HI7106CPL

ADCs/DACs - Special Purpose Overview

The HI7106CPL is a high-performance, low-power 3 1/2 digit analog-to-digital converter (ADC) manufactured by Intersil (now Renesas). It integrates seven-segment decoders, display drivers, a reference voltage source, and an internal clock. Designed for direct interface with liquid crystal displays (LCD), it features multiplexed backplane drive capability. The device operates on a single power supply, typically consuming less than 10mW. Key electrical characteristics include guaranteed zero reading for 0V input, true polarity at zero for precise null detection, typical input current of 1pA, and noise levels below 15µV peak-to-peak.

ADCs/DACs - Special Purpose Feature Summary

• Integrated 3 1/2 digit A/D conversion with on-chip clock and reference
• Direct LCD drive capability with multiplexed backplane support
• High accuracy with auto-zero to less than 10µV and zero drift under 1µV/°C
• Low power dissipation, typically less than 10mW

ADCs/DACs - Special Purpose Applications

• Panel meters requiring high accuracy and low power consumption
• Measurement systems utilizing load cells and strain gauges
• Bridge type transducer interfaces benefiting from true differential inputs
• Digital voltmeters constructed with minimal passive components

ADCs/DACs - Special Purpose Part Context

The HI7106 belongs to the HI7106 family of 3 1/2 digit A/D converters. The 'CPL' suffix indicates a specific package variant within this series, distinct from other options like the HI7106CM44. This component represents a classic design combining high accuracy with economic implementation for panel meter applications.

ADCs/DACs - Special Purpose Replacement Considerations

Compatible alternatives include the ICL7106 series from Analog Devices/Maxim Integrated and the TC7106 series from Microchip Technology. These parts share similar functional architectures but may differ in pinout compatibility or specific electrical tolerances. Verification against the original datasheet is required before substitution.