TLC548C, TLC548I, TLC549C, TLC549I

8-BIT ANALOG-TO-DIGITAL CONVERTERS

WITH SERIAL CONTROL

SLAS067C – NOVEMBER 1983 – REVISED SEPTEMBER 1996

1

POST OFFICE BOX 655303

Operation

Second

– TLC548...up to 45 500

– TLC549...up to 40 000

Sample-and-Hold Function

Applications including Battery-Operated

Portable Instrumentation

With the TLC540 and TLC545 8-Bit A/D

Converters and with the TLC1540 10-Bit

A/D Converter

description

The TLC548 and TLC549 are CMOS analog-to-digital converter (ADC) integrated circuits built around an 8-bit

switched-capacitor successive-approximation ADC. These devices are designed for serial interface with a

microprocessor or peripheral through a 3-state data output and an analog input. The TLC548 and TLC549 use

only the input/output clock (I/O CLOCK) input along with the chip select (CS) input for data control. The

maximum I/O CLOCK input frequency of the TLC548 is 2.048 MHz, and the I/O CLOCK input frequency of the

TLC549 is specified up to 1.1 MHz.

AVAILABLE OPTIONS

PACKAGE

TA

SMALL OUTLINE

(D)

PLASTIC DIP

(P)

0

°C to 70°C

TLC548CD

TLC549CD

TLC548CP

TLC549CP

–40

°C to 85°C

TLC548ID

TLC549ID

TLC548IP

TLC549IP

Copyright

© 1996, Texas Instruments Incorporated

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.

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.

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2

3

4

8

7

6

5

REF +

ANALOG IN

REF –

GND

I/O CLOCK

DATA OUT

CS

D OR P PACKAGE

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