TLV1544C, TLV1544I, TLV1548C, TLV1548I, TLV1548M

LOW-VOLTAGE 10-BIT ANALOG-TO-DIGITAL CONVERTERS

WITH SERIAL CONTROL AND 4/8 ANALOG INPUTS

SLAS139C – DECEMBER 1996 – REVISED JANUARY 1999

2

POST OFFICE BOX 655303

description (continued)

The TLV1544 has four analog input channels while the TLV1548 has eight analog input channels. The

TLV1544C and TLV1548C are characterized for operation from 0

°C to 70°C. The TLV1544I and TLV1548I are

characterized for operation over the full industrial temperature range of –40

°C to 85°C. The TLV1548M is

characterized for operation over the full military temperature range of –55

°C to 125°C.

functional block diagram

Analog

MUX

Self-Test

Reference

Input

Data

Register

Control

Logic

and

I/O

Counters

10-Bit ADC

(Switch Capacitors)

Output Data Register

10-to-1

Data Selector

Sample

and

Hold Function

CLOCK

A0–A7

REF+

REF–

DATA IN

DATA OUT

EOC

FS

CS

CSTART

INV CLK

I/O CLK

Terminals shown are for the DB package.

1–8

14

13

17

16

19

12

15

9

11

18

AVAILABLE OPTIONS

PACKAGE

TA

SMALL OUTLINE

(DB)

(D)

(PW)

(J)

(FK)

0

°C to 70°C

TLV1548CDB

TLV1544CD

TLV1544CPW

–40

°C to 85°C

TLV1548IDB

TLV1544ID

TLV1544IPW

–55

°C to 125°C

TLV1548MJ

TLV1548MFK

DISSIPATION RATING TABLE

PACKAGE

TA ≤ 25°C

DERATING FACTOR†

TA = 70°C

TA = 85°C

TA = 125°C

PACKAGE

A

POWER RATING

ABOVE TA = 25°C

A

POWER RATING

A

POWER RATING

A

POWER RATING

DB

D

785 mW

799 mW

8.7 mW/

°C

8 9 mW/

°C

393 mW

399 mW

261 mW

266 mW

—

—

D

PW

J

799 mW

604 mW

1894 mW

8.9 mW/

°C

6.7 mW/

°C

15 1 mW/

°C

399 mW

302 mW

1212 mW

266 mW

201 mW

985 mW

—

—

379 mW

J

FK

1894 mW

1375 mW

15.1 mW/

°C

11.0 mW/

°C

1212 mW

880 mW

985 mW

715 mW

379 mW

275 mW

† This is the inverse of the traditional junction-to-ambient thermal resistance (R

ΘJA). RΘJA values are derived from Texas Instruments

characterization data. Thermal resistance is not production tested and values are given for informational purposes only.