ADC141S626CIMM/NOPB

Analog To Digital Converters (ADC) Overview

The ADC141S626CIMM/NOPB is a 14-bit successive approximation register (SAR) analog-to-digital converter manufactured by Texas Instruments, originally part of the National Semiconductor portfolio. It supports sampling rates from 50 kSPS to 250 kSPS with a true differential input architecture. The device operates on an analog supply voltage ranging from 2.7 V to 5.5 V and features a serial interface compatible with standard SPI protocols. Key performance metrics include a signal-to-noise ratio (SNR) of 93.2 dB and a total harmonic distortion (THD) of -102 dBc at maximum sampling speeds. It is housed in a 10-lead MSOP package.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with no missing codes across the full operating temperature range
• True differential input structure providing high common-mode noise rejection
• Programmable sampling rate adjustable between 50 kSPS and 250 kSPS
• External reference voltage support ranging from 1.0 V to VA

Analog To Digital Converters (ADC) Applications

• Portable instrumentation systems requiring low power consumption
• Industrial process control data acquisition
• Battery-powered measurement devices
• Medical equipment signal conditioning

Analog To Digital Converters (ADC) Procurement Notes

Verify the manufacturer designation as Texas Instruments for this specific suffix, as National Semiconductor was acquired. Confirm the NOPB suffix indicates lead-free and RoHS compliance. Ensure the ordering part number matches the CIMM package variant (MSOP-10). Check current datasheet revisions for any updates to electrical characteristics or pin configurations before finalizing procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a single-channel, high-resolution conversion is required with minimal power draw. The differential input is critical for applications involving noisy environments or long cable runs. Verify that the external reference voltage capability aligns with system requirements, as internal references are not provided. Ensure the SPI interface timing constraints match the host microcontroller's capabilities.

Analog To Digital Converters (ADC) Part Context

This device belongs to the ADC141S626 family of micro-power A/D converters. It shares architectural similarities with other SAR converters but is distinguished by its specific 14-bit resolution and wide dynamic range specifications. The transition from National Semiconductor branding to Texas Instruments reflects corporate integration history while maintaining functional continuity.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements within the same family include the ADC141S626CIMMX/NOPB. Cross-manufacturer alternatives should be evaluated based on pin compatibility, resolution, and sampling speed. Verify that substitute components maintain the same differential input topology and SPI interface protocol to ensure circuit compatibility.