TLC1549C, TLC1549I, TLC1549M

10-BIT ANALOG-TO-DIGITAL CONVERTERS

WITH SERIAL CONTROL

SLAS059C – DECEMBER 1992 – REVISED MARCH 1995

1

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

D 10-Bit-Resolution A/D Converter

D Inherent Sample and Hold

D Total Unadjusted Error... ±1 LSB Max

D On-Chip System Clock

D Terminal Compatible With TLC549 and

TLV1549

D CMOS Technology

description

The TLC1549C, TLC1549I, and TLC1549M

are

10-bit,

switched-capacitor,

successive-

approximation

analog-to-digital

converters.

These devices have two digital inputs and a

3-state output [chip select (CS), input-output clock

(I/O CLOCK), and data output (DATA OUT)] that

provide a three-wire interface to the serial port of

a host processor.

The sample-and-hold function is automatic. The

converter incorporated in these devices features

differential high-impedance reference inputs that

facilitate ratiometric conversion, scaling, and

isolation of analog circuitry from logic and supply

noise. A switched-capacitor design allows low-

error conversion over the full operating free-air

temperature range.

The TLC1549C is characterized for operation from 0

°C to 70°C. The TLC1549I is characterized for operation

from – 40

°C to 85°C. The TLC1549M is characterized for operation over the full military temperature range of

–55

°C to 125°C.

AVAILABLE OPTIONS

PACKAGE

TA

SMALL OUTLINE

(D)

CHIP CARRIER

(FK)

CERAMIC DIP

(JG)

PLASTIC DIP

(P)

0

°C to 70°C

TLC1549CD

—

—

TLC1549CP

–40

°C to 85°C

TLC1549ID

—

—

TLC1549IP

–55

°C to 125°C

—

TLC1549MFK

TLC1549MJG

—

Copyright

© 1995, 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.

1

2

3

4

8

7

6

5

REF +

ANALOG IN

REF –

GND

VCC

I/O CLOCK

DATA OUT

CS

D, JG, OR P PACKAGE

(TOP VIEW)

32

1 20 19

910 11 12 13

4

5

6

7

8

18

17

16

15

14

NC

I/O CLOCK

NC

DATA OUT

NC

NC

ANALOG IN

NC

REF–

NC

FK PACKAGE

(TOP VIEW)

NC – No internal connection