MAX1236EUA+

Analog To Digital Converters (ADC) Overview

The MAX1236EUA+ is a low-power, 12-bit analog-to-digital converter (ADC) from the MAX1236–MAX1239 series. It features an internal track/hold circuit, voltage reference, clock, and an I²C-compatible 2-wire serial interface. The device operates from a single supply of 4.5V to 5.5V and consumes 670µA at the maximum sampling rate of 94.4ksps. Supply current drops below 230µA for rates under 46ksps. AutoShutdown™ powers down the device between conversions, reducing current to less than 1µA at low throughput. It includes four analog input channels configurable for unipolar or bipolar, single-ended or differential operation. The full-scale range is determined by the internal 4.096V reference or an external reference from 1V to VDD. It is available in an 8-pin µMAX package.

Analog To Digital Converters (ADC) Feature Summary

• I²C-compatible 2-wire serial interface supporting up to 1.7MHz high-speed mode
• Internal 4.096V voltage reference with support for external references from 1V to VDD
• Software-configurable analog inputs for single-ended or fully differential operation
• AutoShutdown™ power-down mode reduces supply current to less than 1µA

Analog To Digital Converters (ADC) Applications

• Handheld portable applications
• Medical instruments
• Battery-powered test equipment
• Solar-powered remote systems
• Received-signal-strength indicators

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and lead-free packaging specifications against the latest datasheet revision. Ensure ordering suffixes match required temperature ranges and package types. Request official documentation for pin configurations and electrical characteristics prior to integration.

Analog To Digital Converters (ADC) Selection Notes

Select this part for designs requiring 12-bit resolution with minimal channel count. Verify that the 4.5V to 5.5V supply range aligns with system power rails. Consider the 4-channel multiplexer capacity for input requirements. Evaluate the I²C bus speed limitations if multiple devices share the same lines. Check thermal dissipation limits within the 8-pin µMAX package for the specific application environment.

Analog To Digital Converters (ADC) Part Context

This component belongs to the MAX1236–MAX1239 family of low-power, multichannel ADCs. It shares architectural similarities with the MAX1237, which uses a 2.7V to 3.6V supply and a 2.048V internal reference. Pin-compatible alternatives include the 10-bit MAX1136–MAX1139 series and the 8-bit MAX1036–MAX1039 series. The MAX1238 and MAX1239 variants offer 12 channels but utilize a 16-pin QSOP package.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible substitutes include the MAX1237EUA+ for lower voltage applications. For higher channel counts, consider the MAX1238EEE+ or MAX1239EEE+, though these require a 16-pin QSOP package. Cross-reference the MAX1136–MAX1139 series for 10-bit resolution needs or the MAX1036–MAX1039 series for 8-bit requirements.