ADC08038

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


Application

Digitizing automotive sensors
Process control monitoring
Remote sensing in noisy environments
Instrumentation


Pinout




Specifications

Supply Voltage (V_CC)                                                                6.5V
Voltage at Inputs and Outputs                        −0.3V to V_CC + 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




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 of ADC08031/ADC08032/ADC08034/ADC08038 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.