ICL7109EPL+

Analog To Digital Converters (ADC) Overview

The ICL7109EPL+ is a monolithic 12-bit analog-to-digital converter manufactured by Analog Devices Inc./Maxim Integrated. It features a dual-slope architecture with differential input and parallel interface, housed in a 40-pin PDIP package for through-hole mounting. The device operates on a single 5 V supply within an industrial temperature range of -40°C to +85°C. Key electrical specifications include a sampling rate of 30 S/s, integral nonlinearity of +/- 1 counts, and external reference voltage support at 204.8 mV. Power dissipation is rated at 500 mW.

Analog To Digital Converters (ADC) Feature Summary

• Provides 12-bit binary output with three-state registers for direct microprocessor interfacing without external latches.
• Supports UART handshake mode for serial data transmission in remote data acquisition applications.
• Integrates auto-zero functionality to minimize offset errors and enhance measurement accuracy.

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix EPL against official datasheets to confirm the extended industrial temperature range (-40°C to +85°C) and PDIP-40 packaging. Ensure compatibility with existing board layouts for through-hole installation. Confirm RoHS compliance status via manufacturer documentation prior to final procurement decisions.

Analog To Digital Converters (ADC) Selection Notes

Select this component when 12-bit resolution and high noise immunity are required for low-frequency signals. The dual-slope architecture makes it suitable for applications where power line interference rejection is critical. Consider the parallel interface requirements and available GPIO pins on the host microcontroller before implementation.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ICL7109 series of integrating ADCs designed for easy system integration. It serves as a bridge between analog sensor signals and digital processing units, offering a balance between precision and interface simplicity compared to higher-speed delta-sigma converters.

Analog To Digital Converters (ADC) Replacement Considerations

ICL7109IPL+ offers identical electrical performance but supports a wider commercial/industrial temperature range starting from -20°C. Verify thermal requirements before substituting. No direct pin-compatible modern replacements exist; redesign may be necessary for newer technologies.