ICL7136CM44Z

ADCs/DACs - Special Purpose Overview

The ICL7136CM44Z is a low-power, 3.5-digit analog-to-digital converter (ADC) manufactured by Renesas Electronics Corporation. It utilizes a dual-slope integration architecture and operates on a single 9V power supply. The device features a 44-pin MQFP surface-mount package with dimensions of 10x10 mm and a height of 2.45 mm. Designed for precision applications, it offers high resolution and low input leakage current. The component functions as both an ADC and a display driver, supporting direct connection to LCD segments. It operates within a commercial temperature range of 0°C to 70°C.

ADCs/DACs - Special Purpose Feature Summary

• Dual-slope ADC architecture providing 3.5-digit resolution
• Integrated LCD driver capability for direct segment control
• Low power dissipation suitable for battery-operated devices
• High-impedance differential input with low noise characteristics

ADCs/DACs - Special Purpose Applications

• Precision digital multimeters
• Industrial process control instrumentation
• Battery-powered measurement devices
• Weighing scales and load cell interfaces

ADCs/DACs - Special Purpose Procurement Notes

Verify component status carefully as the ICL7136CM44Z is listed as obsolete or end-of-life in multiple distributor records. Confirm availability through authorized channels or check for active replacement series from Renesas or other manufacturers if long-term supply is required. Ensure RoHS compliance status matches project requirements, as older batches may not meet current environmental standards.

ADCs/DACs - Special Purpose Selection Notes

Select this component when a combined ADC and LCD driver solution is needed to reduce board space and component count. The 3.5-digit resolution is appropriate for general-purpose precision measurements. Consider the 44-pin MQFP package constraints during PCB layout. Verify that the 9V single-supply operation aligns with the system power design. For higher resolution needs, evaluate the ICL7135 or ICL7136A variants.

ADCs/DACs - Special Purpose Part Context

The ICL7136CM44Z belongs to the ICL7136 family of low-power 3.5-digit A/D converters. This series was originally developed by Maxim Integrated and later acquired by Renesas Electronics. The CM44 suffix indicates the specific 44-pin MQFP plastic quad flat package variant. It is functionally compatible with other industry-standard 3.5-digit ADCs like the TC7136, though pinouts and electrical specifications should be verified against official datasheets before substitution.

ADCs/DACs - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers include ICL7136CMH+D and ICL7136CMH+TD from Analog Devices/Maxim Integrated. These are listed as direct or similar replacements in distributor databases. Verify pin compatibility and electrical parameters before implementation.