CA3162E Electronics Components , Integrated Circuit Chip A / D Converters for 3- Digit Display

CA3162E Electronics Components , Integrated Circuit Chip A / D Converters for 3- Digit Display

CA3162, CA3162A

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 implement a complete 3-digit display. The CA3162AE is identical to the CA3162E except for an extended operating temperature range.

The CA3161E is described in the Display Drivers section of this data book.

Absolute Maximum Ratings

DC Supply Voltage (Between Pins 7 and 14) . . . . . . . . . . . . . . . +7V

Input Voltage (Pin 10 or 11 to Ground). . . . . . . . . . . . . . . . . . . ±15V

Operating Conditions

Temperature Range

CA3162E. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0 to 75℃

CA3162AE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85℃

Thermal Information

Thermal Resistance (Typical, Note 1) θJA (℃/W)

PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 150℃

Maximum Storage Temperature Range . . . . . . . . . . -65℃ to 150℃

Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300℃

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.

NOTE:

1. θ_JA is measured with the component mounted on an evaluation PC board in free air.

Pinout

Functional Block Diagram

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