MAX136CQH+D

ADCs/DACs - Special Purpose Overview

The MAX136CQH+D is a low-power, 3½-digit analog-to-digital converter (ADC) featuring an integrated display hold function. It directly drives nonmultiplexed liquid crystal displays without external drive circuitry. The device utilizes dual-slope conversion to reject interference and offers high accuracy with rollover error under one count and zero reading drift below 1µV/°C. Key specifications include power dissipation guaranteed at less than 1mW at 9V, true differential inputs, and on-chip clock and reference components. It operates within a temperature range of 0°C to +70°C in a 44-pin PLCC package.

ADCs/DACs - Special Purpose Feature Summary

• Integrated Display Hold pin allows indefinite freezing of readings
• Directly drives nonmultiplexed LCDs without external circuitry
• Power dissipation <1mW at 9V for extended battery life
• On-chip clock and voltage reference

ADCs/DACs - Special Purpose Applications

• Digital panel meters
• Portable measurement systems
• Bridge transducer measurements
• Load cell applications

ADCs/DACs - Special Purpose Procurement Notes

Verify the component is lead-free and RoHS-compliant as indicated by the '+' suffix. Confirm the package type is 44-pin PLCC and the operating temperature range matches the 'C' designation (0°C to +70°C). Ensure supply voltage requirements align with the 9V typical operation noted in the datasheet.

ADCs/DACs - Special Purpose Selection Notes

Select this part when a display hold feature is required, distinguishing it from the ICL7136. It serves as a pin-compatible replacement for the ICL7116 with significantly lower power consumption. Verify that the application requires direct LCD driving capabilities and does not need multiplexed display support.

ADCs/DACs - Special Purpose Part Context

The MAX136 series includes variants such as MAX136CPL+ (PDIP), MAX136CMH+ (MQFP), and MAX136C/D (Dice). The CQH+ variant specifically denotes the 44-pin Plastic Leaded Crystal Carrier (PLCC) package with lead-free/RoHS compliance. All variants share the same core ADC functionality and electrical characteristics.

ADCs/DACs - Special Purpose Replacement Considerations

Pin-compatible with ICL7116 but with reduced power consumption. Differs from ICL7136 by including a dedicated Hold pin. No other public substitute part numbers are confirmed in the provided documentation.