如何计算的数字电位器的抽头电压

摘要： MAX5481/MAX5483数据手册提供了一个复杂的公式中的努力是非常精确的计算抽头电压。本应用笔记介绍了在这个计算中涉及的问题分解成较小的步骤的过程。此外，还讨论确定最有效位（LSB）的正确方法。

Maxim > App Notes > DIGITAL POTENTIOMETERS GENERAL ENGINEERING TOPICS
SIGNAL GENERATION CIRCUITS

Keywords: Full-Scale-Error FSE Zero-Scale Error ZSE LSB wiper voltage digital pot potentiometer calculate Sep 27, 2008
steps taps

APPLICATION NOTE 4288
How to Calculate the Wiper Voltage of a Digital Potentiometer
By: Bill Laumeister
Abstract: The MAX5481/MAX5483 data sheet provides a complicated formula for calculating wiper voltage in
an effort to be very precise. This application note explains the issues involved in this calculation and breaks
the process into smaller steps. It also discusses the proper method for determining the least-significant bit
(LSB).


Introduction

Sometimes in our effort to be very precise we make things look ridiculously hard. The formulas for calcula