Users may, at their discretion, load a 3 pin mte cable header. Ad5160 256position spi compatible digital potentiometer data. Potentiometer or pots, are three terminal devices, used to vary the resistance in a circuit. Buy products related to digital potentiometer products and see what customers say about digital potentiometer products on free delivery possible on eligible purchases. Compare and select from tis portfolio of digital potentiometers to meet the needs of your system design. The digilent pmod dpot is a digital potentiometer allowing users to set a desired resistance anywhere from 60 to a nominal 10 k tutorials. However, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or other.
C document feedback information furnished by analog devices is believed to be accurate and reliable. For an explanation of spi see the spi library reference. Digital potentiometers design guide supporting digital potentiometer applications, including. The digital potentiometer easily generates a voltage divider at wipertob and, of the digital potentiometer in the divider mode results in a more accurate operation over. The tpl0501 device is a singlechannel, lineartaper, digital potentiometer with 256 wiper positions.
The first block sets the resistance of the digital potentiometer ad5160 see figure in order to generate. Power pulsing scheme for analog and digital electronics of the. Ds2890 1wire digital potentiometer maxim integrated. A digital potentiometer is a digitallycontrolled electronic component that mimics the analog. The pmoddpot utilizes analog devices ad5160 to digitally set a desired. For those applications where the programming of the digital pot is an ongoing. Pmoddpot reference manual overview 1 functional description. Ad5171 series digital potentiometer ics are available at mouser electronics. Available in four different endtoend resistance values 5k, 10k, 50k, ad5160 256 position digital potentiometer ad5160 electrical characteristics 5k. Instead, the digital pot is programmed using push button switches to generate the control signals for the updn, inc, and cs inputs. Digital potentiometers are a three terminal device, two fixed end terminals and one wiper terminal which is used to vary the resistance. Digital potentiometer additional board the digital potentiometer additional board is used for digital resistance regulation. Resistor noise voltage parameter conditions rwb 50k, va vcc, operation the digital potentiometer family as150x offers nominal resistor values of 10k, 20k, 50k and 100k, soic 8 pin soic 8 pin soic 8 pin soic 8 pin soic description 8bit digital potentiometer 8bit digital, description the as1500 is a digital potentiometer with 256.
Dc characteristics potentiometer divider mode specifications apply to all vrs resolution. Ad5160brjz10r2 datasheet pdf 1 page analog devices. The digilent pmod dpot is a digital potentiometer allowing users to set a desired resistance anywhere from 60 to a nominal 10 k. Max5487 dual, 256tap, nonvolatile, spiinterface, linear. Digilent pmoddpot digital potentiometer reference manual. I want to test the ad5241 to make sure it works as designed. How to measure the resistance of digital potentiometer ad5241. Ad 256position spi compatible digital potentiometer,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. A digital potentiometer is built either from a resistor ladder integrated circuit or a digital toanalog converter although a resistor ladder construction is the more common. Learn how to use a digital potentiometer, specifically the digilent pmoddpot board based on the analog devices ad5160. Spi digital potentiometer ics are available at mouser electronics.
Digital potentiometer is also called digital pot in short. Normally lurking unseen inside stereo systems, the digital potentiometer needs no adjustment, because it adjusts itself. How to use digital potentiometers to control light and sound. Get the reliability, ease of design and quick calibration you need. Quad channel, 128256position, i2cspi, nonvolatile digital potentiometer data sheet ad5124ad5144ad5144a rev. Quad channel, 256position, i 2 c, nonvolatile digital potentiometer. It can be applied to applications such as led dc dimming, linear stable voltage source, oscillator, low pass filter or differential amplifier. But when i turn on my motor controller with a digital potentiometer connected, the resistance immediately goes very high measured this with multimeter.
Users can access the pmoddpots programmed resistance through two methods. I am looking for some help with the wiring involved in the removal of the existing pot and replacing it with the digital pot. This will allow me to control the speed of the motor using labview on a pc. The device has a total of 256 linearly spaced tap points including the rl and rh terminals. Digital potentiometer ics are available at mouser electronics from industry leading manufacturers. Ad5160 datasheet, ad5160 pdf, ad5160 data sheet, ad5160 manual, ad5160 pdf, ad5160, datenblatt, electronics ad5160, alldatasheet, free, datasheet, datasheets, data. Adjust your resistance with digital potentiometers. Integrated circuits ics data acquisition digital potentiometers are in stock at digikey.
Ad5160 256position spicompatible digital potentiometer components datasheet pdf data sheet free from datasheet data sheet search. Vmsawbdut datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes and other semiconductors. Information furnished by analog devices is believed to be accurate and reliable. With 256 possible step values, a resistance between 60.
Digital potentiometers are useful when you need to vary the resistance in a circuit electronically rather than by hand. The pmod dpot is a digital potentiometer powered by the analog devices ad5160. And8417 push button control of digital potentiometers pots. Pmoddpot allows a pmod compatible host board to control a digital potentiometer. Ad5160 series digital potentiometer ics are available at mouser electronics. Ti home data converters digital potentiometers digipots data converters.
A digital potentiometer also known as digipot, is similar to a standard analogue potentiometer, which is a variable resistor except the digital potentiometer has an integrated chip ic that accepts a signal input rather than. For example connecting aterminal to 5 v and bterminal to ground produces an output voltage at the wiper which can be any value starting at zero volts up to 1 lsb less than 5 v. Ad, alldatasheet, datasheet, datasheet search site for electronic. Data acquisition digital potentiometers integrated. Ad5160 programming the potentiometer divider voltage output operation the digital potentiometer easily generates a voltage divider at wipertob and wipertoa proportional to the input voltage at atob. The max5160max5161 lineartaper digital potentiometers perform the same function as a mechanical potentiometer or a variable resistor. Demo code uses msp430fr5969 launchpad to control ad5160 8bit digital potentiometer from serial terminal. The difference is that analog potentiometers are controlled by the rotational position of a control shaft, and the resistance of a digital potentiometer is determined by a digital. The primary means of access is via a three point screw terminal available on every pmoddpot. Unlike the polarity of vdd to gnd, which must be positive, voltage across a to b, w to a, and w to b can be at either polarity. Designed this pmod around the analog devices ad5160 digital potentiometer. In this tutorial you will learn how to control the ad5206 digital potentiometer using serial peripheral interface spi.
Digital potentiometers design guide microchip technology. Functional description for a detailed description of the analog devices ad5160 please refer to the device data sheet available at. Datasheet search engine for electronic components and semiconductors. When cs returns high, data will be loaded into the dac register. They consist of a fixed resistor and a wiper contact with 32 tap points that are digitally controlled by three lines for the 8pin max5160 or by two lines for the 6pin max5161. A information furnished by analog devices is believed to be accurate and reliable. Hi,i wish to replace a mechanical potentiometer on a motor control board which is used to control the speed of a motor with a digital potentiometer. Ad5160 pin descriptions pin name description 1 v w w terminal 2 v dd positive power supply 3 gnd ground 4 clk serial clock input, positive edge triggered 5 sdi serial data input 6 cs chip select input, active low. The max5487max5488max5489 dual, lineartaper, digital potentiometers function as mechanical potentiometers with a simple 3wire spicompatible digital interface that programs the wipers to any one of 256 tap positions. However, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use.
Resistance is selected in 1k increments in the range 010k. My question is how can i measure the resistance of ad5241 when power on. Please view our selection of digital potentiometer ics below. And8414 everything you wanted to know about digital. These devices perform the same electronic adjustment function as mechanical potentiometers1 or variable resistors but with enhanced resolution, solidstate reliability, and superior low temperature coefficient performance. I can successfully communicate with these devices through arduino and see the resistance change according to the codes i send. Ad5160 pdf, ad5160 description, ad5160 datasheets, ad5160. Ds2890 3 of 27 operation the ds2890 is a single element digital potentiometer. I have designed a transimpedance amplifier including a digital potentiometer ad5241. Resistance regulation is performed via spi communication between the additional board and the microcontroller supplied on a development system.
For an explanation of spi see the spi library reference digital potentiometers are useful when you need to vary the resistance in a circuit electronically rather than by hand. We know the analog potentiometer, is a threeterminal resistor with a sliding contact that forms an adjustable voltage divider. The digilent pmoddpot is a digital potentiometer allowing users to set a desired. Ad5207 2channel 256position digital potentiometer datasheet pdf technical report. Ad5160 100 data sheet, alldatasheet, free, databook. Feb 05, 2020 hi, i wish to replace a mechanical potentiometer on a motor control board which is used to control the speed of a motor with a digital potentiometer. The digilent pmoddpot is a digital potentiometer allowing users to set a desired resistance anywhere from 60 to a nominal 10 k 1 functional description the pmoddpot utilizes analog devices ad5160 to digitally set a desired resistance between two terminals. Evaluation board for the ad5160 digital potentiometer. Hi, i wish to replace a mechanical potentiometer on a motor control board which is used to control the speed of a motor with a digital potentiometer. Ad5160, a 256position spii 2 cselectable digital potentiometer. The digital portion contains the interface, control, and registers associated with the potentiometer. Ad, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. The digital potentiometer easily generates an output voltage proportional to the input voltage applied to a given terminal.
It is a kind of mixed signal ic, which is able to dynamically change the internal resistors through mcu like arduino. Recent listings manufacturer directory get instant insight into any electronic component. Microchip offers digital potentiometer devices with typical endtoend resistances of 2. Its fluctuating resistance can change the color or brightness of a light, the loudness or frequency of a sound, or any other parameters that depend on voltage and current. The analog portion of the device is the threeterminal analog component called potentiometer. Ad5160 datasheet, ad5160 datasheets, ad5160 pdf, ad5160 circuit. Digilent engineers designed this pmod around the analog devices ad5160 digital potentiometer. Replacing mechanical potentiometer with digital potentiometer. This means it has six variable resistors potentiometers built in for individual electronic control. Digital potentiometer datasheet, digital potentiometer pdf, digital potentiometer data sheet, datasheet, data sheet, pdf. Ad5160 serial dataword formatb7b6b5b4b3b2 datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes and other semiconductors. Each potentiometer has three accessible terminals, which include h, l, and w. Everything you wanted to know about digital potentiometer pot abstract the digital pot is a mixed signal device.
The ds1808 is a dualchannel, digitally controlled, logarithmic potentiometer. Ad5160 256position spi compatible digital potentiometer. The pmod dpot utilizes analog devices ad5160 to digitally set a desired resistance between two terminals. Ad5160 digital potentiometer from analog devices, which features 256 positions. Between each resistor element is a tappoint that is multiplexed to the wiper terminal, w. A block diagram of the ds1808 is shown in figure 1. Tpl0501 256taps, singlechannel, digital potentiometer with spi. One of the most common types of variable resistors is the potentiometer. Evalad5160dbz evaluation board using the ad5160 256position spicompatible digital potentiometer.
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