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DS3903E-020/W PDF预览

DS3903E-020/W

更新时间: 2024-11-22 13:07:27
品牌 Logo 应用领域
美信 - MAXIM 转换器电位器光电二极管
页数 文件大小 规格书
11页 619K
描述
Digital Potentiometer, 3 Func, 90000ohm, 2-wire Serial Control Interface, 128 Positions, PDSO20, 0.173 INCH, TSSOP-20

DS3903E-020/W 技术参数

是否无铅:含铅是否Rohs认证:不符合
生命周期:Obsolete零件包装代码:TSSOP
包装说明:TSSOP,针数:20
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.84
Is Samacsys:N其他特性:REST 2 RESISTOR ARRAY VALUES ARE 10000 OHMS EACH; NONVOLATILE MEMORY
控制接口:2-WIRE SERIAL转换器类型:DIGITAL POTENTIOMETER
JESD-30 代码:R-PDSO-G20JESD-609代码:e0
长度:6.5 mm湿度敏感等级:1
功能数量:3位置数:128
端子数量:20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:TSSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):245
认证状态:Not Qualified电阻定律:LINEAR
最大电阻容差:20%最大电阻器端电压:5.5 V
最小电阻器端电压:-0.3 V座面最大高度:1.1 mm
标称供电电压:3 V表面贴装:YES
标称温度系数:温度等级:INDUSTRIAL
端子面层:TIN LEAD端子形式:GULL WING
端子节距:0.65 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:90000 Ω
宽度:4.4 mmBase Number Matches:1

DS3903E-020/W 数据手册

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Rev 0; 6/02  
Triple 128-Position Nonvolatile  
Digital Potentiometer  
General Description  
Features  
The DS3903 contains three nonvolatile (NV) low tem-  
perature coefficient digital potentiometers, which can  
be accessed through a 2-wire bus. It operates in both  
3V and 5V systems, and it features a write-protect pin  
that can lock the positions of the potentiometers. An  
address pin allows two DS3903s to be placed on the  
same 2-wire bus.  
Three 128-Position Linear Potentiometers  
(Two 10k, One 90k)  
NV Wiper Storage  
0 to 5.5V on Any Potentiometer Terminal  
Independent of V  
CC  
Low End-to-End Temperature Coefficient  
Operates on an Industry-Standard 2-Wire Bus  
Write-Protect Pin  
Applications  
Power-Supply Calibration  
Mobile Phones and PDAs  
Fiber Optics Transceiver Modules  
Portable Electronics  
Supply Voltage: 3V or 5V  
Operating Temperature Range: -40°C to +85°C  
Packaging: 20-Pin TSSOP  
A Small, Low-Cost Replacement for Mechanical  
Potentiometers  
Ordering Information  
PART  
TEMP RANGE PIN-PACKAGE  
DS3903E-020  
-40°C to +85°C 20 TSSOP  
20 TSSOP  
(Tape-and-Reel)  
DS3903E-020/T&R -40°C to +85°C  
Pin Configuration  
Typical Operating Circuit  
V
SDA  
CC  
1
2
3
4
5
6
7
8
9
20 V  
CC  
V
CC  
SCL  
5.1k  
19 N.C.  
18 N.C.  
17 N.C.  
16 N.C.  
15 H0  
DS3903  
V
0.1µF  
CC  
A0  
WP  
N.C.  
L0  
Iref  
VARIABLE RESISTANCE  
FOR ADJUSTABLE  
POTENTIOMETER 2  
10kΩ  
ADDDR FAh  
4.7k4.7kΩ  
CURRENT SOURCE  
V
SCL  
SDA  
DS3903  
CC  
2-WIRE  
MASTER  
POTENTIOMETER 0  
10kΩ  
ADDDR F9h  
VREF1  
HIGH-OUTPUT-IMPEDANCE  
VOLTAGE REFERENCE  
W1  
L1  
14 W0  
13 H1  
WP  
A0  
V
CC  
POTENTIOMETER 1  
90kΩ  
ADDDR F8h  
W2  
12  
L2  
GND 10  
11 H2  
VREF2  
GND  
BUFFERED  
VOLTAGE  
REFERENCE  
TSSOP  
MAX427  
_____________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  

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