參數(shù)資料
型號： ADCS7478
廠商： National Semiconductor Corporation
元件分類： 串行ADC
英文描述： 1MSPS, 12-/10-/8-Bit A/D Converters in 6-Lead SOT-23
中文描述： 1MSPS，12/10/8位的A / D轉(zhuǎn)換器采用6引腳SOT - 23
文件頁數(shù)： 4/22頁
文件大?。?/td> 514K
代理商： ADCS7478
ADCS7476/ADCS7477/ADCS7478 Specifications
(Note 2)
ADCS7476 Converter Electrical Characteristics
(Continued)
The following specifications apply for V
= +2.7V to 5.25V, f
SCLK
= 20 MHz, f
SAMPLE
= 1 MSPS unless otherwise noted.
Bold-
face limits apply for T
A
= 40C to +85C
: all other limits T
A
= 25C, unless otherwise noted.
Symbol
Parameter
POWER SUPPLY CHARACTERISTICS
V
DD
= +4.75V to +5.25V,
SCLK On or Off
V
DD
= +2.7V to +3.6V,
SCLK On or Off
V
DD
= +4.75V to +5.25V,
f
SAMPLE
= 1 MSPS
V
DD
= +2.7V to +3.6V,
f
SAMPLE
= 1 MSPS
V
DD
= +5V, SCLK Off
V
DD
= +5V, SCLK On
Power Consumption, Normal Mode
(Operational)
V
DD
= +3V, f
SAMPLE
= 1 MSPS
V
DD
= +5V, SCLK Off
V
DD
= +3V, SCLK Off
ANALOG INPUT CHARACTERISTICS
V
IN
Input Range
I
DCL
DC Leakage Current
C
INA
Analog Input Capacitance
DIGITAL INPUT CHARACTERISTICS
V
IH
Input High Voltage
V
DD
= +5V
V
DD
= +3V
I
IN
Input Current
V
IN
= 0V or V
DD
C
IND
Digital Input Capacitance
DIGITAL OUTPUT CHARACTERISTICS
I
SOURCE
= 200 μA,
V
DD
= +2.7V to +5.25V
V
OL
Output Low Voltage
I
SINK
= 200 μA
I
OL
TRI-STATE Leakage Current
C
OUT
TRI-STATE Output Capacitance
Output Coding
AC ELECTRICAL CHARACTERISTICS
f
SCLK
Clock Frequency
(Continued)
Conditions
Typical
Limits
Units
I
DD
Normal Mode (Static)
2
mA
1
mA
Normal Mode (Operational)
2.0
3.5
mA (max)
0.6
1.6
mA (max)
Shutdown Mode
0.5
60
10
2
2.5
1.5
μA
μA
P
D
V
DD
= +5V, f
SAMPLE
= 1 MSPS
17.5
4.8
mW (max)
mW (max)
μW
μW
Power Consumption, Shutdown Mode
0 to V
DD
V
±
1
μA (max)
pF
30
2.4
0.8
0.4
±
1
4
V (min)
V (max)
V (max)
μA (max)
pF (max)
V
IL
Input Low Voltage
±
10 nA
2
V
OH
Output High Voltage
V
DD
0.2
V (min)
0.4
±
10
4
V (max)
μA (max)
pF (max)
2
Straight (Natural) Binary
20
40
60
400
MHz (max)
% (min)
% (max)
ns (max)
MSPS
(max)
ns
ps
DC
SCLK Duty Cycle
t
TH
Track/Hold Acquisition Time
f
RATE
Throughput Rate
See Serial Interface Section
1
t
AD
t
AJ
Aperture Delay
Aperture Jitter
3
30
A
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