MAX144AEPA

Analog To Digital Converters (ADC) Overview

The MAX144AEPA is a low-power, 12-bit successive-approximation analog-to-digital converter (ADC) housed in an 8-pin Plastic DIP package. It operates on a single +2.7V to +5.25V supply and features two single-ended input channels with a maximum sampling rate of 108ksps. The device integrates an internal track-and-hold circuit, an on-chip clock, and a high-speed 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE standards. Key electrical specifications include a typical supply current of 0.9mA at full speed, a shutdown current of 0.2µA, and an INL accuracy of ±0.5 LSB over the -40°C to +85°C temperature range.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel single-ended operation with integrated track-and-hold
• Low power consumption with automatic power-down mode
• Flexible 3-wire serial interface compatible with standard protocols
• On-chip oscillator for simplified system 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 specific suffix 'E' confirms the extended industrial temperature range of -40°C to +85°C. Confirm the 'P' suffix indicates the 8-pin Plastic DIP package type. Ensure the external reference voltage requirements are met by the system design, as this component requires an external reference source rather than an internal one.

Analog To Digital Converters (ADC) Selection Notes

Select the MAX144 variant for dual single-ended inputs or the MAX145 for pseudo-differential inputs. Consider the MAX144AEUA if surface-mount packaging is required instead of through-hole. Evaluate the source impedance limitations; inputs below 1kΩ are recommended to maintain AC performance without additional filtering components.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MAX144/MAX145 family of low-power ADCs from Analog Devices/Maxim Integrated. It shares architectural similarities with the MAX157 and MAX159, which offer pin-compatible 10-bit resolution versions. The device is designed for applications demanding small package size and efficient power usage.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers: None identified.