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AS1538 Scheda tecnica(PDF) 5 Page - ams AG

Il numero della parte AS1538
Spiegazioni elettronici  8/4-Channel, 12-Bit I2C Analog-to-Digital Converter
PDF  20 Pages
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Produttore elettronici  AMSCO [ams AG]
Homepage  http://www.ams.com
Logo AMSCO - ams AG

AS1538 Scheda tecnica(HTML) 5 Page - ams AG

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www.austriamicrosystems.com
Revision 1.03
5 - 20
AS1538/AS1540
Data Sheet - E l e c t r i c a l C h a r a c t e r i s t i c s
Timing Characteristics
+VDD = +2.7 to 5.25V, TAMB = -40 to +85ºC (unless otherwise specified). All values referenced to VIHMIN and VILMAX
levels.
CMOS Digital I/O
VIH
Input High Logic Level
+VDD
x 0.7
+VDD
+ 0.5
V
VIL
Input Low Logic Level
-0.3
+VDD
x 0.3
V
VOL
Output Low Logic Level
3mA sink current
0.4
V
IIH
Input High Leakage Current
VIH = +VDD
1µA
IIL
Input Low Leakage Current
VIL = GND
-1
µA
Data Format
Straight binary
Power Supply Requirements
+VDD
Power Supply Voltage
Specified performance
2.7
5.25
V
IQSTAT
Analog Current in Static Mode,
3.6V
PD = 00 Full Power-Down
0.04
1.2
µA
PD = 01 Internal Ref. OFF, ADC ON
400
500
PD = 10 Internal Ref. ON, ADC OFF
500
600
PD = 11 Internal Ref. ON, ADC ON
800
900
Analog Current in Static Mode,
5.25V
PD = 00 Full Power-Down
0.04
1.5
µA
PD = 01 Internal Ref. OFF, ADC ON
450
550
PD = 10 Internal Ref. ON, ADC OFF
550
650
PD = 11 Internal Ref. ON, ADC ON
850
950
IQ
Quiescent Current at Full
Speed, 3.6V
PD = 01 Internal Ref. OFF, ADC ON
500
600
µA
PD = 11 Internal Ref. ON, ADC ON
850
950
Quiescent Current at Full
Speed, 5.25V
PD = 01 Internal Ref. OFF, ADC ON
650
800
µA
PD = 11 Internal Ref. ON, ADC ON
915
1150
1. Guaranteed by design and characterized on sample base.
2. THD measure out to 5th harmonic.
Table 4. Timing Characteristics
Symbol
Parameter
Condition
Min
Typ
Max
Unit
fSCL
SCL Frequency
0.1
3.4
MHz
tBUF
Bus Free Time Between
STOP and START Conditions
1.3
µs
THOLDSTART
Hold Time for Repeated
START Condition
160
ns
tLOW
SCL Low Period
50
75
ns
tHIGH
SCL High Period
50
75
ns
TSETUPSTART
Setup Time for Repeated
START Condition
100
ns
TSETUPDATA
Data Setup Time
10
ns
THOLDDATA
Data Hold Time
70
ns
TRISESCLK
1
SCL Rise Time
10
40
ns
TRISESCLK1
1
SCL Rise Time after
Repeated START Condition
and After an ACK Bit
10
80
ns
Table 3. Electrical Characteristics
Symbol
Parameter
Condition
Min
Typ
Max
Unit



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