Explore this detailed application circuit by Analog Devices and learn more about the circuit function and benefits as well as how to set up and run a circuit evaluation and test for the Bank Isolated, 2-Channel, 16-Bit, 500 kSPS, Simultaneous Sampling Signal Chain Featuring Module Data Acquisition System using the ADAQ7988 by Analog Devices.
This application circuit is a two-channel, bank isolated, wide bandwidth data acquisition (DAQ) system that is enabled by a simultaneous sampling architecture that has an analog-to-digital converter (ADC) in each channel. The system achieves high-channel density along with isolation between the bank and the digital backplane, all while delivering exceptional performance. The isolation channels are efficiently used by configuring the ADCs in a daisy-chain mode and by using an isolator product with a trimmed delay clock feature. Power generation is also simplified with an isolator that has an integrated pulse width modulation (PWM) controller and with a transformer driver to perform DC-to-DC conversion across the isolation barrier. The system also includes many common features of a typical DAQ signal chain, including input circuit protection, programmable gain channels, high accuracy, and high performance.