Rainbow-electronics MAX1083 Manual de usuario descargar pdf (Pagina 1)

General Description

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

range may also be

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.

Applications

Portable Data Logging

Data Acquisition

Medical Instruments

Battery-Powered Instruments

Pen Digitizers

Process Control

Features

♦ 4-Channel Single-Ended or 2-Channel

Pseudo-Differential Inputs

♦ Internal Multiplexer and Track/Hold

♦ Single-Supply Operation

+4.5V to +5.5V (MAX1082)

+2.7V to +3.6V (MAX1083)

♦ Internal +2.5V Reference

♦ 400kHz Sampling Rate (MAX1082)

♦ Low Power: 2.5mA (400ksps)

1.3mA (REDP)

0.9mA (FASTPD)

2µA (FULLPD)

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

Serial Interface

♦ Software-Configurable Unipolar or Bipolar Inputs

♦ 16-Pin TSSOP Package

MAX1082/MAX1083

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

Serial 10-Bit ADCs with Internal Reference

________________________________________________________________ Maxim Integrated Products 1

DD1

DD2

SCLK

DIN

SSTRB

DOUT

GND

REFADJ

TOP VIEW

MAX1082

MAX1083

TSSOP

CH0

CH1

COM

CH2

CH3

SHDN

REF

19-1690 Rev 0; 5/00

PART

MAX1082ACUE

MAX1082BCUE

MAX1082AEUE -40°C to +85°C

0°C to +70°C

TEMP.

RANGE

PIN-

PACKAGE

16 TSSOP

Typical Operating Circuit appears at end of data sheet.

Pin Configuration

INL

(LSB)

±1/2

±1

±1/2

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

Ordering Information continued at end of data sheet.

Ordering Information

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.

1 2 3 4 5 6 ... 23 24

MAX1082/MAX1083 1

Indice de contenidos

Pagina 1 - MAX1082/MAX1083

General DescriptionThe MAX1082/MAX1083 10-bit analog-to-digital convert-ers (ADCs) combine a 4-channel analog-input multiplexer,high-bandwidth track/h

Pagina 2

MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference10 ________________________________________________

Pagina 3

Detailed DescriptionThe MAX1082/MAX1083 ADCs use a successive-approximation conversion technique and input T/H cir-cuitry to convert an analog signal

Pagina 4

MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference12 ________________________________________________

Pagina 5

Serial ClockThe external clock not only shifts data in and out, but italso drives the analog-to-digital conversion steps.SSTRB pulses high for one clo

Pagina 6

MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference14 ________________________________________________

Pagina 7

MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference___________________________________________________

Pagina 8

MAX1082/MAX1083mode (PD1 = PD0 = 0), with an external reference andconversion controlled at the maximum clock speed.One dummy conversion to power up t

Pagina 9

MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference___________________________________________________

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MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference18 ________________________________________________

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MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference___________________________________________________

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MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference2 _________________________________________________

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MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference20 ________________________________________________

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MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference___________________________________________________

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MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference22 ________________________________________________

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MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference___________________________________________________

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MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal ReferenceMaxim cannot assume responsibility for use of any c

Pagina 18

mAMAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference_________________________________________________

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MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference4 _________________________________________________

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MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference___________________________________________________

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MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference6 _________________________________________________

Pagina 22

MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference___________________________________________________

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MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference8 _________________________________________________

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MAX1082/MAX1083300ksps/400ksps, Single-Supply, 4-Channel,Serial 10-Bit ADCs with Internal Reference___________________________________________________

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