ICL7109CPL+2

Analog To Digital Converters (ADC) Overview

The ICL7109CPL+2 is a monolithic 12-bit analog-to-digital converter manufactured by Analog Devices Inc./Maxim Integrated. It utilizes a dual-slope integration architecture to achieve high precision with an integral nonlinearity of +/- 1 counts. The device features a single differential input channel and provides a parallel interface with 3-state binary output, facilitating direct connection to microprocessors without external latches. Operating on a fixed 5V supply, it supports a sampling rate of 30 samples per second. Packaged in a 40-pin PDIP format, the component functions within a commercial temperature range of 0°C to +70°C.

Analog To Digital Converters (ADC) Feature Summary

• Dual-slope integration architecture ensures high accuracy and effective rejection of power line frequency interference.
• Integrated 14-bit latch and 3-state output register enable seamless direct interfacing with standard microprocessor buses.
• Supports configurable UART handshake mode for serial data transmission in remote data acquisition applications.

Analog To Digital Converters (ADC) Applications

• High-precision digital panel meters
• Remote data logging systems
• Industrial process control instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix designation against official documentation, as distributor listings may vary between CPL and CPL+2 identifiers. Confirm RoHS compliance status through the manufacturer's certification documents prior to integration. Ensure the procurement source provides valid traceability for this Analog Devices component to guarantee authenticity and performance specifications.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 12-bit resolution with dual-slope noise immunity is required for static or slow-varying signals. The parallel interface suits designs where microprocessor bus timing allows direct reading via HBEN and LBEN strobes. Consider the 30 S/s sampling limit and 40-pin through-hole package constraints during PCB layout and system timing analysis.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ICL7109 series of integrating ADCs, designed to replace older discrete solutions in measurement equipment. It serves as a bridge between analog sensor outputs and digital processing units, offering a balance of precision and ease of use for embedded systems requiring reliable DC voltage measurements.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include the MAX3170CAI+. Verify pin compatibility and electrical specifications before substitution.