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參數(shù)資料
| 型號： | AD670 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Low Cost Signal Conditioning 8-Bit ADC |
| 中文描述： | 信號調理低成本8位ADC |
| 文件頁數(shù)： | 3/12頁 |
| 文件大?。?/td> | 364K |
| 代理商： | AD670 |
Model
AD670A
Typ
AD670B
Typ
AD670S
Typ
Min
Max
Min
Max
Min
Max
Units
OPERATING TEMPERATURE RANGE
–40
+85
–40
+85
–55
+125
°
C
Bit
μ
s
LSB
LSB
RESOLUTION
8
8
8
CONVERSION TIME
10
10
10
RELATIVE ACCURACY
T
MIN
to T
MAX
DIFFERENTIAL LINEARITY ERROR
1
T
MIN
to T
MAX
GAIN ACCURACY
@ +25
°
C
T
MIN
to T
MAX
UNIPOLAR ZERO ERROR
@ +25
°
C
T
MIN
to T
MAX
BIPOLAR ZERO ERROR
@ +25
°
C
T
MIN
to T
MAX
ANALOG INPUT RANGES
DIFFERENTIAL ( –V
IN
to +V
IN
)
Low Range
6
1/2
6
1/2
6
1/4
6
1/2
6
1/2
6
1
GUARANTEED NO MISSING CODES ALL GRADES
6
1.5
6
2.5
6
0.75
6
1.5
6
1.5
6
2.5
LSB
LSB
6
1.0
6
2.0
6
0.5
6
1.0
6
1.0
6
2.0
LSB
LSB
6
1.0
6
2.0
6
0.5
6
1.0
6
1.0
6
2.0
LSB
LSB
0 to +255
–128 to +127
0 to +2.55
–1.28 to +1.27
0 to +255
–128 to +127
0 to +2.55
–1.28 to +1.27
0 to +255
–128 to +127
0 to +2.55
–1.28 to +1.27
mV
mV
V
V
High Range
ABSOLUTE (Inputs to Power GND)
Low Range T
MIN
to T
MAX
High Range T
MIN
to T
MAX
BIAS CURRENT (255 mV RANGE)
T
MIN
to T
MAX
OFFSET CURRENT (255 mV RANGE)
T
MIN
to T
MAX
2.55 V RANGE INPUT RESISTANCE
–0.150
–1.50
V
CC
– 3.5 –0.150
V
CC
V
CC
– 3.5
V
CC
–0.150
–1.50
V
CC
– 3.5
V
CC
V
V
–1.50
200
500
200
500
200
750
nA
40
200
40
200
40
200
nA
k
8.0
12.0
8.0
12.0
8.0
12.0
2.55 V RANGE FULL-SCALE MATCH
+ AND – INPUT
±
1/2
±
1/2
±
1/2
LSB
COMMON-MODE REJECTION
RATIO (255 mV RANGE)
1
1
1
LSB
COMMON-MODE REJECTION
RATIO (2.55 V RANGE)
1
1
1
LSB
POWER SUPPLY
Operating Range
Current I
Rejection Ratio T
MIN
to T
MAX
DIGITAL OUTPUTS
SINK CURRENT (V
OUT
= 0.4 V)
T
MIN
to T
MAX
SOURCE CURRENT (V
OUT
= 2.4 V)
T
MIN
to T
MAX
THREE-STATE LEAKAGE CURRENT
4.5
5.5
45
0.015
4.5
5.5
45
0.015
4.75
5.5
45
0.015
V
mA
% of FS/%
30
30
30
1.6
1.6
1.6
mA
0.5
0.5
0.5
mA
μ
A
pF
6
40
6
40
6
40
OUTPUT CAPACITANCE
5
5
5
DIGITAL INPUT VOLTAGE
V
INL
V
INH
DIGITAL INPUT CURRENT
(0
≤
V
IN
≤
+5 V)
I
INL
I
INH
INPUT CAPACITANCE
0.8
0.8
0.7
V
V
2.0
2.0
2.0
–100
–100
–100
μ
A
μ
A
pF
+100
+100
+ 100
10
10
10
NOTES
1
Tested at V
CC
= 4.5 V, 5.0 V and 5.5 V for A, B grades; 4.75 V, 5.0 V and 5.5 V for S grade.
Specifications shown in
boldface
are tested on all production units at final electrical test. Results from those tests are used to calculate outgoing quality levels. All min and max specifications
are guaranteed, although only those shown in boldface are tested on all production units.
Specifications subject to change without notice.
AD670
REV. A
–3–
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