The AD8656ARZ-REEL7 is a precision amplifier low noise CMOS dual manufactured by Analog Devices. It is a high performance, low noise, low power CMOS amplifier with a maximum gain up to +15dB. This device combines low noise operation with wide game bandwidths (up to 3MHz) and low power consumption (typically 0.5mW). The AD8656ARZ-REEL7 is designed for applications requiring high input and output common-mode range, like closed-loop electrochemical spectroscopy, precision instrumentation, medical instruments and processors, video and imaging systems, and audio applications. It offers excellent DC and AC characteristics such as high precision, low noise (noise figure of 2.5nV/vHz), and high input common-mode range (up to 4V). It can be used in single-supply and dual-supply systems with single power supplies as low as 1.6V. The AD8656ARZ-REEL7 also features an improved digital-gate control and has wide range of input and output stages with rail-to-rail inputs and outputs.