EVAL-CN0393-FMCZ

The EVAL-CN0393-FMCZ from Analogue Devices is a CN-0393 circuit evaluation board. It is a bank isolated, 2-channel, 16bit, 500KSPS, simultaneous sampling signal chain featuring integrated data acquisition subsystem. The system achieves high channel density along with isolation between bank and digital backplane all while delivering exceptional performance. The design makes efficient use of isolation channels by configuring ADCs in daisy-chain mode and utilizing an isolator with a trimmed delay clock feature. Power generation is simplified using an isolator with an integrated PWM controller and transformer driver to perform DC to DC conversion across the isolation barrier. The system includes typical DAQ signal chain including input circuit protection, programmable gain channels, high accuracy and high performance. Simultaneous sampling realizes multiple channels without sample rate limitations inherent in multiplexed DAQ signal chains. The AFE design is simpler than multiplexed option.

• ADAQ7988 16bit, 500KSPS, integrated data acquisition subsystem
• 10MHz, 20V/µs, G = 1, 2, 4, 8, iCMOS AD8251 programmable gain instrumentation amplifier
• PWM controller and transformer driver with quad-channel ADuM3470 isolators
• 3.75KV, 6-channel, SPI ADuM3150 digital isolator for SPI with delay clock
• Ultralow noise, high accuracy ADR4550 voltage reference (5V) IC
• 20V, 200mA, low noise CMOS ADP7118 LDO linear regulator
• Low noise, -28V, -200mA, ADP7182 linear regulator
• 650KHz/1.3MHz, 4A, step-up, PWM ADP1614 DC to DC switching converter