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VOLTS
ACCURACY
TEMPERATURE
(1 Year)1
COEFFICIENT
5
1
⁄
2
DIGIT
18°–28°C
0°–18°C & 28°–50°C
RANGE
RESOLUTION
±(%rdg+counts)
±(%rdg+counts)/°C
2 V
10 µV
0.025 + 4
0.003 + 2
20 V
100 µV
0.025 + 3
0.002 + 1
200 V
1mV
0.06 + 3
0.002 + 1
Note:
1 When properly zeroed, 5
1
⁄
2
-digit. Rate: Slow (100ms integration time).
NMRR:
60dB on 2V, 20V, >55dB on 200V, at 50Hz or 60Hz ±0.1%.
CMRR:
>120dB at DC, 50Hz or 60Hz.
INPUT IMPEDANCE:
>200T
Ω
in parallel with 20pF, < 2pF guarded (10M
Ω
with zero
check on).
SMALL SIGNAL BANDWIDTH AT PREAMP OUTPUT:
Typically 100kHz (–3dB).
AMPS
ACCURACY
TEMPERATURE
(1 Year)1
COEFFICIENT
5
1
⁄
2
DIGIT
18°–28°C
0°–18°C & 28°–50°C
RANGE
RESOLUTION
±(%rdg+counts)
±(%rdg+counts)/°C
20 pA
100 aA2
1
+ 30
0.1
+ 5
200 pA
1 fA2
1
+ 5
0.1
+ 1
2 nA
10 fA
0.2 + 30
0.1
+ 2
20 nA
100 fA
0.2 + 5
0.03 + 1
200 nA
1 pA
0.2 + 5
0.03 + 1
2 µA
10 pA
0.1 + 10
0.005 + 2
20 µA
100 pA
0.1 + 5
0.005 + 1
200 µA
1 nA
0.1 + 5
0.005 + 1
2 mA
10 nA
0.1 + 10
0.008 + 2
20 mA
100 nA
0.1 + 5
0.008 + 1
Notes:
1 When properly zeroed, 5
1
⁄
2
-digit. Rate: Slow (100ms integration time).
2 aA =10–18A, fA=10–15A.
INPUT BIAS CURRENT:
<3fA at TCAL (user adjustable). Temperature coefficient =
0.5fA/°C .
INPUT BIAS CURRENT NOISE:
<750aA p-p (capped input), 0.1Hz to 10Hz band-
width, damping on. Digital filter = 40 readings.
INPUT VOLTAGE BURDEN at TCAL ±1°C
(user adjustable)
:
<20µV on 20pA, 2nA, 20nA, 2µA, 20µA ranges.
<100µV on 200pA, 200nA, 200µA ranges.
<2mV on 2mA range.
<4mV on 20mA range.
TEMPERATURE COEFFICIENT OF INPUT VOLTAGE BURDEN:
<10µV/°C on pA, nA,
µA ranges.
PREAMP SETTLING TIME (to 10% of final value):
2.5s typical on pA ranges, damping
off, 3s typical on pA ranges damping on, 15ms on nA ranges, 5ms on µA and mA
ranges.
NMRR:
>95dB on pA, 60dB on nA, µA, and mA ranges at 50Hz or 60Hz ±0.1%. Digital
Filter = 40.
A-2
Specifications
Section A pg 2-4 5/5/03 1:57 PM Page 1
Содержание 6514
Страница 203: ...14 CommonCommands...
Страница 207: ...15 SCPISignalOriented MeasurementCommands...
Страница 235: ...18 PerformanceVerification...
Страница 254: ...19 Calibration...
Страница 274: ...20 RoutineMaintenance...
Страница 278: ...A Specifications...
Страница 282: ...B StatusandErrorMessages...
Страница 288: ...C GeneralMeasurement Considerations...
Страница 294: ...D DDCEmulationCommands...
Страница 299: ...E ExamplePrograms...
Страница 306: ...F IEEE 488BusOverview...
Страница 320: ...G IEEE 488andSCPI ConformanceInformation...
Страница 324: ...H CalibrationOptions...