I need to make a current pulse of 50mA for 100ns
I understand that it isn't so difficult to make a 50mV voltage pulse from a pulse generator, but to make a current pulse I need to make some kind of voltage controlled current source?
Does anyone have any tutorials on this?
I want to apply a current pulse to a 10nF capacitor and measure its ESR.
There is a circuit in this PDF here: http://cds.linear.com/docs/en/application-note/an47fa.pdf on page AN47-65 which shows an opamp voltage controlled current source that gives pulses of similar magnitude to 50mA and 100ns but it is from 1991
Surely if its possible in 1991 it is possible now in 2013?
I understand that it isn't so difficult to make a 50mV voltage pulse from a pulse generator, but to make a current pulse I need to make some kind of voltage controlled current source?
Does anyone have any tutorials on this?
I want to apply a current pulse to a 10nF capacitor and measure its ESR.
There is a circuit in this PDF here: http://cds.linear.com/docs/en/application-note/an47fa.pdf on page AN47-65 which shows an opamp voltage controlled current source that gives pulses of similar magnitude to 50mA and 100ns but it is from 1991
Surely if its possible in 1991 it is possible now in 2013?