Piezoelectric (Charge) Mode
Signal (+)
Signal ground
TEDS
Control
Teds (+)
Teds (-)
Signal conditioner
+
-
+V
-V
Amplifier
TEDS
Class 2
Piezoelectric sensor
optional
Figure A.224:
Piezoelectric mode block diagram
Input ranges
±
1 nC,
±
10 nC,
±
100 nC,
±
1 µC,
±
10 µC
Over voltage protection
±
25 V
Piezoelectric gain error
±
1% of Full Scale typical
±
2% of Full Scale maximum
Piezoelectric gain error drift
Typical:
±
20 ppm/°C (
±
12 ppm/°F)
Maximum:
±
65 ppm/°C (
±
36 ppm/°F)
-
3 dB high pass bandwidth limit
1 Hz
±
20%
-
3 dB low pass bandwidth limit
33 kHz
±
10% when a 650 pF source capacity is used
106 kHz
±
10% when a 100 pF source capacity is used
TEDS support
Class 2 (no software support at release date)
Piezoelectric Mode Wire Diagram
GN1640B
GN840B
Piezoelectric
10
2
3
4
5
6
7
8
9
11
14
13
12
1
Signal
Signal wire
Shield
(+)
Signal ground
7
4
Housing
Shield
Signal wire
KAB173
Figure A.225:
Recommended piezoelectric connection
GEN3i
646
I3763-3.1 en HBM: public
