PXIe-4081 High-Performance 7 1/2 Digit DMM and 1000 V Digitizer (783130-01)

PXIe, 7½-Digit, ±1,000 V, Onboard 1.8 MS/s Isolated Digitizer, PXI Digital Multimeter
The PXIe‑4081 is the industry’s most accurate 7½‑digit DMM and provides the measurement capabilities found in two common test instruments: a high-resolution 1,000 V DMM and a digitizer. As a DMM, the PXIe‑4081 delivers fast, accurate AC/DC voltage, AC/DC current, 2‑ or 4‑wire resistance, and frequency/period measurements, as well as diode tests. In the high-voltage, isolated digitizer mode, the PXIe‑4081 can acquire waveforms at sample rates up to 1.8 MS/s.

Key product

DC Voltage General Specifications
ADC linearity 0.5 ppm of reading + 0.5 ppm of range
Effective common-mode rejection ratio (CMRR) (1 kΩ resistance in LO lead) >140 dB (DC), 100 ms aperture; >170 dB (>46 Hz) with high-order DC noise rejection, 100 ms aperture, typical
Overrange 105% of range except 1000 V
DC voltage input bias current <30 pA at 23 °C, typicalResistance General Specifications
Maximum 4-wire lead resistance Use the lesser of 10% of range or 1 kΩ

DC Current General Specifications
Overrange 105% of range except 1 A range

AC Voltage General Specifications
Input impedance 10 MΩ ± 2% in parallel with 90 pF, typical
Input coupling AC or DC coupled
Overrange 105% of range except 700 V
Maximum Volt-Hertz product Verified to 2.2 x 10^7 V-Hz
Maximum DC voltage component 400 V
Common mode rejection ratio (CMRR), 1 kΩ resistance in LO lead >70 dB (DC to 60 Hz), typical

Diode Test Specifications
Range 10 V

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