MAX139CMH+

ADCs/DACs - Special Purpose Overview

The MAX139CMH+ is a specialized integrated circuit classified as an Analog-to-Digital Converter (ADC) within the Maxim Integrated product portfolio. It features a 3.5-digit resolution and supports dual-channel operation, packaged in a 44-pin MQFP (10x10 mm) surface-mount format. The device operates on a single power supply ranging from 2.5V to 7V and functions within a commercial temperature range of 0°C to 70°C. This component integrates ADC functionality with specific display driver capabilities, designed for direct interface with digital displays.

ADCs/DACs - Special Purpose Feature Summary

• Dual-channel 3.5-digit ADC architecture
• 44-pin MQFP (10x10mm) surface-mount package
• Single-supply operation (2.5V to 7V)
• Integrated charge pump and reference

ADCs/DACs - Special Purpose Applications

• Direct LED display driving systems
• LCD driver applications requiring analog conversion
• Panel meter designs utilizing integrating ADC topologies

ADCs/DACs - Special Purpose Procurement Notes

Verify component status prior to design finalization, as distributor records indicate this part number may be discontinued or subject to limited supply constraints. Confirm RoHS3 compliance and moisture sensitivity level (MSL 3) requirements against current manufacturing standards. Cross-reference ordering suffixes to ensure exact package and temperature grade alignment.

ADCs/DACs - Special Purpose Selection Notes

Select this component when a combined ADC and display driver solution is required for 3.5-digit readouts. Ensure the application voltage falls within the 2.5V to 7V single-supply range. Verify that the 44-MQFP footprint matches the PCB layout, noting the 10x10mm dimensions. Consider thermal dissipation limits within the 0°C to 70°C operating window.

ADCs/DACs - Special Purpose Part Context

The MAX139CMH+ belongs to the MAX138/MAX139 family of LCD drivers and ADCs. These devices typically replace traditional integrating ADCs by combining conversion, reference, and drive functions into a single chip. The 'C' suffix denotes the commercial temperature range, while 'MH+' indicates the lead-free MQFP package variant.

ADCs/DACs - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Evaluate the MAX138CMH+ for similar functionality, though pinout and feature sets must be verified against official datasheets before substitution.