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ZSSC3281BC3R Folha de dados(PDF) 21 Page - Renesas Technology Corp

Nome de Peças ZSSC3281BC3R
Descrição Electrónicos  Advanced Dual Channel ARM based Resistive Sensor Signal Conditioner IC
PDF  107 Pages
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Fabricante Electrônico  RENESAS [Renesas Technology Corp]
Página de início  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ZSSC3281BC3R Folha de dados(HTML) 21 Page - Renesas Technology Corp

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ZSSC3281 Datasheet
Rev. 1.3 FW Ver. 1.4.0
Mar.13.24 R33DS0020ED0100
Page 21
© 2024 Renesas Electronics
4.2
Bridge Sensor Inputs
4.2.1.
Resistive Bridge Sensors
Table 3: Resistive Bridge Parameters
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Rbr
Bridge resistor
Constant Voltage Mode
0.825
60
kΩ
Constant Current Mode
0.1
Cbr
Bridge capacitance, depends on
the required resolution: τ = R
br × Cbr
defines the settle time.
Filter capacitances Cbr between
INNx/INPx and VSS
1
nF
Vsig
Signal span
mV/V is related to the bridge
supply
500
mV/V
Voff
Signal offset
For example, Vsig = 1mV -->
Voff = 20mV
2000
20
% off Vsig
1/ Vsig
Table 4: Resistive Bridge Application Configurations
Type #
Application Case
AFE1
AFE2
Comment
1
One resistive sensor
Resistive sensor 1
-
2
Two resistive sensors
Resistive sensor 1
Resistive sensor 2
Not available with 2-wire current loop
operation
3
One resistive sensor at both
inputs
Resistive sensor 1
(normal speed)
Resistive sensor 1
(low speed)
Not available with 2-wire current loop
operation
TOP1/2
INP1/2
INN1/2
BOT1/2
Rbr
Cbr
Cbr
VSS
Figure 6: Bridge Sensor Type 1
TOP1
INP1
INN1
BOT1
TOP2
INP2
INN2
BOT2
Rbr
Rbr
Cbr
Cbr
VSS
Cbr
Cbr
Figure 7: Bridge Sensor Type 2
TOP1
INP1
INN1
BOT1
TOP2
INP2
INN2
BOT2
Rbr
Cbr
VSS
VSS
Cbr
Figure 8: Bridge Sensor Type 3
The resistive bridge can be sourced in either Constant Voltage mode (V-source) or in Constant Current mode (I-
source), requires low resistance.



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