1 Features

1• Rail-to-Rail Input

• Rail-to-Rail Output (Within 1 mV)

• MicroSize Packages

• Wide Bandwidth: 5.5 MHz

• High Slew Rate: 6 V/μs

• Low THD + Noise: 0.0007% (f = 1 kHz)

• Low Quiescent Current: 750 μA/Channel

• Single, Dual, and Quad Versions

2 Applications

• Driving A/D Converters

• PCMCIA Cards

• Data Acquisition

• Process Control

• Audio Processing

• Communications

• Active Filters

• Test Equipment

3 Description

The OPA340 series rail-to-rail CMOS operational

amplifiers are optimized for low-voltage, single-supply

operation. Rail-to-rail input and output and highspeed

operation make them ideal for driving sampling

analog-to-digital (A/D) converters. They are also wellsuited

for general purpose and audio applications as

well as providing I/V conversion at the output of

digital-to-analog (D/A) converters. Single, dual, and

quad versions have identical specifications for design

flexibility.

The OPA340 series operate on a single supply as low

as 2.5 V with an input common-mode voltage range

that extends 500 mV below ground and 500 mV

above the positive supply. Output voltage swing is to

within 1 mV of the supply rails with a 100-kΩ load.

These devices offer excellent dynamic response

BW = 5.5 MHz, SR = 6 V/μs), yet quiescent current

is only 750 A. Dual and quad designs feature

completely independent circuitry for lowest crosstalk

and freedom from interaction.

The single (OPA340) packages are the tiny 5-pin

SOT-23 surface mount, 8-pin SOIC surface mount,

and 8-pin DIP. The dual (OPA2340) comes in the

miniature 8-pin VSSOP surface mount, 8-pin SOIC

surface mount, and 8-pin PDIP packages. The quad

OPA4340) packages are the space-saving 16-pin

SSOP surface mount and 14-pin SOIC surface

mount. All are specified from –40°C to 85°C and

operate from –55°C to 125°C. A SPICE macromodel

is available for design analysis.