ICL7109CPL+

Analog To Digital Converters (ADC) Overview

The ICL7109CPL+ is a monolithic 12-bit analog-to-digital converter manufactured by Analog Devices Inc./Maxim Integrated. It utilizes dual-slope integration architecture to provide high-precision conversion with a sampling rate of 30 samples per second. The device features differential input and parallel data interface, operating on a single ±5V power supply. Packaged in a 40-pin PDIP format, it supports an industrial operating temperature range from 0°C to +70°C. Key electrical specifications include a maximum power dissipation of 500 mW and a maximum supply current of 1.8 mA.

Analog To Digital Converters (ADC) Feature Summary

• Integrated 14-bit latch and 14-bit three-state output register for direct microprocessor interfacing without external latches
• Supports both direct interface mode and industry-standard UART handshake mode for remote data acquisition
• Dual-slope integrating architecture provides inherent rejection of power line frequency interference

Analog To Digital Converters (ADC) Applications

• Direct connection to microprocessor buses for digital panel meters
• Remote data recording systems requiring serial transmission via UART handshake
• High-resolution instrumentation requiring precise DC voltage measurement

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'CPL+' against official datasheets to confirm package type and temperature grade. Confirm RoHS compliance status through manufacturer documentation. Check for end-of-life notifications or discontinuation notices prior to procurement planning. Ensure compatibility with existing PCB footprints for 40-PDIP packages.

Analog To Digital Converters (ADC) Selection Notes

Select this component when 12-bit resolution and direct microprocessor connectivity are required. Consider the dual-slope architecture for applications needing strong noise immunity at low speeds. Evaluate the need for UART support if long-distance data transmission is necessary. Verify that the ±5V supply requirement aligns with system power constraints.

Analog To Digital Converters (ADC) Part Context

The ICL7109 belongs to the ICL71xx series of integrating ADCs designed for precision measurement applications. It serves as a bridge between analog sensor signals and digital processing units. The CPL+ designation indicates a plastic dual-in-line package with lead-free composition, adhering to environmental standards while maintaining the functional characteristics of the base ICL7109 model.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers for ICL7109CPL+ were not identified in the provided source material.