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

Product Details

Key Features

Applications/Uses

Parametric specs for Operational Amplifiers
Unity Gain BW (MHz) (typ) 1
Input IBIAS (nA) (max) 50
VOS (µV) (max) 1500
VSUPPLY (Total) (V) (min) 2.5
VSUPPLY (Total) (V) (max) 5.5
# Amplifiers 2
Rail to Rail Input/Output
Package/Pins SOIC (N)/8
SOT23/8
UMAX/8
Budgetary
Price (See Notes)
1.06

Simplified Block Diagram

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Parameters

Parametric specs for Operational Amplifiers
Unity Gain BW (MHz) (typ) 1
Input IBIAS (nA) (max) 50
VOS (µV) (max) 1500
VSUPPLY (Total) (V) (min) 2.5
VSUPPLY (Total) (V) (max) 5.5
# Amplifiers 2
Rail to Rail Input/Output
Package/Pins SOIC (N)/8
SOT23/8
UMAX/8
Budgetary
Price (See Notes)
1.06

Key Features

  • 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)

Applications/Uses

  • 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

Description

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. 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.

Simplified Block Diagram

MAX4245, MAX4246, MAX4247: Pin Configurations MAX4245, MAX4246, MAX4247: Pin Configurations 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 .