R2X AD1 AD0
參數(shù)資料
型號(hào): AD5254BRU50
廠商: Analog Devices Inc
文件頁(yè)數(shù): 16/32頁(yè)
文件大小: 0K
描述: IC DGTL POT QUAD 50K 20-TSSOP
標(biāo)準(zhǔn)包裝: 75
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(chǔ)器類(lèi)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(lèi)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: 管件
Data Sheet
AD5253/AD5254
Rev. C | Page 23 of 32
03824-0-038
+5V
R1
AD1
AD0
N1
4
2
4
+5V
R2X
AD1
AD0
N2X
+5
P2Y
P3X
R3X
R3Y
N3Y
AD1
AD0
AD1
AD0
4
+5V
P4
R4
+5V
2
4
DECODER
4
2
4
DECODER
4
2
4
DECODER
4
2
4
DECODER
Figure 38. Four Devices with AD1 and AD0 of 00
TERMINAL VOLTAGE OPERATION RANGE
The AD5253/AD5254 are designed with internal ESD diodes
for protection; these diodes also set the boundaries for the
terminal operating voltages. Positive signals present on
Terminal A, Terminal B, or Terminal W that exceed VDD are
clamped by the forward-biased diode. Similarly, negative signals
on Terminal A, Terminal B, or Terminal W that are more
negative than VSS are also clamped (see Figure 39). In practice,
users should not operate VAB, VWA, and VWB to be higher than
the voltage across VDD to VSS, but VAB, VWA, and VWB have no
polarity constraint.
03824-0-039
VDD
A
W
B
VSS
Figure 39. Maximum Terminal Voltages Set by VDD and VSS
POWER-UP AND POWER-DOWN SEQUENCES
Because the ESD protection diodes limit the voltage compliance
at Terminal A, Terminal B, and Terminal W (Figure 39), it is
important to power VDD/VSS before applying any voltage to
these terminals. Otherwise, the diodes are forward biased such
that VDD/VSS are powered unintentionally and may affect the
user’s circuit. Similarly, VDD/VSS should be powered down last.
The ideal power-up sequence is in the following order: GND,
VDD, VSS, digital inputs, and VA/VB/VW. The order of powering
VA, VB, VW, and the digital inputs is not important, as long as
they are powered after VDD/VSS.
LAYOUT AND POWER SUPPLY BIASING
It is always a good practice to employ a compact, minimum
lead-length layout design. The leads to the input should be as
direct as possible, with a minimum conductor length. Ground
paths should have low resistance and low inductance.
Similarly, it is also good practice to bypass the power supplies
with quality capacitors. Low equivalent series resistance (ESR)
1 μF to 10 μF tantalum or electrolytic capacitors should be
applied at the supplies to minimize any transient disturbance
and filter low frequency ripple. Figure 40 illustrates the basic
supply-bypassing configuration for the AD5253/AD5254.
03824-0-040
VDD
VSS
GND
C3
AD5253/AD5254
C4
C1
C2
10
F
10
F
0.1
F
0.1
F
Figure 40. Power Supply-Bypassing Configuration
The ground pin of the AD5253/AD5254 is used primarily as a
digital ground reference. To minimize the digital ground
bounce, the AD5253/AD5254 ground terminal should be joined
remotely to the common ground (see Figure 40).
相關(guān)PDF資料
PDF描述
VE-260-MY-F4 CONVERTER MOD DC/DC 5V 50W
VE-260-MY-F3 CONVERTER MOD DC/DC 5V 50W
VE-260-MY-F1 CONVERTER MOD DC/DC 5V 50W
VE-25F-MY-F4 CONVERTER MOD DC/DC 72V 50W
VE-J3B-MZ CONVERTER MOD DC/DC 95V 25W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD5254BRU50-RL7 功能描述:IC DGTL POT QUAD 50K 20-TSSOP RoHS:否 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 標(biāo)準(zhǔn)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(biāo)準(zhǔn)值 300 ppm/°C 存儲(chǔ)器類(lèi)型:非易失 接口:3 線(xiàn)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(lèi)型:表面貼裝 封裝/外殼:8-WFDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-TDFN(2x3) 包裝:帶卷 (TR)
AD5254BRUZ1 功能描述:IC DGTL POT QUAD 1K I2C 20-TSSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 接片:256 電阻(歐姆):100k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 35 ppm/°C 存儲(chǔ)器類(lèi)型:非易失 接口:3 線(xiàn)串口 電源電壓:2.7 V ~ 5.25 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-TDFN-EP(3x3) 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:1399 (CN2011-ZH PDF) 其它名稱(chēng):MAX5423ETA+TCT
AD5254BRUZ10 功能描述:IC POT DGTL QUAD 10K I2C 20TSSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 接片:256 電阻(歐姆):100k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 35 ppm/°C 存儲(chǔ)器類(lèi)型:非易失 接口:3 線(xiàn)串口 電源電壓:2.7 V ~ 5.25 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-TDFN-EP(3x3) 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:1399 (CN2011-ZH PDF) 其它名稱(chēng):MAX5423ETA+TCT
AD5254BRUZ100 功能描述:IC POT DGTL QUAD 100K 20-TSSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 接片:256 電阻(歐姆):100k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 35 ppm/°C 存儲(chǔ)器類(lèi)型:非易失 接口:3 線(xiàn)串口 電源電壓:2.7 V ~ 5.25 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-TDFN-EP(3x3) 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:1399 (CN2011-ZH PDF) 其它名稱(chēng):MAX5423ETA+TCT
AD5254BRUZ100-RL7 功能描述:IC DGTL POT 256POS 100K 20TSSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 接片:256 電阻(歐姆):100k 電路數(shù):1 溫度系數(shù):標(biāo)準(zhǔn)值 35 ppm/°C 存儲(chǔ)器類(lèi)型:非易失 接口:3 線(xiàn)串口 電源電壓:2.7 V ~ 5.25 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:8-TDFN-EP(3x3) 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:1399 (CN2011-ZH PDF) 其它名稱(chēng):MAX5423ETA+TCT