

be taken from the output pin so that the resistor will

isolate the capacitive load and ensure stability. The Typi-

cal Performance Characteristics curves show the output

overshoot when driving a capacitive load with different

series resistors.

ThecurrentgeneratedthroughR1,dividedbythecapacitor

CM, determines the slew rate. Note that this current, and

hence the slew rate, are proportional to the magnitude

of the input step. The input step equals the output step

divided by the closed loop gain. The highest slew rates

are therefore obtained in the lowest gain conﬁgurations.

The Typical Performance Characteristics curve of Slew

Rate vs Closed-Loop Gain shows the details.

Video Signal Characteristics

Composite video is the most commonly used signal in

broadcast grade products and includes luma (or lumi-

nance,theintensityinformation),chroma(thecolorimetry

information) and sync (vertical and horizontal raster tim-

ing) elements combined into a single signal, NTSC and

PAL being the common formats. Component video for

entertainment systems include separate signal(s) for the

luma and chroma (i.e., Y/C or YPbPr) with sync generally

applied to the luma channel (Y signal). In some instances,

nativeRGBsignals(separateintensityinformationforeach

primary color: red, green, blue) will have sync included as

well. All the signal types that include sync are electrically

similar from a voltage-swing standpoint, though various

timing and bandwidth relationships exist depending on

the applicable standard.

ESD

The LT6205/LT6206/LT6207 have reverse-biased ESD

protection diodes on all inputs and outputs as shown in

Figure 1. If these pins are forced beyond either supply

unlimited current will ﬂow through these diodes. If the

current is transient, and limited to 25mA or less, no dam-

age to the device will occur.

Layout and Passive Components

With a gain bandwidth product of 100MHz and a slew rate

of 450V/μs the LT6205/LT6206/LT6207 require special

attention to board layout and supply bypassing. Use a

ground plane, short lead lengths and RF quality low ESR

supply bypass capacitors. The positive supply pin should

be bypassed with a small capacitor (typically 0.01μF to

0.1μF) within 0.25 inches of the pin. When driving heavy

loads, an additional 4.7μF electrolytic capacitor should be

used. When using split supplies, the same is true for the

The typical video waveforms that include sync (includ-

ing full composite) are speciﬁed to have nominal 1V

P-P

amplitude. The lower 0.3V is reserved for sync tips that

carry timing information, and by being at a lower potential

than all the other information, represents blacker-than-

620567fc

12

LT6205/LT6206/LT6207

APPLICATIONS INFORMATION

black intensity, thereby causing scan retrace activity to be

invisible on a CRT. The black level of the waveform is at

(or set up very slightly above) the upper limit of the sync

information. Waveform content above the black level is

intensity information, with peak brightness represented

at the maximum signal level. In the case of composite

video, the modulated color subcarrier is superimposed on

Clamped AC-Input Cable Driver

A popular method of further minimizing supply require-

ments with AC-coupling is to employ a simple clamping

scheme, as shown in Figure 2. In this circuit, the LT6205

operates from 3.3V by having the sync tips control the

charge on the coupling capacitor C1, thereby reducing

the black level input wander to ≈ 0.07V. The only minor

drawback to this circuit is the slight sync tip compression

(≈ 0.025V at input) due to the diode conduction current,

thoughthepicturecontentremainsfullﬁdelity. Thiscircuit

has nearly the design margin of its DC-coupled counter-

the waveform, but the dynamics remain inside the 1V

P-P

limit (a notable exception is the chroma ramp used for

differential-gain and differential-phase measurements,

which can reach 1.15V ).

P-P

part, at 0.31V (for this circuit, V

= 2.14 + V +V ).

MIN

OH OL

DC-Coupled Video Ampliﬁer Considerations

The clamp diode anode bias is selected to set the sync tip

Typically video ampliﬁers drive cables that are series

terminated (back-terminated) at the source and load-ter-

minated at the destination with resistances equal to the

output voltage at or slightly above V .

OL

YPbPr to RGB Component Video Converter

cable characteristic impedance, Z (usually 75Ω). This

0

The back page application uses the LT6207 quad to imple-

ment a minimum ampliﬁer count topology to transcode

consumercomponentvideointoRGB.Inthiscircuit,signals

only pass through one active stage from any input to any

output, with passive additions being performed by the

cableback-terminationresistors.Thecompromiseinusing

passive output addition is that the ampliﬁer outputs must

be twice as large as that of a conventional cable driver. The

Y-channelsectionalsohasthedemandingrequirementthat

itsingle-handedlydrivesallthreeoutputstofullbrightness

during times of white content, so a helper current source

is used to assure unclipped video when operating from

5V supplies. This circuit maps sync-on-Y to sync on all

the RGB channels, and for best results should have input

black levels at 0V nominal to prevent clipping.

conﬁguration forms a 2:1 resistor divider in the cabling

that must be accounted for in the driver ampliﬁer by

delivering 2V output into an effective 2 • Z load (e.g.,

P-P

0

150Ω). Driving the cable can require more than 13mA

while the output is approaching the saturation limits of the

ampliﬁer output. The absolute minimum supply is: V

=

MIN

2 + V +V . For example, the LT6206 dual operating on

OH

OL

3.3V as shown on the front page of this data sheet, with

exceptionally low V ≤ 0.5V and V ≤ 0.35V, provides a

OH

OL

design margin of 0.45V. The design margin must be large

enough to include supply variations and DC bias accuracy

for the DC-coupled video input.

Handling AC-Coupled Video Signals

AC-coupled video inputs are intrinsically more difﬁcult to

handle than those with DC-coupling because the average

signal voltage of the video waveform is effected by the

picturecontent,meaningthattheblacklevelattheampliﬁer

wanders with scene brightness. The wander is measured

as 0.56V for a 1V NTSC waveform changing from black

P-P

ﬁeld to white ﬁeld and vice-versa, so an additional 1.12V

allowance must be made in the ampliﬁer supply (assum-

ing gain of 2, so V

= 3.12 + V +V ). For example,

MIN

OH OL

an LT6205 operating on 5V has a conservative design

margin of 1.03V. The ampliﬁer output (for gain of 2) must

swing +1.47V to –1.65V around the DC-operating point,

so the biasing circuitry needs to be designed accordingly

for optimal ﬁdelity.

620567fc

13

LT6205/LT6206/LT6207

TYPICAL APPLICATION

3.3V

0.1μF

75Ω

1k

2.4k

VIDEO OUT

75Ω

4

3

5

LT6205

2

–

+

C1

4.7μF

1

COMPOSITE

VIDEO IN 1V

P-P

BAT54

10k

I

b 19mA

S

C2

4.7μF

470Ω

620567 TA02

Figure 2. Clamped AC-Input Video Cable Driver

620567fc

14

LT6205/LT6206/LT6207

PACKAGE DESCRIPTION

S5 Package

5-Lead Plastic TSOT-23

(Reference LTC DWG # 05-08-1635)

0.62

MAX

0.95

REF

2.90 BSC

(NOTE 4)

1.22 REF

1.50 – 1.75

(NOTE 4)

2.80 BSC

1.4 MIN

3.85 MAX 2.62 REF

PIN ONE

RECOMMENDED SOLDER PAD LAYOUT

PER IPC CALCULATOR

0.30 – 0.45 TYP

5 PLCS (NOTE 3)

0.95 BSC

0.80 – 0.90

0.20 BSC

DATUM ‘A’

0.01 – 0.10

1.00 MAX

0.30 – 0.50 REF

1.90 BSC

0.09 – 0.20

(NOTE 3)

NOTE:

S5 TSOT-23 0302

1. DIMENSIONS ARE IN MILLIMETERS

2. DRAWING NOT TO SCALE

3. DIMENSIONS ARE INCLUSIVE OF PLATING

4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR

5. MOLD FLASH SHALL NOT EXCEED 0.254mm

6. JEDEC PACKAGE REFERENCE IS MO-193

620567fc

15

LT6205/LT6206/LT6207

PACKAGE DESCRIPTION

MS8 Package

8-Lead Plastic MSOP

(Reference LTC DWG # 05-08-1660)

0.889 ± 0.127

(.035 ± .005)

5.23

(.206)

MIN

3.20 – 3.45

(.126 – .136)

3.00 ± 0.102

(.118 ± .004)

(NOTE 3)

0.52

(.0205)

REF

0.65

(.0256)

BSC

0.42 ± 0.038

(.0165 ± .0015)

TYP

8

7 6

5

RECOMMENDED SOLDER PAD LAYOUT

3.00 ± 0.102

(.118 ± .004)

(NOTE 4)

4.90 ± 0.152

(.193 ± .006)

DETAIL “A”

0.254

(.010)

0° – 6° TYP

GAUGE PLANE

1

2

3

4

0.53 ± 0.152

(.021 ± .006)

1.10

(.043)

MAX

0.86

(.034)

REF

DETAIL “A”

0.18

(.007)

SEATING

PLANE

0.22 – 0.38

(.009 – .015)

TYP

0.1016 ± 0.0508

(.004 ± .002)

0.65

(.0256)

BSC

MSOP (MS8) 0307 REV F

NOTE:

1. DIMENSIONS IN MILLIMETER/(INCH)

2. DRAWING NOT TO SCALE

3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.

MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE

4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.

INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE

5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX

GN Package

16-Lead Plastic SSOP (Narrow .150 Inch)

(Reference LTC DWG # 05-08-1641)

.189 – .196*

(4.801 – 4.978)

.045 ±.005

.009

(0.229)

REF

16 15 14 13 12 11 10 9

.254 MIN

.150 – .165

.229 – .244

.150 – .157**

(5.817 – 6.198)

(3.810 – 3.988)

.0165 ±.0015

.0250 BSC

RECOMMENDED SOLDER PAD LAYOUT

1

2

3

4

5

6

7

8

.015 ± .004

(0.38 ± 0.10)

× 45°

.0532 – .0688

(1.35 – 1.75)

.004 – .0098

(0.102 – 0.249)

.007 – .0098

(0.178 – 0.249)

0° – 8° TYP

.016 – .050

(0.406 – 1.270)

.0250

(0.635)

BSC

.008 – .012

GN16 (SSOP) 0204

(0.203 – 0.305)

TYP

NOTE:

1. CONTROLLING DIMENSION: INCHES

INCHES

2. DIMENSIONS ARE IN

(MILLIMETERS)

3. DRAWING NOT TO SCALE

*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

620567fc

16

LT6205/LT6206/LT6207

REVISION HISTORY ^{(Revision history begins at Rev C)}

REV

DATE

DESCRIPTION

PAGE NUMBER

C

3/10

C Grade Speciﬁed Temperature Range Changed in the Order Information Section

2

620567fc

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 representa-

tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.

17

LT6205/LT6206/LT6207

TYPICAL APPLICATION

YP_BP_Rto RGB Converter

5V

1μF

36Ω

CMPD6001S

FMMT3906

150Ω

R

4.7k

4

75Ω

165Ω

499Ω

1

2

16

15

499Ω

107Ω

80.6Ω

–

+

–

150Ω

B

3

5

14

+

Y

75Ω

LT6207

12

+

–

+

6

7

11

–

499Ω

365Ω

499Ω

10

150Ω

P

B

13

95.3Ω

133Ω

174Ω

G

P

75Ω

R

1μF

F

3dB

z 40MHz

R = Y + 1.4 • P

R

I

b 60mA

B = Y + 1.8 • P

G = Y – 0.34 • P – 0.71 • P

S

B

620567 TA03

BLACK LEVELS z 0V

–5V

B R

RELATED PARTS

PART NUMBER

DESCRIPTION

Low Cost Dual and Quad Video Ampliﬁers

COMMENTS

LT1253/LT1254

–3dB Bandwidth = 90MHz, Current Feedback

0.1dB Flatness to 100MHz, 80mA Output Drive

LT1395/LT1396/LT1397 Single Dual Quad 400MHz Current Feedback Ampliﬁers

LT1675

RGB Multiplexer with Current Feedback Ampliﬁers

Single/Dual, 180MHz, Rail-to-Rail Input and Output Ampliﬁers 350V/μs Slew Rate, Shutdown, Low Distortion –90dBc at 5MHz

–3dB Bandwidth = 250MHz, 100MHz Pixel Switching

LT1809/LT1810

LT6550/LT6551

3.3V Triple and Quad Video Ampliﬁers

Internal Gain of 2, 110MHz –3dB Bandwidth, Input Common

Modes to Ground

LT6552

3.3V Single Supply Video Difference Ampliﬁer

Differential or Single-Ended Gain Block, 600V/μs Slew Rate,

Input Common Modes to Ground

620567fc

LT 0310 REV C • PRINTED IN USA

LinearTechnology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

18

●

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


型号：	LT6207CGNTRPBF
厂家：	Linear
描述：	Single/Dual/Quad Single Supply 3V, 100MHz Video Op Amps 单/双/四路，单3V电源， 100MHz的视频运算放大器运算放大器
文件：	总18页 (文件大小：255K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

LT6207CGNTRPBF [Linear]

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