ADC78H89CIMT

Analog To Digital Converters (ADC) Overview

The ADC78H89CIMT is a monolithic 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments. It integrates a high-speed sampling analog-to-digital converter, a track-and-hold amplifier, and a voltage reference within a single package. The device features seven single-ended analog input channels managed by an internal multiplexer. It operates with a sampling rate of 500 kSPS and supports digital supply voltages ranging from 2.7V to 5.25V. Data transfer is facilitated through a standard SPI-compatible serial interface. The component is housed in a 16-lead Thin Shrink Small Outline Package (TSSOP).

Analog To Digital Converters (ADC) Feature Summary

• Integrates a 12-bit SAR ADC with a built-in track-and-hold amplifier for accurate signal capture.
• Includes an internal multiplexer to manage seven single-ended analog input channels.
• Supports flexible digital communication via a standard SPI-compatible serial interface.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring multi-channel data acquisition.
• Portable instrumentation utilizing battery-powered operation.
• Data acquisition modules for environmental monitoring.

Analog To Digital Converters (ADC) Selection Notes

Verify that the application requires exactly seven single-ended inputs, as the device lacks differential channel support. Confirm that the system clock frequency aligns with the 500 kSPS maximum sampling rate specification. Ensure the host microcontroller supports the required SPI timing modes for reliable data retrieval.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADC78H89 family of integrated data converters. It shares architectural similarities with other SAR-based devices but is distinct due to its specific integration of a seven-channel multiplexer and fixed 12-bit resolution. The TSSOP-16 package provides a compact footprint suitable for space-constrained circuit board designs.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-for-pin replacements within the same family include the ADC78H89CIZ and ADC78H89CIMTX. Verify that alternative packages maintain compatibility with existing PCB footprints and thermal requirements.