CA3162, CA3162A
A/D Converters for 3-Digit Display
August 1997
Features
Description
2
• Dual Slope A/D Conversion
• Multiplexed BCD Display
The CA3162E and CA3162AE are I L monolithic A/D
converters that provide a 3 digit multiplexed BCD output.
They are used with the CA3161E BCD-to-Seven-Segment
Decoder/Driver and a minimum of external parts to imple-
• Capable of Reading 99mV Below Ground with Single ment a complete 3-digit display. The CA3162AE is identical
• Ultra Stable Internal Band Gap Voltage Reference
Supply
to the CA3162E except for an extended operating tempera-
ture range.
• Differential Input
The CA3161E is described in the Display Drivers section of
this data book.
• 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
• Extended Temperature Range Version Available
Ordering Information
TEMP.
PKG.
NO.
o
PART NUMBER RANGE ( C)
PACKAGE
16 Ld PDIP
16 Ld PDIP
CA3162E
0 to 70
E16.3
CA3162AE
-40 to 85
E16.3
Pinout
CA3162
(PDIP)
TOP VIEW
1
0
3
2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
2
2
BCD
OUTPUTS
BCD
OUTPUTS
2
2
NSD
MSD
LSD
V+
DIGIT
SELECT
OUTPUTS
GAIN ADJ
INTEGRATING
CAP
HOLD/
BYPASS
HIGH INPUT
LOW INPUT
ZERO ADJ
GND
ZERO ADJ
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
File Number 1080.2
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