參數(shù)資料
型號: AD5254BRU50-RL7
廠商: Analog Devices Inc
文件頁數(shù): 32/32頁
文件大?。?/td> 0K
描述: IC DGTL POT QUAD 50K 20-TSSOP
標(biāo)準(zhǔn)包裝: 1,000
接片: 256
電阻(歐姆): 50k
電路數(shù): 4
溫度系數(shù): 標(biāo)準(zhǔn)值 650 ppm/°C
存儲器類型: 非易失
接口: I²C(設(shè)備位址)
電源電壓: 2.7 V ~ 5.5 V,±2.25 V ~ 2.75 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 20-TSSOP
包裝: 帶卷 (TR)
Data Sheet
AD5253/AD5254
Rev. C | Page 9 of 32
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
AD5253/
AD5254
TOP VIEW
(Not to Scale)
W0
1
B0
2
A0
3
AD0
4
5
W1
6
B1
7
A1
8
SDA
9
VSS 10
VDD
W3
B3
A3
AD1
20
19
18
17
16
DGND
SCL
W2
B2
A2
15
14
13
12
11
03824-0-002
WP
Figure 2. Pin Configuration
Table 5. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
W0
Wiper Terminal of RDAC0. V
SS ≤ VW0 ≤ VDD.
2
B0
B Terminal of RDAC0. V
SS ≤ VB0 ≤ VDD.
3
A0
A Terminal of RDAC0. V
SS ≤ VA0 ≤ VDD.
4
AD0
I2C Device Address 0. AD0 and AD1 allow four AD5253/AD5254 devices to be addressed.
5
WP
Write Protect, Active Low. V
WP ≤ VDD + 0.3 V.
6
W1
Wiper Terminal of RDAC1. V
SS ≤ VW1 ≤ VDD.
7
B1
B Terminal of RDAC1. V
SS ≤ VB1 ≤ VDD.
8
A1
A Terminal of RDAC1. V
SS ≤ VA1 ≤ VDD.
9
SDA
Serial Data Input/Output Pin. Shifts in one bit at a time upon positive clock edges. MSB loaded first. Open-drain
MOSFET requires pull-up resistor.
10
V
SS
Negative Supply. Connect to 0 V for single supply or –2.7 V for dual supply, where V
DD – VSS ≤ +5.5 V. If VSS is used
rather than grounded in dual supply, V
SS must be able to sink 35 mA for 26 ms when storing data to EEMEM.
11
A2
A Terminal of RDAC2. V
SS ≤ VA2 ≤ VDD.
12
B2
B Terminal of RDAC2. V
SS ≤ VB2 ≤ VDD.
13
W2
Wiper Terminal of RDAC2. V
SS ≤ VW2 ≤ VDD.
14
SCL
Serial Input Register Clock Pin. Shifts in one bit at a time upon positive clock edges. V
SCL ≤ (VDD + 0.3 V). Pull-up
resistor is recommended for SCL to ensure minimum power.
15
DGND
Digital Ground. Connect to system analog ground at a single point.
16
AD1
I2C Device Address 1. AD0 and AD1 allow four AD5253/AD5254 devices to be addressed.
17
A3
A Terminal of RDAC3. V
SS ≤ VA3 ≤ VDD.
18
B3
B Terminal of RDAC3. V
SS ≤ VB3 ≤ VDD.
19
W3
Wiper Terminal of RDAC3. V
SS ≤ VW3 ≤ VDD.
20
V
DD
Positive Power Supply Pin. Connect +2.7 V to +5 V for single supply or ±2.7 V for dual supply, where V
DD – VSS ≤ +5.5 V.
V
DD must be able to source 35 mA for 26 ms when storing data to EEMEM.
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