ICL7107CM44ZT

ADCs/DACs - Special Purpose Overview

The ICL7107CM44ZT is a 3.5-digit dual-slope analog-to-digital converter (ADC) manufactured by Renesas Electronics Corporation. It operates on a ±5V dual power supply and features a sampling rate of 3 sps. The device integrates seven-segment decoders, display drivers, a reference voltage source, and an internal clock circuit. Designed for surface mount installation in a 44-pin MQFP package measuring 10.0 x 10.0 x 2.02 mm, it supports an operating temperature range of 0°C to +70°C. Key electrical characteristics include a typical input bias current of 1pA, peak-to-peak noise less than 15µV, and autozero accuracy below 10µV.

ADCs/DACs - Special Purpose Feature Summary

• Directly drives instrument-size light emitting diode (LED) displays without additional active circuits
• True differential inputs and reference for enhanced measurement accuracy
• Low power dissipation typically less than 10mW
• Zero drift less than 1µV/°C with input bias current of 10pA (Max)

ADCs/DACs - Special Purpose Applications

• Digital panel meters
• Digital multimeters
• Precision weighing systems using load cells
• Strain gauge instrumentation

ADCs/DACs - Special Purpose Procurement Notes

The ICL7107CM44ZT is classified as Last Time Buy or End-of-Life. Public documentation indicates discontinuation notifications from December 2025. Verification of remaining stock availability and specific supplier lead times is required before procurement planning. RoHS compliance is confirmed with Pb-Free Plus Anneal finish.

ADCs/DACs - Special Purpose Selection Notes

Select the ICL7107CM44ZT when direct LED display drive capability is required within a 3.5-digit resolution constraint. Ensure the design accommodates a ±5V dual power supply, distinguishing it from the single-supply ICL7106 variant. Verify that the 44-pin MQFP surface-mount package fits the PCB layout constraints and thermal requirements for the 0°C to +70°C operating range.

ADCs/DACs - Special Purpose Part Context

This component belongs to the ICL710x series of high-performance, low-power A/D converters originally introduced by Intersil and later acquired by Maxim Integrated, now part of Renesas Electronics. The 'CM44' suffix denotes the commercial temperature range and 44-pin MQFP package, while the 'ZT' suffix indicates tape-and-reel packaging for automated assembly.

ADCs/DACs - Special Purpose Replacement Considerations

Public data lists the TC7107CLW (TelCom/Microchip) as a functional equivalent in a 44-pin LCC/QCCJ package. Designers must verify pinout compatibility and package dimension differences when substituting this component.