General Description

The KM4110 (single) and KM4120 (single with disable) are low cost, voltage feedback amplifiers. These amplifiers are 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

■ 505µA supply current

■ 75MHz bandwidth

■ Power down to Is = 33µA (KM4120)

■ Fully specified at +2.7V and +5V supplies

■ Output voltage range: 0.07V to 4.86V; Vs = +5

■ Input voltage range: -0.3V to +3.8V; Vs = +5

■ 50V/µs slew rate

■ ±15mA linear output current

■ ±30mA output short circuit current

■ 12nV/√Hz input voltage noise

■ Directly replaces AD8031 in single supply applications

■ Small package options (SOT23-5 and SOT23-6)

Applications

■ Portable/battery-powered applications

■ A/D buffer

■ Active filters

■ Signal conditioning

■ Portable test instruments