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參數(shù)資料
| 型號： | AD8402 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | 2-Channel, 256-Position Digital Potentiometer |
| 中文描述： | 2通道，256位數(shù)字電位器 |
| 文件頁數(shù)： | 7/20頁 |
| 文件大小： | 496K |
| 代理商： | AD8402 |
AD8400/AD8402/AD8403
REV. B
–7–
AD8400 PIN DESCRIPTIONS
Pin
Name
Description
1
2
3
B1
GND
CS
Terminal B RDAC
Ground
Chip Select Input, Active Low. When
CS
returns high data in the serial input register is
loaded into the DAC register.
Serial Data Input
Serial Clock Input, positive edge triggered
Positive power supply, specified for operation
at both +3 V and +5 V.
Wiper RDAC, addr = 00
2
Terminal A RDAC
4
5
6
SDI
CLK
V
DD
7
8
W1
A1
AD8402 PIN DESCRIPTIONS
Pin
Name
Description
1
2
3
4
5
6
AGND
B2
A2
W2
DGND
SHDN
Analog Ground*
Terminal B RDAC #2
Terminal A RDAC #2
Wiper RDAC #2, Addr = 01
2
Digital Ground*
Terminal A open circuit. Shutdown controls
Variable Resistors #1 and #2
Chip Select Input, Active Low. When
CS
returns high data in the serial input register is
decoded based on the address bits and loaded
into the target DAC register.
Serial Data Input
Serial Clock Input, positive edge triggered
Active low reset to midscale; sets RDAC
registers to 80
H
Positive power supply, specified for operation
at both +3 V and +5 V
Wiper RDAC #1, addr = 00
2
Terminal A RDAC #1
Terminal B RDAC #1
7
CS
8
9
10
SDI
CLK
RS
11
V
DD
12
13
14
W1
A1
B1
*All AGNDs must be connected to DGND.
AD8403 PIN DESCRIPTIONS
Pin
Name
Description
1
2
3
4
5
6
7
8
9
10
AGND2
B2
A2
W2
AGND4
B4
A4
W4
DGND
SHDN
Analog Ground #2*
Terminal B RDAC #2
Terminal A RDAC #2
Wiper RDAC #2, addr = 01
2
Analog Ground #4*
Terminal B RDAC #4
Terminal A RDAC #4
Wiper RDAC #4, addr = 11
2
Digital Ground*
Active Low Input. Terminal A open circuit.
Shutdown controls variable resistors #1
through #4
Chip Select Input, Active Low. When
CS
returns high data in the serial input register
is decoded based on the address bits and
loaded into the target DAC register.
Serial Data Input
Serial Data Output, Open Drain transistor
requires pull-up resistor
Serial Clock Input, positive edge triggered
Active low reset to midscale; sets RDAC
registers to 80
H
Positive power supply, specified for
operation at both +3 V and +5 V
Analog Ground #3*
Wiper RDAC #3, addr = 10
2
Terminal A RDAC #3
Terminal B RDAC #3
Analog Ground #1*
Wiper RDAC #1, addr = 00
2
Terminal A RDAC #1
Terminal B RDAC #1
11
CS
12
13
SDI
SDO
14
15
CLK
RS
16
V
DD
17
18
19
20
21
22
23
24
AGND3
W3
A3
B3
AGND1
W1
A1
B1
*All AGNDs must be connected to DGND.
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相關代理商/技術參數(shù) |
參數(shù)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(shù)據(jù)采集 - 數(shù)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(shù):1 溫度系數(shù):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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