1.0V Micropower, SOT23, Operational Amplifier

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

* 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)