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L9679P Datasheet(PDF) 269 Page - STMicroelectronics

Part # L9679P
Description  Automotive advanced airbag for mid/high end applications and cut-off battery IC
PDF  279 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9679P Datasheet(HTML) 269 Page - STMicroelectronics

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DS11627 Rev 7
269/279
L9679P
Electrical characteristics
278
18.23
Analog to digital converter
All electrical characteristics are valid for the following conditions unless otherwise noted:
40 °C  Ta  +95 °C, VINGOOD0  VIN  35 V.
11
TFALL_ISOK
ISOK fall time
70% to 30%
RISOK = 510 Ω, CISOK = 470 pF
-
-
1.5
µs
12
TPDW_RX
Receiver pulse width
symmetry
TPD_ILRX - TPD_IHRX
-
-
1
µs
13
TPDW_TX
Transmitter pulse width
symmetry
(TPD_ILTX + TFALL_ISOK) – (TPD_IHTX
+ TRISE_ISOK)
-
-
1
µs
Table 70. ISO9141 interface transceiver AC specifications (continued)
N°
Symbol
Parameter
Conditions
Min Typ Max Unit
Table 71. Analog to digital converter
No
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
1
VADC_RANGE ADC input voltage range -
0.1
-
2.5
V
2
VADC_REF ADC reference voltage
-
-1.5%
2.5
+1.5%
V
3
ADC_RES
ADC resolution (1)
Design Info
-
10
-
bit
4
DNL
Differential non linearity
error (DNL)
Separation between adjacent
levels, measured bit to bit of
actual and an ideal output step.
No missing codes
-1
-
+1
LSB
5
INL
Integral non linearity error
(INL)
Maximum difference between the
actual analog value at the
transition between 2 adjacent
steps and its ideal value
-3
-
+3
LSB
6
EQUANT
Quantization error
Design Info
-0.5
-
0.5
LSB
7
TotErr
Total error
Includes INL, DNL, ADC
Reference voltage tolerance and
quantization error
-15
-
+15
LSB
8
TotErr_0v1 ADC total error for 0.1 V
input voltage
-
-5
-
+5
LSB
9
TotErr_2v4 ADC total error for 2.4 V
input voltage
-
-15
-
+15
LSB
10
RLSB_1
Reproducibility:
conversion result
variation for constant
input signal
1x sampling measurements.
Guaranteed by design
-6
-
6
LSB
11
RLSB_4
4x sampling measurements.
Guaranteed by design
-3
-
3
LSB
12
RLSB_8
8x sampling measurements.
Guaranteed by design
-2.5
-
2.5
LSB
13
Pre-ADC
Pre-ADC settling time
-
-
4.81
-
µs



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