1.8V, 15MHz Low-Offset, Low-Power, Rail-to-Rail I/O Op Amps

On-Demand Calibration Provides Accuracy Over Time and Temperature

Please check latest availability status for a specific part variant.


The MAX44259/MAX44260/MAX44261/MAX44263 offer a unique combination of high speed, precision, low noise, and low-voltage operation making them ideally suited for a large number of signal processing functions such as filtering and amplification of signals in portable and industrial equipment.

The devices’ rail-to-rail input/outputs and low noise guarantee maximum dynamic range in demanding applications such as 12- to 14-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 MAX44260 includes a fast-power-on shutdown mode for further power savings. The MAX44261 offers a unique on-demand calibration pin where the user can invoke self-trimming of the input offset voltage. The MAX44263 is a dual amplifier.

The family of parts 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 MAX44259 is offered in a 5-pin SOT23 package. The MAX44260/MAX44261 are available in small, 6-pin SC70 packages. The MAX44260 is also available in a 1mm x 1.5mm thin µDFN (ultra-thin LGA)package. The MAX44263 is available in a small 8-pin SC70 package.

Design Solution: Amplifier Extends the Battery Life of Your Heart Rate Monitor ›

MAX44260, MAX44261: Typical Application Circuit MAX44260, MAX44261: Typical Application Circuit Enlarge+

Key Features

  • Low Noise for Higher System Accuracy
    • 12.7nV/√Hz Input Voltage-Noise Density
    • 1.2fA/√Hz Input Current-Noise Density
    • 50µV (max) VOS at +25°C
    • 110dB Total Harmonic Distortion
  • 15MHz Unity-Gain Bandwidth Enables for High-Bandwidth Applications
  • Low Power Extends the Battery Life of Portable Equipment
    • 500fA Low Input Bias Current
    • 750µA Quiescent Current per Amplifier
    • < 1µA Supply Current in Shutdown
  • On-Demand VOS Self-Calibration (MAX44261)
  • Saves Board Space
    • Small, 2mm x 2mm SC70 and 1mm x 1.5mm Thin µDFN (MAX44260) and SOT23 (MAX44259) Packages
  • Wide Supply Range from 1.8V to 5.5V Simplifies Power-Supply Requirements


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

See parametric specs for Operational Amplifiers (175)

Part NumberAmps.Rail to RailICC per Amp.
Low Input Bias CMOS InputsInput IBIAS
Unity Gain BW
Slew Rate
typminmaxmaxtyptypmaxtyptyp<See Notes
MAX44259 1Input/Output7501.75.58009095Yes0.0005157-
$0.66 @1k
MAX44260 17505012.7
SOIC (N)/8
$0.68 @1k
MAX44261 17505012.7
SOIC (N)/8
$0.68 @1k
MAX44263 26505012.7
$1.12 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX44260EVKIT: Evaluation Kit for the MAX44260
Request Reliability Report for: MAX44261 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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