LMH6640

TFT-LCD Single, 16V Rail-to-Rail High Output

Operational Amplifier

General Description

with a rail-to-rail output drive capability of 100 mA. Employ-

ing National’s patented VIP10 process, the LMH6640 deliv-

ers a bandwidth of 190 MHz at a current consumption of only

4mA. An input common mode voltage range extending to

0.3V below the V− and to within 0.9V of V

LMH6640 a true single supply op-amp. The output voltage

range extends to within 100 mV of either supply rail providing

the user with a dynamic range that is especially desirable in

low voltage applications.

The LMH6640 offers a slew rate of 170 V/µs resulting in a full

power bandwidth of approximately 28 MHz with 5V single

supply (2 V

ensure device stability under all operating voltages and

modes. The result is a very well behaved frequency re-

sponse characteristic for any gain setting including +1, and

excellent specifications for driving video cables including

gain of 0.12% and differential phase of 0.12˚.

Features

(V

Specified)

n

Supply current (no load)

4 mA

n

Output resistance (closed loop 1 MHz)

0.35

Ω

n

−3 dB BW (A

190 MHz

n

n

Input common mode voltage

−0.3V to 15.1V

n

Output voltage swing

100 mV from rails

n

Linear output current

n

Total harmonic distortion (2 V

−64 dBc

n

Fully characterized for:

5V & 16V

n

No output phase reversal with CMVR exceeded

n

Differential gain (R

Ω)

0.12%

n

Differential phase (R

Ω)

0.12˚

Applications

n

TFT panel V

n

Active filters

n

CD/DVD ROM

n

ADC buffer amplifier

n

Portable video

n

Current sense buffer

Typical Application

20086234

Typical Application as a TFT Panel V

November 2004

© 2004 National Semiconductor Corporation

DS200862

www.national.com