The AD7655ASTZ is a 4-channel, 16-bit, 1 MSPS, low cost Analog-to-Digital Converter (ADC) manufactured by Analog Devices. The AD7655ASTZ features a single-ended input range with an input range of 0V - 3.3V, and an analog input bandwith of 1 MHz. The ADC features a low 115µV offset error and a differential-nonlinearity of ±1LSB. In addition, this device offers a power-down feature that eliminates the need for external switch-off control, so it can quickly enter into a lowpower state when needed. Furthermore, it features a hardware sync input for synchronization of multiple conversions, a single-ended or differential reference voltage, digital error correction, automatic analog detect/ shutdown features, and an SPI serial interface. The AD7655ASTZ is an excellent solution for applications such as process control equipment, consumer electronics and audio/video systems.