AD5170BRM2.5

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Taper:	Linear
Configuration:	Potentiometer
Number of Circuits:	1
Number of Taps:	256
Resistance (Ohms):	2.5k
Interface:	I²C
Memory Type:	OTP
Voltage - Supply:	2.7 V ~ 5.5 V
Features:	Selectable Address
Tolerance:	±20%
Temperature Coefficient (Typ):	35 ppm/°C
Resistance - Wiper (Ohms) (Typ):	160
Operating Temperature:	-40°C ~ 125°C
Package / Case:	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Supplier Device Package:	10-MSOP
Base Part Number:	AD5170

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Data Acquisition: Digital Potentiometers

Digital potentiometers are usually used by system designers and electronic engineers as a way to adjust the electrical properties of electronic circuits. By using digital potentiometers, they can modify the gain andattenuation characteristics of audio signals and can also be used to adjust the resistance of a circuit and so on. AD5170BRM2.5 is a 5 kOhm single-channel digital potentiometer, with 10-bit resolution (1024 steps of resistance) and SPI interfacing. In this article, we will talk about the application field and working principle of the AD5170BRM2.5.ApplicationsThe AD5170BRM2.5 is mainly used in adjusting audio and video systems as well as other electrical circuit designs. It has excellent electrical characteristics such as 10-bit resolution, 5 kOhm resistance, low output impedance, and low on-resistance. These characteristics make the AD5170BRM2.5 suitable for applications such as controlling the gain of audio amplifiers, attenuating a signal, or adjusting the resistance of a circuit.Another important application of the AD5170BRM2.5 is in controlling the brightness of large LCD display screens. LCD displays typically require a large number of precision analog-to-digital converters, which can be accomplished with the help of digital potentiometers such as the AD5170BRM2.5. In addition, the AD5170BRM2.5 is also used for adjusting LCD displays\' color balance, power saving, and temperature-controlled backlighting.The AD5170BRM2.5 can also be used in LED lighting, as LED drivers require precise control of all of the LED lights in a lighting system. By using the AD5170BRM2.5, a lighting engineer can precisely adjust the amount of each LED individually, providing more control over the overall brightness of the system.Working PrincipleThe AD5170BRM2.5 is a 5 kOhm single-channel digital potentiometer, which consists of a resistive element and a control terminal connected to the resistive element. Digital potentiometers use an Analog-to-Digital Converter (ADC) to convert the binary code into a corresponding analog output voltage. The ADC translates the binary code, which is proportional to the specific resistance of the resistive element, into a corresponding analog voltage.The AD5170BRM2.5 features 10-bit resolution, meaning that it has 1024 steps of resistance. This resolution provides better control over the output voltage, as the specific resistance of the resistive element can be changed very precisely. The control terminal of the AD5170BRM2.5 is connected to an external device such as a microcontroller which can be used to control the resistance.The AD5170BRM2.5 also has a SPI interfacing which allows it to communicate with an external controller. The SPI interface is used to write to and read from the internal registers of the digital potentiometer. With the help of this interface, a designer can easily control the resistance of the digital potentiometer.ConclusionIn conclusion, the AD5170BRM2.5 is a 5 kOhm single-channel digital potentiometer, with 10-bit resolution (1024 steps of resistance) and SPI interfacing. It has wide application field, such as in audio and video systems, LCD displays, LED lighting, and other electrical circuits. The working principle of the AD5170BRM2.5 is to use an Analog-to-Digital Converter to convert the binary code into a corresponding analog output voltage. By writing to or reading from its internal registers with the help of SPI interfacing, it is very easy to control the resistance of the digital potentiometer.

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