ICL7136CQH+

ADCs/DACs - Special Purpose Overview

The ICL7136CQH+ is a low-power, 3½-digit analog-to-digital converter (ADC) with direct LCD drivers, manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates on a single 9V supply and draws a maximum supply current of 100 µA. The device features a maximum clock frequency of 48 kHz and dissipates up to 611 mW. Designed for commercial use, it functions within an operating temperature range of 0°C to +70°C. The component is housed in a 44-PLCC package measuring 16.59x16.59 mm.

ADCs/DACs - Special Purpose Feature Summary

• Integrated 3½-digit ADC with direct LCD driver outputs
• Low power consumption with 100 µA maximum supply current
• Single 9V power supply operation
• Commercial temperature range from 0°C to +70°C

ADCs/DACs - Special Purpose Applications

• Battery-powered digital panel meters
• Portable instrumentation displays
• Industrial process control readouts

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix '+', which indicates lead-free compliance and RoHS adherence according to manufacturer standards. Confirm the PLCC-44 package dimensions match the target PCB footprint. Check current availability status as distribution may be limited for legacy components.

ADCs/DACs - Special Purpose Selection Notes

Select this part when a monolithic solution combining ADC conversion and LCD driving is required to minimize external component count. Ensure the application voltage aligns with the specified 9V single-supply requirement. Verify that the 48 kHz clock speed meets the sampling rate needs of the measurement system.

ADCs/DACs - Special Purpose Part Context

This component belongs to the ICL7136 series, a family of low-power 3½-digit A/D converters. Variants such as ICL7136CPL+ offer similar functionality in different packages like PDIP-40. The CQH+ designation specifically denotes the commercial grade temperature range and the PLCC-44 surface-mount package configuration.

ADCs/DACs - Special Purpose Replacement Considerations

Direct substitutes include other members of the ICL7136 family, such as ICL7136CPL+ or ICL7136CMH+, provided the package type matches the design constraints. Cross-reference pinouts carefully when replacing through-hole variants with surface-mount equivalents.