Overview

Features and Benefits

  • Reduces Power for Sensitive Precision Applications
    • Low 90µA Quiescent Current per Amplifier
  • Eliminates the Cost of Calibration with Increased Accuracy with Maxim’s Patented Autozero Circuitry
    • Very Low Input Voltage Offset 7.5µV (max)
    • Low 30nV/NC Offset Drift (max)
  • Low Noise Ideal for Sensor Interfaces and Transmitters
    • 50nV/√Hz at 1kHz
    • 0.5µVP-P from 0.1Hz to 10Hz
  • 1MHz Gain-Bandwidth Product
    • EMI Suppression Circuitry
  • Rail-to-Rail Output
  • Wide Supply for High-Voltage Front Ends
    • 2.7V to 36V Supply Range
  • µMAX, SO, SOT23, TSSOP Packages

Product Details

The MAX44244/MAX44245/MAX44248 family of parts provide ultra-precision, low-noise, zero-drift single/quad/ dual operational amplifiers featuring very low-power operation with a wide supply range. The devices incorporate a patented auto-zero circuit that constantly measures and compensates the input offset to eliminate drift over time and temperature as well as the effect of 1/f noise. These devices also feature integrated EMI filters to reduce high-frequency signal demodulation on the output. The op amps operate from either a single 2.7V to 36V supply or dual ±1.35V to ±18V supply. The devices are unity-gain stable with a 1MHz gain-bandwidth product and a low 90µA supply current per amplifier.

The low offset and noise specifications and high supply range make the devices ideal for sensor interfaces and transmitters.

The devices are available in µMAX®, SO, SOT23, and TSSOP packages and are specified over the -40°C to +125°C automotive operating temperature range.

Applications

  • 4-20mA and 0 to 10V Transmitters
  • PLC Analog I/O Modules
  • Portable Medical Devices
  • Sensors Interfaces
  • Weight Scales

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (1)

Tools & Simulations

LTspice

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LTspice

Models for the following parts are available in LTspice:

MAX44245

Reference Designs (1)

Product Recommendations

MAX44245 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

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