MAX145BCUA

Analog To Digital Converters (ADC) Overview

The MAX145BCUA+ is a low-power, 12-bit analog-to-digital converter (ADC) from Analog Devices/Maxim Integrated. It features a single pseudo-differential input channel and operates on a +2.7V to +5.25V supply. The device utilizes a successive-approximation register (SAR) architecture with an internal track-and-hold circuit. It supports a maximum sampling rate of 108ksps and consumes only 3.2mW at full speed. Power consumption drops to 0.2µA in shutdown mode. The component communicates via a high-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE standards. It is housed in an 8-pin µMAX package.

Analog To Digital Converters (ADC) Feature Summary

• Single pseudo-differential input channel configuration
• Low power consumption with automatic power-down capability
• Internal track-and-hold structure for signal acquisition
• High-speed 3-wire serial interface compatibility

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 'BCUA+' against the manufacturer's current product status documentation. Confirm that the temperature range and accuracy specifications align with project requirements before finalizing procurement orders. Ensure compliance with relevant environmental directives such as RoHS by checking the official datasheet certification details.

Analog To Digital Converters (ADC) Selection Notes

Select the MAX145 variant when a pseudo-differential input is required rather than the dual single-ended channels of the MAX144. Consider the external reference voltage requirements and source impedance limitations during system design. Evaluate the trade-off between sampling rate and power consumption based on the application's throughput needs.

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 devices in the series but differs in input channel configuration. Pin-compatible 10-bit versions are available within the same product line for applications requiring lower resolution.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives include the MAX144ACUA+ and MAX144BCUA+. Verify functional equivalence regarding input channel types and electrical characteristics before substitution.