DS1856B-M50

Series:	--
Packaging:	Tray
Part Status:	Obsolete
Taper:	Linear
Configuration:	Rheostat
Number of Circuits:	2
Number of Taps:	256
Resistance (Ohms):	50k
Interface:	I²C
Memory Type:	Non-Volatile
Voltage - Supply:	2.85 V ~ 5.5 V
Features:	Temperature Sensor
Tolerance:	±20%
Temperature Coefficient (Typ):	±50 ppm/°C
Resistance - Wiper (Ohms) (Typ):	--
Operating Temperature:	-40°C ~ 95°C
Package / Case:	16-LBGA, CSPBGA
Supplier Device Package:	16-CSBGA (4x4)
Base Part Number:	DS1856

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Data Acquisition - Digital PotentiometersDigital potentiometers are an essential tool in the design and implementation of electric and electronic equipment. They provide a way to control an adjustable quantity - in this case, voltage or current - based on input parameters. This makes them extremely useful in data acquisition and monitoring operations. The DS1856B-M50 is a perfect example of a digital potentiometer and its applications and working principles.The DS1856B-M50 is a 16-bit digital potentiometer with 256 taps, and can provide a maximum output of up to 20 volts. It is designed to be used in high-precision systems requiring a wide range of adjustment capabilities, such as power supplies, PID controllers, and voltage regulators. It is constructed with a sliding contact structure, and is powered by a 5V supply.In terms of applications, the DS1856B-M50 is designed to provide adjustable voltage and current tolerances for a variety of electric and electronic systems. For instance, it can be used to regulate the output of a power supply, or for providing more precise control over current ranges. Additionally, it can be used to provide adjustment for PID controllers and voltage regulators, allowing for more precise control over electricity-throughput ratios.The DS1856B-M50 also has several features which make it suitable for use in various systems. For example, it offers hardware protection to prevent the potentiometer from becoming damaged. It also has an anti-EMI input protection function to ensure that voltage contamination does not interfere with the operation of the potentiometer. Finally, it has a non-volatile memory capacity, ensuring that all settings are retained even when the unit is powered down.The working principle of the DS1856B-M50 is similar to that of other digital potentiometers, as it uses a sliding contact structure to vary the Resistance. When voltage is supplied to the potentiometer, the current flows through the sliding contact structure, setting the level of resistance. This resistance is relative to the voltage supplied, so by adjusting the voltage the resistance can be adjusted. The amount of resistance is controlled via a digital interface, which can either be manual or automated.The main advantage of the DS1856B-M50 is its high precision and reliability. It is designed to operate accurately at a wide range of temperatures and under varying conditions, making it an ideal choice for applications in demanding environments. Additionally, its anti-EMI input protection ensures that the signal remains clean and consistent, even in the presence of electrical noise.In conclusion, the DS1856B-M50 is an ideal digital potentiometer for applications in which adjustable voltage and/or current output is needed. Its features of hardware protection, anti-EMI input protection, and non-volatile memory make it well suited for use in demanding situations, and its precision and reliability make it an excellent choice for data acquisition and monitoring operations.

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