Category: Hardware
Product Number: ADL5565
Hi Team,
We have planned to use the AD5565 driver in our design with anti aliasing filter.
I also checked the application note AN-2545 circuit with the driver part using AD9642 ADC (https://www.analog.com/en/resources/app-notes/an-2545.html). it mentioned that the filter circuit have an input impedance of 217 ohms as shown below.
Whereas the driver's output impedance was found to be 10 ohms differential
Whether this impedance mismatch is acceptable even-though the recommended load for the driver is 200ohm.
What will be the impact of this impedance mismatch?
Also during PCB routing What trace impedance should be maintained between Driver to Filter path and Filter to ADC path?