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MAX44248
Analog Amplifiers MAX44248
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MAX44248

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36V, Precision, Low-Power, 90µA, Single/Quad/Dual Op Amps

Precision, Low-Power Performance in High-Voltage Applications

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Product Details

See parametric specs for Operational Amplifiers

Key Features

Applications/Uses

See parametric specs for Operational Amplifiers

Simplified Block Diagram

Technical Docs

Data Sheet 36V, Precision, Low-Power, 90µA, Single/Quad/Dual Op Amps May 10, 2019
App Note DC Error Budget Calculator Simplifies Selection of Optimal Current-Sense Amplifiers
App Note Passives Aren’t Really So Passive (Part 1): Capacitors
Sub-System Board Monterey (MAXREFDES15#): Ultra-Low Power, High-Accuracy 4–20mA 2-Wire Current-Loop Sensor
App Note Passive Components Aren’t Really So Passive (Part 2): Resistors
App Note Passive Components Aren’t Really So Passive (Part 3): Printed Circuit Boards
App Note PIXI MAX11300 4-20mA Current Control Loop Transmitter

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Key Features

  • 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

Applications/Uses

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

Description

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.

Simplified Block Diagram

MAX44244: Typical Operating Circuit MAX44244: Typical Operating Circuit Zoom icon

Technical Docs

Data Sheet 36V, Precision, Low-Power, 90µA, Single/Quad/Dual Op Amps May 10, 2019
App Note DC Error Budget Calculator Simplifies Selection of Optimal Current-Sense Amplifiers
App Note Passives Aren’t Really So Passive (Part 1): Capacitors
Sub-System Board Monterey (MAXREFDES15#): Ultra-Low Power, High-Accuracy 4–20mA 2-Wire Current-Loop Sensor
App Note Passive Components Aren’t Really So Passive (Part 2): Resistors
App Note Passive Components Aren’t Really So Passive (Part 3): Printed Circuit Boards
App Note PIXI MAX11300 4-20mA Current Control Loop Transmitter

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .