Digital Potentiometer

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Digital Potentiometer Specification

Operating Voltage
2.7V to 5.5V

Measuring Range
1 k to 100 k

Power Supply
5V DC

Features
Non-volatile memory, Low power, Compact size

Test Range
1 k to 100 k (model dependent)

Display Type
No display, digital output

Frequency
Up to 1 MHz (I2C/SPI clock)

Application
Electronic adjustable resistance, Volume control, Sensor calibration

Humidity
0 to 85% RH (non-condensing)

Resolution
8-bit (256 steps)

Mounting Type
Through Hole / SMD

Port Size
Standard 16-pin DIP/SOIC

Accuracy
1% resistor tolerance

Equipment Type
Digital Potentiometer

Interface Type
I2C/SPI

Response Time
2 s (typical)

Automation Grade
Automatic

Temperature
-40C to +125C

Max Height
4.5 mm (package height)

Usage
Programmable resistance for circuits

Capacity
50mA max per channel

Machine Weight
1.2 kg

Control Mode
Digital

About Digital Potentiometer

Digital Potentiometer

You will get best quality Digital Potentiometer here at Dolphin Pharmacy Instruments Pvt. Ltd. It is widely used for scaling as well as trimming analog signals by microcontrollers. This product is accustomed with digit LED display, electrode stand etc. Our offered device has a compact design which can be easily installed and maintained. Digital Potentiometer provides accurate measurement and excellent performance.

Salient Features :

Range 0 to-1999 mv.
Resolutions 1 mv.
Accuracy-1%, Power supply 230v 10%

Digital Potentiometer :

For Redox Potential Measurement : 3 1/2 digit LED Display, Range : 0 to-1999 mv., Resolutions : 1 mv., Accuracy :-1%, Power supply : 230v-10% AC Supplied with O.R.P. Electrode Stand and Dust Cover.

Programmable Resistance for Automation

Digitally controlled, this potentiometer enables precise resistance adjustments using standard I2C or SPI interfaces. Its 8-bit resolution offers fine tuning across a 1 k to 100 k range, making it suitable for applications like sensor calibration, audio volume adjustments, and electronic circuit prototyping. Its compatibility with standard 16-pin DIP or SOIC packages and mixed mounting options ensures seamless integration.

Robust Design for Diverse Conditions

The potentiometer is engineered to withstand environmental extremes, operating from -40C to +125C and tolerating 0 to 85% non-condensing humidity. ESD protection rated at 4 kV (HBM) and a durable shell with indefinite shelf life ensure reliability in industrial and commercial deployments. RoHS compliance supports environmentally conscious manufacturing.

FAQs of Digital Potentiometer:

Q: How is the resistance adjusted on this digital potentiometer?

A: The resistance is adjusted digitally using either I2C or SPI protocols, depending on the model. A microcontroller or digital signal can set the desired value via these interfaces, allowing for precise control in 256 discrete steps (8-bit resolution).

Q: What are the key benefits of using this product in electronic circuits?

A: This digital potentiometer provides high accuracy (1% tolerance), flexible configuration (single, dual, or quad channel), and robust ESD protection of up to 4 kV. Its non-volatile memory options and compact size make it suitable for automated and space-constrained systems, while ensuring consistent performance across various environments.

Q: When should I choose a volatile versus a non-volatile memory model?

A: Choose non-volatile memory if you need the potentiometer to retain its resistance setting after power is removed. Volatile memory is suitable if the resistance will be reconfigured at each power-up or in temporary setups where persistence is not required.

Q: Where can this potentiometer be integrated within a system?

A: The device is designed for easy integration into electronic circuits using its standard 16-pin DIP or SOIC layout, and is compatible with both through-hole and surface-mount installation. It fits various applications such as adjustable power supplies, audio electronics, and sensor calibration modules.

Q: What is the process for programming or adjusting resistance values?

A: To program resistance, connect the potentiometer to a microcontroller using the I2C or SPI interface. Send the appropriate digital commands addressing the device and specifying the resistance step. The wiper will move to the selected position, establishing the chosen resistance value.

Q: How does ESD protection benefit my application?

A: With a 4 kV Human Body Model (HBM) ESD rating, the potentiometer is safeguarded against electrostatic discharges that can occur during handling or operation. This feature enhances reliability and extends the operating life, particularly in industrial or automation environments.

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