KM4111

www.fairchildsemi.com KM4111/KM4121 0.2mA, Low Cost, +2.7V & +5V, 35MHz Rail-to-Rail Amplifiers Features I I I I I I I I I I I I 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. 208µA supply current 35MHz bandwidth Power down to Is = 35µA (KM4121) Fully specified at +2.7V and +5V supplies Output voltage range: 0.08V to 4.88V; Vs = +5 Input voltage range: -0.3V to +3.8V; Vs = +5 27V/µs slew rate ±8.5mA linear output current ±13mA short circuit output current 21nV/√Hz input voltage noise Directly replaces MAX4281 Small package options (SOT23-5 and SOT23-6) Applications I I I I I Normalized Magnitude (2dB/div) 0.1 Portable/battery-powered applications A/D buffer Active filters Signal conditioning Portable test instruments Non-Inverting Freq. Response Vs = +5V G=2 KM4111/KM4121 Packages SOT23-5 (KM4111) Out -Vs +In 1 2 + 5 +Vs - 1 10 100 Frequency (MHz) 3 4 ...