Nov 6, 2012 #1 S steinar96 Member level 5 Joined Oct 9, 2009 Messages 94 Helped 24 Reputation 48 Reaction score 24 Trophy points 1,288 Activity points 1,989 Greetings I'm unfamiliar wit the unit Ω || pF in a datasheet for a JFET operationa amplifier i'm looking at. The parameter is the input impedance. 10*10^13 || 8 Ω || pF I'd assume that it means a 10 teraohm input impedance and then a 8 pF capacitance on the gate input. Please correct me if i'm wrong. Or confirm if i'm right Best regards.
Greetings I'm unfamiliar wit the unit Ω || pF in a datasheet for a JFET operationa amplifier i'm looking at. The parameter is the input impedance. 10*10^13 || 8 Ω || pF I'd assume that it means a 10 teraohm input impedance and then a 8 pF capacitance on the gate input. Please correct me if i'm wrong. Or confirm if i'm right Best regards.
Nov 6, 2012 #2 keith1200rs Super Moderator Staff member Joined Oct 9, 2009 Messages 10,865 Helped 2,065 Reputation 4,130 Reaction score 1,596 Trophy points 1,403 Location Yorkshire, UK Activity points 57,270 Yes, the || denotes 'in parallel' so 1M || 1pF means 1M ohm in parallel with 1pF. Keith
Nov 6, 2012 #3 S steinar96 Member level 5 Joined Oct 9, 2009 Messages 94 Helped 24 Reputation 48 Reaction score 24 Trophy points 1,288 Activity points 1,989 Thank you very much