ADC12030CIWM/NOPB

Analog To Digital Converters (ADC) Overview

The ADC12030CIWM/NOPB is a self-calibrating, 12-bit plus sign successive approximation analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a two-channel multiplexer and an integrated sample-and-hold function. The device operates on a single +5V supply with a maximum power consumption of 33 mW. It utilizes a MICROWIRE-compatible serial I/O interface for data exchange. Key electrical specifications include a maximum conversion time of 8.8 µs, a throughput time of 14 µs, and an integral linearity error of ±1 LSB after auto-calibration. The component supports variable resolution and programmable acquisition times.

Analog To Digital Converters (ADC) Feature Summary

• Self-Calibrating Architecture: Automatically adjusts linearity, zero, and full-scale errors to less than ±1 LSB without external adjustment components.
• Dual-Channel Multiplexer: Supports differential, pseudo-differential, or single-ended input configurations via CH0 and CH1 pins.
• MICROWIRE Serial Interface: Compatible with standard serial protocols using DI, DO, SCLK, and CS pins for efficient data transfer.
• Low Power Consumption: Maximum active power dissipation is 33 mW, with typical power-down current as low as 20 µA.

Analog To Digital Converters (ADC) Applications

• Medical Instruments
• Process Control Systems
• Test Equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'CIWM' against the manufacturer's current product availability status, as older TI families may be obsolete or subject to lifetime buy restrictions. Confirm that the SOIC-16 package matches the target PCB footprint. Ensure the design accommodates separate bypassing for VA+ and VD+ pins to maintain specified accuracy levels.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a dual-channel, high-accuracy 12-bit conversion is required within a 5V system. The ADC12030 family is tested at a 5 MHz clock frequency, distinguishing it from the faster ADC12H030 family which operates at 8 MHz. Consider the 14 µs maximum throughput time and the need for an external voltage reference if higher precision than the internal calibration allows is necessary.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADC12(H)030 series, which includes variants with 2, 4, or 8 channels (e.g., ADC12032, ADC12034). The 'C' indicates a commercial temperature range (-40°C to +85°C), while 'I' typically denotes industrial range in other TI nomenclatures; however, datasheet operating ratings specify -40°C to +85°C. The 'NOPB' suffix confirms lead-free and RoHS compliance.

Analog To Digital Converters (ADC) Replacement Considerations

Direct functional replacements within the same family include the ADC12032CIWM/NOPB (4-channel) or ADC12034CIWM/NOPB (4-channel PDIP/SOIC). For higher speed requirements, the ADC12H030CIWM/NOPB offers an 8 MHz clock capability but requires verification of pinout compatibility and timing adjustments.