LINEAR TECHNOLOGY LT6552 Technical data

FEATURES

LT6552

3.3V Single Supply

Video Difference Amplifier

U

DESCRIPTIO

■

Differential or Single-Ended Gain Block

■

Wide Supply Range 3V to 12.6V

■

Output Swings Rail-to-Rail

■

Input Common Mode Range Includes Ground

■

600V/µs Slew Rate

■

–3dB Bandwidth = 75MHz, A

■

CMRR at 10MHz: >60dB

■

Specified on 3.3V, 5V and ±5V Supplies

■

High Output Drive: ±70mA

■

Power Shutdown to 300µA

■

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

■

Available in 8-Lead SO and

= ±2

V

Tiny 3mm x 3mm x 0.8mm DFN Packages

U

APPLICATIO S

■

Differential to Single-Ended Conversion

■

Video Line Driver

■

Automotive Displays

■

RGB Amplifiers

■

Coaxial Cable Drivers

■

Low Voltage High Speed Signal Processing

The LT®6552 is a video difference amplifier optimized for
low voltage single supply operation. This versatile ampli­fier features uncommitted high input impedance (+) and
(–) inputs and can be used in differential or single-ended
configurations. A second set of inputs gives gain adjust­ment and DC control to the differential amplifier.

On a single 3.3V supply, the input voltage range extends
from ground to 1.3V and the output swings from ground
to 2.9V while driving a 150Ω load. The LT6552 features
75MHz – 3dB bandwidth, 600V/µs slew rate, and ±70mA
output current making it ideal for driving cables directly.
The LT6552 maintains its performance for supplies from
3V to 12.6V and is fully specified at 3.3V, 5V and ±5V
supplies. The shutdown feature reduces power dissipa­tion to less than 1mW and allows multiple amplifiers to
drive the same cable.

The LT6552 is available in the 8-lead SO package as well
as a tiny, dual fine pitch leadless package (DFN). The
device is specified over the commercial and industrial
temperature ranges.

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

TYPICAL APPLICATIO

Cable Sense Amplifier for Loop Through

Connections with DC Adjust

V

IN

5V

CABLE

V

500Ω

3
2

1

DC

8

R

G

+
–

REF
FB

LT6552

7

4

500Ω

R

C

8pF

F

U

Input Referred CMRR vs Frequency

100

VS = 5V, 0V

= 0V DC

V

90

CM

80

70

75Ω

6

F

V

75Ω

6552 TA01a

OUT

60

50

40

30

20

COMMON MODE REJECTION RATIO (dB)

10

100k

1 10 100

FREQUENCY (MHz)

6552 TA01b

6552f

1

LT6552

WW

W

ABSOLUTE AXI U RATI GS

U

(Note 1)

Supply Voltage (V+ to V–) .................................... 12.6V

Input Current (Note 2) ........................................ ±10mA

Input Voltage Range ......................................... V– to V

Differential Input Voltage

+Input (Pin 3) to –Input (Pin 2)................................±V

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

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

UUW

PACKAGE/ORDER I FOR ATIO

TOP VIEW

FB

1REF

–IN

2

+IN

3

–

V

4

8-LEAD (3mm × 3mm) PLASTIC DFN

UNDERSIDE METAL CONNECTED TO V

DD PACKAGE

T

= 125°C, θJA = 160°C/W

JMAX

(PCB CONNECTION OPTIONAL)

8

+

V

7

OUT

6

SHDN

5

–

ORDER PART

NUMBER

LT6552CDD
LT6552IDD

DD PART MARKING*

LADR

Specified Temperature Range (Note 5)....–40°C to 85°C

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

+

(DD Package) ................................................... 125°C

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

S

(DD Package) ....................................–65°C to 125°C

Lead Temperature

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

ORDER PART

TOP VIEW

REF

1

–IN

2

+IN

3

–

V

4

S8 PACKAGE

8-LEAD PLASTIC SO

T

= 150°C, θJA = 100°C/W

JMAX

FB

8

+

V

7

OUT

6

SHDN

5

NUMBER

LT6552CS8
LT6552IS8

S8 PART MARKING

6552
6552I

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

3.3V ELECTRICAL CHARACTERISTICS

The ● denotes the specifications which apply over the full

operating temperature range, otherwise specifications are at TA = 25°C. VS = 3.3V, 0V. Figure 1 shows the DC test circuit,
V

= VCM = 1V, V

REF

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

OS

∆VOS/∆T Input VOS Drift ● 40 µV/°C
I

B

I

OS

= 0V, V

DIFF

Input Offset Voltage Both Inputs (Note 7) 5 20 mV

Input Bias Current Any Input ● 20 50 µA
Input Offset Current Either Input Pair ● 15 µA

= V+, unless otherwise noted. RL = RF + RG = 1k. (Note 6)

SHDN

● 25 mV

2

6552f

LT6552

3.3V ELECTRICAL CHARACTERISTICS

The ● denotes the specifications which apply over the full

operating temperature range, otherwise specifications are at TA = 25°C. VS = 3.3V, 0V. Figure 1 shows the DC test circuit,
V

= VCM = 1V, V

REF

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

e

n

i

n

R

IN

CMRR Common Mode Rejection Ratio VCM = 0V to 1.3V ● 58 83 dB

PSRR Power Supply Rejection VS = 3V to 12V ● 48 54 dB

G

E

V

OH

V

OL

SR Slew Rate V

FPBW Full-Power Bandwidth (Note 9) VO = 2V
BW Small-Signal –3dB Bandwidth AV = 2, RL = 150Ω 65 MHz
tr, t

f

t

S

I

SC

I

S

V

L

V

H

t

ON

t

OFF

DIFF

= 0V, V

= V+, unless otherwise noted. RL = RF + RG = 1k. (Note 6)

SHDN

Input Noise Voltage Density f = 10kHz 55 nV/√Hz
Input Noise Current Density f = 10kHz 0.7 pA/√Hz
Input Resistance Common Mode, VCM = 0V to 1.3V 300 kΩ

Input Range ● 0 1.3 V

Minimum Supply (Note 8) ● 3V
Gain Error VO = 0.5V to 2V, RL = 1k ● 13 %

= 150Ω ● 13 %

R

L

Swing High (V

Swing Low (V

= 0.4V), V

DIFF

= 1k ● 3.1 3.2 V

R

L

R

= 150Ω ● 2.5 2.9 V

L

= 75Ω 2 2.5 V

R

L

= –0.1V), V

DIFF

= 1k ● 850 mV

R

L

= 5mA ● 65 120 mV

I

SINK

I

= 10mA ● 40 200 mV

SINK

= 0.5V to 2.5V Measure from 1V to 2V, 350 V/µs

OUT

= 150Ω, AV = 2

R

L

P-P

(Pin 1) = 0V, AV = 10

REF

(Pin 1) = 0V, AV = 10

REF

55 MHz

Rise Time, Fall Time (Note 10) AV =50, VO = 0.5V to 2.5V, 125 175 ns

20% to 80%, R

Settling Time to 3% AV = 2, ∆V
Settling Time to 1% R

= 150Ω 30 ns

L

= 150Ω

L

= 2V, Positive Step 20 ns

OUT

Differential Gain AV = 2, RL = 150Ω, Output Black Level = 0.6V 0.4 %
Differential Phase AV = 2, RL = 150Ω, Output Black Level = 0.6V 0.15 Deg
Short-Circuit Current V

OUT

= 0V, V

= 1V 35 50 mA

DIFF

● 25 mA

Supply Current 12.5 13.5 mA

● 15 mA

Supply Current, Shutdown V

= 0.5V ● 300 750 µA

SHDN

Shutdown Pin Input Low Voltage ● 0.5 V
Shutdown Pin Input High Voltage ● 3V
Shutdown Pin Current V

Turn On-Time V
Turn Off-Time V
Shutdown Output Leakage Current V

= 0.5V ● 40 150 µA

SHDN

V

= 3V ● 310 µA

SHDN

from 0.5V to 3V 250 ns

SHDN

from 3V to 0.5V 450 ns

SHDN

= 0.5V, 0V ≤ V

SHDN

OUT

≤ V

+

● 0.25 µA

6552f

3

LT6552

5V ELECTRICAL CHARACTERISTICS

The ● denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VS = 5V, 0V; Figure 1 shows the DC test circuit,
V

= VCM = 1V, V

REF

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

OS

∆VOS/∆T Input VOS Drift ● 40 µV/°C
I

B

I

OS

e

n

i

n

R

IN

CMRR Common Mode Rejection Ratio VCM = 0V to 3V ● 58 83 dB

PSRR Power Supply Rejection VS = 3V to 12V ● 48 54 dB

G

E

V

OH

V

OL

SR Slew Rate V

FPBW Full-Power Bandwidth (Note 9) VO = 2V
BW Small-Signal –3dB Bandwidth AV = 2, RL = 150Ω 70 MHz
tr, t

f

t

S

I

SC

I

S

V

L

V

H

DIFF

= 0V, V

= V+, unless otherwise noted. RL = RF + RG = 1k. (Note 6)

SHDN

Input Offset Voltage Both Inputs (Note 7) 5 20 mV

● 25 mV

Input Bias Current Any Input ● 20 50 uA
Input Offset Current Either Input Pair ● 15 uA
Input Noise Voltage Density f = 10kHz 55 nV/√Hz
Input Noise Current Density f = 10kHz 0.7 pA/√Hz
Input Resistance Common Mode, VCM = 0V to 3V 300 kΩ

Input Range ● 03V

Minimum Supply (Note 8) ● 3V
Gain Error VO = 0.5V to 3.5V, RL = 1k ● 13 %

= 150Ω ● 13 %

R

L

Swing High (V

Swing Low (V

= 0.6V), V

DIFF

= 1k ● 4.8 4.875 V

R

L

R

= 150Ω ● 3.6 4.3 V

L

= 75Ω, 0°C ≤ TA ≤ 70°C (Only) ● 2.75 3.4 V

R

L

= –0.1V), V

DIFF

= 1k ● 850 mV

R

L

I

= 5mA ● 65 120 mV

SINK

= 10mA ● 110 200 mV

I

SINK

= 0.5V to 3.5V

OUT

Measure from 1V to 3V, R

P-P

(Pin 1) = 0V, AV = 10

REF

(Pin 1) = 0V, AV = 10

REF

= 150Ω, AV = 2 450 V/µs

L

70 MHz

Rise Time, Fall Time 5V, 0V; AV = 50, VO = 0.5V to 3.5V, 125 175 ns

20% to 80%, R

Settling Time to 3% AV = 2, ∆V
Settling Time to 1% R

= 150Ω 30 ns

L

= 1k

L

= 2V, Positive Step 20 ns

OUT

Differential Gain AV = 2, RL = 150Ω, Output Black Level = 1V 0.25 %
Differential Phase AV = 2, RL = 150Ω, Output Black Level = 1V 0.04 Deg
Short-Circuit Current V

= 0V, V

OUT

0°C ≤ T
–40°C ≤ T

= 1V 50 70 mA

DIFF

≤ 70°C ● 45 mA

A

≤ 85°C ● 35 mA

A

Supply Current 13.5 14.5 mA

● 16 mA

Supply Current Shutdown V

= 0.5V ● 400 900 µA

SHDN

Shutdown Pin Input Low Voltage ● 0.5 V
Shutdown Pin Input High Voltage ● 4.7 V
Shutdown Pin Current V

= 0.5V ● 60 200 µA

SHDN

= 4.7V ● 410 µA

V

SHDN

4

6552f

LT6552

5V ELECTRICAL CHARACTERISTICS

temperature range, otherwise specifications are at TA = 25°C. VS = 5V, 0V. Figure 1 shows the DC test circuit, V
V

DIFF

= 0V, V

= V+, unless otherwise noted. RL = RF + RG = 1k. (Note 6)

SHDN

The ● denotes the specifications which apply over the full operating

= VCM = 1V,

REF

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

t

ON

t

OFF

±5V ELECTRICAL CHARACTERISTICS

ing temperature range, otherwise specifications are at TA = 25°C. VS = ±5V. Figure 2 shows the DC test circuit, V
V

= 0V, V

DIFF

Turn-On Time V
Turn-Off Time V
Shutdown Output Leakage Current V

= V+, unless otherwise noted. RL = RF + RG = 1k. (Note 6)

SHDN

from 0.5V to 4.7V 250 ns

SHDN

from 4.7V to 0.5V 450 ns

SHDN

= 0.5V, 0V ≤ V

SHDN

+

OUT

≤ V

● 0.25 µA

The ● denotes the specifications which apply over the full operat-

= VCM = 0V,

REF

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

V

OS

Input Offset Voltage Both Inputs (Note 7) 10 25 mV

● 30 mV

∆VOS/∆T Input VOS Drift ● 50 µV/°C
I

B

I

OS

e

n

i

n

R

IN

Input Bias Current Any Input ● 25 50 µA
Input Offset Current Either Input Pair ● 15 µA
Input Noise Voltage Density f = 10kHz 55 nV/√Hz
Input Noise Current Density f = 10kHz 0.7 pA/√Hz
Input Resistance Common Mode, VCM = –5V to 3V 300 kΩ

CMRR Common Mode Rejection Ratio VCM = –5V to 3V ● 58 75 dB

Input Range ● –5 3 V

PSRR Power Supply Rejection VS = ±2V to ±6V, VCM = 0V ● 48 54 dB
G

E

SR Slew Rate VCM = 0V, V

FPBW Full-Power Bandwidth VO = 6V

Gain Error VO = –3V to 3V, RL = 1k ● 13 %

R

= 150Ω ● 13 %

L

Output Voltage Swing (V

= ± 0.6V), V

DIFF

= 1k ● ±4.8 ±4.875 V

R

L

= 150Ω ● ±3.6 ±4.3 V

R

L

R

= 75Ω, 0°C ≤ TA ≤ 70°C (Only) ● ±2.75 ±3.4 V

L

V

= –5V to 5V Measure from –2V to 2V, RL = 150Ω

O

DIFF

(Note 9) 30 MHz

P-P

(Pin 1) = 0V, AV = 10

REF

= –1.5V to +1.5V, 400 600 V/µs

BW Small-Signal –3dB Bandwidth AV = 2, RL = 150Ω 75 MHz
tr, t
t

S

f

Rise Time, Fall Time AV = 50, VO = –3V to 3V, 20% to 80% 125 175 ns
Settling Time to 3% AV = 2, ∆V

Settling Time to 1% R

= 150Ω 35 ns

L

= 6V, Positive Step 25 ns

OUT

Differential Gain AV = 2, RL = 150Ω, Output Black Level = 0V 0.2 %
Differential Phase AV = 2, RL = 150Ω, Output Black Level = 0V 0.15 Deg

I

SC

I

S

V

L

V

H

Short-Circuit Current V

Supply Current Shutdown V

= 0V, V

OUT

0°C ≤ T
–40°C ≤ T

= –4.5V ● 650 1400 µA

SHDN

= ±1V 50 70 mA

DIFF

≤ 70°C ● 45 mA

A

≤ 85°C ● 35 mA

A

Supply Current 14 16.5 mA

● 18.5 mA

Shutdown Pin Input Low Voltage ● –4.5 V
Shutdown Pin Input High Voltage ● 4.7 V

6552f

5