ADC08032 General Description
The ADC08031/ADC08032/ADC08034/ADC08038 are 8-bit successive approximation A/D converters with serial I/O and configurable input multiplexers with up to 8 channels. The serial I/O is configured to comply with the NSC MICROW- IRE™ serial data exchange standard for easy interface to the COPS™ family of controllers, and can easily interface with standard shift registers or microprocessors. The ADC08034 and ADC08038 provide a 2.6V band-gap derived reference. For devices offering guaranteed voltage reference performance over temperature see ADC08131, ADC08134 and ADC08138.
A track/hold function allows the analog voltage at the positive input to vary during the actual A/D conversion. The analog inputs can be configured to operate in various combinations of single-ended, differential, or pseudo-differential modes. In addition, input voltage spans as small as 1V can be accommodated.
ADC08032 Maximum Ratings
Supply Voltage (VCC) 6.5V
Voltage at Inputs and Outputs −0.3V to VCC + 0.3V
Input Current at Any Pin (Note 4) ±5mA
Package Input Current (Note 4) ±20 mA
Power Dissipation at TA = 25˚C
(Note 5) 800 mW
ESD Susceptibility (Note 6) 1500V
Soldering Information
N Package (10 sec.) 235˚C
SO Package:
Vapor Phase (60 sec.) 215˚C
Infrared (15 sec.) (Note 7) 220˚C
ADC08032 Features
Serial digital data link requires few I/O pins
Analog input track/hold function
2-, 4-, or 8-channel input multiplexer options with address logic
0V to 5V analog input range with single 5V power supply
No zero or full scale adjustment required
TTL/CMOS input/output compatible
On chip 2.6V band-gap reference
0.3" standard width 8-, 14-, or 20-pin DIP package
14-, 20-pin small-outline packages
ADC08032 Typical Application
Digitizing automotive sensors
Process control monitoring
Remote sensing in noisy environments
Instrumentation
ADC08032 Connection Diagram
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