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 features a dual-slope integration architecture with differential input and parallel interface. The device operates on a single ±5V power supply within an industrial temperature range of 0°C to +70°C. Key electrical parameters include a sampling rate of 30 samples per second, a reference voltage of 204.8 mV, and integral nonlinearity of +/- 1 counts. It is housed in a 40-pin PDIP package.

Analog To Digital Converters (ADC) Feature Summary

• Integrated 14-bit latch and 14-bit three-state output register for direct microprocessor connection 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 microprocessors such as the 8051 family for digital panel meters
• Remote data recording systems utilizing UART handshake mode
• High-resolution industrial instrumentation requiring low noise performance

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm RoHS compliance status and check for specific ordering suffixes that may indicate package variations. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a high-resolution 12-bit ADC with integrated display logic is required. It is suitable for applications needing direct binary output to processors. Consider the external component requirements for integrator capacitors and resistors during circuit design to optimize noise performance and conversion speed.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ICL7109 series of integrating analog-to-digital converters. It is distinct from the ICL7107, which is a 3.5-digit LED display driver, and the ICL7137, which is a specialized display driver. The ICL7109 focuses on providing raw binary data output for processing rather than driving displays directly.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify pin compatibility and electrical specifications before considering any alternative components.