Table 3. Static Electrical Characteristics (continued)
Characteristics noted under conditions 9.0 V ≤ VPWR ≤ 18 V, -40°C ≤ TA ≤ 85°C unless otherwise noted. Typical values noted
reflect the approximate parameter means at TA = 25°C under normal conditions unless otherwise noted. Voltages are relative
to GND unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
Electrode Signals
Total Variance Between Electrode Measurements (7)
All CLOAD = 15 pF
ELVVAR
–
Electrode Maximum Harmonic Level Below Fundamental (8)
ELHARM
5.0 pF ≤ CLOAD ≤ 100 pF
–
Electrode Transmit Output Range
5.0 pF ≤ CLOAD ≤ 100 pF
ELTXV
1.0
Receive Input Voltage Range
Grounding Switch on Voltage
ISW = 1.0 mA
RXV
0
SWVON
–
%
–
3.0
dB
-20
–
V
–
8.0
–
9.0
V
V
–
5.0
Shield Driver
Shield Driver Output Level
0 pF ≤ CLOAD ≤ 500 pF
Shield Driver Input Range
Grounding Switch on Voltage (9)
Logic I/O
SDTXV
1.0
SDIN
0
SWVON
–
V
–
8.0
–
9.0
V
–
1.5
V
CMOS Logic Input Low Threshold
Logic Input High Threshold
Voltage Hysteresis
Input Current
VIN = VCC
VIN = 0 V
VTHL
0.3
–
–
VCC
VTHH
–
–
0.7
VCC
VHYS
–
0.06
–
VCC
IIN
µA
10
–
50
-5.0
–
5.0
Signal Detector
Detector Output Resistance
DETRO
–
LP_CAP to LEVEL Gain
AREC
3.6
LP_CAP to LEVEL Offset
VRECOFF
-3.3
Notes
7. Verified by design. Not tested in production.
8. Verified by design and characterization. Not tested in production.
9. Current into grounded terminal under test = 1.0 mA.
50
–
kΩ
4.0
4.4
AV
-3.0
-2.7
V
MC33794
8
Sensors
Freescale Semiconductor