SCA720-D01 Datasheet, PDF (4/13 Pages) Murata Manufacturing Co., Ltd. – SCA720-D01 SINGLE AXIS ACCELEROMETER WITH ANALOG INTERFACE

1.3. Offset and sensitivity calibration
Vout offset is calibrated in 0g position:
Offset = V_out (+ 1g ) [V]
Nominal offset is Vdd/2:
Offset _nom
= ^Vdd
2
[V]
Sensitivity is calibrated as:
Sensitivity = ^{Vout (+ 1g ) − Vout (−1g )} [V/g]
2g
Nominal sensitivity is:
Sensitivity_nom = 0.9375 [V/g]
SCA720-D01
1.4. Error calculations
Total error is the allowed maximum error, which include partial error sources. Total error over
lifetime is specified as a sum of offset and sensitivity errors:
Total _ Error = Offset _ Error + Sensitivity _ Error [mg]
Offset error is specified as:
Vout(+ 1g ) − ^Vdd
Offset _ Error =
2 _[mg]
Sensitivity
Sensitivity error percent is specified as:
Sensitivity _ Error% = ^{[Vout(+1g ) − Vout(−1g )] 2g − Sensitivitynom} ×100%
Sensitivity_nom
Sensitivity error is specified as:
[Vout − Vout(+ 1g )]× Sensitivity _ Error%
Sensitivity _ Error =
[mg]
Sensitivity
Murata Electronics Oy
www.muratamems.fi
Doc. nr. 82171500
4/13
Rev.A