National Instruments NI 9219 - Manual (Page 28)

NI 9219 Operating Instructions 28 ni.com
Input bias current .............................. <1 nA
INL.................................................... ±15 ppm 1
CMRR (f
in
= 60 Hz)..........................>100 dB
NMRR
Best 60 Hz rejection ................... 90 dB 2 at 60 Hz
Best 50 Hz rejection ................... 80 dB at 50 Hz
High resolution ........................... 65 dB at 50 Hz and 60 Hz
Excitation level for Half-Bridge and Full-Bridge modes
1 INL is ±140 ppm for Voltage mode with ±60 V or ±1 V range when using the Best
60 Hz rejection conversion time.
2 NMRR is 80 dB for Voltage mode with ±1 V range when using the Best 60 Hz
rejection conversion time.
Mode Load Resistance ( Ω) Excitation (V)
Half-Bridge 700 2.5
Half-Bridge 240 2.0
Full-Bridge 350 2.7
Full-Bridge 120 2.2