ICL7109CQH+D

Analog To Digital Converters (ADC) Overview

The ICL7109CQH+D is a monolithic 12-bit analog-to-digital converter (ADC) 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 40-pin PLCC package and operates within a commercial temperature range of 0°C to +70°C. Designed for microprocessor compatibility, it offers parallel binary outputs with three-state logic, facilitating direct interface with digital systems without requiring external latches.

Analog To Digital Converters (ADC) Feature Summary

• Monolithic 12-bit resolution with dual-slope integration architecture
• Three-state binary output registers compatible with microprocessor buses
• Differential analog input configuration for noise rejection
• Integrated status signaling for conversion completion detection

Analog To Digital Converters (ADC) Applications

• Microprocessor-based data acquisition systems
• Remote data logging applications with UART interfaces
• High-resolution industrial instrumentation
• Precision panel meters and test equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'CQH+D' against official Analog Devices documentation to confirm pinout and electrical specifications, as distributor listings may vary. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the manufacturer part number with authorized distributors to confirm current availability and authenticity before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when 12-bit resolution and microprocessor interfacing are required. The dual-slope architecture provides excellent linearity and power-line noise rejection. Consider the 40-pin PLCC package constraints for PCB layout. Verify that the operating temperature range of 0°C to +70°C aligns with the environmental conditions of the target application.

Analog To Digital Converters (ADC) Part Context

The ICL7109 belongs to the Maxim Integrated ICL710x family of integrating ADCs. This series is widely recognized for its ease of use in digital measurement applications. The CQH+D designation indicates a specific package variant (PLCC) with lead-free composition, adhering to modern environmental standards while maintaining the core performance characteristics of the original ICL7109 design.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers for ICL7109CQH+D were not identified in the provided source material. Users should consult official Analog Devices documentation for recommended cross-references or newer generation replacements.