Appendix B: Error Budget Calculations; Important Specs @ 25°C; Error Contributions That Can Be Removed With Calibration - B&B Electronics 4 Channel Input Buffer Board SDAIBB Product Manual

Appendix B: Error Budget Calculations

Important Specs @ 25°C:
V V
offset in
OSI
V V
offset out
OSO
I offset I
OS
Gain Error
Gain Nonlinearity
0.1Hz to 10Hz Noise
CMR
Error Contributions that can be Removed With
Calibration
Equation 15:
Equation 16:
Equation 17:
Equation 18:
V is the input voltage.
in
Error Contributions that Cannot be Removed with
Calibration
Equation 19:
Equation 20:
SDAIBB3599 Manual
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
200 V
1000 V
2nA
0.35%
50ppm
3.0 V p-p
84dB @ 60 Hz
V
V
OSI
V
OS
V
in
Sensor Impedance
I
OS
Gain Error 3500
4
CMR Error
Gain Nonlineari ty
0.1Hz - 10Hz noise
OSO
G
I
os
V
in
ppm
ppm V
CM
V
in
50 ppm
3000 nV
V
in
B-1