General Description

The MAX4165–MAX4169 family of operational amplifiers combines excellent DC accuracy with high output current drive, single-supply operation, and rail-to-rail inputs and outputs. These devices operate from a single +2.7V to +6.5V supply, or from dual ±1.35V to ±3.25V supplies. They typically draw 1.2mA supply current, and are guaranteed to deliver 80mA output current.

The MAX4166/MAX4168 have a shutdown mode that reduces supply current to 38μA per amplifier and places the outputs into a high-impedance state. The MAX4165–MAX4169’s precision performance combined with high output current, wide input/output dynamic range, single-supply operation, and low power consumption makes them ideal for portable audio applications and other low-voltage, battery-powered systems. The MAX4165 is available in the space-saving 5-pin SOT23 package and the MAX4166 is available in a tiny 2mm x 2mm x 0.8mm μDFN package.

Features

? 80mA (min) Output Drive Capability

? Rail-to-Rail Input Common-Mode Voltage Range

? Rail-to-Rail Output Voltage Swing

? 1.2mA Supply Current per Amplifier

? +2.7V to +6.5V Single-Supply Operation

? 5MHz Gain-Bandwidth Product

? 250μV Offset Voltage

? 120dB Voltage Gain (RL = 100kΩ)

? 88dB Power-Supply Rejection Ratio

? No Phase Reversal for Overdriven Inputs

? Unity-Gain Stable for Capacitive Loads to 250pF

? Low-Power Shutdown Mode:

Reduces Supply Current to 38μA Places

Outputs in High-Impedance State

? Available in 5-Pin SOT23 Package (MAX4165) or

2mm x 2mm x 0.8mm μDFN (MAX4166)

Applications

Portable/Battery-Powered Audio Applications

Portable Headphone Speaker Drivers

Laptop/Notebook Computers

Sound Ports/Cards

Set-Top Boxes

Cell Phones

Hands-Free Car Phones (kits)

Signal Conditioning

Digital-to-Analog Converter Buffers

Transformer/Line Drivers

Motor Drivers