www.ti.com

APPLICATION INFORMATION

OPERATING VOLTAGE

INPUT VOLTAGE

INPUT OVERVOLTAGE PROTECTION

+ Vs

External

Input/

Output

Pin

Internal

Circuitry

THS7316

SLOS521A – MARCH 2007 – REVISED JANUARY 2008

The THS7316 is targeted for standard definition video output buffer applications. Although it can be used for

numerous other applications, the needs and requirements of the video signal is an important design parameter of

the THS7316. Built on the Silicon Germanium (SiGe) BiCom-3 process, the THS7316 incorporates many

features not typically found in integrated video parts while consuming low power.

The THS7316 has the following features:

• Single-Supply 3-V to 5-V operation with low total quiescent current of 18.3-mA at 3.3-V and 19.3-mA at 5-V.

• Input configuration accepting DC + Level shift, AC Sync-Tip Clamp.

• AC-Biasing is accomplished with the use of an external pull-up resistor to the positive power supply.

–

–

Can also be used for SDTV (480i, 576i, CVBS, S-Video), and EDTV (480p and 576p) signals if desired.

• Internal fixed gain of 2 V/V (6 dB) buffer that can drive up to 2 video lines per channel with dc coupling or

traditional ac coupling.

• Signal flow-through configuration using an 8-pin SOIC package that complies with the latest (RoHS

compatible) and Green manufacturing requirements.

The THS7316 is designed to operate from 3-V to 5-V over a –40

°C to 85°C temperature range. The impact on

performance over the entire temperature range is negligible due to the implementation of thin film resistors and

high quality – low temperature coefficient capacitors.

The power supply pins should have a 0.1-

µF to 0.01-µF capacitor placed as close as possible to these pins.

Failure to do so may result in the THS7316 outputs ringing or have an oscillation. Additionally, a large capacitor,

such as 22

µF to 100 µF, should be placed on the power supply line to minimize interference with 50/60 Hz line

frequencies.

internal fixed gain of 2 V/V (6 dB) and the internal level shift of nominally 140-mV, the output is generally the

limiting factor for the allowable linear input range. For example, with a 5-V supply, the linear input range is from

–0.3 V to 3.5 V. However, due to the gain and level shift, the linear output range limits the allowable linear input

range to be from about –0.1 V to 2.3 V.

The THS7316 is built using a high-speed complementary bipolar and CMOS process. The internal junction

breakdown voltages are low for these small geometry devices. These breakdowns are reflected in the Absolute

Maximum Ratings table. All input and output device pins are protected with internal ESD protection diodes to the

power supplies, as shown in Figure 26.

Figure 26. Internal ESD Protection

Copyright © 2007–2008, Texas Instruments Incorporated

Submit Documentation Feedback

11

Product Folder Link(s) :THS7316