1

®

April 2002

CA3162

A/D Converters for 3-Digit Display

Features

• Dual Slope A/D Conversion

• Multiplexed BCD Display

• Ultra Stable Internal Band Gap Voltage Reference

• Capable of Reading 99mV Below Ground with Single

Supply

• Differential Input

• Internal Timing - No External Clock Required

• Choice of Low Speed (4Hz) or High Speed (96Hz)

Conversion Rate

• “Hold” Inhibits Conversion but Maintains Delay

• Overrange Indication

- “EEE” for Reading Greater than +999mV, “-” for

Reading More Negative than -99mV When Used

With CA3161E

Description

converters that providea3digit multiplexedBCD output.

They are used with the CA3161E BCD-to-Seven-Segment

Decoder/Driver and a minimum of external parts to imple-

ment a complete 3-digit display. The CA3162AE is identical

to the CA3162E except for an extended operating tempera-

ture range.

The CA3161E is described in the Display Drivers section of

this data book.

Ordering Information

Pinout

CA3162 (PDIP)

TOP VIEW

PART NUMBER

TEMP.

PACKAGE

PKG.

NO.

CA3162E

0 to 70

16 Ld PDIP

E16.3

14

15

16

9

13

12

11

10

1

2

3

4

5

7

6

8

NSD

MSD

LSD

HOLD/

ZERO ADJ

GND

V+

GAIN ADJ

INTEGRATING

HIGH INPUT

LOW INPUT

ZERO ADJ

CAP

BYPASS

BCD

OUTPUTS

DIGIT

SELECT

OUTPUTS

BCD

OUTPUTS

FN1080.3

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143

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