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參數(shù)資料
| 型號(hào)： | AD774BKNZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 12BIT W/BUFF REF 28DIP |
| 標(biāo)準(zhǔn)包裝： | 13 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 125k |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 375mW |
| 電壓電源： | 雙 ± |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 28-DIP（0.600"，15.24mm） |
| 供應(yīng)商設(shè)備封裝： | 28-PDIP |
| 包裝： | 管件 |
| 輸入數(shù)目和類型： | 2 個(gè)單端，單極；2 個(gè)單端，雙極 |
J Grade
K Grade
A Grade
B Grade
T Grade
Model (AD674B or AD774B)
Min Typ
Max Min Typ Max
Min Typ Max
Min
Typ Max
Unit
RESOLUTION
12
Bits
LINEARITY ERROR @ 25
°C
1
1/2
1
1/2
LSB
TMIN to TMAX
1
1/2
1
1/2
1
LSB
DIFFERENTIAL LINEARITY ERROR
(Minimum Resolution for Which No
Missing Codes are Guaranteed)
12
12
Bits
UNIPOLAR OFFSET
1 @ 25
°C
2
LSB
BIPOLAR OFFSET
1 @ 25
°C
6
3
6
3
LSB
FULL-SCALE CALIBRATION ERROR
1, 2
@ 25
°C (with Fixed 50 Resistor
from REF OUT to REF IN)
0.1
0.25
0.1
0.125
0.1 0.25
0.1
0.125
0.1 0.125
% of FS
TEMPERATURE RANGE
0
70
0
70
–40
+85
–40
+85
–55
+125
°C
TEMPERATURE DRIFT
3
(Using Internal Reference)
Unipolar
2
1
2
1
LSB
Bipolar Offset
2
1
2
1
2
LSB
Full-Scale Calibration
6
2
8
5
7
LSB
POWER SUPPLY REJECTION
Max Change in Full-Scale Calibration
VCC = +15 V
± 1.5 V or +12 V ± 0.6 V
2
1
2
1
LSB
VLOGIC = +5 V
± 0.5 V
1/2
LSB
VEE = –15 V
± 1.5 V or –12 V ± 0.6 V
2
1
2
1
LSB
ANALOG INPUT
Input Ranges
Bipolar
–5
+5
–5
+5
–5
+5
–5
+5
–5
+5
V
–10
+10
–10
+10
–10
+10
–10
+10
–10
+10
V
Unipolar
0
10
0
10
0
10
0
10
0
10
V
0
20
0
20
0
20
0
20
0
20
V
Input Impedance
10 V Span
3
5
73
5
73
5
73
5
73
5
7
k
20 V Span
6
10
14
6
10
14
6
10
14
6
10
14
6
10
14
k
POWER SUPPLIES
Operating Range
VLOGIC
4.5
5.5
4.5
5.5
4.5
5.5
4.5
5.5
4.5
5.5
V
VCC
11.4
16.5
11.4
16.5
11.4
16.5
11.4
16.5
11.4
16.5
V
VEE
–16.5
–11.4 –16.5
–11.4
–16.5
–11.4
–16.5
–11.4
V
Operating Current
ILOGIC
3.5
7
3.5
7
3.5 7
3.5
7
3.5 7
mA
ICC
3.5
7
3.5
7
3.5 7
3.5
7
3.5 7
mA
IEE
10
14
10
14
10
14
10
14
10
14
mA
POWER CONSUMPTION
220
375
220 375
mW
4
175
mW
5
INTERNAL REFERENCE VOLTAGE
9.9
10.0 10.1
9.9
10.0 10.1
9.9
10.0 10.1
9.9
10.0 10.1
9.9
10.0 10.1
V
Output Current
(Available for External Loads)
2.0
mA
(External Load Should Not
Change During the Conversion)
NOTES
1Adjustable to zero.
2Includes internal voltage reference error.
3Maximum change from 25
°C value to the value at TMIN or TMAX.
4Tested with REF OUT tied to REF IN through 50
resistor, VCC = +16.5 V, VEE = –16.5 V, VLOGIC = +5.5 V, and outputs in high-Z mode.
5Tested with REF OUT tied to REF IN through 50
resistor, V
CC = +12 V, VEE = –12 V, VLOGIC = +5 V, and outputs in high-Z mode.
Specifications subject to change without notice.
Specifications shown in boldface are tested on all devices at final electrical test at TMIN, 25
°C, and T
MAX. 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.
AD674B/AD774B–SPECIFICATIONS (T
MIN to TMAX with VCC = +15 V
10% or +12 V
5%,
VLOGIC = +5 V
10%, VEE = –15 V
10% or –12 V
5%, unless otherwise noted.)
REV. C
–2–
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