GENERAL DESCRIPTION
The ALD1721/ALD1721G is a monolithic CMOS micropower high slew rate operational amplifier intended for a broad range of precision applications requiring exremely low input signal power. Input signal power is the product of input offset voltage and input bias current, which represents the minimum required power draw from the signal source in order to drive the input of the operational amplifier. Input signal power is also a figure of merit in source loading and its associated error, and is a measure of the basic signal resolution possible through the operational amplifier for a given signal source. For certain types of signal sources, signal loading directly translates into a significant distortion or "interface noise equivalent" term. The ALD1721/ALD1721G is designed to set a new standard in low input signal power requirements. The typical input loading at its input is 0.05 mV offset voltage and 0.01 pA input bias current at 25C, resulting in 0.0005 fW input signal power draw.
Advanced Linear Devices
