Specifications

1820/1822 Operator’s Manual
Warranted Characteristics
Warranted characteristics describe parameters which have guaranteed performance.
provided in the Performance Verification Procedure for all warranted specifications.
Unless otherwise noted, tests are
Gain Accuracy
Bandwidth (- 3dB)
X1 or XI0 Gain
X 100 Gain
X 1000 Gain
Rise Time (XI or X10 Gain)
Common Mode Rejection Ratio
(X 1 or X 10 Gain)
70 Hz
100 KHz
1 MHz
Precision Voltage Generator Accuracy
+1% + Uncertainty of termination resistance
>10 MHz
>2.5 MHz
>1 MHz
<35 ns (Calculated from Bandwidth)
>100,000:1 (100 dB)
>100,000:1 (100 dB)
>1,000:1 (60 dB)
0.05% of reading + 500 ~tV (15
°
to 45
°
C.)
Typical Characteristics
Typical characteristics describe parameters which do not have guaranteed performance. Tests for typical characteristics
are not provided in the Performance Verification Procedure.
Input Resistance
+1 Attenuator
+ 10 Attenuator
Input Capacitance
AC Input Coupling Capacitance
+ 10 Attenuator Accuracy
DC Drift (X10 Gain, referred to input)
Input Leakage Current
(X 1 or X 10 Gain, + 1 Attenuator)
Differential Offset Accuracy
X i 0, X 100, X 1000 Gain, + 1 Attenuator
XI Gain, +1 Attenuator
X 10, X 100, X 1000 Gain, + 10 Attenuator
XI Gain, +10 Attenuator
Precision Voltage Generator Temperature
Coefficient (1822 and 1822-PR2 models)
Power Consumption
1 MF2 or 100 Mr2
1 Mr2 only with attenuating probe
1 Mr2
20 pF
0.1 ~tF
0.05%
50 ~tVPC
<10 pA (0
°
- 45
°
C.)
O. 1% + 50 laV
2
0.1% + 500 ~tV
2
O. 15% + 500 ~tV
2
O. 15% + 5 mV
2
<5 mVPC of full scale
26 W, ~ 36 VA (1820 and 1822)
52 W, ~ 72 VA (1820-PR2 and 1822-PR2)
2 Voltages are referred amplifier input connector. Multiply by probe attenuation factor to obtain value refer to probe
input. (e.g. 0.1% + 50 ~tV
2
becomes 0.1% + 500 laV at the probe tip when using a +10 probe.)