General Description
The KM4112 is an ultra-low power, low cost, voltage feedback amplifier. The KM4112 uses only 70µA of supply current and is designed to operate on +2.7V, +5V, or ±2.5V supplies. The input voltage range extends 300mV below the negative rail and 1.2V below the positive rail.

Features
■ 70µA supply current
■ 7.3MHz bandwidth
■ Fully specified at +2.7V and +5V supplies
■ Output voltage range: 0.04V to 4.96V; Vs = +5
■ Input voltage range: -0.3V to +3.8V; Vs = +5
■ 9V/µs slew rate
■ ±4mA linear output current
■ ±9mA short circuit output current
■ 29nV/√Hz input voltage noise
■ Competes with low power CMOS amps
■ Small package option (SOT23-5)

Applications
■ Portable/battery-powered applications
■ A/D buffer
■ Active filters
■ Signal conditioning
■ Portable test instruments