TMS37122 Datasheet, PDF (63/73 Pages) Texas Instruments – TIRIS Automotive Devices Analog Front End IC TMS37122

August ’01
Chapter 4. Product Specification Data
4.2.4 IC Characteristics over Operating Free-air Temperature Range
4.2.4.1 General IC Characteristics
Parameter
Package
Sign
Note
Min Nom Max Unit
16-pin
TSSOP
4.2.4.2 Input Capacitances
Parameter
Effective Input
Capacitance
(CRFx=CIx+ dCI/dV)
Sign
CRF1
Input Capacitance
CI1
Effective Input
Capacitance
(CRFx=CIx+ dCI/dV)
Input Capacitance
Temperature Coefficient of
CI1, C2
Input Capacitance Change
(CT=off)
Input Capacitance Change
(CT=on)
Input Capacitance Change
(CT=off)
Input Capacitance Change
(CT=on)
CRF2
CRF3
CI2
CI3
dCI/dT
dCI/dV
dCI/dV
dCI/dV
dCI/dV
Note
VCL = 5 V
25 ºC
CT = off
VCL<0.5 V
25 ºC,
CT = off
VCL = 5 V
25 ºC
CT = off
VCL<0.5 V
25 ºC,
CT = off
VCL = 3...5V
25 ºC
VCL = 3...5V
25 ºC
VCL = 3...5V
25 ºC
VC L= 3...5V
25 ºC
Min Nom Max Unit
19
23
27
pF
26
pF
12
16
20
pF
19
pF
-0.1 pF/K
-0.4
-0.5 pF/V
-0.05 -0.1 pF/V
-1.1
pF/V
-0.2
pF/V
4.2.4.3 Modulation Capacitor
Parameter
Modulation Capacitor
Voltage Coefficient of CM
Temperature Coefficient of CM
Sign
CM
dCM/dV
dCM/dT
Note
25 ºC
25 ºC
Min Nom Max Unit
89.2 105 120.8 pF
0.2 pF/V
0.02 pF/K
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