ADC08032CIWM

Analog To Digital Converters (ADC) Overview

The ADC08032CIWM is an obsolete 8-bit successive approximation analog-to-digital converter (ADC) from Texas Instruments. It features a serial I/O interface compatible with the NSC MICROWIRE standard, requiring minimal processor pins. The device includes a configurable input multiplexer supporting two single-ended channels or one differential pair. It operates on a single 5V supply (4.5V to 6.3V) and provides a track/hold function for analog inputs. The CIWM suffix indicates a commercial temperature range of -40°C to +85°C and a 14-pin SOIC package.

Analog To Digital Converters (ADC) Feature Summary

• 8-bit SAR architecture with 10 kHz to 1 MHz clock frequency
• Configurable 2-channel multiplexer for single-ended or differential inputs
• Serial data link compatible with MICROWIRE standard
• On-chip track/hold function and TTL/CMOS compatible logic

Analog To Digital Converters (ADC) Applications

• Digitizing automotive sensors
• Process control monitoring systems
• Remote sensing in noisy environments
• Embedded diagnostics and instrumentation

Analog To Digital Converters (ADC) Procurement Notes

This component is officially classified as obsolete by Texas Instruments. Verify availability through secondary market distributors, noting that lead times may vary significantly. Confirm the specific revision level and package integrity upon receipt, as production data reflects specifications current at the time of obsolescence.

Analog To Digital Converters (ADC) Selection Notes

Select this part only if legacy compatibility with MICROWIRE interfaces is required. Ensure the application supports the 4.5V to 6.3V supply range. For new designs, consider modern equivalents with integrated references or higher channel counts, as this device lacks an internal band-gap reference unlike the ADC08034/8 variants.

Analog To Digital Converters (ADC) Part Context

The ADC08032 belongs to the ADC0803x family, which shares identical core conversion logic but differs in multiplexer configuration. Unlike the ADC08034 and ADC08038, the ADC08032 does not include an internal 2.6V band-gap reference; its VREFIN pin must be driven externally or tied to VCC for ratiometric operation.

Analog To Digital Converters (ADC) Replacement Considerations

No direct active replacements are listed in the documentation. Designers should evaluate newer TI ADCs with serial interfaces, ensuring voltage compatibility and checking for updated packaging options.