MAX1239EEE+T

Analog To Digital Converters (ADC) Overview

The MAX1239EEE+T is a low-power, 12-bit analog-to-digital converter (ADC) featuring 12 analog input channels. It operates from a single supply voltage ranging from 2.7V to 3.6V and includes an internal track/hold circuit, voltage reference, and clock. The device utilizes a high-speed I²C-compatible serial interface supporting data rates up to 1.7MHz. It achieves a maximum sampling rate of 94.4ksps with a typical supply current of 670µA. The part is housed in a 16-pin QSOP package and is guaranteed to operate over an extended temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Features a high-speed I²C-compatible serial interface supporting both Fast Mode (400kHz) and High-Speed Mode (1.7MHz).
• Includes an internal 2.048V voltage reference and supports external references ranging from 1V to VDD.
• Supports software-configurable unipolar or bipolar operation for fully differential or single-ended inputs.
• Incorporates AutoShutdown technology to power down the device between conversions, reducing supply current significantly.

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and lead-free status. Ensure that the selected variant matches the required operating voltage range and temperature specifications for the intended application environment before finalizing procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 12-bit resolution with multiple analog inputs is required within a low-power constraint. Verify compatibility with the system's I²C bus timing requirements, particularly if High-Speed Mode is necessary to achieve conversion rates above 22.2ksps. Confirm that the 16-pin QSOP package fits the available PCB footprint.

Analog To Digital Converters (ADC) Part Context

This device belongs to the MAX1236–MAX1239 family of low-power, multichannel ADCs. While pin-compatible with other members of the series, it is distinguished by its 12-channel configuration and 2.7V to 3.6V supply voltage range. It serves as a higher-channel alternative to the 4-channel variants within the same product line.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives include the MAX1236, MAX1237, and MAX1238. Note that these parts differ in channel count and supply voltage requirements. Verify electrical characteristics and interface compatibility before substitution.