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10MHz/42MHz Low-Noise, Low-Bias Op Amps

Combination of High-Speed, Very Low Noise and Tiny Size Makes these AMPS Great for Precision Applications

Product Details

The MAX40075/MAX40088 are wideband, low-noise, low-input bias current operational amplifiers offering rail-to-rail outputs and single-supply operation down to 2.7V. They draw 2.2mA of quiescent supply current per amplifier when enabled and have ultra-low distortion (0.0002% THD+N), as well as low input voltage-noise density (4.2nV/) and low input current-noise density (0.5fA/). The low input bias current and low noise together with the wide bandwidth suit transimpedance amplifiers and imaging applications.

For power conservation, the MAX40075/MAX40088 offer a low-power shutdown mode that reduces supply current to 0.1µA and places the amplifiers outputs into a high impedance state. These amplifiers have outputs which swing rail-to-rail and their input common-mode voltage range includes ground. The MAX40075 is unity-gain stable with a gain-bandwidth product of 10MHz. The MAX40088 is gain-of-5 stable with a gain-bandwidth product of 42MHz.

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Key Features

  • Low Input Voltage-Noise Density: 4.2nV/√Hz at 30kHz
  • Low Input Current-Noise Density: 0.5fA/√Hz
  • Low Input Bias Current: <1pA (typ)
  • Low Distortion: 0.00035% or -109dB THD+N (1kΩ Load)
  • Single-Supply Operation from +2.7V to +5.5V
  • Input Common-Mode Voltage Range Includes Ground
  • Rail-to-Rail Output Swings with a 1kΩ Load
  • 10MHz GBW Product, Unity-Gain Stable (MAX40075 only)
  • 42MHz GBW Product, Gain ≥ 5V/V (MAX40088 Only)
  • Excellent DC Characteristics: Input VOS ≤ 30µV
  • Low-Power Shutdown Mode: Reduces Supply Current to ≤1µA
  • Available in Space-Saving 6-Bump WLP and 6-Pin SOT23 Packages
  • AEC-Q100 Qualified. See Ordering Information

Applications/Uses

  • ADC Buffers
  • Automotive Power Train
  • DAC Output Amplifiers
  • Digital Scales
  • Low-Noise Microphone/Preamplifiers
  • Medical Instrumentation
  • Strain Gauges/Sensor Amplifiers
  • Transimpedance Amplifiers
Parametric specs for Operational Amplifiers
Unity Gain BW (MHz) (typ) 10
Input IBIAS (nA) (max) 2.3
VOS (µV) (max) 150
VSUPPLY (Total) (V) (min) 2.7
VSUPPLY (Total) (V) (max) 5.5
# Amplifiers 1
Rail to Rail Output Only
Package/Pins SOT23/6
THIN WLP/6
Budgetary
Price (See Notes)
$0.90 @1k
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Simplified Block Diagram

MAX40075, MAX40088: Functional Diagrams MAX40075, MAX40088: Functional Diagrams Zoom icon

Technical Docs

Data Sheet 10MHz/42MHz Low-Noise, Low-Bias Op Amps Nov 16, 2020

Design & Development

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Description

The MAX40088 evaluation kit (EV kit) is a fully assembled and tested circuit board that contains all the components necessary to evaluate the MAX40075/ MAX40088/MAX40079/MAX40087 ICs. The MAX40088 EV kit printed circuit board (PCB) comes installed with MAX40088AUT+ in 6-SOT23 package.

The device is a rail-to-rail output op amp offering 10MHz Gain Bandwidth product (MAX40075/MAX40079) and 42MHz Gain Bandwidth product (MAX40088/MAX40087). The EV kit operates from a single 2.7V to 5.5V DC power supply or from ±1.35V to ±2.75V split supply.

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Features

  • +2.7V to +5.5V Supply Voltage Range across VDD and VSS
  • 42MHz Gain Bandwidth Product (MAX40088/MAX40087), Gain = 5V/V Stable
  • 10MHz Gain Bandwidth Product (MAX40075/MAX40079), Gain = 1V/V Stable
  • Ultra-Low Distortion (0.0002% with 1kΩ load)
  • Proven PCB Layout
  • Fully Assembled and Tested

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SIMULATION MODELS

MAX40075 Orcad Library

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Parameters

Parametric specs for Operational Amplifiers
Unity Gain BW (MHz) (typ) 10
Input IBIAS (nA) (max) 2.3
VOS (µV) (max) 150
VSUPPLY (Total) (V) (min) 2.7
VSUPPLY (Total) (V) (max) 5.5
# Amplifiers 1
Rail to Rail Output Only
Package/Pins SOT23/6
THIN WLP/6
Budgetary
Price (See Notes)
$0.90 @1k

Key Features

  • Low Input Voltage-Noise Density: 4.2nV/√Hz at 30kHz
  • Low Input Current-Noise Density: 0.5fA/√Hz
  • Low Input Bias Current: <1pA (typ)
  • Low Distortion: 0.00035% or -109dB THD+N (1kΩ Load)
  • Single-Supply Operation from +2.7V to +5.5V
  • Input Common-Mode Voltage Range Includes Ground
  • Rail-to-Rail Output Swings with a 1kΩ Load
  • 10MHz GBW Product, Unity-Gain Stable (MAX40075 only)
  • 42MHz GBW Product, Gain ≥ 5V/V (MAX40088 Only)
  • Excellent DC Characteristics: Input VOS ≤ 30µV
  • Low-Power Shutdown Mode: Reduces Supply Current to ≤1µA
  • Available in Space-Saving 6-Bump WLP and 6-Pin SOT23 Packages
  • AEC-Q100 Qualified. See Ordering Information

Applications/Uses

  • ADC Buffers
  • Automotive Power Train
  • DAC Output Amplifiers
  • Digital Scales
  • Low-Noise Microphone/Preamplifiers
  • Medical Instrumentation
  • Strain Gauges/Sensor Amplifiers
  • Transimpedance Amplifiers

Description

The MAX40075/MAX40088 are wideband, low-noise, low-input bias current operational amplifiers offering rail-to-rail outputs and single-supply operation down to 2.7V. They draw 2.2mA of quiescent supply current per amplifier when enabled and have ultra-low distortion (0.0002% THD+N), as well as low input voltage-noise density (4.2nV/) and low input current-noise density (0.5fA/). The low input bias current and low noise together with the wide bandwidth suit transimpedance amplifiers and imaging applications.

For power conservation, the MAX40075/MAX40088 offer a low-power shutdown mode that reduces supply current to 0.1µA and places the amplifiers outputs into a high impedance state. These amplifiers have outputs which swing rail-to-rail and their input common-mode voltage range includes ground. The MAX40075 is unity-gain stable with a gain-bandwidth product of 10MHz. The MAX40088 is gain-of-5 stable with a gain-bandwidth product of 42MHz.

Mobile App

Simplified Block Diagram

MAX40075, MAX40088: Functional Diagrams MAX40075, MAX40088: Functional Diagrams Zoom icon

Technical Docs

Data Sheet 10MHz/42MHz Low-Noise, Low-Bias Op Amps Nov 16, 2020

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