PS25451 Datasheet, PDF (2/5 Pages) List of Unclassifed Manufacturers – EPIC ULTRA HIGH IMPEDANCE MOVEMENT SENSOR ADVANCE INFORMATION

PS25451
ELECTRICAL CHARACTERISTICS
T_amb = -25°C to +75°C,Vdd/Vss ±2.4V to ±5..5V. The electrical characteristics are guaranteed by either production
test or by design and characterisation. They apply within the specified ambient temperature and supply voltage
unless otherwise stated.
Characteristics
Supply voltage
Supply current
Effective input resistance
Effective input capacitance
Primary Output Voltage Gain (Av)
Guard Output voltage gain
Lower -3dB point
Upper -3dB point
Min.
±2.4
0.6
Value
Typ.
2.0
20
15
Max.
±5.5
3.5
47.5 50 52.5
0.95 1.0 1.05
0.20
4.0
Units
V
mA
GΩ
pF
Hz
kHz
Conditions
Bipolar supply, Gnd=0V
As measured at the sensor electrode
When measured with 250pF coupling
capacitance.
@1kHz
Set by internal DC signal rejection
network – coupling capacitor 250pF
-3dB
0.2Hz
10kHz
Fig. 3 Typical Bode Plot for PS25451 Sensor with Coupling through 250pF Capacitor
Data Sheet 291767 Issue 2
Plessey Semiconductors Ltd.
Design & Technology Centre, Delta 500, Delta Business Park, Great Western Way, Swindon, UK SN5 7XE
Tel: [phone]
Fax: [phone]
Web: www.plesseysemi.com
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