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1.8V, 50MHz, Low-Offset, Low-Power, Rail-to-Rail I/O Op Amp

High Bandwidth and Excellent VOS Accuracy Over Time and Temperature

Product Details

Key Features

Parametric specs for Operational Amplifiers
Unity Gain BW (MHz) (typ) 50
Input IBIAS (nA) (max) 0.00050
VOS (µV) (max) 50
VSUPPLY (Total) (V) (min) 1.7
VSUPPLY (Total) (V) (max) 5.5
# Amplifiers 1
Rail to Rail Input/Output
AV (V/V) 5
Package/Pins SC70/6
ULTRA THIN LGA/6
Budgetary
Price (See Notes)
1.03
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Simplified Block Diagram

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Parameters

Parametric specs for Operational Amplifiers
Unity Gain BW (MHz) (typ) 50
Input IBIAS (nA) (max) 0.00050
VOS (µV) (max) 50
VSUPPLY (Total) (V) (min) 1.7
VSUPPLY (Total) (V) (max) 5.5
# Amplifiers 1
Rail to Rail Input/Output
AV (V/V) 5
Package/Pins SC70/6
ULTRA THIN LGA/6
Budgetary
Price (See Notes)
1.03

Key Features

  • Low 1.8V Supply Rail Over the -40°C to +125°C Range
  • 1.7V Supply Rail Over the 0°C to +70°C Range
  • 50MHz Bandwidth
  • Low 12.7nV/ Input Voltage-Noise Density
  • Low 1.2fA/ Input Current-Noise Density
  • Low 50µV (max) VOS at +25°C
  • 500fA Low Input Bias Current
  • 750µA Quiescent Current per Amplifier
  • < 1µA Supply Current in Shutdown
  • Small, 2mm x 2mm SC70 and 1mm x 1.5mm Thin µDFN Packages
  • Low -110dB Total Harmonic Distortion
  • 5V/V Minimum Stable Gain

Applications/Uses

  • 3G/4G Handsets
  • Analog-to-Digital Converter Buffers
  • Battery-Operated Devices
  • General-Purpose Signal Processing
  • Notebooks
  • Portable Media Players
  • Portable Medical Instruments
  • Transimpedance Amplifiers

Description

The MAX44280 offers a unique combination of high speed, precision, low noise, and low-voltage operation making it ideally suited for a large number of signal processing functions such as filtering and amplification of signals in portable and industrial equipment.

The amplifier features an input offset of less than 50µV and a high-gain bandwidth product of 50MHz while maintaining a low 1.8V supply rail. The device is internally compensated for gains of 5V/V or greater. The device's rail-to-rail input/outputs and low noise guarantee maximum dynamic range in demanding applications such as 12- to 16-bit SAR ADC drivers. Unlike traditional rail-to-rail input structures, input crossover distortion is absent due to an optimized input stage with an ultra-quiet charge pump.

The MAX44280 includes a fast-power-on shutdown mode for further power savings.

The MAX44280 operates from a supply range of 1.8V to 5.5V over the -40°C to +125°C temperature range and can operate down to 1.7V over the 0°C to +70°C temperature range. The MAX44280 is available in a small, 6-pin SC70 package and is also available in a 1mm x 1.5mm thin µDFN (ultra-thin LGA) package.

Simplified Block Diagram

MAX44280: Typical Application Circuit MAX44280: Typical Application 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 .