ADC12038CIWM/NOPB

Analog To Digital Converters (ADC) Overview

The ADC12038CIWM/NOPB is a self-calibrating 12-bit plus sign successive approximation analog-to-digital converter featuring an eight-channel multiplexer and sample/hold function. It operates on a single +5V supply with a maximum power consumption of 33 mW. The device supports serial I/O compatible with MICROWIRE, offering variable resolution, conversion rate, and digital output word length. Key electrical specifications include a maximum throughput time of 14 µs for the ADC12030 family and a maximum integral linearity error of ±1 LSB after auto-calibration.

Analog To Digital Converters (ADC) Feature Summary

• Self-calibrating architecture adjusts linearity, zero, and full-scale errors to less than ±1 LSB
• Eight-channel differential or single-ended multiplexer with programmable acquisition time
• MICROWIRE-compatible serial I/O with power down mode consuming 100 µW (typ)
• Variable resolution and conversion rate with no zero or full-scale adjustment required

Analog To Digital Converters (ADC) Applications

• Medical instruments
• Process control systems
• Test equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify product availability status as some devices in this family may be obsolete or on lifetime buy. Confirm package type matches design requirements, specifically the 20-pin wide body SOIC package for the CIWM variant. Ensure external reference voltage sources meet the specified impedance and bypassing guidelines to maintain accuracy.

Analog To Digital Converters (ADC) Selection Notes

Select the ADC12038 when eight input channels are required. Choose between the ADC12030 and ADC12H030 families based on clock speed requirements; the ADC12030 family is tested at 5 MHz while the ADC12H030 family supports up to 8 MHz. Ensure the analog input range fits within the 0V to 5V unipolar or differential configurations supported by the single 5V supply.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADC12(H)03x series, which includes variants with 2, 4, or 8 channels. The ADC12038 specifically provides the eight-channel configuration. Other members of this family share similar architectural features but differ in channel count and maximum clock frequencies.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes within the same family include ADC12030, ADC12032, and ADC12034 for lower channel counts. For higher speed applications, consider the ADC12H030, ADC12H032, ADC12H034, and ADC12H038 variants.