ADS7809 Burr-Brown Corporation, ADS7809 Datasheet

ADS7809

Manufacturer Part Number

ADS7809

Description

16-Bit 10ms Serial CMOS Sampling ANALOG-to-DIGITAL CONVERTER

Manufacturer

Burr-Brown Corporation

Datasheet

1.ADS7809.pdf (10 pages)

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Download datasheet (249Kb)

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111

Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

FEATURES

1992 Burr-Brown Corporation

SIX SPECIFIED INPUT RANGES

SERIAL OUTPUT

SINGLE +5V SUPPLY OPERATION

100kHz SAMPLING RATE

86dB SINAD WITH 20kHz INPUT

DNL: 16 BITS “No Missing Codes”

PIN-COMPATIBLE WITH 12-BIT ADS7808

USES INTERNAL OR EXTERNAL

REFERENCE

100mW MAX POWER DISSIPATION

20-PIN 0.3" PLASTIC DIP AND SOIC

SIMPLE DSP INTERFACE

2 LSB INL

CAP

REF

20k

10k

ANALOG-to-DIGITAL CONVERTER

16-Bit 10 s Serial CMOS Sampling

20k

Successive Approximation Register and Control Logic

Buffer

R/C

CDAC

+2.5V Ref

Internal

PDS-1154D

DESCRIPTION

The ADS7809 is a complete 16-bit sampling analog-

to-digital using state-of-the-art CMOS structures. It

contains a 16-bit capacitor-based SAR A/D with S/H,

reference, clock, and a serial data interface. Data can

be output using the internal clock, or can be synchro-

nized to an external data clock. The ADS7809 also

provides an output synchronization pulse for ease of

use with standard DSP processors.

The ADS7809 is specified at a 100kHz sampling rate,

and guaranteed over the full temperature range. Laser-

trimmed scaling resistors provide various input ranges

including 10V and 0V to 5V, while an innovative

design operates from a single +5V supply, with power

dissipation under 100mW.

The 20-pin ADS7809 is available in a plastic 0.3" DIP

and in an SOIC, both fully specified for operation over

the industrial –40 C to +85 C range.

Comparator

Power

Down

Serial

Data

Out

Printed in U.S.A., November, 1996

Clock

ADS7809

DEMO BOARD

AVAILABLE

BUSY

Serial Data

Data Clock

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