CA3162 Datasheet, PDF (1/7 Pages) Intersil Corporation – A/D Converters for 3-Digit Display

CA3162, CA3162A
August 1997
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
• Extended Temperature Range Version Available
Description
The CA3162E and CA3162AE are I²L 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-
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
TEMP.
PART NUMBER RANGE (^oC)
PACKAGE
CA3162E
0 to 70 16 Ld PDIP
CA3162AE
-40 to 85 16 Ld PDIP
PKG.
NO.
E16.3
E16.3
Pinout
CA3162
(PDIP)
TOP VIEW
BCD
OUTPUTS
2¹ 1
2⁰ 2
DIGIT
SELECT
OUTPUTS
NSD 3
MSD 4
LSD 5
HOLD/ ₆
BYPASS
GND 7
ZERO ADJ 8
16 2³
15 2²
BCD
OUTPUTS
14 V+
13 GAIN ADJ
12 ^INTEGRATING
CAP
11 HIGH INPUT
10 LOW INPUT
9 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
3-5
File Number 1080.2