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參數(shù)資料
| 型號(hào)： | ADC10321CIVT |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | ADC |
| 英文描述： | 10-Bit, 20MSPS, 98mW A/D Converter with Internal Sample and Hold |
| 中文描述： | 1-CH 10-BIT RESISTANCE LADDER ADC, PARALLEL ACCESS, PQFP32 |
| 封裝： | TQFP-32 |
| 文件頁數(shù)： | 6/16頁 |
| 文件大?。?/td> | 414K |
| 代理商： | ADC10321CIVT |
Converter Electrical Characteristics
(Continued)
The following specifications apply for V
= +5.0V
, V
= 5.0V
, V
D
I/O = 5.0V
DC
, V
+ = +3.5V
, V
= +1.5V
DC
,
C
L
= 20pF, f
CLK
= 20MHz, R
S
= 25
.
Boldface limits apply for T
A
= T
MIN
to T
MAX
:
all other limits T
A
= 25C(Note 7)
Symbol
Parameter
Conditions
Typical
(Note 8)
Limits
(Note 9)
Units
Reference and Analog Input Characteristics
Reference Ladder
Resistance
V
REF
+
Positive Reference Voltage
Negative Reference
Voltage
(V
REF
+)
(V
REF
)
R
REF
1000
850
1150
4.0
(min)
(max)
V(max)
3.5
V
REF
1.5
1.3
V(min)
Total Reference Voltage
2.0
1.0
2.7
V(min)
V(max)
DC and Logic Electrical Characteristics
The following specifications apply for V
A
= +5.0V
, V
= +5.0V
, V
D
I/O = 5.0V
DC
, V
+ = +3.5V
DC
, V
= +1.5V
DC
,
C
L
= 20 pF, f
CLK
= 20MHz, R
S
= 25
.
Boldface limits apply for T
A
= T
MIN
to T
MAX
:
all other limits T
A
= 25C(Note 7)
Symbol
Parameter
Conditions
Typical
(Note 8)
Limits
(Note 9)
Units
CLK, OE, PD, Digital Input Characteristics
V
IH
Logical
″
1
″
Input Voltage
V
IL
Logical
″
0
″
Input Voltage
I
IH
Logical
″
1
″
Input Current
I
IL
Logical
″
0
″
Input Current
D00 - D13 Digital Output Characteristics
Logical
″
1
″
Output
Voltage
Logical
″
0
″
Output
Voltage
TRI-STATE Output
Current
I
OS
Output Short Circuit
Current
V
D
= 5.5V
V
D
= 4.5V
V
IH
= V
D
V
IL
= DGND
2.0
1.0
V(min)
V(max)
μA
μA
10
10
V
OH
V
D
I/O = + 4.5V, I
OUT
= 0.5mA
V
D
I/O = + 2.7V, I
OUT
= 0.5mA
V
D
I/O = + 4.5V, I
OUT
= 1.6mA
V
D
I/O = + 2.7V, I
OUT
= 1.6mA
V
OUT
= DGND
V
OUT
= V
D
V
D
I/O = 3V
V
D
I/O = 5V
4.0
2.4
0.4
0.4
V(min)
V(min)
V(max)
V(max)
μA
μA
mA
mA
V
OL
I
OZ
10
10
±
12
±
25
Power Supply Characteristics
I
A
Analog Supply Current
PD = LOW, Ref not included
PD = HIGH, Ref not included
PD = LOW, Ref not included
PD = HIGH, Ref not included
14.5
0.5
5
0.2
98
16
mA(max)
I
D
+
I
D
I/O
P
D
Digital Supply Current
6
mA(max)
Power Consumption
110
mW (max)
AC Electrical Characteristics
The following specifications apply for V
= +5.0V
, V
I/O = 5.0V
, V
+ = +3.5V
DC
, V
REF
= +1.5V
DC
, f
CLK
= 20MHz,
t
= t
= 5ns, R
S
= 25
. C
L
(data bus loading) = 20 pF,
Boldface limits apply for T
A
= T
MIN
to T
MAX
:
A
=
25C(Note 7)
Symbol
Parameter
Conditions
Typical
(Note 8)
25
1
Limits
(Note 9)
20
Units
(Limits)
MHz(min)
MHz(max)
ns(min
ns(min)
%(min)
%(max)
Clock Cycles
ns(max)
f
CLK1
f
CLK2
t
CH
t
CL
Maximum Clock Frequency
Minimum Clock Frequency
Clock High Time
Clock Low Time
23
23
45
55
2.0
5
Duty Cycle
50
Pipeliine Delay (Latency)
Clock Input Rise and Fall Time
t
rc
, t
fc
A
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