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Rainbow-electronics ADC12038 Manual de usuario Pagina 6

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DC and Logic Electrical Characteristics
The following specifications apply for V
a
e
V
A
a
e
V
D
a
ea
5.0 V
DC
,V
REF
a
ea
4.096 V
DC
,V
REF
b
e
0V
DC
, 12-bit
a
sign conversion mode, f
CK
e
f
SK
e
8 MHz for the ADC12H030, ADC12H032, ADC12H034 and ADC12H038, f
CK
e
f
SK
e
5 MHz for the ADC12030, ADC12032, ADC12034 and ADC12038, R
S
e
25X, source impedance for V
REF
a
and V
REF
b
s
25X, fully-differential input with fixed 2.048V common-mode voltage, and 10(t
CK
) acquisition time unless otherwise specified.
Boldface limits apply for T
A
e
T
J
e
T
MIN
to T
MAX
; all other limits T
A
e
T
J
e
25
§
C. (Notes 7, 8 and 9)
Symbol Parameter Conditions
Typical Limits Units
(Note 10) (Note 11) (Limits)
CCLK, CS, CONV, DI, PD AND SCLK INPUT CHARACTERISTICS
V
IN(1)
Logical ‘‘1’’ Input Voltage V
a
e
5.5V 2.0 V (min)
V
IN(0)
Logical ‘‘0’’ Input Voltage V
a
e
4.5V 0.8 V (max)
I
IN(1)
Logical ‘‘1’’ Input Current V
IN
e
5.0V 0.005 1.0 mA (max)
I
IN(0)
Logical ‘‘0’’ Input Current V
IN
e
0V
b
0.005
b
1.0 mA (min)
DO, EOC AND DOR DIGITAL OUTPUT CHARACTERISTICS
V
OUT(1)
Logical ‘‘1’’ Output Voltage V
a
e
4.5V, I
OUT
eb
360 mA 2.4 V (min)
V
a
e
4.5V, I
OUT
eb
10 mA 4.25 V (min)
V
OUT(0)
Logical ‘‘0’’ Output Voltage V
a
e
4.5V, I
OUT
e
1.6 mA 0.4 V (max)
I
OUT
TRI-STATE Output Current V
OUT
e
0V
b
0.1
b
3.0 mA (max)
V
OUT
e
5V 0.1 3.0 mA (max)
a
I
SC
Output Short Circuit Source Current V
OUT
e
0V 14 6.5 mA (min)
b
I
SC
Output Short Circuit Sink Current V
OUT
e
V
D
a
16 8.0 mA (min)
POWER SUPPLY CHARACTERISTICS
I
D
a
Digital Supply Current Awake 1.6 2.5 mA (max)
ADC12030, ADC12032, ADC12034 CS
e
HIGH, Powered Down, CCLK on 600 mA
and ADC12038 CS
e
HIGH, Powered Down, CCLK off 20 mA
Digital Supply Current Awake 2.3 3.2 mA
ADC12H030, ADC12H032, ADC12H034 CS
e
HIGH, Powered Down, CCLK on 0.9 mA
and ADC12H038 CS
e
HIGH, Powered Down, CCLK off 20 mA
I
A
a
Positive Analog Supply Current Awake 2.7 4.0 mA (max)
CS
e
HIGH, Powered Down, CCLK on 10 mA
CS
e
HIGH, Powered Down, CCLK off 0.1 mA
I
REF
Reference Input Current Awake 70 mA
CS
e
HIGH, Powered Down 0.1 mA
6
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