4601 I-V Meter Operation Manual
5.2.6 Settling Time
5-15
5.2.6
Settling Time
The settling time for voltage source varies depending on the response switching.
The stability of output voltage or current varies depending on the cable inductance or device capacitance.
Also, the slower the response is, the more the output voltage or current is stabilized.
However, slow response makes the total throughput slow, too.
Thus, the response needs to be set in consideration of the actual cable wiring, the device characteristics
and the required measurement speed.
Figure 5-8 Settling Time and Measurement Delay Time
This section describes how to calculate the 4601 settling time with a pure resistance load (CL < 10 pF).
The settling time Ts is calculated using the time constant
p that is determined by the voltage source range
and the response time, the slew rate Sr and the source voltage change
Vs as follows:
Ts =
Vs/Sr +
p [
s]
Vs:
Source voltage change [V]
Sr:
Slew rate [
s]
:
Coefficient determined by the error (%) from the final value
10%
: 2.3
1%
: 4.6
0.1% : 6.9
p:
Time constant [
s]
Ts:
Settling time
Td:
Measurement delay time
Tm:
Measurement time
