MAX1082 Maxim, MAX1082 Datasheet

MAX1082

Manufacturer Part Number

MAX1082

Description

300ksps/400ksps / Single-Supply / 4-Channel / Serial 10-Bit ADCs with Internal Reference

Manufacturer

Maxim

Datasheet

1.MAX1082.pdf (24 pages)

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The MAX1082/MAX1083 10-bit analog-to-digital convert-

ers (ADCs) combine a 4-channel analog-input multiplexer,

high-bandwidth track/hold (T/H), and serial interface with

high conversion speed and low power consumption. The

MAX1082 operates from a single +4.5V to +5.5V supply;

the MAX1083 operates from a single +2.7V to +3.6V sup-

ply. Both devices’ analog inputs are software configurable

for unipolar/bipolar and single-ended/pseudo-differential

operation.

The 4-wire serial interface connects directly to SPI™/QSPI™

and MICROWIRE™ devices without external logic. A serial

strobe output allows direct connection to TMS320-family

digital signal processors. The MAX1082/ MAX1083 use an

external serial-interface clock to perform successive-

approximation analog-to-digital conversions. The devices

feature an internal +2.5V reference and a reference-buffer

amplifier with a ±1.5% voltage-adjustment range. An

external reference with a 1V to V

used.

The MAX1082/MAX1083 provide a hard-wired SHDN pin

and four software-selectable power modes (normal opera-

tion, reduced power (REDP), fast power-down (FASTPD),

and full power-down (FULLPD)). These devices can be

programmed to shut down automatically at the end of a

conversion or to operate with reduced power. When using

the power-down modes, accessing the serial interface

automatically powers up the devices, and the quick turn-

on time allows them to be shut down between all conver-

sions.

The MAX1082/MAX1083 are available in 16-pin TSSOP

packages.

Typical Operating Circuit appears at end of data sheet.

For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

19-1690 Rev 0; 5/00

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

Portable Data Logging

Data Acquisition

Medical Instruments

Battery-Powered Instruments

Pen Digitizers

Process Control

300ksps/400ksps, Single-Supply, 4-Channel,

Serial 10-Bit ADCs with Internal Reference

________________________________________________________________ Maxim Integrated Products

General Description

Applications

range may also be

o 4-Channel Single-Ended or 2-Channel

o Internal Multiplexer and Track/Hold

o Single-Supply Operation

o Internal +2.5V Reference

o 400kHz Sampling Rate (MAX1082)

o Low Power: 2.5mA (400ksps)

o SPI/QSPI/MICROWIRE/TMS320-Compatible 4-Wire

o Software-Configurable Unipolar or Bipolar Inputs

o 16-Pin TSSOP Package

Ordering Information continued at end of data sheet.

MAX1082ACUE

MAX1082BCUE

MAX1082AEUE

Pseudo-Differential Inputs

Serial Interface

TOP VIEW

+4.5V to +5.5V (MAX1082)

+2.7V to +3.6V (MAX1083)

PART

SHDN

COM

CH0

CH1

CH2

CH3

REF

1.3mA (REDP)

0.9mA (FASTPD)

2µA (FULLPD)

DD1

-40°C to +85°C

0°C to +70°C

RANGE

TEMP.

Ordering Information

MAX1082

MAX1083

TSSOP

Pin Configuration

PIN-

PACKAGE

16 TSSOP

SCLK

DIN

SSTRB

DOUT

GND

REFADJ

DD2

Features

(LSB)

±1/2

INL

±1

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