TSH340 Datasheet, PDF (1/13 Pages) STMicroelectronics – 320MHz Single Supply Video Buffer with Low In/Out Rail

TSH340
320MHz Single Supply Video Buffer with Low In/Out Rail
■ 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 150Ω 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 150Ω load. This allows a good output swing
which fits perfectly when driving a video signal on
a 75Ω 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)
OUT 1
5 +VCC
GND 2
IN 3
4 NC
SOT23-5
NC 1
NC 2
IN 3
GND 4
SO8
8 NC
7 +Vcc
6 OUT
5 NC
Applications
■ High-end video systems
■ High Definition TV (HDTV)
■ Broadcast and graphic video
■ Multimedia products
Order Codes
Part Number
TSH340ILT
TSH340ID
TSH340IDT
Temperature Range
-40°C to +85°C
Package
SOT23-5
SO-8
Packaging
Tape & Reel
Tube
Tape & Reel
Marking
K306
TSH340I
TSH340I
April 2005
Revision 2
1/13