MAX11645EUA+

Analog To Digital Converters (ADC) Overview

The MAX11645EUA+ is a low-power, 12-bit analog-to-digital converter (ADC) featuring two single-ended or one fully differential input channel. It operates from a single supply of 2.7V to 3.6V and includes an internal track/hold circuit, voltage reference, and clock. The device utilizes an I²C-compatible 2-wire serial interface supporting data rates up to 1.7MHz in high-speed mode. It achieves a throughput rate of 94.4ksps with a typical supply current of 670µA at that rate. The part is housed in an 8-pin μMAX package and is guaranteed to operate over the extended temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated internal voltage reference providing a nominal output of 2.048V
• Software-configurable unipolar or bipolar operation for differential inputs
• Ultra-low power consumption with AutoShutdown capability reducing current below 1µA
• High-speed I²C interface supporting both Fast Mode and High-Speed Mode

Analog To Digital Converters (ADC) Applications

• Handheld portable applications
• Medical instruments
• Battery-powered test equipment
• Solar-powered remote systems
• Power-supply monitoring

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix to confirm the package type and lead-free status. Ensure the supply voltage requirements align with the 2.7V to 3.6V specification for the MAX11645 variant. Confirm compatibility with the I²C bus timing requirements for the desired throughput rate.

Analog To Digital Converters (ADC) Selection Notes

Select the MAX11645EUA+ when a 12-bit resolution and dual-channel capability are required within an 8-pin surface-mount footprint. This component is suitable for designs needing an integrated reference and clock to minimize external components. Consider the MAX11644 if a higher supply voltage range of 4.5V to 5.5V is necessary.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MAX11644/MAX11645 family of low-power ADCs. It shares architectural similarities with the MAX11646 and MAX11647, which offer 10-bit resolution. The EUA+ suffix indicates an 8-pin μMAX package with RoHS compliance and lead-free construction.

Analog To Digital Converters (ADC) Replacement Considerations

The MAX11644EUA+ is a pin-compatible alternative requiring a 4.5V to 5.5V supply and offering a 4.096V internal reference.