MAX1246BEEE-T

Analog To Digital Converters (ADC) Overview

The MAX1246BEEE-T is a 12-bit successive-approximation analog-to-digital converter (ADC) featuring four single-ended or two differential input channels. It operates from a single +2.7V to +3.6V supply and includes an internal 2.5V reference with a ±1.5% adjustment range. The device supports sampling rates up to 133ksps via a 4-wire serial interface compatible with SPI, QSPI, and Microwire protocols. It utilizes a 16-pin QSOP package and provides software-configurable unipolar/bipolar inputs along with multiple power-down modes to minimize current consumption.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a 4-channel multiplexer with high-bandwidth track/hold circuitry for efficient data acquisition.
• Features a flexible serial interface that connects directly to microprocessors without external logic.
• Includes an internal 2.5V reference buffer amplifier with voltage-adjustment capabilities.
• Supports low-power operation with programmable shutdown modes to reduce supply current.

Analog To Digital Converters (ADC) Applications

• Portable Data Logging
• Medical Instruments
• Pen Digitizers
• Battery-Powered Instruments

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'T' against official documentation to confirm tape-and-reel packaging status, as standard datasheets often list bulk tube options. Confirm the 'B' grade accuracy specifications match the design requirements. Ensure the manufacturer source is recognized as Analog Devices or Maxim Integrated to avoid counterfeit components.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 12-bit resolution and 133ksps sampling rate are required in a compact QSOP-16 footprint. It is suitable for applications needing a single-supply operation between 2.7V and 3.6V. Consider the internal reference if external precision references are not desired. Verify compatibility with the host system's serial clock polarity and phase settings.

Analog To Digital Converters (ADC) Part Context

This part belongs to the MAX1246/MAX1247 family of low-power, serial ADCs. The MAX1246 variant distinguishes itself by including an internal reference, whereas the MAX1247 requires an external one. The 'B' suffix indicates a specific accuracy grade with defined integral and differential nonlinearity limits compared to other grades in the series.

Analog To Digital Converters (ADC) Replacement Considerations

The MAX1246ACEE+ and MAX1246BCEE+ are direct pin-compatible alternatives within the same package and temperature range. For extended temperature ranges, the MAX1246AEEE+ or MAX1246BEEE+ variants offer -40°C to +85°C operation. Ensure the replacement matches the specific accuracy grade and reference configuration.