AD7871 View Datasheet(PDF) - Analog Devices

Part Name

Description

MFG CO.

AD7871

LC2MOS Complete 14-Bit, Sampling ADCs

Analog Devices 

AD7871/AD7872

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

General Description ......................................................................... 1

Functional Block Diagrams............................................................. 1

Product Highlights ........................................................................... 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

Timing Characteristics ................................................................ 5

Absolute Maximum Ratings............................................................ 6

ESD Caution.................................................................................. 6

Pin Configuration and Function Descriptions............................. 7

Theory of Operation ........................................................................ 9

Converter Details.......................................................................... 9

Internal Reference ........................................................................ 9

Track-And-Hold Amplifier ......................................................... 9

Analog Input ................................................................................. 9

Bipolar Offset Scale Adjustment .............................................. 10

Unipolar Operation.................................................................... 10

REVISION HISTORY

1/15—Rev. D to Rev. E

Updated Format..................................................................Universal

Changed T Version Minimum SNR from 79 dB to 77 dB and

Changed T Version Maximum INL from ±1 LSB to ±1.3 LSB... 3

Deleted ADSP-2100 and TMS32020/C25 (Throughout).......... 15

Deleted DSP56000 and ADSP-2101/ADSP-2102 (Throughout)...16

Updated Outline Dimensions ....................................................... 21

Changes to Ordering Guide .......................................................... 24

1/97—Rev. C to Rev. D

Data Sheet

Unipolar Offset And Full-Scale Adjustment .......................... 10

Timing and Control ................................................................... 11

Data Output Formats................................................................. 11

Mode 1 Interface......................................................................... 12

Mode 2 Interface......................................................................... 13

Dynamic Specifications ............................................................. 14

Microprocessor Interface .......................................................... 15

StandAlone Operation............................................................... 16

Application Information................................................................ 17

Layout Hints................................................................................ 17

Noise ............................................................................................ 17

Data Acquisition Board ............................................................. 17

Interface Connections ............................................................... 18

Power Supply Connections ....................................................... 18

Shorting Plug Options ............................................................... 18

Outline Dimensions ....................................................................... 21

Ordering Guide .......................................................................... 24

Rev. E | Page 2 of 24

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