Analog Devices AD7380 and AD7381 16-Bit/14-Bit SAR Analog-to-Digital Converters (ADCs) operate from a 3.0V to 3.6V power supply and feature throughput rates up to 4MSPS. The AD7380 and AD7381 feature a differential analog input type that accepts a wide common-mode input voltage. It's sampled and converted on the falling edge of CS. Integrated on-chip oversampling blocks improve dynamic range and reduce noise at lower bandwidths. A buffered internal 2.5V reference is included. Alternatively, an external reference up to 3.3V can be used. The conversion process and data acquisition use standard control inputs allowing easy interfacing with microprocessors or digital signal processors (DSPs). The device is compatible with 1.8V, 2.5V, and 3.3V interfaces, using a separate logic supply.
