ZHCSUL6 February 2024 ADC12DL1500 , ADC12DL2500 , ADC12DL500
PRODUCTION DATA
This section demonstrates the use of the ADC12DLx500 in a reconfigurable oscilloscope. The oscilloscope can operate as a dual-channel oscilloscope running up to 2.5GSPS or can be reconfigured through SPI programming as a single-channel, up to 5GSPS oscilloscope. This reconfigurable setup allows tradeoffs between the number of channels and the sampling rate of the oscilloscope as needed without changing the hardware. Set the input bandwidth to the desired maximum signal bandwidth through the use of an antialiasing, low-pass filter. Digital filtering can then be used to reconfigure the analog bandwidth as required. For instance, the maximum bandwidth can be set to 1GHz for use during pulsed transient detection and then reconfigured to 100MHz through digital filtering for low-noise, power-supply ripple observation. Figure 7-1 shows the application block diagram for a reconfigurable oscilloscope.