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ADC12138CIWM bảng dữ liệu(PDF) 7 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
tên linh kiện ADC12138CIWM
Giải thích chi tiết về linh kiện  Self-Calibrating 12-Bit Plus Sign Serial I/O A/D Converters with MUX and Sample/Hold
PDF  42 Pages
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ADC12138CIWM bảng dữ liệu(HTML) 7 Page - National Semiconductor (TI)

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DC and Logic Electrical Characteristics
The following specifications apply for (V
+ =V
A+=VD+ = +5V, VREF+ = +4.096V, and fully-differential input with fixed 2.048V
common-mode voltage) or (V
+ =V
A+=VD+ = +3.3V, VREF+ = +2.5V and fully-differential input with fixed 1.250V common-
mode voltage), V
REF− = 0V, 12-bit + sign conversion mode, source impedance for analog inputs, VREF− and VREF+
≤ 25Ω,f
CK
=f
SK = 5 MHz, and 10 (tCK) acquisition time unless otherwise specified. Boldface limits apply for TA =TJ =TMIN to TMAX; all
other limits T
A =TJ = 25˚C. (Notes 7, 8, 9)
Symbol
Parameter
Conditions
Typical
(Note 10)
V
+ =V
A+=
V
D+ = 3.3V
Limits
(Note 11)
V
+ =V
A+=
V
D+=5V
Limits
(Note 11)
Units
(Limits)
CCLK, CS, CONV, DI, PD AND SCLK INPUT CHARACTERISTICS
V
IN(1)
Logical “1” Input Voltage
V
A+=VD+=V
+ +10%
2.0
2.0
V (min)
V
IN(0)
Logical “0” Input Voltage
V
A+=VD+=V
+ −10%
0.8
0.8
V (max)
I
IN(1)
Logical “1” Input Current
V
IN =V
+
0.005
1.0
1.0
µA (max)
I
IN(0)
Logical
′“0” Input Current
V
IN = 0V
−0.005
−1.0
−1.0
µA (min)
DO, EOC AND DOR DIGITAL OUTPUT CHARACTERISTICS
V
OUT(1)
Logical “1” Output Voltage
V
A+=VD+=V
+ − 10%,
I
OUT = −360 µA
2.4
2.4
V (min)
V
A+=VD+=V
+ − 10%,
I
OUT = −10 µA
2.9
4.25
V (min)
V
OUT(0)
Logical “0” Output Voltage
V
A+=VD+=V
+ − 10%
I
OUT = 1.6 mA
0.4
0.4
V (max)
I
OUT
TRI-STATE Output Current
V
OUT =0V
V
OUT =V
+
−0.1
−0.1
−3.0
3.0
−3.0
3.0
µA (max)
µA (max)
+I
SC
Output Short Circuit Source Current
V
OUT = 0V
−14
mA
−I
SC
Output Short Circuit Sink Current
V
OUT =VD+16
mA
POWER SUPPLY CHARACTERISTICS
I
D+
Digital Supply Current
Awake (Active)
1.5
2.5
mA (max)
CS = HIGH, Powered Down,
CCLK on
600
µA
CS = HIGH, Powered Down,
CCLK off
20
µA
I
A+
Positive Analog Supply Current
Awake (Active)
3.0
4.0
mA (max)
CS = HIGH, Powered Down,
CCLK on
10
µA
CS = HIGH, Powered Down,
CCLK off
0.1
µA
I
REF
Reference Input Current
CS = HIGH, Powered Down,
CCLK on
70
µA
CS = HIGH, Powered Down,
CCLK off
0.1
µA
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