ICL7136CPLZ

ADCs/DACs - Special Purpose Overview

The ICL7136CPLZ is a low-power, 3½-digit analog-to-digital converter (ADC) manufactured by Renesas Electronics Corporation. It integrates dual-slope conversion with direct LCD driver capabilities, eliminating the need for external multiplexing or decoding logic. The device operates on a single 9V supply and features a 40-pin PDIP package. Key electrical characteristics include a typical power dissipation of 500µW, a zero reading at zero input, and high-impedance differential inputs. It supports overrange recovery to ensure first-reading accuracy.

ADCs/DACs - Special Purpose Feature Summary

• Integrated 3½-digit ADC with direct LCD segment and common drivers
• Low power consumption: 500µW typical with 9V single supply
• Fast overrange recovery ensuring accurate first reading after overload
• High-impedance differential analog inputs with 1pA typical leakage current

ADCs/DACs - Special Purpose Applications

• Battery-powered digital multimeters
• Precision temperature measurement systems
• Industrial process control instrumentation

ADCs/DACs - Special Purpose Procurement Notes

Verify component status as the ICL7136 series is generally discontinued. Confirm RoHS compliance and moisture sensitivity level (MSL 1) prior to procurement. Check for valid replacement part numbers such as the TC7136ACLW713 if new production units are required.

ADCs/DACs - Special Purpose Selection Notes

Select this component for designs requiring minimal external circuitry for LCD displays. Ensure the application voltage matches the 9V single-supply requirement. Consider thermal performance given the low power dissipation, and verify that the 40-PDIP package fits the target PCB layout constraints.

ADCs/DACs - Special Purpose Part Context

The ICL7136 belongs to the ICL71xx family of 3½-digit A/D converters originally developed by Maxim Integrated and later acquired by Renesas. It serves as a successor to earlier models like the ICL7107, offering improved power efficiency and integrated display driving functions suitable for portable battery-operated instruments.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part number: TC7136ACLW713 (Microchip). Verify pin compatibility and electrical specifications before substitution.