ADC12H038CIWM/NOPB

Analog To Digital Converters (ADC) Overview

The ADC12H038CIWM/NOPB is a self-calibrating 12-bit plus sign serial I/O Analog-to-Digital Converter (ADC) featuring an 8-channel multiplexer and sample/hold function. It operates on a single +5V supply with power consumption of 33 mW maximum. The device supports differential, pseudo-differential, or single-ended inputs via its configurable MUX. Key specifications include a maximum conversion time of 5.5 μs and throughput of 8.6 μs for the H-family. It utilizes MICROWIRE-compatible serial communication and offers programmable acquisition time and variable digital output word length.

Analog To Digital Converters (ADC) Feature Summary

• Self-Calibrating: Adjusts linearity, zero, and full-scale errors to less than ±1 LSB.
• 8-Channel Multiplexer: Supports differential, pseudo-differential, or single-ended input configurations.
• Serial Interface: MICROWIRE compatible serial I/O with power down mode consuming 100 μW typical.
• High Speed: Maximum conversion time of 5.5 μs and throughput of 8.6 μs at 8 MHz clock.

Analog To Digital Converters (ADC) Applications

• Medical Instruments
• Process Control Systems
• Test Equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized Texas Instruments distributors or manufacturers. Confirm RoHS compliance status as indicated by the NOPB suffix. Check current product availability and lifecycle status, as some devices in this family may be obsolete or on lifetime buy. Ensure proper handling due to limited built-in ESD protection.

Analog To Digital Converters (ADC) Selection Notes

Select the ADC12H038 variant over the ADC12038 if higher speed is required, as the H-family supports up to 8 MHz clock frequency compared to 5 MHz for the standard family. Ensure the application requires an 8-channel multiplexer. Verify that the single +5V supply voltage aligns with system power constraints. Consider the package type (SOIC-20) for PCB layout compatibility.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADC12(H)03x family of 12-bit plus sign SAR ADCs. The 'H' designation indicates support for higher clock frequencies (up to 8 MHz) compared to the non-H variants (up to 5 MHz). The '038' suffix denotes the 8-channel multiplexer configuration. The 'CIWM' indicates a commercial temperature range (-40°C to +85°C) and SOIC-20 wide body package.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacement options within the same family include the ADC12038CIWM/NOPB, though it operates at a lower maximum clock frequency (5 MHz vs 8 MHz). Other family members like ADC12H034 offer fewer channels. Verify pinout and software compatibility when substituting.