MAX157ACUA+T

Analog To Digital Converters (ADC) Overview

The MAX157ACUA+T is a low-power, 10-bit analog-to-digital converter (ADC) from Analog Devices/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 architecture with an internal track-and-hold circuit, achieving a maximum sampling rate of 108ksps. Power consumption is 3.2mW at full speed, dropping below 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

• 10-bit resolution with 108ksps sampling rate
• Two single-ended analog input channels
• Single-supply operation (+2.7V to +5.25V)
• Low power: <0.2µA shutdown current
• 3-wire serial interface (SPI/QSPI/MICROWIRE)

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the package type matches the 'U' suffix for µMAX. Confirm the temperature range corresponds to the 'C' suffix (0°C to +70°C). Ensure the ordering suffix aligns with the specific accuracy grade required. Check availability as this component may have limited stock or be subject to allocation.

Analog To Digital Converters (ADC) Selection Notes

Select the MAX157 variant for dual single-ended inputs. Choose the MAX159 if pseudo-differential input is required. Consider the external reference voltage stability for optimal performance. Ensure the source impedance is below 4kΩ or add filtering capacitors to maintain AC performance.

Analog To Digital Converters (ADC) Part Context

This part belongs to the MAX157/MAX159 family of low-power ADCs. It offers pin-compatible upgrades to 12-bit precision devices like the MAX144 series. The µMAX package provides a space-saving solution for compact designs.

Analog To Digital Converters (ADC) Replacement Considerations

For 12-bit upgrades, consider the MAX144/MAX145 series which are pin-compatible. Verify that the replacement supports the required input configuration (single-ended vs. pseudo-differential) and operating temperature range.