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参数资料
| 型号： | DS1868-50 |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/14页 |
| 文件大小： | 0K |
| 描述： | IC POT DIGITAL DUAL 50K 14-DIP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 25 |
| 接片： | 256 |
| 电阻（欧姆）： | 50k |
| 电路数： | 2 |
| 温度系数： | 标准值 750 ppm/°C |
| 存储器类型： | 易失 |
| 接口： | 3 线串口 |
| 电源电压： | 2.7 V ~ 3.3 V，4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 14-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 14-PDIP |
| 包装： | 管件 |
DS1868
6 of 14
ABSOLUTE AND RELATIVE LINEARITY
Absolute linearity is defined as the difference between the actual measured output voltage and the
expected output voltage. Figure 5 presents the test circuit used to measure absolute linearity. Absolute
linearity is given in terms of a minimum increment or expected output when the wiper is moved one
position. In the case of the test circuit, a minimum increment (MI) or one LSB would equal 5/256 volts.
The equation for absolute linearity is given as follows:
(1)
ABSOLUTE LINEARITY
AL={VO(actual) - VO(expected)}/MI
Relative linearity is a measure of error between two adjacent wiper position points and is given in terms
of MI by equation (2).
(2)
RELATIVE LINEARITY
RL={VO(n+1) - VO(n)}/MI
Figure 6 is a plot of absolute linearity and relative linearity versus wiper position for the DS1868 at 25
°C.
The specification for absolute linearity of the DS1868 is
±0.75 MI typical. The specification for relative
linearity of the DS1868 is
±0.3 MI typical.
LINEARITY MEASUREMENT CONFIGURATION Figure 5
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|---|---|
| DS1868-50+ | 功能描述:数字电位计 IC Dual RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| DS1868BE-010+ | 制造商:Maxim Integrated Products 功能描述:DUAL 256-STEP DIGITAL POTENTIOMETER - Rail/Tube 制造商:Maxim Integrated Products 功能描述:IC DGTL POT 10K 2CH 20TSSOP |
| DS1868BE-010+T/R | 制造商:Maxim Integrated Products 功能描述:DUAL 256-STEP DIGITAL POTENTIOMETER - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC DGTL POT 10K 2CH 20TSSOP |
| DS1868BE-050+ | 制造商:Maxim Integrated Products 功能描述:DUAL 256-STEP DIGITAL POTENTIOMETER, 50K OHM END TO END RESI - Rail/Tube |
| DS1868BE-050+T/R | 制造商:Maxim Integrated Products 功能描述:DUAL 256-STEP DIGITAL POTENTIOMETER, 50K OHM END TO END RESI - Tape and Reel |
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