Data acquisition digital potentiometers integrated. B 502 potentiometers datasheet, cross reference, circuit and application notes in pdf format. Between each resistive section and both ends of the potentiometer are tappoints which are accessible to the wiper. Digital potentiometer ics digital pot 128 step spi sngl ch 5 pieces hiletgo 2pcs x9c104 digital potentiometer module 5v 40r100k adjust bridge balance for arduino microchip mcp41010ip digital potentiometer, 256 position, 10k ohm, single, 8pin, plastic dip tube, 6. Each potentiometer is composed of 256 resistive sections. Product index integrated circuits ics data acquisition digital potentiometers. App note 4301 the zerotransistor ic, a new plateau in ic design app note 4051 using an analog voltage to control a digital potentiometer app note 20 voltage reference scaling technique increases adc accuracy to keep costs down quality and environmental data product reliability reports. Digital potentiometer board user manual mikroelektronika. Digital potentiometers design guide microchip technology.
The display is driven from a shift register and not a decoder so you will have to shift in the number you want actually the segments for that number and then the digit you want to light. Floating either terminal a or b allows the devi ce to be used as a rheostat variable resistor. Applications and uses january 10, 2017 by janet heath a digital potentiometer or digipot operates like a traditional mechanical potentiometer pot, which is a variable resistor, except the digipot is an integrated chip ic that accepts signal input rather than the physical movement of a shaft or slide. This example shows how to control a analog devices ad5171 digital potentiometer which communicates via the i2c synchronous serial protocol. Potentiometers work by varying the position of a sliding contact across a uniform resistance. Each device performs the same function as a discrete potentiometer or. This is a great addon for arduino that includes many of the functions you use in most projects leds, switches, etc. Tpl0501 256taps, singlechannel, digital potentiometer. The selected step on the ladder determines the resistance ratio. The mcp41xxx is a singlechannel device and is offered in an 8pin pdip or soic package. The mcp41010 has outstanding ac and dc characteristics, and consumes digital potentiometer, ds1804 datasheet, ds1804 pdf, pinout, data, circuit, ic, manual, substitute, parts, schematic, equivalent.
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. Quad channel, 128256position, i 2 cspi, nonvolatile digital potentiometer data sheet rev. Digital potentiometers are a three terminal device, two fixed end terminals and one wiper terminal which is used to vary the resistance. A digital potentiometer is a digitallycontrolled electronic component that mimics the analog. Digital potentiometer definition a digital potentiometer is a variable resistor which is controlled by digital signals instead of by mechanical movement. The wiper position is controlled by a threewire interface. The digital portion contains the interface, control, and registers associated with the potentiometer. The mcp41010 has outstanding ac and dc characteristics, and consumes jan 12, 2020 a potentiometer is a passive electronic component. Max5420 digitally programmable precision voltage divider. And8414 everything you wanted to know about digital. The mcp42xxx are dual digital potentiometer devices that have the same characteristics as their single digital potentiometer devices mcp41xxx. A digital potentiometer is built either from a resistor ladder integrated circuit or a digitaltoanalog converter although a resistor ladder construction is the more common. The device consists of a resistor array, wiper switches, a control section, and nonvolatile memory. The mcp41010 is a singlechannel, 8bit digital potentiometer features 10k.
The specific digital potentiometer we will use in this circuit is the mcp41 ic. Singledual digital potentiometer with spi interface microchip. How to build a digital potentiometer circuit with a mcp41. The potentiometer is implemented by a resistor array. Max5420 digitally programmable precision voltage divider for pgas. Please view our selection of digital potentiometer ics below. Tpl0501 256taps, singlechannel, digital potentiometer with. Cat5259 quad digital potentiometer pot on semiconductor.
Microchip offers digital potentiometer devices with typical endtoend resistances of 2. Jan 10, 2017 a digital potentiometer or digipot operates like a traditional mechanical potentiometer pot, which is a variable resistor, except the digipot is an integrated chip ic that accepts signal input rather than the physical movement of a shaft or slide for adjustment. The position of the ds1868 dual digital potentiometer chip. 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.
Ds2890 1wire digital potentiometer maxim integrated. Digital potentiometer development tools are available at mouser electronics. Addressable dual digital potentiomete maxim integrated. Pdf potentiometer a simple light dependent resistorbased digital.
Ad5292 digital potentiometer analog devices ad5292 enables a new level of precision calibration in industrial systems adis introduces a digital potentiometer digipot with one of the industrys best resistor tolerances, allowing designers of industrial and instrumentation equipment to meet tighter resistor matching requirements for improved. The wiper position varies linearly and is controlled via the spi interface. Know about digital potentiometer pot abstract the digital pot is a mixed signal device. Analogtodigital converters adcs 932 highspeed adcs 10msps 346 isolated adcs 33. Ds2890 3 of 27 operation the ds2890 is a single element digital potentiometer. The analog portion of the device is the threeterminal analog component called potentiometer.
Product index integrated circuits ics data acquisition digital. Resistance regulation is performed via spi communication between the additional board and the microcontroller supplied on a. In a potentiometer, the entire input voltage is applied across the whole length of the resistor, and the output voltage is the voltage drop between the fixed and sliding contact as shown below. The ds1868 dual digital potentiometer chip consists of two digitally controlled solidstate potentiometers. This device can be used as a threeterminal potentiometer or as a twoterminal rheostat. The mcp4xxx digital potentiometer daughter board allows the system designer to quickly evaluate the operation of microchip technology s mcp42xxx and mcp402x digital potentiometers. Properties of digital potentiometers digital potentiometers are integrated circuit ics, some variants have a nonvolatile memory eeprom which remembers the wiper position. Using arduino s i2c wire library, the digital pot will step through 64 levels of resistance, fading an led. Ad5207 2channel 256position digital potentiometer datasheet pdf technical report. Mikroelektronika digital potentiometer additional board the digital potentiometer additional board is used for digital resistance regulation.
Microchip mcp41103ep digital potentiometer, 10kohm. The device has a total of 256 linearly spaced tap points including the rl and rh terminals. Renesas electronics america inc rochester electronics, llc texas. Digitally controlled potentiometer xdcp datasheet the x9c102, x9c103, x9c104, x9c503 are digitally controlled xdcp potentiometers. The tpl0501 is currently offered with endtoend resistance of 100 k the internal registers of the tpl0501 can be accessed using a spicompatible interface. Oct, 2015 ds1804 datasheet pdf digital potentiometer, ds1804 datasheet, ds1804 pdf, pinout, data, circuit, ic, manual, substitute, parts, schematic, equivalent. Using arduinos i2c wire library, the digital pot will step through 64 levels of resistance, fading an led the i2c protocol involves using two lines to send and receive data. The exact wiper position of each potentiometer can be written or read.
Digital potentiometer ics are available at mouser electronics from industry leading manufacturers. Pushbutton non volatile digital potentiometers newark. Just like a regular potentiometer, a digital pot ic comes in all different values of resistance. Digital potentiometers digipots 9 digital toanalog converters dacs 334 highspeed dacs 10msps 72 precision dacs digital xray. The difference is a digital potentiometer ic is controlled by software, while a regular potentiometer is controlled manually by a person. The mcp42xxx contains two independent channels in a 14pin pdip, soic or tssop package. The wiper position of the mcp41xxx42xxx varies linearly and is controlled via. Max5487 dual, 256tap, nonvolatile, spiinterface, linear. Ti home data converters digital potentiometers digipots data converters.
The ds1803 addressable dual digital potentiometer features two independently controlled 256position potentiometers. Important design considerations to maximize system performance. The cat5259 is four digital pots integrated with control logic and. Each device performs the same function as a discrete potentiometer or variable resistor and has 256 tap points.
Digital potentiometer development tools eval kitsystem max5386, max5388, max5391, and max5393 dual, 256tap,volatile lowvoltage linear taper. Tpl0501 256taps, singlechannel, digital potentiometer with spi. Maxim integrated microchip technology nuvoton technology corporation of america on semiconductor parallax inc. Ironhorse gsd series digital potentiometer, 120240 vac input, bipolarunipolar, nema 4x, aluminum housing. Pdf a digital potentiometer, which can be used to implement automatic calibration. Device control is achieved through a 2wire serial interface. 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. Singledual digital potentiometer with spi interface. Three address pins allow up to 8 ds1803s to share the same 2wire interface. X9c102, x9c103, x9c104, x9c503 datasheet renesas electronics.
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