參數(shù)資料
型號: AD8403ARZ50-REEL
廠商: Analog Devices Inc
文件頁數(shù): 5/32頁
文件大小: 0K
描述: IC POT DIG QUAD 50K 8BIT 24SOIC
標準包裝: 1,000
接片: 256
電阻(歐姆): 50k
電路數(shù): 4
溫度系數(shù): 標準值 500 ppm/°C
存儲器類型: 易失
接口: 4 線 SPI(芯片選擇)
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 24-SOIC(0.295",7.50mm 寬)
供應商設備封裝: 24-SOIC W
包裝: 帶卷 (TR)
AD8400/AD8402/AD8403
Rev. E | Page 13 of 32
Table 9. AD8403 Pin Function Descriptions
Pin No.
Mnemonic
Description
1
AGND2
Analog Ground 2.1
2
B2
Terminal B RDAC 2.
3
A2
Terminal A RDAC 2.
4
W2
Wiper RDAC 2, Addr = 012.
5
AGND4
Analog Ground 4.1
6
B4
Terminal B RDAC 4.
7
A4
Terminal A RDAC 4.
8
W4
Wiper RDAC 4, Addr = 112.
9
DGND
Digital Ground.1
10
SHDN
Active Low Input. Terminal A open circuit. Shutdown controls Variable Resistor 1 through Variable Resistor 4.
11
CS
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.
12
SDI
Serial Data Input.
13
SDO
Serial Data Output. Open drain transistor requires a pull-up resistor.
14
CLK
Serial Clock Input, Positive Edge Triggered.
15
RS
Active Low Reset to Midscale. Sets RDAC registers to 80H.
16
VDD
Positive Power Supply. Specified for operation at both 3 V and 5 V.
17
AGND3
Analog Ground 3.1
18
W3
Wiper RDAC 3, Addr = 102.
19
A3
Terminal A RDAC 3.
20
B3
Terminal B RDAC 3.
21
AGND1
Analog Ground 1.1
22
W1
Wiper RDAC 1, Addr = 002.
23
A1
Terminal A RDAC 1.
24
B1
Terminal B RDAC 1.
1 All AGND pins must be connected to DGND.
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