Dual, Low Cost, +2.7V and +5V, Rail-to-Rail I/O Amplifier

General Description
The KM4270 is a dual ultra-low cost, low power, voltage feedback amplifier. At 5V, the KM4270 uses only 160µA of supply current per amplifier and is designed to operate from a supply range of 2.5V to 5.5V. The input voltage range exceeds the negative and positive rails. The KM4170 (single) and KM4470 (quad) are also available.

FEATUREs at 2.7V
■ 160µA supply current per amplifier
■ 4.9MHz bandwidth
■ Output swings to within 20mV of either rail
■ Input voltage range exceeds the rail by >250mV
■ 5.3V/µs slew rate
■ 35mA short circuit output current
■ 24nV/√Hz input voltage noise
■ Directly replaces MAX4126, OPA2340, LMV822, and TLV2462 in single supply applications
■ Available in SOIC and MSOP package options

APPLICATIONs
■ Portable/battery-powered applications
■ PCMCIA, USB
■ Mobile communications, cellular phones, pagers
■ Notebooks and PDA’s
■ Sensor Interface
■ A/D buffer
■ Active filters
■ Signal conditioning
■ Portable test instruments