April 2005

Revision 2

1/13

■

Bandwidth: 320MHz

■

Single supply operation down to 3V

■

Low input & output rail

■

Very low harmonic distortion

■

Slew rate: 780V/

µs

■

Voltage input noise: 7nV/

√Hz

■

Specified for 150

Ω and 100Ω loads

■

Internal gain of 6dB

■

Compatible with the PCB layout of a single

op-amp

■

Tested on 5V power supply

■

Data min. and max. are tested during

production

Description

The TSH340 is a single supply video buffer

featuring an internal gain of 6dB and a large

bandwidth of 320MHz for only 9.8mA of quiescent

current.

An advantage of this circuit is its input and output

negative rail feature, which is very close to GND in

single supply. This rail is tested and guaranteed

during production at 60mV maximum from GND

on a 150

Ω load. This allows a good output swing

which fits perfectly when driving a video signal on

a 75

Ω video line. Chapter 5 of this datasheet

gives technical support when using the TSH340

as a driver for video DAC output on a video line. In

particular, this chapter focuses on applying a

video signal DC shift to avoid any clamping of the

synchronization tip.

The TSH340 is available in tiny SOT23-5 and

SO8 plastic packages.

Pin Connections (top view)

Applications

■

High-end video systems

■

High Definition TV (HDTV)

■

Broadcast and graphic video

■

Multimedia products

Order Codes

1

2

3

5

4

GND

+VCC

OUT

NC

IN

SOT23-5

+Vcc

1

2

3

5

4

8

7

6

NC

OUT

GND

NC

NC

IN

SO8

NC

1

2

3

5

4

GND

+VCC

OUT

NC

IN

SOT23-5

+Vcc

1

2

3

5

4

8

7

6

NC

OUT

GND

NC

NC

IN

SO8

NC

Part Number

Temperature Range

Package

Packaging

Marking

TSH340ILT

-40°C to +85°C

SOT23-5

Tape & Reel

K306

TSH340ID

SO-8

Tube

TSH340I

TSH340IDT

Tape & Reel

TSH340I

TSH340

320MHz Single Supply Video Buffer with Low In/Out Rail