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MAX4245, MAX4246, MAX4247
Ultra-Small, Rail-to-Rail I/O with Disable, Single/Dual-Supply, Low-Power Op Amps


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Status
Active: In Production.

Description
FULL DATA SHEET (PDF, 544kB)
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The MAX4245/MAX4246/MAX4247 family of low-cost op amps offer Rail-to-Rail inputs and outputs, draw only 320µA of quiescent current, and operate from a single +2.5V to +5.5V supply. For additional power conservation, the MAX4245/MAX4247 offer a low-power shutdown mode that reduces supply current to 50nA, and puts the amplifiers' outputs in a high-impedance state. These devices are unity-gain stable with a 1MHz gain-bandwidth product driving capacitive loads up to 470pF.

The MAX4245/MAX4246/MAX4247 family is specified from -40°C to +125°C, making them suitable for use in a variety of harsh environments, such as automotive applications. The MAX4245 single amplifier is available in ultra-small 6-pin SC70 and space-saving 6-pin SOT23 packages. The MAX4246 dual amplifier is available in 8-pin, SO, SOT23 and µMAX® packages. The MAX4247 dual amplifier comes in a tiny 10-pin µMAX package.

Key Features   Applications/Uses
  • Rail-to-Rail Input and Output Voltage Swing
  • 50nA (max) Shutdown Mode (MAX4245/MAX4247)
  • 320µA (typ) Quiescent Current Per Amplifier
  • Single +2.5V to +5.5V Supply Voltage Range
  • 110dB Open-Loop Gain with 2kΩ Load
  • 0.01% THD with 100kΩ Load
  • Unity-Gain Stable up to CLOAD = 470pF
  • No Phase Inversion for Overdriven Inputs
  • Available in Space-Saving Packages
    • 6-Pin SC70 or 6-Pin SOT23 (MAX4245)
    • 8-Pin SOT23/SO or 8-Pin µMAX (MAX4246)
    • 10-Pin µMAX (MAX4247)

 
  • Automotive Sensors
  • Base Station/Wireless Infrastructure
  • Computers: Desktops, Workstations, and Servers
  • Computers: Motherboards
  • Computers: Notebook
  • Electronic Ignition Modules
  • GPS Solutions
  • Infrared Receivers
  • Instruments and Terminals
  • MP3 Docking Stations: Mid Level
  • Portable Communications
  • Programmable Logic Controllers (PLCs)
  • Sensor-Signal Detection
  • Set-Top Boxes
  • Single-Supply Zero-Crossing Detectors

    Key Specifications:  Operational Amplifiers
    Part Number Amps. Rail to Rail AVCL VSUPPLY (Total)
    (V)
    VSUPPLY (Total)
    (V)
    ICC per Amp.
    (µA)
    ICC per Amp.
    (µA)
    VOS
    (µV)
    CMRR @DC
    (dB)
    PSRR @DC
    (dB)
    Input IBIAS
    (nA)
    Unity Gain BW
    (MHz)
    Slew Rate
    (V/µs)
    en
    (nV/√Hz)
    in
    (pA/√Hz)
    Low Pwr. Shutdn Package/Pins Price
    min min max typ max max typ typ max typ typ See Notes
    MAX4245  1 Input/Output 1 2.5 5.5 375 700 1500 60 70 50 1 0.4 52 0.1 Yes
    SC70/6
    SOT/6
    $0.36 @1k
    MAX4246  2 No
    µMAX/8
    SOIC(N)/8
    SOT/8
    $0.57 @1k
    MAX4247  2 Yes
    µMAX/10
    $0.58 @1k
    See All Operational Amplifiers (145)

    Diagram
    MAX4245, MAX4246, MAX4247: Pin Configurations
    Pin Configurations

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    Document Ref.: 19-2016; Rev 1; 2005-06-17
    This page last modified: 2009-07-15


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