PXI-4022 Datasheet, PDF (2/3 Pages) National Instruments Corporation – 6-Wire Guard and Current Amplifier

6-Wire Guard and Current Amplifier
Specifications
Guard Amplifier
Input-output offset.................................................................
Gain .......................................................................................
Slew rate................................................................................
Bandwidth ..............................................................................
±200 µV typical; ±500 µV max
1 ±0.0005% at DC
40 V/µS minimum
1 MHz typical minimum
Current Amplifier
Gain Setting V/A Accuracy¹ Usable Sensitivity² Settling Time³ Burden Voltage (max)
(Range)
23 °C ± 5 °C
Tempco/°C
(0 to 55 °C)
10⁸ (100 nA)
10⁶ (10 µA)
10⁴ (1 mA)
0.7% ± 5 pA
0.5% ± 0.5 nA
0.5% ± 50 nA
0.5 pA
50 pA
5 nA
100 ms
33 ms
1 ms
20 µV
2 mV
200 mV
0.01% + 0.2 pA
0.005% + 2 pA
0.005% + 200 pA
1_{Recommended for laboratory enviornments, 0 to 35 °C up to 60% relative humidity.} 2_{10 Hz bandwidth} 3_{10 to 90%, 3 dB bandwidth = 0.5/settling time}
Input Characteristics
Input impedance .................................................................... >10¹⁰ Ω
Input bias current................................................................... <5 pA at 23 °C, typical
Output Characteristics
Voltage output range ............................................................. ±12 V max
Output drive current............................................................... ±15 mA max
Overvoltage Protection
Guard Out, Guard In+, Guard In-............................................ 120 VAC, continuous; 100 VDC, continuous; 300 VDC (5 s); 250 VAC (10 s)
Physical
Dimensions ............................................................................ 10 by 16 cm (3.9 by 6.3 in.); single PXI slot, 3U
Environment
Operating temperature ..........................................................
Storage temperature..............................................................
Relative humidity ...................................................................
Pollution degree.....................................................................
Approved at altitudes up to 2000 m
0 to 55 °C
-20 to 70 °C
5 to 85% noncondensing
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Safety
This product is designed to meet the requirements of the following standards of safety for electrical equipment
for measurement, control, and laboratory use:
• IEC 61010-1, EN 61010-1
• UL 61010-1
• CAN/CSA C22.2 No. 61010-1
Electromagnetic Compatibility
CE, C-Tick, and FCC Part 15 (Class A) Compliant
Emissions ............................................................................... EN 55011 Class A at 10 m FCC Part 15A above 1 GHz
Immunity ................................................................................ EN 61326:1997 +A2:2001, Table 1
CE Compliance
This product meets the essential requirements of applicable European Directives, as amended for CE Marking, as follows:
Low-Voltage Directive (safety) .............................................. 73/23/EEC
Electromagnetic Compatibility Directive (EMC) .................... 89/336/EEC
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