MAX11647EUA+T

Analog To Digital Converters (ADC) Overview

The MAX11647EUA+T is a low-power, 10-bit analog-to-digital converter (ADC) featuring two single-ended or one differential input channel. It integrates a track/hold circuit, internal clock, and a 2.048V voltage reference within an 8-pin µMAX package. The device operates from a single supply of 2.7V to 3.6V and communicates via an I²C-compatible serial interface supporting up to 1.7MHz in high-speed mode. It achieves a throughput rate of 94.4ksps with a typical supply current of 670µA, reducing to less than 1µA in AutoShutdown power-down mode between conversions.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a 2.048V internal voltage reference and internal clock for simplified system design
• Supports software-configurable unipolar/bipolar operation and single-ended/differential input modes
• Features AutoShutdown technology to minimize supply current during idle periods
• Includes an internal FIFO buffer to facilitate channel-scan mode operations

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the component matches the specific 8-pin µMAX package configuration and the factory-programmed I²C slave address of 0110110. Confirm that the operating temperature range meets the extended limits of -40°C to +85°C required for the application environment. Ensure the supply voltage remains strictly within the 2.7V to 3.6V specification to maintain valid ADC performance and prevent damage.

Analog To Digital Converters (ADC) Selection Notes

Select this model when a 10-bit resolution is sufficient and a 2.048V internal reference aligns with the signal range. Choose the MAX11647 over the MAX11646 if the system operates on a lower voltage supply between 2.7V and 3.6V. Consider the external reference capability if a voltage outside the internal 2.048V range is required. Verify that the I²C bus speed requirements are compatible with the supported fast and high-speed modes.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MAX11646/MAX11647 family of low-power, 1-/2-channel, I²C, 10-bit ADCs. It is pin-compatible with the MAX11644 and MAX11645, which offer 12-bit resolution. The device is designed for space-constrained applications requiring minimal external components due to its integrated reference and clock capabilities.

Analog To Digital Converters (ADC) Replacement Considerations

The MAX11646EUA+T serves as a direct functional substitute provided the system supply voltage supports the 4.5V to 5.5V range and the higher 4.096V internal reference is acceptable.