DS1867 Pow...

Abstract: This application note answers frequently asked questions for Dallas Semiconductor digital potentiometers. How do I set up the DS1267 in stacked configuration?Connect the H0 terminal to the L1 terminal...

Additional Information: EPOT Applications: Offset Adjustment in Op-Amp Circuits To model the network shown below in Figure 1 as the Thevenin equivalent shown below in Figure 2, find the Thevenin Voltage (Vth) and the Thevenin Resis...

Abstract: Linear digital potentiometers (pots) can be used in non-linear applications such as adjusting volume control in audio applications. This article discusses how to create a "pseudo-logarithmic" taper digital pot by simply adding a ...

Abstract: Semiconductor topic: Many linear and switched-mode power supplies and voltage regulators use a resistor network as feedback into the regulator to adjust the voltage output. This is typically done either by varying the values of t...

Abstract: The DS3904 contains three digitally controlled nonvolatile (NV) variable resistors. It has the capability of placing each of the variable resistors into a high-impedance state. Using this feature, it is possible to create a 2-wir...

Abstract: This article discusses how to improve linearity (due to loading of the wiper) and mid-range frequency response of a digital potentiometer in VCO control applications by adding a single external resistor between H and W. ...

摘要：本文介紹了一種簡單電路，能夠將數字電位器的帶寬從10倍提高到100倍。利用這一方法，數字電位器可以用于視頻帶寬的高頻應用。 數字電位器(digital pot或digipot)...

利用空閑ROM防止程序飛跑1、 全部填02H，相當于“LJMP 0202H”，作個軟件看門狗。2、 填“02 00 00”這樣就是“LJMP 0000H”了。3、 都填“00”，00H是“NOP”指令，...

摘要：利用一對相同的數字電位器構建電壓-電阻轉換方案。 在工業(yè)控制和偏置調節(jié)電路中有時需要將電壓轉換成電阻，這一過程在具體實施時有一定的難度。圖1所示...

摘要：本應用筆記介紹了一種通過幾個按鍵和一個微控制器控制數字電位器DS1803或DS1805阻值的簡易方法。 概述本應用筆記介紹了一種使用幾個按鍵和一個微控...

摘要：數字電位器(digipot)能夠在各種應用中為模擬電路提供便利的電阻、電壓和電流的數字控制與調節(jié)。該應用筆記介紹了數字電位器的基本功能，說明了如何改進數字電位器以提...

Abstract: Abstract: Both the DS1847 and DS1848 feature two 256-position digital resistors and lookup tables (LUT) to automatically adjust the resistance over a temperature range of -40°C to 95°C. The DS1848 also features 128 bytes of use...

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 whe...

Abstract: This application brief describes the two topologies used to bias optical laser drivers (open loop and closed loop) and demonstrates examples using the DS1847 digital potentiometer and the MAX3273 laser driver. A laser module desi...

Abstract: The DS1854, DS1857, and DS1858 monitor VCC, ambient temperature, and external analog inputs. This application note explains how to interpret the values stored in the Main Device SRAM and translate them into temperature and voltag...

Abstract: The purpose of this application note is to show how the DS1847/48 digital resistor calibration constants can be regenerated. This application note assumes that the reader is familiar with the Programming the Lookup Table section ...

Abstract: This application note explains packet-error checking (PEC) as it applies to the DS1862 laser-control and digital-diagnostics IC. The DS1862 incorporates a CRC-8 byte and several other special bytes to improve the reliability of t...

摘要：DS1863突發(fā)模式PON控制器集成了監(jiān)測電路，可用于配置報警、預警、查找表及其它功能。為了實現(xiàn)這些編程功能，需要一個大容量的映射寄存器，本應用筆記介紹了寄存器圖的...

摘要：DS1865突發(fā)模式PON控制器內置監(jiān)測電路，可用于配置報警、預警、查找表以及應用筆記4052 (DS1863存儲器速查指南)中的其他詳細功能。為實現(xiàn)這些編程功能，需要一個大容量的映...