I'm planning to use the AD9255 single 14 bit ADC with DC coupled input signals in the dc - 20 MHz range.
Because of the DC coupled requirement I am looking at ADC driver amplifiers instead of a transformer.
The AD9255 web page recommends the ADA4937-2 and ADA 4938-2 parts. The AD9255 data sheet shows the ADA4938-2 in figure 66. However, these ADC drivers are dual parts and I don't understand why these are recommended, the AD9255 is a single ADC. Is it a typo or am I missing something?
Can I just substitute the the ADA4937 in place of the ADA4938 as shown in figure 66? If so that may be the driver and circuit that I need.