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參數資料
| 型號： | AD8402 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 數字電位計 |
| 英文描述： | 2-Channel, 256-Position Digital Potentiometer |
| 中文描述： | 2通道，256位數字電位器 |
| 文件頁數： | 8/20頁 |
| 文件大小： | 496K |
| 代理商： | AD8402 |
CODE – Decimal
10
8
0
0
32
256
64
96
128
160
192
224
6
4
2
R
V
DD
= +3V OR +5V
R
WB
R
WA
Figure 2. Wiper to End Terminal
Resistance vs. Code
DIGITAL INPUT CODE – Decimal
1
0.5
–1
0
32
256
64
96
128
160
192
224
0
–0.5
V
DD
= +5V
T
A
= –40
°
C
T
A
= +25
°
C
T
A
= +85
°
C
R
Figure 5. Resistance Step Position
Nonlinearity Error vs. Code
DIGITAL INPUT CODE – Decimal
1
0.5
–1
0
32
256
64
96
128
160
192
224
0
–0.5
I
T
A
= –40
°
C
T
A
= +25
°
C
T
A
= +85
°
C
V
DD
= +5V
Figure 8. Potentiometer Divider
Nonlinearity Error vs. Code
AD8400/AD8402/AD8403–Typical Performance Characteristics
I
WA
CURRENT – mA
5
4
0
0
7
1
4
5
3
2
1
2
3
6
80
H
40
H
20
H
FF
H
CODE = 10
H
T
A
= +25
°
C
V
DD
= +5V
V
W
05
H
Figure 3. Resistance Linearity vs.
Conduction Current
WIPER RESISTANCE –
F
60
48
0
40.0 42.5
65.0
45.0 47.5 50.0 52.5 55.0 57.5 60.0 62.5
36
24
12
SS = 1205 UNITS
V
DD
= 4.5V
T
A
= +25
°
C
Figure 6. 10 k
Wiper-Contact-
Resistance Histogram
WIPER RESISTANCE –
F
60
48
0
35
37
55
39
41
43
45
47
49
51
53
36
24
12
SS = 184 UNITS
V
DD
= 4.5V
T
A
= +25
°
C
Figure 9. 50 k
Wiper-Contact-
Resistance Histogram
WIPER RESISTANCE –
F
60
48
0
40.0 42.5
65.0
45.0 47.5 50.0 52.5 55.0 57.5 60.0 62.5
36
24
12
SS = 184 UNITS
V
DD
= 4.5V
T
A
= +25
°
C
Figure 4. 100 k
Wiper-Contact-
Resistance Histogram
TEMPERATURE –
°
C
N
10
8
0
–75
–50
125
–25
0
25
50
75
100
6
4
2
R
AB
(END-TO-END)
R
WB
(WIPER-TO-END)
CODE = 80
H
Figure 7. Nominal Resistance vs.
Temperature
CODE – DECIMAL
P
°
70
60
–10
0
32
160
64
96
128
30
20
10
0
50
40
192 224
256
V
DD
= +5V
T
A
= –40
°
C/+85
°
C
V
A
= 2.00V
V
B
= 0V
Figure 10.
D
V
WB
/
D
T Potentiometer
Mode Tempco
–8–
REV. B
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD8402AN1 | 制造商:Rochester Electronics LLC 功能描述:DUAL 8-BIT POTENTIOMETER 1K OHM - Bulk |
| AD8402AN10 | 功能描述:IC DGTL POT 8BIT 10K 2CH 14-DIP RoHS:否 類別:集成電路 (IC) >> 數據采集 - 數字電位器 系列:- 標準包裝:3,000 系列:DPP 接片:32 電阻（歐姆）:10k 電路數:1 溫度系數:標準值 300 ppm/°C 存儲器類型:非易失 接口:3 線串行（芯片選擇，遞增，增/減） 電源電壓:2.5 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤 供應商設備封裝:8-TDFN（2x3） 包裝:帶卷 (TR) |
| AD8402AN100 | 制造商:Rochester Electronics LLC 功能描述:DUAL 8-BIT POTENTIOMETER - Bulk 制造商:Analog Devices 功能描述:SEMICONDUCTORSLINEAR |
| AD8402AN50 | 制造商:Rochester Electronics LLC 功能描述:DUAL 8-BIT POTENTIOMETER - Bulk |
| AD8402-AN50 | 制造商:Analog Devices 功能描述: |
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