CA3162E Intersil, CA3162E Datasheet

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CA3162E

Manufacturer Part Number
CA3162E
Description
IC CONVERTER A/D 3-DIGIT 16-DIP
Manufacturer
Intersil
Datasheet

Specifications of CA3162E

Rohs Status
RoHS non-compliant
Other names
CA3162

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Part Number:
CA3162E
Manufacturer:
INTERSIL
Quantity:
430
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HARRIS
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5 510
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CA3162E
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April 2002
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
Copyright © Intersil Americas Inc. 2002. All Rights Reserved
Features
• Dual Slope A/D Conversion
• Multiplexed BCD Display
• Ultra Stable Internal Band Gap Voltage Reference
• Capable of Reading 99mV Below Ground with Single
• Differential Input
• Internal Timing - No External Clock Required
• Choice of Low Speed (4Hz) or High Speed (96Hz)
• “Hold” Inhibits Conversion but Maintains Delay
• Overrange Indication
Pinout
Supply
Conversion Rate
- “EEE” for Reading Greater than +999mV, “-” for
Reading More Negative than -99mV When Used
With CA3161E
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
®
OUTPUTS
SELECT
OUTPUTS
DIGIT
BCD
ZERO ADJ
BYPASS
HOLD/
MSD
GND
NSD
LSD
2
2
1
0
1
2
3
4
5
6
7
8
CA3162 (PDIP)
TOP VIEW
1
Description
The CA3162E and CA3162AE are I
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
CA3162E
PART NUMBER
A/D Converters for 3-Digit Display
16
15
14
13
12
11
10
9
2
2
V+
GAIN ADJ
INTEGRATING
CAP
HIGH INPUT
LOW INPUT
ZERO ADJ
3
2
BCD
OUTPUTS
RANGE (
TEMP.
0 to 70
o
C)
CA3162
16 Ld PDIP
PACKAGE
2
L monolithic A/D
FN1080.3
E16.3
PKG.
NO.

CA3162E Summary of contents

Page 1

... 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. ...

Page 2

Functional Block Diagram V+ ZERO ADJ 8 9 HIGH INPUT 11 V/I CONVERTER LOW INPUT 10 REFERENCE CURRENT GENERATOR † MSD = MOST SIGNIFICANT DIGIT NSD = NEXT SIGNIFICANT DIGIT LSD = LEAST SIGNIFICANT DIGIT CA3162 V+ BCD OUTPUTS INTEGRATING ...

Page 3

... Operating Conditions Temperature Range CA3162E CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. ...

Page 4

... This capacitor should be placed as close as possible to the power and ground Pins of the CA3161E. FIGURE 2. BASIC DIGITAL READOUT SYSTEM USING THE CA3162E AND THE CA3161E CA3162 reference constant current source of opposite polarity is connected. The number of clock counts that elapse before the ...

Page 5

... CA3162E Liquid Crystal Display (LCD) Application Figure 3 shows the CA3162E in a typical LCD application. LCDs may be used in favor of LED displays in applications requiring lower power dissipation, such as battery-operated equipment, or when visibility in high-ambient-light conditions is desired. Multiplexing of LCD digits is not practical, since LCDs must be driven signal and the average voltage across each segment is zero ...

Page 6

... CA3162E Common-Cathode, LED Display Application Figure 4 shows the CA3162E connected to a CD4511B decode/driver to operate a common-cathode LED display. Unlike the CA3161E, the CD4511B remains blank for all BCD codes greater than nine. After 999mV the display blanks rather than displaying EEE, as with the CA3161E. ...

Page 7

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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