SBAU330C June 2019 – January 2022 AMC3301 , AMC3301-Q1 , AMC3302 , AMC3302-Q1 , AMC3330 , AMC3330-Q1
The analog outputs from the evaluation module are fully differential signals centered at a common-mode output voltage of 1.44 V. As Figure 2-2 shows, the outputs are available on the three screw terminals of J3. OUTP is available at J3.2 and swings from 0.5 V to 2.5 V when a negative to positive full-scale linear input signal is applied to the input. OUTN is available at J3.1 and swings from 2.5 V to 0.5 V when a negative to positive full-scale linear input signal is applied to the input.
The pads of R3, R5, C11, C10, and C13 allow users to install their own output filtering. Table 2-1 lists a few example filters. Common-mode filter capacitors C10 and C13 are recommended to be at least 20 times less than the differential filter capacitor, C11.
Cutoff Frequency | Resistance | Differential Capacitor |
---|---|---|
100 kHz | R3 = R5 = 100 Ω | C11 = 8.2 nF |
300 kHz | R3 = R5 = 100 Ω | C11 = 2.7 nF |
600 kHz | R3 = R5 = 100 Ω | C11 = 1.3 nF |