AD5273BRJZ50-REEL7

Memory Type:	OTP
Base Part Number:	AD5273
Supplier Device Package:	SOT-23-8
Package / Case:	SOT-23-8
Operating Temperature:	-40°C ~ 105°C
Resistance - Wiper (Ohms) (Typ):	60
Temperature Coefficient (Typ):	300 ppm/°C
Tolerance:	±30%
Features:	Selectable Address
Voltage - Supply:	2.7 V ~ 5.5 V
Series:	--
Interface:	I²C
Resistance (Ohms):	50k
Number of Taps:	64
Number of Circuits:	1
Configuration:	Potentiometer
Taper:	Linear
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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AD5273BRJZ50-REEL7: Data Acquisition – Digital Potentiometers

Data acquisition is the process of collecting data from computer systems, networks and other sensors. Digital potentiometers are one of the most commonly used devices for data acquisition applications. This article will explore the application fields and working principle of the AD5273BRJZ50-REEL7, a highly popular digital potentiometer from Analog Devices.

Overview of AD5273BRJZ50-REEL7

The AD5273BRJZ50-REEL7 is a versatile digital potentiometer featuring an onboard EEPROM and a 3-wire serial interface that allows it to integrate easily into a wide range of applications. It features a 16-bit LED-programmable resistor element with a 32k count resolution and a 5kΩ to 100kΩ resistance range, enabling precise control over resistance. The distinctive features of the AD5273BRJZ50-REEL7 include an adjustable wiper current of 250 μA and a maximum wiper voltage of 6V. It provides superior ESD protection and wide operating temperature ranges from -40°C to +125°C.

Applications

The AD5273BRJZ50-REEL7 is especially suited for precision control applications in industrial, consumer and automotive markets. The device’s resistance-based control makes it highly suitable for dynamic control of electric and non-electric systems, such as controlling power output levels for radios, chair recliners and vehicle lighting systems. The device can also be used in medical device applications and for precise voltage scaling and bi-directional current sensing.

Working Principle

The AD5273BRJZ50-REEL7 works by adjusting the resistance between its two terminals via the wiper voltage. The wiper voltage is generated and regulated by the analog circuit present inside the device. The wiper voltage is applied to a resistor divider, allowing the resistance between the two terminals to be varied. The amount of resistance variation is determined by the amount of voltage being applied.The AD5273BRJZ50-REEL7 also features an on-board EEPROM, which can be used to store the desired resistance value for later use and recall. This feature makes the device highly suitable for applications requiring rapid adjustment of resistance values, such as in process control and motor control systems. Similarly, it can be used to adjust the resistance levels needed for precise voltage scaling and bi-directional current sensing.

Conclusion

The AD5273BRJZ50-REEL7 is a highly versatile digital potentiometer capable of precision control for a wide range of applications. Its adjustable wiper current and robust EEPROM make it well-suited for dynamic control and precise adjustment of resistance values. In conclusion, the AD5273BRJZ50-REEL7 digital potentiometer is the ideal device for industrial, consumer and automotive applications that require precise and reliable resistance control.

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