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DS1855E-020/T&R PDF预览

DS1855E-020/T&R

更新时间: 2024-01-20 23:49:00
品牌 Logo 应用领域
美信 - MAXIM 光电二极管转换器电阻器
页数 文件大小 规格书
21页 503K
描述
Digital Potentiometer, 2 Func, 20000ohm, 2-wire Serial Control Interface, 256 Positions, PDSO14, 0.173 INCH, TSSOP-14

DS1855E-020/T&R 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Active零件包装代码:TSSOP
包装说明:TSSOP, TSSOP14,.25针数:14
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.36
Is Samacsys:N其他特性:NONVOLATILE MEMORY; OTHER RESISTOR VALUE IS 10000 OHM WITH 100 TAP POSITION
标称带宽:1 kHz控制接口:2-WIRE SERIAL
转换器类型:DIGITAL POTENTIOMETERJESD-30 代码:R-PDSO-G14
JESD-609代码:e0长度:5 mm
湿度敏感等级:1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:TSSOP
封装等效代码:TSSOP14,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):240
电源:3/5 V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:3.3 V最小电阻器端电压:-0.3 V
座面最大高度:1.1 mm子类别:Digital Potentiometers
标称供电电压:3 V表面贴装:YES
标称温度系数:750 ppm/ °C温度等级:INDUSTRIAL
端子面层:Tin/Lead (Sn/Pb)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:20000 Ω
宽度:4.4 mmBase Number Matches:1

DS1855E-020/T&R 数据手册

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DS1855  
Dual Nonvolatile Digital Potentiometer  
and Secure Memory  
FEATURES  
PIN CONFIGURATIONS  
. Two Linear Taper Potentiometers  
DS1855-010 (One 10k, 100 Position  
and One 10k, 256 Position)  
SDA  
SCL  
A0  
1
2
3
4
5
6
7
14  
13  
12  
11  
10  
9
Vcc  
H0  
W1  
H1  
L1  
DS1855-020 (One 10k, 100 Position  
and One 20k, 256 Position)  
DS1855-050 (One 10k, 100 Position  
and One 50k, 256 Position)  
A1  
A2  
WP  
W0  
L0  
GND  
8
DS1855-100 (One 10k, 100 Position  
and One 100k, 256 Position)  
. 256 Bytes of EEPROM Memory  
. Access to Data and Potentiometer Control  
via a 2-Wire Interface  
TSSOP (173 mils)  
Top View  
. External Write-Protect Pin to Protect Data  
and Potentiometer Settings  
A
B
C
. Data and Potentiometer Settings Also Can  
Be Write Protected Through Software  
Control  
. Nonvolatile Wiper Storage  
. Operates from 3V or 5V Supplies  
. 14-Pin TSSOP, 16-Ball CSBGA, and  
14-Pin Flip-Chip Packages  
D
1
2
3
4
. Industrial Operating Temperature:  
-40ºC to +85ºC  
CSBGA (4mm x 4mm)  
Flip Chip (100 mils x 100 mils) (Not Shown)  
DESCRIPTION  
The DS1855 dual nonvolatile (NV) digital potentiometer and secure memory consists of one 100-position  
linear taper potentiometer, one 256-position linear taper potentiometer, 256 bytes of EEPROM memory,  
and a 2-wire interface. The DS1855, which features a new software write protect, is an upgrade of the  
DS1845. The DS1855 provides an ideal method for setting bias voltages and currents in control  
applications using a minimum of circuitry. The EEPROM memory allows a user to store configuration or  
calibration data for a specific system or device as well as provide control of the potentiometer wiper  
settings. Any type of user information may reside in the first 248 bytes of this memory. The next two  
addresses of EEPROM memory are for potentiometer settings and the remaining 6 bytes of memory are  
reserved. These reserved and potentiometer registers should not be used for data storage. Access to this  
EEPROM is via an industry-standard 2-wire bus. The interface I/O pins consist of SDA and SCL. The  
wiper position of the DS1855, as well as EEPROM data, can be write protected through hardware using  
the write-protect input pin (WP) or software using the 2-wire interface.  
1 of 21  
19-6586; Rev 2; 1/13  

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