JAJSR80 September 2023 AMC131M01
PRODUCTION DATA
Multiple AMC131M01 devices can be arranged to scale the number of channels for simultaneous data acquisition. The same clock must be provided to all devices and the SYNC/RESET pins must be strobed simultaneously at least one time to align the sample periods internally between devices.
The devices can also share the SPI bus where only the CS pins for each device are unique. Each device can be addressed sequentially by asserting CS for the device that the host wishes to communicate with. The DOUT pin remains high impedance when the CS pin is high, allowing the DOUT lines to be shared between devices as long as no two devices sharing the bus simultaneously have the CS pins low. Figure 9-3 depicts multiple devices configured for simultaneous data acquisition while sharing the SPI bus.