I need some help with understanding the electrical model of ADG436. After reviewing the datasheet, I am still unsure if my simplified schematic for this part is correct. I used the values for +/- 15V supply from the datasheet: Ron 12Ohm, Cs(off) 13p, Cs(on) 49p, Cd 49p. The main doubt is Cs_off and Cs_on notation. My understanding is that C_on is a parasitic capacitance while the channel is on and C_off is a parasitic capacitance while the channel is off both in respect to GND.
Therefore, depending on control lines, one channel will conduct by providing a low impedance path (12 Ohm) and this channel would also exhibit a parasitic capacitance of 49pF to GND.
Could someone verify my assumption and schematic attached?