MAX4281
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MAX4281

SOT23, Rail-to-Rail, Fixed-Gain GainAmps/Open-Loop Op Amps

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $1.63
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
Additional Details
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The MAX4174/MAX4175/MAX4274/MAX4275 GainAmp family combines a low-cost rail-to-rail op amp with precision internal gain-setting resistors and VCC/2 biasing. Factory-trimmed on-chip resistors decrease design size, cost, and layout, and provide 0.1% gain accuracy. Fixed inverting gains from -0.25V/V to -100V/V or noninverting gains from +1.25V/V to +101V/V are available. These devices operate from a single +2.5V to +5.5V supply and consume only 300µA. GainAmp amplifiers are optimally compensated for each gain version, achieving exceptional GBW products up to 23MHz (AV = +25V/V to +101V/V). High-voltage fault protection withstands µ17V at either input without excessive current draw.

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.

Applications

  • 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
Part Models 2
1ku List Price Starting From $1.63

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX4281EUK+
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Product Lifecycle

PCN

Jul 3, 2023

- 2361NA

WAFER FAB

MAX4281EUK+

PRODUCTION

MAX4281EUK+T

PRODUCTION

Jan 11, 2021

- 1703RN

ASSEMBLY

MAX4281EUK+

PRODUCTION

Feb 4, 2015

- 1341_CANCELLATION

ASSEMBLY

MAX4281EUK+

PRODUCTION

MAX4281EUK+T

PRODUCTION

Jun 29, 2018

- 1703N

ASSEMBLY

MAX4281EUK+T

PRODUCTION

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Part Models

Product Lifecycle

PCN

Jul 3, 2023

- 2361NA

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WAFER FAB

MAX4281EUK+

PRODUCTION

MAX4281EUK+T

PRODUCTION

Jan 11, 2021

- 1703RN

arrow down

ASSEMBLY

MAX4281EUK+

PRODUCTION

Feb 4, 2015

- 1341_CANCELLATION

arrow down

ASSEMBLY

MAX4281EUK+

PRODUCTION

MAX4281EUK+T

PRODUCTION

Jun 29, 2018

- 1703N

arrow down

ASSEMBLY

MAX4281EUK+T

PRODUCTION

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