General Description
The KM4111 (single) and KM4121 (single with disable) are ultra-low power, low cost, voltage feedback amplifiers. These amplifiers use only 208µA of supply current and 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.
The KM4111 offers high bipolar performance at a low CMOS price. The KM4111 offers superior dynamic performance with a 35MHz small signal bandwidth and 27V/µs slew rate. The combination of lowpower, high bandwidth, and rail-to-rail performance make the KM4111 well suited for battery-powered communication/computing systems.
Features
â 208µA supply current
â 35MHz bandwidth
â Power down to Is = 35µA (KM4121)
â Fully specified at +2.7V and +5V supplies
â Output voltage range: 0.08V to 4.88V; Vs = +5
â Input voltage range: -0.3V to +3.8V; Vs = +5
â 27V/µs slew rate
â ±8.5mA linear output current
â ±13mA short circuit output current
â 21nV/âHz input voltage noise
â Directly replaces MAX4281
â Small package options (SOT23-5 and SOT23-6)
Applications
â Portable/battery-powered applications
â A/D buffer
â Active filters
â Signal conditioning
â Portable test instruments
|