THS3122

THS3125

SLOS382 − SEPTEMBER 2001

LOW NOISE, HIGHSPEED, 450 mA

CURRENT FEEDBACK AMPLIFIERS

1

www.ti.com

FEATURES

− 2.9 pA/

√Hz Noninverting Current Noise

− 10.8 pA/

√Hz Inverting Current Noise

− 2.2 nV/

√Hz Voltage Noise

− 1550 V/

− 370-

µA Shutdown Supply Current

TSSOP PowerPAD Package

APPLICATIONS

DESCRIPTION

The THS3122/5 are low-noise, high-speed current

feedback amplifiers, with high output current drive. This

makes them ideal for any application that requires low

distortion over a wide frequency with heavy loads. The

THS3122/5 can drive four serially terminated video

lines while maintaining a differential gain error less than

0.03%.

The high output drive capability of the THS3122/5

enables the devices to drive 50-

Ω loads with low

distortion over a wide range of output voltages:

The THS3122/5 can operate from

±5 V to ±15 V supply

voltages while drawing as little as 7.2 mA of supply

current per channel. They offer a low power shutdown

mode, reducing the supply current to only 370

µA. The

THS3122/5 are packaged in a standard SOIC, SOIC

PowerPAD

, and TSSOP PowerPAD packages.

1

10

100

0.01

0.1

1

10

100

f − Frequency − kHz

VOLTAGE NOISE AND CURRENT NOISE

vs

FREQUENCY

In−

In+

Vn

VCC = ±5 V to ±15 V

TA = 25°C

THS3122

SOIC (D) AND

SOIC PowerPAD

(TOP VIEW)

1

2

3

4

8

7

6

5

1 OUT

1 IN−

1 IN+

2 OUT

2 IN−

2 IN+

1

2

3

4

5

6

7

14

13

12

11

10

9

8

1 OUT

1 IN−

1 IN+

N/C

GND

N/C

2 OUT

2 IN−

2 IN+

N/C

SHUTDOWN

N/C

THS3125

SOIC (D) AND

TSSOP PowerPAD

(TOP VIEW)

PowerPAD is a trademark of Texas Instruments.

Copyright

 2001, Texas Instruments Incorporated

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.