ISL22343UFR20Z-TK

Series:	XDCP™
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Taper:	Linear
Configuration:	Potentiometer
Number of Circuits:	4
Number of Taps:	256
Resistance (Ohms):	50k
Interface:	I²C
Memory Type:	Non-Volatile
Voltage - Supply:	2.25 V ~ 5.5 V
Features:	Selectable Address
Tolerance:	±20%
Temperature Coefficient (Typ):	±45 ppm/°C
Resistance - Wiper (Ohms) (Typ):	70
Operating Temperature:	-40°C ~ 125°C
Package / Case:	20-VQFN Exposed Pad
Supplier Device Package:	20-QFN-EP (5x5)
Base Part Number:	ISL22343

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Data Acquisition - Digital PotentiometersData acquisition refers to the process of recording information such as temperature, pressure, and position from a variety of sources. Digital potentiometers are a specific type of data acquisition device which measure and control the electrical potential of a system. The ISL22343UFR20Z-TK from Intersil is an example of such a device. This application note will provide an overview of the device, its application field and working principle.The ISL22343UFR20Z-TK is an integrated circuit (IC) that provides a bidirectional digital potentiometer. The device has a 32-point resistance network and can provide a resolution of up to 5 mΩ. It has an operating voltage range from 2.3V to 3.6V and is designed for use in harsh industrial and automotive applications that require high reliability and accuracy.The device is ideal for applications that require the control of an adjustable resistance such as signal conditioning, power control, calibration, and gain setting. It provides low power consumption, fast operation, and a low external component count. The device is compatible with a wide range of digital communication interfaces including Serial Peripheral Interface (SPI), Inter-Integrated Circuit (I2C), and Load Current Communication Interface (LCCI).The ISL22343UFR20Z-TK utilizes a two terminal potentiometer with two switchable banks and a single digital control line. This allows a user to control the wiper position of both banks independently. The device’s internal switching mechanism is designed to minimize the power consumption and minimize on-resistance variations. Additionally, the device offers a low output impedance for enhanced linearity and accuracy.The device is designed to minimize the power consumption and bandwidth requirements, allowing for a wide range of system operating speeds. It offers a variety of options for power saving modes such as low power mode, sleep mode and power-down mode. In addition, the device supports data latch for communication synchronization and data misalignment protection. The device also offers integrated short-circuit and over-temperature protection.Overall, the ISL22343UFR20Z-TK is an ideal choice for digital potentiometer applications that require fast control, low power and high performance. It provides a wide variety of features that make it suitable for a range of applications in the automotive, industrial and consumer electronics industries. The device is available in a variety of package sizes and is compatible with a range of communication interfaces.

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