參數(shù)資料
型號(hào): ADC121S625CIMMX
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類(lèi): ADC
英文描述: 12-Bit, 50 ksps to 200 ksps, Differential Input, Micro Power Sampling A/D Converter
中文描述: 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8
封裝: MSOP-8
文件頁(yè)數(shù): 4/20頁(yè)
文件大小: 1049K
代理商: ADC121S625CIMMX
ADC121S625 Converter Electrical Characteristics
(Note 8) (Continued)
The following specifications apply for V
= +4.5V to 5.5V, V
= 2.5V, f
= 0.8 to 3.2 MHz, f
IN
= 20 kHz, C
L
= 100 pF, un-
less otherwise noted.
Boldface limits apply for T
A
= T
MIN
to T
MAX
: all other limits T
A
= 25C.
Symbol
Parameter
Conditions
Typical
Limits
Units
(Note 7)
ANALOG INPUT CHARACTERISTICS
I
REF
Reference Current
CS low, f
SCLK
= 3.2 MHz,
f
S
= 200 ksps, output = FF8h
CS low, f
SCLK
= 3.2 MHz,
f
S
= 50 ksps, output = FF8h
CS low, f
SCLK
= 3.2 MHz,
12.5 ksps, output = FF8h
CS high, f
SCLK
= 0
12
μA
3
μA
0.7
μA
0.3
μA
DIGITAL INPUT CHARACTERISTICS
V
IH
Input High Voltage
V
IL
Input Low Voltage
I
IN
Input Current
C
IND
Input Capacitance
DIGITAL OUTPUT CHARACTERISTICS
V
A
= 4.5V to 5.5V
V
A
= 4.5V to 5.5V
V
IN
= 0V or V
A
2.4
0.8
1
4
V (min)
V (max)
μA (max)
pF (max)
±
0.03
2
V
OH
Output High Voltage
V
A
= 4.5V to 5.5V, I
SOURCE
= 250 μA
V
A
= 4.5V to 5.5V, I
SOURCE
= 2 mA
V
A
= 4.5V to 5.5V, I
SINK
= 250 μA
V
A
= 4.5V to 5.5V, I
SOURCE
= 2 mA
V
A
0.05
V
A
0.1
0.02
0.1
V
A
0.2
V (min)
V
V (max)
V
V
OL
Output Low Voltage
0.4
I
OZH
,
I
OZL
C
OUT
TRI-STATE Leakage Current
±
0.03
±
1
μA (max)
TRI-STATE Output Capacitance
Output Coding
POWER SUPPLY CHARACTERISTICS
2
4
pF (max)
Binary 2’S Complement
V
A
Analog Supply Voltage
4.5
5.5
V (min)
V (max)
I
A
Active
Supply Current, Normal Mode
(Operational)
f
SCLK
= 3.2 MHz, f
SMPL
= 200 ksps,
f
IN
= 20 kHz, C
L
= 15pF
f
SCLK
= 3.2 MHz, f
SMPL
= 12.5 ksps,
C
L
= 15pF, Power Down between
conversions
f
SCLK
= 0.8 MHz, f
SMPL
= 50 ksps,
C
L
= 15pF
f
SCLK
= 0.2 MHz, f
SMPL
= 12.5 ksps,
C
L
= 15pF (Note 10)
f
SCLK
= 0
f
SCLK
= 3.2 MHz
f
SCLK
= 3.2 MHz, f
SMPL
= 200 ksps,
f
IN
= 20 kHz, C
L
= 15pF
f
SCLK
= 3.2 MHz, f
SMPL
= 12.5 ksps,
C
L
= 15pF, Power Down between
conversions
f
SCLK
= 0.8 MHz, f
SMPL
= 50 ksps,
C
L
= 15pF
f
SCLK
= 0.2 MHz, f
SMPL
= 12.5 ksps,
C
L
= 15pF (Note 10)
f
SCLK
= 0
f
SCLK
= 3.2 MHz
410
510
μA (max)
31
μA
242
μA
200
μA
I
A
Shutdown
Supply Current, Shutdown (CS high)
0.01
6
2
μA (max)
μA
PWR
Active
Power Consumption, Normal Mode
(Operational)
2.25
2.8
mW (max)
0.18
mW
1.33
mW
1.1
mW
PWR
Shutdown
Power Consumption, Shutdown (CS
high)
0.06
33
11
μW (max)
μW
A
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