2640A/2645A NetDAQ
Users Manual
A-20
Table A-28. 2645A AC Voltage Range and Resolution Specifications
Range
Resolution
Minimum Input for
Slow Fast
Rate Accuracy
Full Scale ±30,000 ±3,000 
300 mV 10 µV 100 µV 20 mV
3V 100 µV 1 mV 200 mV
30V 1 mV 10 mV 2V
Table A-29. 2645A AC Voltage Accuracy Specifications
1 Year Accuracy ± (%input + V)*
Range Frequency 18ºC to 28ºC-10ºC to 60ºC
Slow Fast Slow Fast
300 mV 20 to 50 Hz 3%+.25 mV 6%+.5 mV 3.5%+.25 mV 7%+.5 mV
50 to 150 Hz 0.4%+.25 mV 0.8%+.5 mV 0.5%+.25 mV 1%+.5 mV
150 Hz to 10 kHz 0.3%+.25 mV 0.8%+.5 mV 0.4%+.25 mV 1%+.5 mV
10 kHz to 20 kHz 0.4%+.25 mV 1%+.5 mV 0.7%+.25 mV 1.5%+.5 mV
20 kHz to 50 kHz 2%+.3 mV 3%+.5 mV 3%+.3 mV 4%+.5 mV
50 kHz to 100 kHz 5%+.5 mV 5%+1 mV 7%+.5 mV 8%+1 mV
3V 20 to 50 Hz 3%+2.5 mV 6%+5 mV 3.5%+2.5 mV 7%+5 mV
50 to 150 Hz 0.4%+2.5 mV 0.8%+5 mV 0.5%+2.5 mV 1%+5 mV
150 Hz to 10 kHz 0.3%+2.5 mV 0.6%+5 mV 0.4%+2.5 mV 1%+5 mV
10 kHz to 20 kHz 0.4%+2.5 mV 0.8%+5 mV 0.5%+2.5 mV 1%+5 mV
20 kHz to 50 kHz 1%+3 mV 1.5%+6 mV 1.5%+3 mV 2%+6 mV
50 kHz to 100 kHz 2%+5 mV 3%+10 mV 3%+5 mV 4%+10 mV
30V 20 to 50 Hz 3%+50 mV 6%+100 mV 3.5%+50 mV 7%+100 mV
50 to 150 Hz 1%+50 mV 1.5%+100 mV 1.2%+50 mV 2%+100 mV
150 Hz to 10 kHz 0.4%+25 mV 0.6%+50 mV 1.2%+25 mV 1.3%+40 mV
10 kHz to 20 kHz 0.4%+25 mV 0.8%+50 mV 1.2%+25 mV 1.3%+40 mV
20 kHz to 50 kHz 1%+30 mV 1.5%+60 mV 1.2%+30 mV 2%+50 mV
50 kHz to 100 kHz
V<20V
2%+50 mV 3%+100 mV 2.5%+50 mV 4%+100 mV
* Sine wave inputs>6% of scale and signals with crest factors <2.
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