ZHCSEU3E July 2014 – June 2022 ADC3221 , ADC3222 , ADC3223 , ADC3224
PRODUCTION DATA
Typical applications involving transformer-coupled circuits are discussed in this section. Transformers (such as ADT1-1WT or WBC1-1) can be used up to 250 MHz to achieve good phase and amplitude balances at the ADC inputs. When designing the dc-driving circuits, the ADC input impedance must be considered. Figure 9-1 and Figure 9-2 show the impedance (Zin = Rin || Cin) across the ADC input pins.