ADC08131

OBSOLETE ADC08131, ADC08134, ADC08138 www.ti.com SNAS066D – JUNE 1999 – REVISED APRIL 2013 ADC08131/ADC08134/ADC08138 8-Bit High-Speed Serial I/O A/D Converters with Multiplexer Options, Voltage Reference, and Track/Hold Function Check for Samples: ADC08131, ADC08134, ADC08138 FEATURES 1 23 Serial Digital Data Link Requires Few I/O Pins Analog Input Track/Hold Function 4- or 8-Channel Input Multiplexer Options with Address Logic On-Chip 2.5V Band-Gap Reference (±2% Over Temperature Ensured) No Zero or Full Scale Adjustment Required TTL/CMOS Input/Output Compatible 0V to 5V Analog Input Range with Single 5V Power Supply APPLICATIONS Digitizing Automotive Sensors Process Control/Monitoring Remote Sensing in Noisy Environments Embedded Diagnostics DESCRIPTION The ADC08131/ADC08134/ADC08138 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 MICROWIRE serial data exchange standard for easy interface to the COPS™ family of controllers, and can easily interface with standard shift registers or microprocessors. All three devices provide a 2.5V band-gap derived reference with ensured performance over temperature. 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-diffe...