ICL7107RCPL-3

ADCs/DACs - Special Purpose Overview

The ICL7107RCPL-3 is a high-performance, low-power 3½-digit analog-to-digital converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated. It integrates seven-segment decoders, display drivers, a reference voltage source, and an internal clock within a single 40-pin PDIP package. Designed to directly drive instrument-size light-emitting diode (LED) displays, the device features true differential inputs and references, ensuring accuracy in bridge transducer applications. Key electrical characteristics include a typical input bias current of 1pA, zero drift below 1µV/°C, and power dissipation typically under 10mW.

ADCs/DACs - Special Purpose Feature Summary

• Integrated 3½-digit ADC with on-chip clock and reference for minimal external component count
• Direct LED display driving capability with seven-segment decoding
• True differential input and reference architecture suitable for strain gauges and load cells
• Low noise performance with less than 15µV peak-to-peak noise

ADCs/DACs - Special Purpose Applications

• Precision digital panel meters
• Bridge sensor signal conditioning for load cells and strain gauges
• Industrial process control instrumentation
• Battery-powered measurement devices requiring low power consumption

ADCs/DACs - Special Purpose Part Context

The ICL7107 series belongs to a family of dual-slope integration ADCs originally developed by Intersil and later acquired by Maxim Integrated, now part of Analog Devices. The 'R' suffix in ICL7107RCPL-3 typically denotes a specific manufacturing revision or lot code variant within the PDIP-40 package line. This component represents a legacy standard for direct-drive LED indicators in analog measurement systems.

ADCs/DACs - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers include ICL7136CMH+TD and ICL7137CPL+. Designers should verify pin compatibility and ensure that any replacement maintains the required 40-pin DIP form factor and LED drive current specifications.