AD8643

Data Sheet Low Power, Rail-to-Rail Output, Precision JFET Amplifiers AD8641/AD8642/AD8643 FEATURES Low supply current: 250 μA max Very low input bias current: 1 pA max Low offset voltage: 750 μV max Single-supply operation: 5 V to 26 V Dual-supply operation: ±2.5 V to ±13 V Rail-to-rail output Unity-gain stable No phase reversal SC70 package APPLICATIONS Line-/battery-powered instruments Photodiode amplifiers Precision current sensing Medical instrumentation Industrial controls Precision filters Portable audio ATE GENERAL DESCRIPTION The AD8641/AD8642/AD8643 are low power, precision JFET input amplifiers featuring extremely low input bias current and rail-to-rail output. The ability to swing nearly rail-to-rail at the input and rail-to-rail at the output enables designers to buffer complementary metal-oxide semiconductor digital-to-analog converters (CMOS DACs), ASICs, and other wide output swing devices in single-supply systems. The outputs remain stable with capacitive loads of...