MAX4289

PRODUCTION

1.0V Micropower, SOT23, Operational Amplifier

Industry's First +1V Micropower SOT23 Op Amp

Data Sheet (Rev. 0) Product Selection Table
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Overview

  • Ultra-Low Voltage Operation: Guaranteed Specifications from 1.0V to 5.5V
  • Input Common-Mode Range: 0 to (VCC - 0.2V)
  • Ultra-Low Power Consumption: 9µA Supply Current (typ)
  • Optimized for Operation from Single-Cell Battery-Powered Systems
  • Compatible with 3.0V and 5.0V Single-Supply Systems
  • Low Offset Voltage: 0.2mV
  • Low Input Bias Current: 5nA
  • High Open-Loop Voltage Gain: 90dB
  • Rail-to-Rail Output Stage Drives 5kΩ Load
  • No Output Phase Reversal for Overdriven Inputs
  • Available in a Tiny 6-Pin SOT23 (3mm x 3mm)

The MAX4289 micropower, operational amplifier is optimized for ultra-low supply voltage operation. The amplifier consumes only 9µA of quiescent supply current and is fully specified for operation from a single 1.0V to 5.5V power supply. This ultra-low voltage operation together with the low quiescent current consumption make the MAX4289 ideal for use in battery-powered systems operated from as little as a single alkaline cell. The MAX4289 also features a wide input common-mode range that includes the ground, and an output voltage swing that is virtually rail-to-rail, allowing almost all of the power supply to be used for signal voltage.

The low input offset voltage and low input bias current specifications along with the high open-loop gain make the MAX4289 well-suited to applications requiring a high degree of precision.

The MAX4289 is available in a tiny 6-pin SOT23 package. All specifications are guaranteed over the extended temperature range of -40°C to +85°C.

Applications

  • Air Battery
  • Battery-Powered Instrumentation
  • Cellular Handsets
  • Cellular Phones
  • Digital Cameras (DIGICAMs)
  • Glucose Meters
  • GPS Solutions
  • Hearing Aids Using Zinc
  • IP Camera
  • MP3 and Portable Media Players
  • Notebook Computers
  • Portable Communication Devices
  • Portable Electronic Equipment
  • Sensor Amplifiers
  • Single-Cell Systems
  • Strain Gauges
MAX4289
1.0V Micropower, SOT23, Operational Amplifier
MAX4289: Pin Configurations
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Documentation

Data Sheet 1

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Comparators 1
MAX9101
PRODUCTION +1.0V Micropower SOT23 Comparators
Operational Amplifiers (Op Amps) 3
MAX4291
PRODUCTION Ultra-Small, +1.8V, µPower, Rail-to-Rail I/O Op Amps
MAX4040
PRODUCTION Single/Dual/Quad, Low-Cost, SOT23, Micropower Rail-to-Rail I/O Op Amps
MAX406
PRODUCTION Single, Dual, Quad, 1.2µA Max, Single-Supply Op Amps
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Tools & Simulations

SPICE Model 1

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