8.1 Specifications
CA5350
8-3
8.1.2 Current suppression section
Built-in current source for cancelling DC current of the source of signal, and it is
connected to the input terminal of this instrument.
Range
6 ranges (8nA, 80nA, 800nA, 8µA, 80µA, 800µA) or OFF
Setting range
8nA range
-8.000nA ~ +8.000nA, resolution 1pA
80nA range
-80.00nA ~ +80.00nA, resolution 10pA
800nA range
-800.0nA ~ +800.0nA, resolution 100pA
8µA range
-8.000µA ~ +8.000µA, resolution 1nA
80µA range
-80.00µA ~ +80.00µA, resolution 10nA
800µA range
-800.0µA ~ +800.0µA, resolution 100nA
Setting accuracy (supplementary value)
8nA range
±(|3.0% of s 0.15% of range)
80nA range
±(|1.5% of setting |+ 0.15% of range)
800nA range
±(|0.8% of setting |+ 0.15% of range)
8µA range -800µA range ±(|0.6% of setting |+ 0.15% of range)
Auto suppression
Function for automatically selecting and setting the
current value and current suppression range required for
cancelling the input current when auto suppression is ON.
8.1.3 Amplifier section
Gain accuracy
at DC
Gain setting
(V/A)
Output amplifier gain settings
×1
×10
10G
1×10
10
±1.0%
1×10
11
±1.0%
1G
1×10
9
±1.0%
1×10
10
±1.0%
100M
1×10
8
±0.5%
1×10
9
±0.5%
10M
1×10
7
±0.3%
1×10
8
±0.3%
1M
1×10
6
±0.25%
1×10
7
±0.25%
100k
1×10
5
±0.25%
1×10
6
±0.25%
10k
1×10
4
±0.25%
1×10
5
±0.25%
Frequency characteristics Conditions: Filter OFF, Output amplifier gain ×1, no
source capacitance
Gain setting
(V/A)
Within
+0.5dB/-3dB
Response speed
(supplementary value)
Remarks
10G
DC ~ 14kHz
25µs
Reference frequency: 1Hz
1G
DC ~ 70kHz
5µs
Reference frequency: 10Hz
100M
DC ~ 175kHz
2µs
10M
DC ~ 350kHz
1µs
1M
DC ~ 500kHz
0.7µs
100k
10k
Response speed is the rise time (10%–90%) of square
output response waveform.
