ISL23345WFVZ

Memory Type:	Volatile
Base Part Number:	ISL23345
Supplier Device Package:	20-TSSOP
Package / Case:	20-TSSOP (0.173", 4.40mm Width)
Operating Temperature:	-40°C ~ 125°C
Resistance - Wiper (Ohms) (Typ):	70
Temperature Coefficient (Typ):	125 ppm/°C
Tolerance:	±20%
Features:	Selectable Address
Voltage - Supply:	1.2 V ~ 5.5 V, 1.7 V ~ 5.5 V
Series:	XDCP™
Interface:	I²C
Resistance (Ohms):	10k
Number of Taps:	256
Number of Circuits:	4
Configuration:	Potentiometer
Taper:	Linear
Part Status:	Obsolete
Packaging:	Tray

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ISL23345WFVZ Application Field and Working Principle

ISL23345WFVZ is a digital potentiometer made by Intersil that is suitable for use in a variety of applications, such as automotive, communications, consumer, industrial, medical and power management. It consists of a digitally-programmable resistor with a resistance rating of up to 50 KΩ, and a non-volatile EEPROM memory capable of storing up to eight 16-bit wiper register values. The device features a wide operating range of 2.7V to 5.5V and comes in a space-saving 10-pin, 2mm x 3mm DFN package. Digital potentiometers have various uses including electronic volume control, filter control and adjustable gain. In terms of its working principle, the ISL23345WFVZ works on a resistance divider principle. Resistance dividers are made up of two or more resistors in series. When a voltage is applied to the resistance divider, a fraction of it is dropped across each resistor. By altering the resistance of the potentiometer, the fraction of the total voltage drop is modified, resulting in the desired gain or voltage output. The ISL23345WFVZ is a monolithic digital potentiometer that features low power operation, modern adjustment-speed auto-switchover, high voltage operation, up to 256 taps, a gain of 10%, and a minimum voltage difference of 0.5%. It is designed to be used in conjunction with the Intersil proprietary digital potentiometer system, which allows it to accurately adjust the 16-bit wiper register values stored in its EEPROM memory. The functionality of the device is determined by the commands written to the control port of the EEPROM. By writing the desired resistance setting to the register, the device can be adjusted accordingly. The EEPROM also allows for the installation of up to three unique configurations. This allows the user to set the device to their desires without having to incur the cost of re-programming or replacing the entire device. Overall, with its wide voltage range and 16-bit wiper registers, the ISL23345WFVZ is highly reliable and efficient, which makes it ideal for use in many fields. Its non-volatile memory and digital potentiometer system make it ideal for applications where precise adjustments need to be done quickly and accurately. By allowing the user to quickly switch between configurations, its easy to use, allowing the user to quickly adjustments the settings of the device.

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