ICL7109CMH+

Analog To Digital Converters (ADC) Overview

The ICL7109CMH+ is a monolithic 12-bit analog-to-digital converter manufactured by Analog Devices Inc./Maxim Integrated. It utilizes a dual-slope integration architecture to provide high-precision conversion with differential input capabilities. The device features a parallel data interface and operates on ±5V power supplies for both analog and digital sections. Designed for microprocessor compatibility, it includes internal latches and three-state outputs to facilitate direct bus interfacing without external logic. The component is housed in a 44-MQFP surface-mount package and supports an operating temperature range of 0°C to 70°C.

Analog To Digital Converters (ADC) Feature Summary

• Monolithic 12-bit resolution with dual-slope integration architecture for high noise immunity
• Direct microprocessor interface capability via built-in 14-bit latch and three-state binary outputs
• Supports UART handshake mode conversion for serial data transmission in remote applications
• Differential analog input configuration with external reference voltage requirement

Analog To Digital Converters (ADC) Applications

• Microprocessor-based data acquisition systems requiring direct bus interfacing
• Remote data logging applications utilizing standard UART interfaces
• Precision panel meters and industrial instrumentation
• High-resolution sensor signal conditioning circuits

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix CMH+ against official Analog Devices documentation to confirm the 44-MQFP surface-mount package variant. Ensure the source document explicitly lists this part number as active or available. Cross-reference the manufacturer designation to distinguish between Maxim Integrated legacy branding and current Analog Devices Inc. specifications before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when 12-bit resolution and microprocessor compatibility are required in a surface-mount form factor. Verify that the system design accommodates the 44-pin MQFP footprint and ±5V supply requirements. Confirm that the application benefits from the dual-slope architecture's inherent rejection of power line frequency interference compared to other ADC types.

Analog To Digital Converters (ADC) Part Context

The ICL7109 series represents a family of integrating analog-to-digital converters designed for precision measurement. The CMH+ suffix specifically denotes the quad flat pack no-lead (MQFP) surface-mount package variant, distinguishing it from through-hole DIP versions like the CPL+. This packaging facilitates automated assembly in modern electronic manufacturing environments while maintaining the electrical characteristics of the base ICL7109 architecture.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers for the ICL7109CMH+ variant were not identified in the provided source material. Users should consult official manufacturer cross-reference guides for compatible alternatives.