Product Details
Key Features
Applications/Uses
Simplified Block Diagram
Technical Docs
Data Sheet | SOT23, Rail-to-Rail, Fixed-Gain GainAmps/Open-Loop Op Amps | Aug 01, 1999 | |
App Note | Fixed-Gain Op Amps Simplify Filter Design |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.
Key Features
- GainAmp Family Provides Internal Precision Gain-Setting Resistors in SOT23 (MAX4174/5)
- 0.1% Gain Accuracy (RF/RG) (MAX4174/5, MAX4274/5)
- 54 Standard Gains Available (MAX4174/5, MAX4274/5)
- Open-Loop Unity-Gain-Stable Op Amps (MAX4281/2/4)
- Rail-to-Rail Outputs Drive 1kΩ Load
- Internal VCC/2 Biasing (MAX4175/MAX4275)
- +2.5V to +5.5V Single Supply
- 300µA Supply Current
- Up to 23MHz GBW Product
- Fault-Protected Inputs Withstand ±17V
- Stable with Capacitive Loads Up to 470pF with No Isolation Resistor
Applications/Uses
- Cellular Handsets
- Digital Cameras (DIGICAMs)
- Glucose Meters
- GPS Solutions
- Infrared Receivers for Remote Controls
- Instruments, Terminals, and Bar-Code Readers
- IP Camera
- Keyless Entry
- Low-Side Current-Sense Amplifiers
- MP3 and Portable Media Players
- Photodiode Preamps
- Portable Instruments
- Smart-Card Readers
Description
Three versions are available in this amplifier family: single/dual/quad open-loop, unity-gain stable (MAX4281/MAX4282/MAX4284); single/dual fixed gain (MAX4174/MAX4274); and single/dual fixed gain plus internal VCC/2 bias at the noninverting input (MAX4175/MAX4275), which simplifies input biasing in single-supply designs. The input common-mode voltage range of the open-loop amplifiers extends from 150mV below the negative supply to within 1.2V of the positive supply. The outputs can swing rail-to-rail and drive a 1kΩ load while maintaining excellent DC accuracy. The amplifier is stable for capacitive loads up to 470pF.
Simplified Block Diagram
MAX4174, MAX4175, MAX4274, MAX4275, MAX4281, MAX4282, MAX4284: Typical Operating Circuit
Technical Docs
Data Sheet | SOT23, Rail-to-Rail, Fixed-Gain GainAmps/Open-Loop Op Amps | Aug 01, 1999 | |
App Note | Fixed-Gain Op Amps Simplify Filter Design |
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.