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14-Channel

Analog

Multiplexer

4

10

10

4

REF+

REF −

DATA

OUT

ADDRESS

I/O CLOCK

CS

3

EOC

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

1

2

3

4

5

6

7

8

9

11

12

18

15

17

19

16

14

13

10-Bit

Analog-to-Digital

Converter

(switched capacitors)

Sample and

Hold

Input Address

Register

Self-Test

Reference

Output

Data

Register

System Clock,

Control Logic,

and I/O

Counters

10-to-1 Data

Selector and

Driver

TYPICAL EQUIVALENT INPUTS

INPUT CIRCUIT IMPEDANCE DURING SAMPLING MODE

INPUT CIRCUIT IMPEDANCE DURING HOLD MODE

1 k

Ω TYP

(equivalent input

capacitance)

5 M

Ω TYP

A0 −A10

A0 −A10

TLC1542I,, TLC1542M,, TLC1542Q

TLC1542C, TLC1543C, TLC1543I, TLC1543Q

SLAS052G – MARCH 1992 – REVISED JANUARY 2006

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

AVAILABLE OPTIONS

PACKAGE

SMALL

SMALL OUTLINE

CHIP CARRIER

PLASTIC DIP

CHIP CARRIER

CERAMIC DIP

OUTLINE

(DW)

(FN)

(N)

(FK)

(J)

(DB)

TLC1542CDW

TLC1542CFN

TLC1542CN

0

°C to 70°C

TLC1543CDB

TLC1543CDW

TLC1543CFN

TLC1543CN

TLC1542IDW

TLC1542IFN

TLC1542IN

-40

°C to 85°C

TLC1543IDB

TLC1543IDW

TLC1543IFN

TLC1543IN

TLC1542QFN

-40

°C to 125°C

TLC1543QDB

TLC1543QDW

TLC1543QFN

-55

°C to 125°C

TLC1542MFK

TLC1542MJ

FUNCTIONAL BLOCK DIAGRAM

2

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