Abstract: Residual phase noise from local oscillators (LO) can be degraded by additive noise of on-chip local oscillator drivers/buffers in integrated circuit mixers. Reciprocal mixing of strong RF signals with the LO noise degrades the re...

Abstract: An isolated transformer-driver IC (MAX845) and small external transformer produce an isolated gate-control signal for a power FET. Designers of power electronic circuits must often drive power switches that feed...

摘要：DS3984, DS3988, DS3881, DS3882, DS3992和DS3994為冷陰極熒光燈(CCFL)控制器，它們使用推挽結(jié)構(gòu)來產(chǎn)生驅(qū)動熒光燈所需的高壓交流波形。在推挽式驅(qū)動器中，升壓變壓器的寄生電感與n溝...

摘要：本應(yīng)用筆記說明如何對MAX2010 (可調(diào)節(jié)RF預(yù)失真器)標(biāo)準(zhǔn)評估板進(jìn)行下蓋，使其工作頻率優(yōu)化在450Hz。默認(rèn)情況下，預(yù)失真器工作在500MHz至1000MHz，但是，對MAX2010評估板稍做修改，...

摘要：本應(yīng)用筆記說明如何對MAX2010 (可調(diào)節(jié)RF預(yù)失真器)標(biāo)準(zhǔn)評估板進(jìn)行下蓋，使其工作頻率優(yōu)化在360Hz。默認(rèn)情況下，預(yù)失真器工作在500MHz至1100MHz，但是，對MAX2010評估板稍做修改，...

摘要：DS1870用于射頻(RF)功率放大器偏置控制，如果不接外部電阻，采用5V基準(zhǔn)，其偏置電壓范圍為3V至5V。本應(yīng)用筆記旨在展示如何利用外接電阻達(dá)到適當(dāng)?shù)姆秶头直媛省？梢岳?..

摘要：LDMOS RF功率放大器因其極高的性價比在GSM和CDMA基站市場占據(jù)了主導(dǎo)地位。使用LDMOS放大器時，保證高性能的一個關(guān)鍵因素是補(bǔ)償柵極偏置電壓，以在溫度變化時保持恒定的靜態(tài)...

A digitally adjustable voltage reference is useful in many applications. For instance, it can be used to finely tune the reference voltage when absolute accuracy is required or to adjust the reference voltage to match the full-scale voltag...

There are many portable applications that optimize circuit performance by adjusting the output voltage of a DC-DC converter. For instance, many microprocessors can operate at a low voltage to save power, and then operate at a high voltage ...

Abstract: This application note describes how to use a digital potentiometer to generate an adjustable voltage supply using a MAX1776 step-down DC-DC converter. A reference design using the DS3903 is shown that features the ability to prod...

摘要：本文闡述了如何使用DS1841對數(shù)電位器調(diào)節(jié)APD偏置電路的輸出范圍。為了使調(diào)節(jié)過程更簡單，本文還提供了電子數(shù)據(jù)表。 APD偏置電路DS1841可受溫度控制的...

Abstract: This circuit, which uses a digital potentiometer (pot) and a comparator, features droopless operation that is not normally associated with peak detectors that have traditionally used rectifiers and sample-and-holds (S/H). ...

Abstract: This article discusses application circuits for Maxim force/sense digital-to-analog converters (DACs). Applications include: selectable fixed-gain DAC, programmable gain DAC, photodiode bias control, amperometric sensor control, ...

Abstract: The MAX4172 IC substitutes a current amplifier for the shunt normally associated with a moving-coil meter. This circuit allows use of the moving-coil meter, even when the meter current is a large fraction of the current being mea...

摘要：許多裝置需要一個用戶接口來調(diào)整溫度、背光強(qiáng)度和電源電壓等，這個用戶接口需要能夠避免按鍵調(diào)整中的誤操作。若在這些裝置中使用一個數(shù)字電位器，設(shè)計人員可以通過...

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...