ICL7107CMH+T

ADCs/DACs - Special Purpose Overview

The ICL7107CMH+T is a monolithic 3½-digit analog-to-digital converter (ADC) designed for direct LED display drive. It integrates polarity and digit drivers, segment decoders, a voltage reference, and a clock circuit. Utilizing dual-slope conversion with a zero-integrator phase, it eliminates overrange hangover and hysteresis. The device features true differential inputs and references, ensuring high accuracy with rollover error less than one count and zero reading drift under 1µV/°C. Operating on a single +5V supply, it consumes typically less than 10mW. Key electrical parameters include low noise (<15µVP-P), high input impedance, and guaranteed first-reading recovery from overrange conditions.

ADCs/DACs - Special Purpose Feature Summary

• Directly drives common anode LED displays without external circuitry
• Dual-slope conversion with zero-integrator phase to eliminate hysteresis
• True differential input and reference for ratiometric measurements
• Integrated clock and voltage reference sources

ADCs/DACs - Special Purpose Applications

• Digital panel meters
• Precision null detection
• Bridge transducer measurements
• Ratiometric resistance sensing

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific package type associated with the CMH suffix against official manufacturer documentation, as standard listings often cite PDIP or PLCC packages. Confirm RoHS compliance status indicated by the '+' suffix. Ensure the component source is authorized to guarantee performance specifications match the datasheet values.

ADCs/DACs - Special Purpose Selection Notes

Select this model for applications requiring direct LED interface and high precision in industrial environments. The ICL7107 requires a single positive supply voltage, unlike the ICL7106 which supports LCDs. Verify that the application environment stays within the 0°C to +70°C operating temperature range and that power dissipation limits are respected.

ADCs/DACs - Special Purpose Part Context

This component belongs to the Maxim Integrated ICL7106/ICL7107 family of 3½-digit A/D converters. The ICL7107 variant is specifically optimized for driving common anode LED displays, distinguishing it from the ICL7106 which targets LCD applications. The series is known for its high input impedance and ability to reject industrial interference signals through dual-slope integration.

ADCs/DACs - Special Purpose Replacement Considerations

The ICL7106 serves as a functional alternative if LCD display drive is required instead of LED. Other variants within the family, such as ICL7107CPL+, offer different packaging options like PDIP while maintaining identical electrical characteristics and functionality.