MAX144BEUA

Analog To Digital Converters (ADC) Overview

The MAX144BEUA is a low-power, 12-bit analog-to-digital converter (ADC) in an 8-pin µMAX package. It operates on a single +2.7V to +5.25V supply and features two single-ended channels with a sampling rate of 108ksps. The device utilizes a successive-approximation register (SAR) architecture with an internal track-and-hold circuit and clock. It communicates via a high-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE standards. Power consumption is 3.2mW at maximum throughput, dropping to 0.2µA in shutdown mode. The integral nonlinearity (INL) is ±1 LSB for the BEUA variant.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel single-ended operation with integrated track-and-hold
• Low power consumption with automatic power-down capability
• Flexible 3-wire serial interface supporting multiple protocols
• Compact 8-pin µMAX surface-mount packaging

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 'BEUA' corresponds to the -40°C to +85°C temperature range and ±1 LSB INL specification. Confirm the manufacturer designation as Analog Devices Inc./Maxim Integrated. Ensure the component is sourced from authorized distributors to guarantee authenticity and traceability.

Analog To Digital Converters (ADC) Selection Notes

Select the MAX144BEUA when dual single-ended inputs are required within the industrial temperature range. Compare against the MAX144AEUA if higher precision (±0.5 LSB INL) is needed. Consider the MAX145 series if pseudo-differential input configuration is preferred over single-ended channels.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MAX144/MAX145 family of 12-bit ADCs. It shares architectural similarities with the MAX157 and MAX159, which offer pin-compatible 10-bit versions. The device is designed for applications demanding small footprint and low energy usage.

Analog To Digital Converters (ADC) Replacement Considerations

The MAX144AEUA serves as a higher-precision alternative within the same package. For 10-bit requirements, the MAX157 or MAX159 provide pin-compatible options.