MAX144ACUA+T

Analog To Digital Converters (ADC) Overview

The MAX144ACUA+T is a low-power, 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated. It features two single-ended channels and operates on a single +2.7V to +5.25V supply. The device utilizes a successive-approximation register (SAR) architecture with an internal track-and-hold circuit, achieving a maximum sampling rate of 108ksps. Key electrical parameters include a conversion time of 7.4µs, integral nonlinearity (INL) of ±0.5 LSB, and differential nonlinearity (DNL) of ±0.75 LSB. Power consumption is 3.2mW at full speed, dropping to 0.2µA in shutdown mode. It communicates via a high-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE standards.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel single-ended input configuration for flexible signal acquisition
• Ultra-low power operation with automatic power-down and fast wake-up capabilities
• Integrated track-and-hold amplifier supporting up to 108ksps sampling rates
• Compact 8-pin µMAX package designed for space-constrained applications

Analog To Digital Converters (ADC) Applications

• Battery-powered portable systems requiring extended operational life
• Portable data logging equipment with limited power budgets
• Isolated data acquisition modules in industrial environments
• Process-control monitoring circuits demanding precision and low cost

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing from distributors. Confirm RoHS compliance status through official manufacturer documentation or authorized supplier declarations. Ensure the operating temperature range matches the 'C' designation (0°C to +70°C) for your specific application environment before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 12-bit resolution is required alongside strict power constraints in a small footprint. Compare against the MAX145 if pseudo-differential inputs are needed instead of dual single-ended channels. Consider the MAX157 or MAX159 if 10-bit resolution suffices and pin compatibility allows for potential future migration within the same package family.

Analog To Digital Converters (ADC) Part Context

This part belongs to the MAX144/MAX145 family of low-power serial ADCs. It shares architectural similarities with other Maxim Integrated SAR converters but is distinct in its specific combination of 12-bit resolution, dual-channel capability, and ultra-low shutdown current. The device serves as a bridge between high-performance data acquisition and battery-operated portability.

Analog To Digital Converters (ADC) Replacement Considerations

The MAX144BCUA+ offers identical functionality with relaxed linearity specifications (±1 LSB INL). For 10-bit alternatives, the MAX157 and MAX159 provide pin-compatible solutions. Verify that any substitute maintains the required 3-wire serial interface compatibility and voltage range.