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36V, Low-Noise, Precision, Single/Quad/Dual Op Amps

Precision, Low-Noise Performance in High-Voltage Applications

Product Details

The MAX44241/MAX44243/MAX44246 are 36V, ultra- precision, low-noise, low-drift, single/quad/dual opera- tional amplifiers that offer near-zero DC offset and drift through the use of patented chopper stabilized and auto-zeroing techniques. This method constantly mea- sures and compensates the input offset, eliminating drift over time and temperature and the effect of 1/f noise. These single/quad/dual devices feature rail-to-rail out- puts, operate from a single 2.7V to 36V supply or dual ±1.35V to ±18V supplies, and consume only 0.42mA per channel, with only 9nV/√Hz input-referred voltage noise.

The ICs are available in 8-pin µMAX® or SO packages and are rated over the -40°C to +125°C temperature range.

Key Features

  • Reduces Noise-Sensitive Precision Applications
    • Low 9nV/√Hz Noise at 1kHz
    • Integrated EMI Filter
  • Eliminates Cost of Calibration with Increased Accuracy and Patented Auto-Zero Circuitry
    • Ultra-Low Input VOS: 5µV (max)
    • Low 20nV/°C (max) of Offset Drift
  • Suitable for High-Bandwidth Applications
    • 1µs Fast Settling Time
    • 5MHz Gain-Bandwidth Product
  • Low 0.55mA Per Channel (max) Quiescent Current
  • Wide Supply for High-Voltage Front-Ends
    • 2.7V to 36V Supply Range
  • Rail-to-Rail Output

Applications/Uses

  • Battery-Powered Equipment
  • Load Cell Amplifiers
  • PLC Analog I/O Modules
  • Precision Instrumentation
  • Transducer Amplifiers
Parametric specs for Operational Amplifiers (Op Amps)
Unity Gain BW (MHz) (typ) 5
Input IBIAS (nA) (max) 0.6
VOS (µV) (max) 5
VSUPPLY (Total) (V) (min) 2.7
VSUPPLY (Total) (V) (max) 36
# Amplifiers 2
Rail to Rail Output Only
Package/Pins SOIC (N)/8
UMAX/8
Budgetary
Price (See Notes)
$1.64 @1k
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Simplified Block Diagram

MAX44246: Typical Operating Circuit MAX44246: Typical Operating Circuit Zoom icon

Design & Development

Click any title below to view the detail page where available.

Description

The MAX44246 evaluation kit (EV kit) provides a proven design to evaluate the MAX44246 ultra-precision, low-noise, low-drift dual-operational amplifiers (op amps) in an 8-pin µMAX® package. The EV kit circuit is preconfigured as noninverting amplifiers, but can be adapted to other topologies by changing a few components.
The EV kit comes with a MAX44246AUA+ installed.

View Details

Features

  • Accommodates Multiple Op-Amp Configurations
  • Component Pads Allow for Sallen-Key Filter
  • Accommodates Easy-to-Use Components
  • Proven PCB Layout
  • Fully Assembled and Tested

/en/design/design-tools/ee-sim.html?

SIMULATION MODELS

MAX44246 Macromodel

Download

SIMULATION MODELS

MAX44246 Orcad Library

Download

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.

Parameters

Parametric specs for Operational Amplifiers (Op Amps)
Unity Gain BW (MHz) (typ) 5
Input IBIAS (nA) (max) 0.6
VOS (µV) (max) 5
VSUPPLY (Total) (V) (min) 2.7
VSUPPLY (Total) (V) (max) 36
# Amplifiers 2
Rail to Rail Output Only
Package/Pins SOIC (N)/8
UMAX/8
Budgetary
Price (See Notes)
$1.64 @1k

Key Features

  • Reduces Noise-Sensitive Precision Applications
    • Low 9nV/√Hz Noise at 1kHz
    • Integrated EMI Filter
  • Eliminates Cost of Calibration with Increased Accuracy and Patented Auto-Zero Circuitry
    • Ultra-Low Input VOS: 5µV (max)
    • Low 20nV/°C (max) of Offset Drift
  • Suitable for High-Bandwidth Applications
    • 1µs Fast Settling Time
    • 5MHz Gain-Bandwidth Product
  • Low 0.55mA Per Channel (max) Quiescent Current
  • Wide Supply for High-Voltage Front-Ends
    • 2.7V to 36V Supply Range
  • Rail-to-Rail Output

Applications/Uses

  • Battery-Powered Equipment
  • Load Cell Amplifiers
  • PLC Analog I/O Modules
  • Precision Instrumentation
  • Transducer Amplifiers

Description

The MAX44241/MAX44243/MAX44246 are 36V, ultra- precision, low-noise, low-drift, single/quad/dual opera- tional amplifiers that offer near-zero DC offset and drift through the use of patented chopper stabilized and auto-zeroing techniques. This method constantly mea- sures and compensates the input offset, eliminating drift over time and temperature and the effect of 1/f noise. These single/quad/dual devices feature rail-to-rail out- puts, operate from a single 2.7V to 36V supply or dual ±1.35V to ±18V supplies, and consume only 0.42mA per channel, with only 9nV/√Hz input-referred voltage noise.

The ICs are available in 8-pin µMAX® or SO packages and are rated over the -40°C to +125°C temperature range.

Simplified Block Diagram

MAX44246: Typical Operating Circuit MAX44246: Typical Operating Circuit Zoom icon

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.