LM8272 Dual

RRIO, High Output Current & Unlimited Cap Load Op

Amp in Miniature Package

General Description

The LM8272 is a Rail-to-Rail input and output Op Amp which

can operate with a wide supply voltage range. This device

has high output current drive, greater than Rail-to-Rail input

common mode voltage range, unlimited capacitive load drive

capability while requiring only 0.95mA/channel supply cur-

rent. It is specifically designed to handle the requirements of

flat panel TFT panel V

being suitable for other low power, and medium speed ap-

plications which require ease of use and enhanced perfor-

mance over existing devices.

Greater than Rail-to-Rail input common mode voltage range

with 50dB of Common Mode Rejection, allows high side and

low side sensing, among many applications, without having

any concerns over exceeding the range and no compromise

in accuracy. Exceptionally wide operating supply voltage

range of 2.5V to 24V alleviates any concerns over function-

ality under extreme conditions and offers flexibility of use in

multitude of applications. In addition, most device param-

eters are insensitive to power supply variations; this design

enhancement is yet another step in simplifying its usage.

The LM8272 is offered in the 8-pin MSOP package.

Features

(V

n

GBWP

15MHz

n

Wide supply voltage range

2.5V to 24V

n

Slew rate

15V/µs

n

Supply current/channel

0.95mA

n

Cap load tolerance

Unlimited

n

Output short circuit current

n

Output current (1V from rails)

n

Input common mode voltage

0.3V beyond rails

n

Input voltage noise

15nV/

n

Input current noise

1.4pA/

Applications

n

TFT-LCD flat panel V

n

A/D converter buffer

n

High side/low side sensing

n

Headphone amplifier

Connection Diagram

8-Pin MSOP

10130863

Top View

Large Signal Step Response for Various Cap. Load

10130899

Ordering Information

Package

Part Number

Package Marking

Transport Media

NSC Drawing

8-Pin MSOP

LM8272MM

A60

1k Unit Tape and Reel

MUA08A

LM8272MMX

3.5k Unit Tape and Reel

December 2002

© 2002 National Semiconductor Corporation

DS101308

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