ICL7106CPL+3

ADCs/DACs - Special Purpose Overview

The ICL7106CPL+ is a monolithic 3½-digit analog-to-digital converter (ADC) designed for direct interface with non-multiplexed liquid crystal displays (LCD). It integrates polarity and digit drivers, segment decoders, a voltage reference, and a clock circuit. The device utilizes dual-slope conversion to reject industrial interference signals and features true differential inputs and references. Key electrical specifications include a maximum power dissipation of 1.3333 W at +70°C, a supply current of up to 1.8 mA, and an operating temperature range from 0°C to +70°C.

ADCs/DACs - Special Purpose Feature Summary

• Direct LCD Drive: On-board active components eliminate the need for external display drive circuitry.
• Dual-Slope Conversion: Automatically rejects common-mode interference signals typical in industrial environments.
• High Accuracy: Features rollover error less than one count and zero reading drift below 1µV/°C.
• True Differential Inputs: Supports ratiometric measurements for bridge transducers and ohms.

ADCs/DACs - Special Purpose Applications

• Digital panel meters
• Voltage measurement systems
• Resistance and conductance measurement
• Temperature monitoring

ADCs/DACs - Special Purpose Procurement Notes

Verify that the specific ordering suffix matches the required package type and RoHS compliance status. Confirm the manufacturer source, as second-source devices may have tighter test specifications while maintaining identical functionality. Ensure the component meets the environmental requirements for the intended application temperature range.

ADCs/DACs - Special Purpose Selection Notes

Select the ICL7106CPL+ when a low-cost, high-impedance solution for driving LCDs is required without external logic. Compare against the ICL7107 if LED display capability is needed instead. Consider the ICL7126 for applications requiring lower power consumption, though it lacks some stability enhancements found in the standard series.

ADCs/DACs - Special Purpose Part Context

This component belongs to the Maxim Integrated ICL7106/ICL7107 family of 3½-digit A/D converters. Originally introduced by Intersil, the product line was acquired by Maxim Integrated, now part of Analog Devices Inc. The CPL designation indicates a 40-pin PDIP package suitable for through-hole mounting.

ADCs/DACs - Special Purpose Replacement Considerations

The ICL7106CPLZ is a lead-free variant of the same functional device. For lower power requirements, the ICL7126RCPL serves as a compatible alternative, though it offers reduced display stability compared to the standard ICL7106 series.