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AD9814S 2 input channels use

Category: Hardware
Product Number: AD9814S

For an aerospace design, we are using AD9814S CCD video AFE. In our implementation, we need to use two input channels (reed and green), we are not using the blue channel.The AFE internal configuration is set with three active channels, RGB order, CDS mode.

We want to confirm that the device can operate in this configuration. In this case, how do we connect the unused analog input? The options we think are:

1) Connect directly to GND.
2) Connect via 0.1 uF capacitor to GND.
3) Connect via pull down to GND.
4) No connection (open).

Best Regards,
Jordi Tribo

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