MAX144ACUA+

Analog To Digital Converters (ADC) Overview

The MAX144ACUA+ is a low-power, 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +2.7V to +5.25V supply and features a 7.4µs successive-approximation conversion time with an automatic power-down mode reducing current to 0.2µA. The device includes two single-ended channels, an internal track-and-hold circuit, and a fast wake-up time of 2.5µs. It utilizes a high-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE standards. Packaged in an 8-pin µMAX format, it supports sampling rates up to 108ksps while maintaining excellent dynamic performance.

Analog To Digital Converters (ADC) Feature Summary

• Ultra-low power consumption with automatic shutdown capabilities
• Integrated track-and-hold circuit for signal acquisition
• Flexible 3-wire serial interface compatible with standard protocols
• Compact 8-pin µMAX package design

Analog To Digital Converters (ADC) Applications

• Battery-powered systems
• Portable data logging
• Isolated data acquisition
• Process-control monitoring
• Medical instruments

Analog To Digital Converters (ADC) Procurement Notes

Verify the component status as discontinued or obsolete through official manufacturer channels before procurement planning. Confirm availability of alternative packages or pin-compatible versions if necessary. Ensure compliance with RoHS directives and check for any specific handling requirements associated with the µMAX package during storage and assembly processes.

Analog To Digital Converters (ADC) Selection Notes

Select the MAX144ACUA+ when dual single-ended inputs are required within a compact footprint. Consider the external reference voltage range and source impedance limitations for optimal accuracy. Evaluate the trade-off between sampling rate and power consumption based on application throughput needs. Verify compatibility with the host microprocessor's serial interface timing constraints.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MAX144/MAX145 family of low-power, 12-bit ADCs. It shares architectural similarities with other Maxim Integrated converters but is distinct in its specific channel configuration and package type. The ACUA+ suffix indicates a commercial temperature range and lead-free construction within the µMAX package variant.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible 10-bit versions such as the MAX157 and MAX159 are available from the same manufacturer. These alternatives offer lower resolution but may provide similar power characteristics and interface compatibility for applications where 12-bit precision is not strictly required.