ADS7816

12-Bit A/D

DCLOCK

D

OUT

OPA340

+5V

V

IN

V+

2

+In

3

-In

V

REF

8

4

GND

Serial

Interface

1

0.1 F

m

0.1 F

m

7

6

5

NOTE: A/D Input = 0 to V

REF

V

= 0V to 5V for

IN

0V to 5V output.

RC network filters high-frequency noise.

500W

3300pF

CS/SHDN

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Reference

Design

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

OPA340, OPA2340, OPA4340

SBOS073C – SEPTEMBER 1997 – REVISED AUGUST 2016

OPAx340 Single-Supply, Rail-to-Rail Operational Amplifiers

MicroAmplifier™ Series

1

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 high-

speed operation make them ideal for driving sampling

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

suited 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-k

Ω 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.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

OPA340

SOT-23 (5)

3.00 mm × 3.00 mm

OPA340, OPA2340

PDIP (8)

9.81 mm × 6.35 mm

SOIC (8)

4.90 mm × 3.91 mm

OPA2340

VSSOP (8)

3.00 mm × 3.00 mm

OPA4340

SOIC (14)

8.65 mm × 3.91 mm

SSOP (16)

4.90 mm × 3.90 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

OPA340 in Noninverting Configuration Driving ADS7816