ICL7109CMH

Analog To Digital Converters (ADC) Overview

The ICL7109CMH is a monolithic 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated. It features dual-slope integration architecture with differential input and parallel interface. The device provides 3-state binary outputs, polarity indication, and over-range flags for direct microprocessor interfacing. Key electrical parameters include a sampling rate of 30 samples per second, an integral nonlinearity of +/- 1 counts, and operation at a fixed 5V supply voltage. It supports external reference voltages up to 204.8 mV and dissipates 500 mW of power.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with dual-slope conversion architecture
• Direct microprocessor interface via 3-state binary outputs
• Differential input type with UART handshake mode capability
• Low power consumption of 500 mW at 5V supply

Analog To Digital Converters (ADC) Applications

• Remote data logging systems requiring serial transmission
• Microprocessor-based measurement instruments
• Industrial process control data acquisition

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'MH' against official Analog Devices documentation to confirm package type and temperature range, as generic ICL7109 listings often specify CPL or IPL packages. Confirm RoHS compliance status and current availability through authorized distributors, as older Maxim parts may have limited stock or obsolescence notices.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 12-bit precision ADC with direct digital output is required. Ensure the design accommodates the 30 S/s update rate and external reference requirements. Verify that the system logic levels match the 3-state output characteristics and that the thermal environment supports the specified operating temperature range.

Analog To Digital Converters (ADC) Part Context

The ICL7109 belongs to the ICL7109 series of 12-bit A/D converters designed for easy integration with microprocessors and UARTs. It serves as a bridge between analog sensor signals and digital processing units, offering both parallel and serial communication modes for flexible system design.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult manufacturer cross-reference guides for potential alternatives if the ICL7109CMH is discontinued.