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參數(shù)資料
| 型號： | X9C503 |
| 元件分類： | 數(shù)字電位計 |
| 英文描述： | EEPOT Nonvolatile Digital Potentiometer(100個抽頭,-5V~+5V,50K總電阻,非易失性數(shù)字電位器) |
| 中文描述： | EEPOT非易失數(shù)字電位器（100個抽頭，- 5V的?5V的，50K的總電阻，非易失性數(shù)字電位器） |
| 文件頁數(shù)： | 2/8頁 |
| 文件大?。?/td> | 87K |
| 代理商： | X9C503 |
Xicor Application Note
AN120-2
AN120
Mode Control Switching
Feedback Networks
E
D
F
Op Amp
Signal
Source
–
+
Output
Comparator
Mode
Control
Gated Clock
Oscillator
Digitally Controlled Pot as
Feedback Error Integrator
C
A
B
V
W
V
H
V
L
U/D
CS
INC
C. Analog/Digital Feedback (Voltage Comparator).
Conversion between the analog state of the output node
and the digital U/D XDCP input is the traditional role of the
analog comparator. However, the flexibility of the CMOS
logic inputs of Xicor XDCPs often makes it possible to
substitute a simple passive voltage-translation network, as
will be illustrated in the design applications to follow.
D. Digital/Analog Feedback (Resistance Element Circuitry).
Closure of the feedback loop is achieved by incorporation
of the variable resistance element of the XDCP into the
active circuitry of the rest of the feedback system.
E. Intermittent Feedback Control Circuitry (Selectable
Operating Modes). Some uniquely versatile XDCP-based
feedback control applications derive their utility from the
ability to implement multiple operation modes in which
circuit setpoints (e.g. precision op amp offset null) derived
from one operating mode (e.g. autonull mode) are
retained in XDCP memory and used in a subsequently
selected system mode (e.g. DC amplification). Control
and selection of such system operating modes is easily
achieved through the use of inexpensive, logic-compatible,
CMOS analog switch elements such as the 74HC4053.
F. Operational Amplifier. Essentially all precision analog
systems of the sort that can benefit from XDCP-based
feedback designs will incorporate at least one monolithic
op amp. Selection of a suitable (e.g. adequate gain,
bandwidth, DC accuracy) op amp is therefore an
important step in the feedback system design process.
Figure 2’s conceptual topology has been utilized to
advantage in a variety of real-life applications. Examples
include:
Auto-Nulling Delta-T Thermometer
Some precision temperature measurement applications,
such as acquiring the temperature rise of a heatsink in
response to a thermal load, are inherently concerned with
temperature change relative to an initial value, rather than
absolute temperature. In such applications, important
Figure 2. Basic XDCP-Based Feedback Control Loop
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X9C503DI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital Potentiometer |
| X9C503DM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital Potentiometer |
| X9C503P | 功能描述:IC DIGITAL POT 50K 100TP 8DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 標準包裝:2,500 系列:XDCP™ 接片:256 電阻（歐姆）:100k 電路數(shù):1 溫度系數(shù):標準值 ±300 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 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
| X9C503PI | 功能描述:IC DIGITAL POT 50K 100TP 8DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 標準包裝:2,500 系列:XDCP™ 接片:256 電阻（歐姆）:100k 電路數(shù):1 溫度系數(shù):標準值 ±300 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 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
| X9C503PIZ | 功能描述:IC XDCP 100-TAP 50K EE 8-DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)字電位器 系列:XDCP™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 接片:256 電阻（歐姆）:100k 電路數(shù):2 溫度系數(shù):標準值 35 ppm/°C 存儲器類型:易失 接口:6 線串行（芯片選擇，遞增，增/減） 電源電壓:2.6 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) |
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