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UCSP, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps

Product Details

The MAX4249–MAX4257 low-noise, low-distortion operational amplifiers offer rail-to-rail outputs and single-supply operation down to 2.4V. They draw 400µA of quiescent supply current per amplifier while featuring ultra-low distortion (0.0002% THD), as well as low input voltage-noise density (7.9nV/) and low input current-noise density (0.5fA/). These features make the devices an ideal choice for portable/battery-powered applications that require low distortion and/or low noise.

For additional power conservation, the MAX4249/MAX4251/MAX4253/MAX4256 offer a low-power shutdown mode that reduces supply current to 0.5µA and puts the amplifiers' outputs into a high-impedance state. The MAX4249–MAX4257's outputs swing rail-to-rail and their input common-mode voltage range includes ground. The MAX4250–MAX4254 are unity-gain stable with a gain-bandwidth product of 3MHz. The MAX4249/MAX4255/MAX4256/MAX4257 are internally compensated for gains of 10V/V or greater with a gain-bandwidth product of 22MHz. The single MAX4250/MAX4255 are available in space-saving 5-pin SOT23 packages. The MAX4252 is available in an 8-bump chip-scale package (UCSP) and the MAX4253 is available in a 10-bump UCSP. The MAX4250AAUK comes in a 5-pin SOT23 package and is specified for operation over the automotive (-40°C to +125°C) temperature range.

Key Features

  • Available in Space-Saving UCSP, SOT23, and µMAX® Packages
  • Low Distortion: 0.0002% THD (1kΩ load)
  • 400µA Quiescent Supply Current per Amplifier
  • Single-Supply Operation from 2.4V to 5.5V
  • Input Common-Mode Voltage Range Includes Ground
  • Outputs Swing Within 8mV of Rails with a 10kΩ Load
  • 3MHz GBW Product, Unity-Gain Stable (MAX4250-MAX4254)
  • 22MHz GBW Product, Stable with AV ≥ 10V/V (MAX4249/MAX4255/MAX4256/MAX4257)
  • Excellent DC Characteristics
    • VOS = 70µV
    • IBIAS = 1pA
    • Large-Signal Voltage Gain = 116dB
  • Low-Power Shutdown Mode
    • Reduces Supply Current to 0.5µA
    • Places Outputs in a High-Impedance State
  • 400pF Capacitive-Load Handling Capability

Applications/Uses

  • ADC Buffers
  • Automatic Test Equipment (ATE)
  • Cardiac Monitor
  • Digital Scales/Strain Gauges
  • Displays: Industrial, Front Panel, and Instrumentation
  • Industrial: Process Measurement and Control
  • Medical Instrumentation
  • PA Control
  • Panel Meters
  • Portable Battery-Powered Equipment
  • Power Meters
  • Programmable Logic Controllers (PLCs)
  • Wireless Communications Devices
Parametric specs for Operational Amplifiers
Unity Gain BW (MHz) (typ) 3
Input IBIAS (nA) (max) 0.1
VOS (µV) (max) 750
VSUPPLY (Total) (V) (min) 2.4
VSUPPLY (Total) (V) (max) 5.5
# Amplifiers 1
Rail to Rail Output Only
Package/Pins SOT23/5
Budgetary
Price (See Notes)
$1.36 @1k
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Simplified Block Diagram

MAX4249, MAX4250, MAX4251, MAX4252, MAX4253, MAX4254, MAX4255, MAX4256, MAX4257: Typical Operating Circuit MAX4249, MAX4250, MAX4251, MAX4252, MAX4253, MAX4254, MAX4255, MAX4256, MAX4257: Typical Operating Circuit Zoom icon

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Parameters

Parametric specs for Operational Amplifiers
Unity Gain BW (MHz) (typ) 3
Input IBIAS (nA) (max) 0.1
VOS (µV) (max) 750
VSUPPLY (Total) (V) (min) 2.4
VSUPPLY (Total) (V) (max) 5.5
# Amplifiers 1
Rail to Rail Output Only
Package/Pins SOT23/5
Budgetary
Price (See Notes)
$1.36 @1k

Key Features

  • Available in Space-Saving UCSP, SOT23, and µMAX® Packages
  • Low Distortion: 0.0002% THD (1kΩ load)
  • 400µA Quiescent Supply Current per Amplifier
  • Single-Supply Operation from 2.4V to 5.5V
  • Input Common-Mode Voltage Range Includes Ground
  • Outputs Swing Within 8mV of Rails with a 10kΩ Load
  • 3MHz GBW Product, Unity-Gain Stable (MAX4250-MAX4254)
  • 22MHz GBW Product, Stable with AV ≥ 10V/V (MAX4249/MAX4255/MAX4256/MAX4257)
  • Excellent DC Characteristics
    • VOS = 70µV
    • IBIAS = 1pA
    • Large-Signal Voltage Gain = 116dB
  • Low-Power Shutdown Mode
    • Reduces Supply Current to 0.5µA
    • Places Outputs in a High-Impedance State
  • 400pF Capacitive-Load Handling Capability

Applications/Uses

  • ADC Buffers
  • Automatic Test Equipment (ATE)
  • Cardiac Monitor
  • Digital Scales/Strain Gauges
  • Displays: Industrial, Front Panel, and Instrumentation
  • Industrial: Process Measurement and Control
  • Medical Instrumentation
  • PA Control
  • Panel Meters
  • Portable Battery-Powered Equipment
  • Power Meters
  • Programmable Logic Controllers (PLCs)
  • Wireless Communications Devices

Description

The MAX4249–MAX4257 low-noise, low-distortion operational amplifiers offer rail-to-rail outputs and single-supply operation down to 2.4V. They draw 400µA of quiescent supply current per amplifier while featuring ultra-low distortion (0.0002% THD), as well as low input voltage-noise density (7.9nV/) and low input current-noise density (0.5fA/). These features make the devices an ideal choice for portable/battery-powered applications that require low distortion and/or low noise.

For additional power conservation, the MAX4249/MAX4251/MAX4253/MAX4256 offer a low-power shutdown mode that reduces supply current to 0.5µA and puts the amplifiers' outputs into a high-impedance state. The MAX4249–MAX4257's outputs swing rail-to-rail and their input common-mode voltage range includes ground. The MAX4250–MAX4254 are unity-gain stable with a gain-bandwidth product of 3MHz. The MAX4249/MAX4255/MAX4256/MAX4257 are internally compensated for gains of 10V/V or greater with a gain-bandwidth product of 22MHz. The single MAX4250/MAX4255 are available in space-saving 5-pin SOT23 packages. The MAX4252 is available in an 8-bump chip-scale package (UCSP) and the MAX4253 is available in a 10-bump UCSP. The MAX4250AAUK comes in a 5-pin SOT23 package and is specified for operation over the automotive (-40°C to +125°C) temperature range.

Simplified Block Diagram

MAX4249, MAX4250, MAX4251, MAX4252, MAX4253, MAX4254, MAX4255, MAX4256, MAX4257: Typical Operating Circuit MAX4249, MAX4250, MAX4251, MAX4252, MAX4253, MAX4254, MAX4255, MAX4256, MAX4257: Typical Operating Circuit Zoom icon

Technical Docs

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