SBASAZ3 October 2025 AMC0306M25-Q1
PRODMIX
Refer to the PDF data sheet for device specific package drawings
As shown in Figure 7-1, input of the AMC0x06M25-Q1 has a fully differential, switched-capacitor circuit. The AMC0x06M25-Q1 has a dynamic input impedance of 27.5kΩ at 20MHz.
The sampling capacitor is continuously charged and discharged with a frequency of fCLK. With the S1 switches closed, CIND charges to the voltage difference across VINP and VINN. For the discharge phase, both S1 switches open first and then both S2 switches close. CIND discharges to approximately AGND + 0.8V during this phase.
The analog input range is tailored to directly accommodate a voltage drop across a shunt resistor used for current sensing. There are two restrictions on the analog input signals (INP and INN).