A 1 μF capacitor to VSS
參數資料
型號: AD5272BRMZ-20
廠商: Analog Devices Inc
文件頁數: 17/28頁
文件大小: 0K
描述: IC DGTL POT 20K 1024POS 10MSOP
設計資源: Compact, Low Cost, 5 V, Variable Gain, Noninverting Amplifier Using AD5270/2 and AD8615 (CN0161)
Compact, Low Cost, 5 V, Variable Gain, Inverting Amplifier Using AD5270/2 and AD8615(CN0168)
標準包裝: 50
接片: 1024
電阻(歐姆): 20k
電路數: 1
溫度系數: 標準值 5 ppm/°C
存儲器類型: 非易失
接口: I²C
電源電壓: 2.7 V ~ 5.5 V,±2.5 V ~ 2.75 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 10-TFSOP,10-MSOP(0.118",3.00mm 寬)
供應商設備封裝: 10-MSOP
包裝: 管件
產品目錄頁面: 787 (CN2011-ZH PDF)
AD5272/AD5274
Data Sheet
Rev. D | Page 24 of 28
EXT_CAP CAPACITOR
A 1 μF capacitor to VSS must be connected to the EXT_CAP pin
(see Figure 47) on power-up and throughout the operation of
the AD5272/AD5274.
AD5272/
AD5274
50_OTP
MEMORY
BLOCK
EXT_CAP
C1
1F
VSS
08
076
-00
9
Figure 47. EXT_CAP Hardware Setup
TERMINAL VOLTAGE OPERATING RANGE
The positive VDD and negative VSS power supplies of the
AD5272/AD5274 define the boundary conditions for proper
2-terminal digital resistor operation. Supply signals present on
Terminal A and Terminal W that exceed VDD or VSS are clamped
by the internal forward-biased diodes (see Figure 48).
VSS
VDD
A
W
08
076
-10
9
Figure 48. Maximum Terminal Voltages Set by VDD and VSS
The ground pins of the AD5272/AD5274 devices are primarily
used as digital ground references. To minimize the digital
ground bounce, join the AD5272/AD5274 ground terminal
remotely to the common ground. The digital input control
signals to the AD5272/AD5274 must be referenced to the
device ground pin (GND) and satisfy the logic level defined in
the Specifications section. An internal level shift circuit ensures
that the common-mode voltage range of the three terminals
extends from VSS to VDD, regardless of the digital input level.
POWER-UP SEQUENCE
Because there are diodes to limit the voltage compliance at
Terminal A and Terminal W (see Figure 48), it is important to
power VDD/VSS first before applying any voltage to Terminal A
and Terminal W; otherwise, the diode is forward-biased such
that VDD/VSS are powered unintentionally. The ideal power-up
sequence is VSS, GND, VDD, digital inputs, VA, and VW. The
order of powering VA, VW, and digital inputs is not important
as long as they are powered after VDD/VSS.
As soon as VDD is powered, the power-on preset activates, which
first sets the RDAC to midscale and then restores the last
programmed 50-TP value to the RDAC register.
相關PDF資料
PDF描述
AD5252BRUZ100-RL7 IC DGTL POT 256POS 100K 14TSSOP
PI5C3245QE IC 8BIT 2PORT BUS SWITCH 20QSOP
PI5C3257QE IC QUAD2:1 MLTPLXR BUS SW 16QSOP
PI5C3125QE IC BUS SWITCH 4BIT 16-QSOP
VI-B0L-MX-B1 CONVERTER MOD DC/DC 28V 75W
相關代理商/技術參數
參數描述
AD5272BRMZ-20 制造商:Analog Devices 功能描述:Digital Potentiometer IC 制造商:Analog Devices 功能描述:IC, DIGITAL POT 20KOHM 1024, SGL MSOP-10
AD5272BRMZ-20-RL7 功能描述:IC DGTL POT 1024POS 20K 10MSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數字電位器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 接片:256 電阻(歐姆):100k 電路數:1 溫度系數:標準值 35 ppm/°C 存儲器類型:非易失 接口:3 線串口 電源電壓:2.7 V ~ 5.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應商設備封裝:8-TDFN-EP(3x3) 包裝:剪切帶 (CT) 產品目錄頁面:1399 (CN2011-ZH PDF) 其它名稱:MAX5423ETA+TCT
AD5272BRMZ-50 功能描述:IC RHEOSTAT 5V 50TP 1024 10MSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數字電位器 系列:- 標準包裝:3,300 系列:WiperLock™ 接片:257 電阻(歐姆):100k 電路數:1 溫度系數:標準值 150 ppm/°C 存儲器類型:易失 接口:3 線 SPI(芯片選擇) 電源電壓:1.8 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-VDFN 裸露焊盤 供應商設備封裝:8-DFN-EP(3x3) 包裝:帶卷 (TR)
AD5272BRMZ-50-RL7 功能描述:IC RHEOSTAT 5V 50-TP 1024 10MSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數字電位器 系列:- 標準包裝:3,000 系列:DPP 接片:32 電阻(歐姆):10k 電路數:1 溫度系數: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)
AD5273 制造商:AD 制造商全稱:Analog Devices 功能描述:64-Position OTP Digital Potentiometer