Probe Gain and Bandwidth
| Feedback Resistor |
Probe Gain |
Maximum Current |
Minimum Bandwidth |
| 10MΩ |
10mV/nA |
1000nA |
100kHz |
| 100MΩ |
100mV/nA |
100nA |
100kHz |
| 1GΩ |
1mV/pA |
10nA |
60kHz |
| 10GΩ |
10mV/pA |
1nA |
40kHz |
Probe Case Size
2.1" (54mm) long x 0.8"(20mm) high x1.4"(36mm)
wide
BNC input connector
1mm ground pin connector
Maximum Instrument Noise
Voltage clamp modes measured with the internal 4 pole Bessel
filter and minimum external noise.
| |
Headstage
Resistor (Ωs) |
| Bandwidth |
10M |
100M |
1G |
10G |
| 1Khz Theoretical
Limit |
0.002nA |
0.4 pA |
0.1 pA |
0.04 pA |
| 1kHz |
0.003nA |
0.5 pA |
0.17 pA |
0.08 pA |
Current clamp modes have noise levels less than
20µV with inputs shorted.
Internal Bandwidth
For voltage clamping only the bandwidth is settable
from 10kHz to 100kHz.
Membrane Current Output Range
| Probe Feedback
Resistor |
Output Range |
| 10MΩ |
10mV/nA-1V/nA |
| 100MΩ |
100mV/nA-10V/nA |
| 1GΩ |
1mV/pA-100nV/pA |
| 10GΩ |
10mV/pA-1V/pA |
Membrane Voltage Output Range
10mV/mV-1V/mV
Filter
4 pole Bessel filter with 6 pre-set values,
and bypass: 0.5 kHz, 1.0 kHz, 2.0 kHz, 5.0 kHz, 10.0 kHz,
and 20.0 kHz.
0.1kHz resolution
Capacity Compensation
Voltage clamp:
FAST1: 0-10pF, 0.2-2µs
FAST2: 0-1pF, 0.1-10ms
Current clamp
FAST1: 0-10pF
No FAST2
Whole Cell Compensation
Raccess: 0-100MΩ
Cmembrane: 0-100pF
Series Resistance
RsPre: 0-100%
RsComp: 0-100%
LagCoarse: 1-100µs
LagFine: 1-10µs
DC Balance
Up to the value of the low feedback resistor in the probe
Hold Command
Voltage clamp: ±200mV
Current clamp:
| Probe Resistor |
10M |
100M |
| Command Range |
±200nA |
±20nA |
Offset Command
Voltage clamp: ±100mV
Current clamp: ±1V
Speed Test Command
Used in voltage clamp only.
Probe High Gain: 0.2nA p-p at 60Hz
Probe Low Gain: 1nA p-p at 60Hz
Vcomp Command
±5mV at 60Hz
Iresist Command
±1nA at 60Hz
External Command
Voltage clamp:
100mV/V with the external switch set to 410, 20mV/V with the external switch set to 450
Current clamp:
| Probe Resistor |
10M |
100M |
| 410
range |
±100nA/V |
±10nA/V |
| 450
range |
±20nA/V |
±2nA/V |
|