ICL7107SCPL

ADCs/DACs - Special Purpose Overview

The ICL7107SCPL is a discontinued 3 1/2 digit analog-to-digital converter (ADC) manufactured by Harris Corporation, later Intersil and Renesas. It integrates a dual-slope ADC, seven-segment decoder, LED display driver, reference voltage source, and clock oscillator within a single 40-pin PDIP package. The device operates on a single +5V supply with typical power dissipation under 10mW. Key electrical characteristics include an input bias current of 1pA, zero drift below 1µV/°C, and auto-zero capability to less than 10µV. It features true differential inputs and references, enabling direct connection to bridge sensors without additional active circuitry.

ADCs/DACs - Special Purpose Feature Summary

• Integrated 3 1/2 digit dual-slope ADC with built-in seven-segment decoder and LED display driver
• True differential input and reference for high accuracy in bridge sensor applications
• Low power consumption typically less than 10mW with single +5V supply operation
• High precision specifications including 1pA input bias current and <1µV/°C zero drift

ADCs/DACs - Special Purpose Applications

• Direct drive of instrument-size light emitting diode (LED) displays
• Digital panel meters and digital multimeters
• Measurement of load cells, strain gauges, and other bridge-type transducers
• Signal processing systems requiring low-noise analog-to-digital conversion

ADCs/DACs - Special Purpose Part Context

The ICL7107SCPL belongs to the ICL710x family of 3 1/2 digit A/D converters, where the 'I' suffix denotes the SCOPAK (PDIP) plastic package. This specific part number has been declared obsolete by the manufacturer. The component was originally produced by Harris Semiconductor, which acquired Intersil's operations; subsequent production was managed by Intersil and later Renesas Electronics. The 'Z' suffix variant indicates RoHS compliance.

ADCs/DACs - Special Purpose Replacement Considerations

The ICL7107SCPL is officially obsolete. Verified direct replacements available from Analog Devices/Maxim Integrated include the ICL7107CPL+ and ICL7137CPL+. These modern equivalents maintain pin compatibility and functional specifications while offering updated manufacturing processes and compliance with current environmental standards.