The AD8663 is a rail-to-rail output, single-supply amplifier that uses the Analog Devices, Inc., patented DigiTrim trimming technique to achieve low offset voltage. The AD8663 features an extended operating range, with supply voltages up to 16 V. It also features low input bias current, wide signal bandwidth, and low input voltage and current noise. The combination of low offset, very low input bias current, and a wide supply range makes these amplifiers useful in a wide variety of applications usually associated with higher priced JFET amplifiers. Systems using high impedance sensors, such as photodiodes, benefit from the combination of low input bias