Low-Power, 16-Bit, Sampling CMOS

ANALOG-to-DIGITAL CONVERTER

FEATURES

q 35mW max POWER DISSIPATION

q 50

q 25

q

q DNL: 16 bits “No Missing Codes”

q 86dB min SINAD WITH 1kHz INPUT

q

q SINGLE +5V SUPPLY OPERATION

q PARALLEL AND SERIAL DATA OUTPUT

q PIN-COMPATIBLE WITH THE 12-BIT ADS7806

q USES INTERNAL OR EXTERNAL REFERENCE

q 0.3" DIP-28 AND SO-28

DESCRIPTION

The ADS7807 is a low-power, 16-bit, sampling Analog-to-

Digital (A/D) converter using state-of-the-art CMOS struc-

tures. It contains a complete 16-bit, capacitor-based, Suc-

cessive Approximation Register (SAR) A/D converter with

sample-and-hold, clock, reference, and microprocessor inter-

face with parallel and serial output drivers.

The ADS7807 can acquire and convert 16 bits to within

±1.5LSB in 25µs max while consuming only 35mW max.

Laser trimmed scaling resistors provide standard industrial

input ranges of

±10V and 0V to +5V. In addition, a 0V to +4V

range allows development of complete single-supply sys-

tems.

The ADS7807 is available in a 0.3" DIP-28 and SO-28, both

fully specified for operation over the industrial –40

°C to

+85

°C temperature range.

ADS7807

SBAS022C – NOVEMBER 1992 – REVISED FEBRUARY 2006

www.ti.com

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Copyright © 1992-2006, Texas Instruments Incorporated

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

CDAC

6k

Ω

40k

Ω

10k

Ω

BUSY

Parallel

and

Serial

Data

Out

Comparator

Buffer

20k

Ω

R1

IN

R2

IN

REF

Successive Approximation Register and Control Logic

Clock

Power

Down

BYTE

CS

R/C

40k

Ω

Internal

+2.5V Ref

Reference

Power-Down

Serial Data

Clock

Parallel Data

CAP

Serial Data

8

ADS7

807

ADS7807

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