Digital Potentiometers

What is a Digital potentiometer?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 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 the physical movement of a shaft or slide for adjustment. Potentiometers physically change the resistance value whereas digital potentiometers modify the resistance value via digital inputs rather than a rotary wheel or a slider.Where might I use one?Digital potentiometers would be beneficial where environmental factors would impact a mechanical potentiometer in areas where there is vibration, dust, moisture or grease as digital potentiometers are encapsulated they offer better protection, they are also less vunerable to vibration Digital potentiometers are used to calibrate system tolerances or control system parameters. What are the advantages over a mechanical potentiometer? Digital potentiometers can be operated in a closed control loop and dont need physical access to be adjusted. . They offer better stability and reliability and as digital will offer additional functionality, some even have on - chip memory Applications System calibration Process control Sensor calibration Smart actuator Voltage margining Programmable power supplies Volume control

...
Read more Read less

Filter

Visar 701 - 701 av 701 produkter
Resultat per sida
Beskrivning Pris Control Interface Resistance Value Number of Positions Taper Type Memory Type Number of Pots per Package Mounting Type Package Type Pin Count Power Supply Type Typical Single Supply Voltage Typical Dual Supply Voltage Dimensions Height
RS-artikelnummer 709-7133
Tillv. art.nrAD8402ARZ50
VarumärkeAnalog Devices
43,43 kr
Each
Enheter
Serial-3 Wire, Serial-SPI 50kΩ 256 Linear Volatile 2 Surface Mount SOIC 14 Single 3 V, 5 V - 8.75 x 4 x 1.5mm 1.5mm
Related Products
MCP45HV51 is a single-channel, high voltage digital potentiometer ...
Description:
MCP45HV51 is a single-channel, high voltage digital potentiometer (Digipot) family that supports 10V ∼36V or +/-5V to +/-18V power rails. It features 8-bit resolution with I2C interface. This family is available in TSSOP-14 and QFN-20 (5x5) packages and has 5kΩ, ...
Single-channel, 1024-/256-position resolution20 kΩ, 50 kΩ and 100 ...
Description:
Single-channel, 1024-/256-position resolution20 kΩ, 50 kΩ and 100 kΩnominal resistanceMaximum ±1% nominal resistor tolerance error50-times programmable (50-TP) wiper memoryRheostat mode temperature coefficient: 5 ppm/°C2.7 V to 5.5 V single-supply operation±2.5 V to ±2.75 V dual-supply operation for ac or bipolar ...
AD5280: 1 channelAD5282: 2 channels256 positions+10 V to ...
Description:
AD5280: 1 channelAD5282: 2 channels256 positions+10 V to +15 V single supply, ±5.5 V dual-supply operationFixed terminal resistance: 20 kΩ, 50 kΩ, 200 kΩLow temperature coefficient: 30 ppm/°CPower-on midscale preset1Programmable resetOperating temperature: −40°C to +85°CI2C-compatible ...
Dual, Audio Log Taper PotentiometersLow THD+N and Crosstalk5V ...
Description:
Dual, Audio Log Taper PotentiometersLow THD+N and Crosstalk5V Analog Supply (Independent of Digital Supply)3V to 5V Digital Supply RangePotentiometer Settings Configurable as NV or VolatileZero-Crossing Detector Eliminates Switching NoiseTwo User-Configurable Attenuation OptionsConfiguration Option 1: 63 Positions ...