DS1845/DS1855温度系数分析

摘要：数字电位器的温度特性不同于传统的机械电位器。温度对电位的绝对性的影响，必须考虑到这些类型的设备的设计时，为数字电位器具有绝对性，顺序上的温度超过10 ％的幅度可能会有所不同。其他因素，尤其是“抽头” ，这实际上是一个传输门的阻力，还必须考虑到这些部件的设计时。一个稳定的设计在不同的配置概述。
Maxim > App Notes > COMMUNICATIONS CIRCUITS DIGITAL POTENTIOMETERS FIBER-OPTIC CIRCUITS

Keywords: digital pot, digitpot, epot, DS1845, DS1855, xicor, digital potemtiometers Jun 07, 2002

APPLICATION NOTE 207
DS1845/DS1855 Temperature Coefficient Analysis

Abstract: The temperature characteristics of digital potentiometers differ from those of traditional mechanical
potentiometers. The effects of temperature on the absolute resistance of the potentiometer must be taken into
consideration when designing with these types of devices as a digital potentiometer has an absolute resistance,
which might vary on an order of magnitude of 10% over temperature. Other considerations, especially the
resistance of the "wiper" which is in actuality a transmission gate,