Datasheet > MCP42010T-I/P

MCP42010T-I/P

更新时间： 2024-10-01 20:05:19

品牌	Logo	应用领域
美国微芯 - MICROCHIP		光电二极管转换器电阻器
页数	文件大小	规格书
8页	95K
描述
DUAL 10K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDIP14, 0.300 INCH, PLASTIC, DIP-14

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技术参数
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MCP42010T-I/P 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	DIP
包装说明：	DIP, DIP14,.3	针数：	14
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.25
标称带宽：	1 kHz	控制接口：	3-WIRE SERIAL
转换器类型：	DIGITAL POTENTIOMETER	JESD-30 代码：	R-PDIP-T14
JESD-609代码：	e3	长度：	19.05 mm
功能数量：	2	位置数：	256
端子数量：	14	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	DIP	封装等效代码：	DIP14,.3
封装形状：	RECTANGULAR	封装形式：	IN-LINE
峰值回流温度（摄氏度）：	NOT SPECIFIED	电源：	3/5 V
认证状态：	Not Qualified	电阻定律：	LINEAR
最大电阻器端电压：	5 V	最小电阻器端电压：
座面最大高度：	4.32 mm	子类别：	Digital Potentiometers
标称供电电压：	5 V	表面贴装：	NO
技术：	CMOS	标称温度系数：	800 ppm/ °C
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	THROUGH-HOLE	端子节距：	2.54 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
标称总电阻：	10000 Ω	宽度：	7.62 mm
Base Number Matches：	1

MCP42010T-I/P 数据手册

AN219

Comparing Digital Potentiometers to Mechanical

Potentiometers

Earlier mechanical potentiometers were built by wrap-

Author:

Bonnie C. Baker,

ping a resistive wire around a cylinder. With this con-

struction, the wiper moves from one winding to the

next. As the wiper is moved across the element, there

are discrete steps in resistance. Following this style of

fabrication, the mechanical potentiometer was built

using a resistive thick film that was screened onto a

ceramic substrate. With this construction, the change in

resistance across the element is continuous.

Microchip Technology Inc.

INTRODUCTION

Resistor potentiometers can be found in electronic cir-

cuits across a wide spectrum of applications. Most typ-

ically, they function in a voltage divider configuration in

order to execute various types of tasks, such as offset

or gain adjust. The two types of potentiometers com-

pared in this application note are the mechanical poten-

tiometer (also called a trimmer potentiometer) and the

digital potentiometer. The physical descriptions and cir-

cuit models of these two devices are shown in Figure 1.

There are a variety of resistive materials that are used

by mechanical potentiometer manufacturers. They

include molded conductive plastic, conductive plastic

film, screened conductive plastic, and cermet. Each

resistive material has its own set of performance char-

acteristics. In this application note the digital potentiom-

eter will only be compared to the more popular cermet

potentiometer. Cermet is a thick film resistive material

that is a mixture of fine particles of ceramic or glass and

precision metals such as silver, platinum, rhodium, or

gold. The wiper of the mechanical potentiometer slides

along the distance on the resistive material providing

an analog resistive output that has an infinite number of

positions across the span of the element.

Basics of Mechanical Potentiometers

The first type of potentiometer on the market was

mechanical in nature. This type of potentiometer is still

available and adjustments of the wiper are imple-

mented by twisting a knob, moving a slider, or using a

screw driver. Although this method seems awkward,

given the advent of the digital potentiometer, mechani-

cal potentiometers still find their way into various elec-

tronic circuits.

wiper

resistance

contact

resistance

MCP41010

MCP42010

An example of PCB

mountableMechanical

potentiometers

Mechanical

Potentiometer

Model

Digital

Potentiometer

Model

Figure 1: The mechanical potentiometer is constructed so that the user can easily adjust the position of

the wiper (PW) by hand or with a screw driver. The digital potentiometer is manufactured so that the

position of the wiper is adjusted by means of a serial digital code. The circuit representation of the digital

potentiometer and the mechanical potentiometer is fundamentally the same.

 2000 Microchip Technology Inc.

Preliminary

DS00219A-page 1

12 3 4 5 6 7 8

中文翻译

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与MCP42010T-I/P相关器件

型号	品牌	获取价格	描述	数据表
MCP42010TI/SL	MICROCHIP	获取价格	Single/Dual Digital Potentiometer with SPI Interface
MCP42010T-I/SL	MICROCHIP	获取价格	DUAL 10K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO14, 0.
MCP42010TI/SN	MICROCHIP	获取价格	Single/Dual Digital Potentiometer with SPI Interface
MCP42010TI/ST	MICROCHIP	获取价格	Single/Dual Digital Potentiometer with SPI Interface
MCP42010T-I/ST	MICROCHIP	获取价格	Single/Dual Digital Potentiometer with SPI⑩ I
MCP42010T-I/TS	MICROCHIP	获取价格	DUAL 10K DIGITAL POTENTIOMETER, 3-WIRE SERIAL CONTROL INTERFACE, 256 POSITIONS, PDSO14, 4.
MCP42010T-IST	MICROCHIP	获取价格	Single/Dual Digital Potentiometer with SPI Interface
MCP42050	MICROCHIP	获取价格	Single/Dual Digital Potentiometer with SPI⑩ I
MCP42050E/P	MICROCHIP	获取价格	Single/Dual Digital Potentiometer with SPI Interface
MCP42050-E/P	MICROCHIP	获取价格	Single/Dual Digital Potentiometer with SPI⑩ I

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