V
參數(shù)資料
型號(hào): AD8403ARZ1-REEL
廠商: Analog Devices Inc
文件頁(yè)數(shù): 4/32頁(yè)
文件大小: 0K
描述: IC POT DIG QUAD 1K 8BIT 24SOIC
標(biāo)準(zhǔn)包裝: 1,000
接片: 256
電阻(歐姆): 1k
電路數(shù): 4
溫度系數(shù): 標(biāo)準(zhǔn)值 500 ppm/°C
存儲(chǔ)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(yīng)商設(shè)備封裝: 24-SOIC W
包裝: 帶卷 (TR)
AD8400/AD8402/AD8403
Rev. E | Page 12 of 32
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
B1
1
GND
2
CS
3
SDI
4
A1
8
W1
7
VDD
6
CLK
5
AD8400
TOP VIEW
(Not to Scale)
01
09
2-
00
6
Figure 6. AD8400 Pin Configuration
1
2
3
4
5
6
7
AD8402
B2
A2
W2
CS
SHDN
DGND
AGND
14
13
12
11
10
9
8
A1
W1
VDD
SDI
CLK
RS
B1
TOP VIEW
(Not to Scale)
01
09
2-
00
7
Figure 7. AD8402 Pin Configuration
AGND2
1
B2
2
A2
3
W2
4
B1
24
A1
23
W1
22
AGND1
21
AGND4
5
B4
6
A4
7
B3
20
A3
19
W3
18
W4
8
AGND3
17
DGND
9
VDD
16
SHDN
10
RS
15
CS
11
CLK
14
SDI
12
SDO
13
AD8403
TOP VIEW
(Not to Scale)
01
09
2-
00
8
Figure 8. AD8403 Pin Configuration
Table 7. AD8400 Pin Function Descriptions
Pin No.
Mnemonic
Description
1
B1
Terminal B RDAC.
2
GND
Ground.
3
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.
4
SDI
Serial Data Input.
5
CLK
Serial Clock Input, Positive Edge Triggered.
6
VDD
Positive Power Supply. Specified for operation at both 3 V and 5 V.
7
W1
Wiper RDAC, Addr = 002.
8
A1
Terminal A RDAC.
Table 8. AD8402 Pin Function Descriptions
Pin No.
Mnemonic
Description
1
AGND
Analog Ground.1
2
B2
Terminal B RDAC 2.
3
A2
Terminal A RDAC 2.
4
W2
Wiper RDAC 2, Addr = 012.
5
DGND
Digital Ground.1
6
SHDN
Terminal A Open Circuit. Shutdown controls Variable Resistor 1 and Variable Resistor 2.
7
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.
8
SDI
Serial Data Input.
9
CLK
Serial Clock Input, Positive Edge Triggered.
10
RS
Active Low Reset to Midscale. Sets RDAC registers to 80H.
11
VDD
Positive Power Supply. Specified for operation at both 3 V and 5 V
12
W1
Wiper RDAC 1, Addr = 002.
13
A1
Terminal A RDAC 1.
14
B1
Terminal B RDAC 1.
1 All AGND pins must be connected to DGND.
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