MAX11253ATJ+T

Analog To Digital Converters (ADC) Overview

The MAX11253ATJ+T is a 16-bit, 6-channel delta-sigma analog-to-digital converter (ADC) from Analog Devices/Maxim Integrated. It features a programmable gain amplifier (PGA) with gains from 1x to 128x and a noise spectral density of 6.2nV/√Hz in low-noise mode. The device supports data rates up to 64ksps and communicates via an SPI interface. It operates on a single 2.7V to 3.6V analog supply or split ±1.8V supplies, with a digital supply range of 1.7V to 3.6V. Packaged in a 5mm x 5mm TQFN-32, it functions within a temperature range of -40°C to +125°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated low-noise PGA with programmable gain settings from 1x to 128x for high-resolution measurements.
• Supports both single-ended and split analog supply configurations to accommodate various input voltage ranges.
• Includes user-programmable offset and gain registers for system-level calibration.
• Features general-purpose outputs (GPO) and synchronization inputs for multi-device coordination.

Analog To Digital Converters (ADC) Applications

• Analog I/O for Programmable Logic Controllers
• Weigh Scales
• Pressure Sensors
• Battery-Powered Instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the component authenticity by checking the manufacturer's marking against official datasheet specifications. Ensure the ordering suffix matches the required package type and tape-and-reel configuration. Confirm that the supplier provides valid traceability documentation to guarantee the part meets the specified industrial temperature and performance standards.

Analog To Digital Converters (ADC) Selection Notes

Select this ADC when high resolution and low power consumption are critical for portable or battery-operated systems. The integrated PGA eliminates the need for external amplifiers in many sensor interfaces. Consider the available data rates and noise performance trade-offs between low-noise and low-power modes based on the specific application requirements.

Analog To Digital Converters (ADC) Part Context

The MAX11253 belongs to Maxim Integrated's precision ADC family, designed for industrial applications requiring wide dynamic range. It complements other signal chain components by providing direct interfacing capabilities with high-impedance sensors. The device is part of a broader portfolio of data converters optimized for accuracy and efficiency in demanding environments.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements should be sought from the same product family with compatible pinouts and electrical characteristics. Verify that any substitute maintains the 16-bit resolution, 6-channel capability, and SPI interface compatibility. Ensure the alternative device supports the required operating temperature range and supply voltage conditions.

Analog To Digital Converters (ADC) FAQ

What is the maximum data rate supported by the MAX11253?

The MAX11253 supports sample rates up to 64ksps in continuous conversion mode.

Can the MAX11253 operate with split analog supplies?

Yes, the device can operate from split ±1.8V analog supplies, allowing the analog input to be sampled below ground.

How does the PGA affect the input voltage range?

The PGA provides isolation from the switched capacitor sampling network and enables direct interfacing with high-impedance sources. The input voltage range is limited by the reference voltage divided by the PGA gain.