HomedatasheetX9421WV14

X9421WV14 Datasheet

Data Acquisition - Digital Potentiometers
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Description

The X9421WV14 integrates a single digitally controlled potentiometer (XDCP) on a monolithic CMOS integrated circuit.The digital controlled potentiometer is implemented using 63 resistive elements in a series array. Between each element are tap points connected to the wiper terminal through switches. The position of the wiper on the array is controlled by the user through the SPI bus interface. The potentiometer has associated with it a volatile Wiper Counter Register (WCR) and a four nonvolatile Data Registers that can be directly written to and read by the user. The contents of the WCR controls the position of the wiper on the resistor array though the switches. Powerup recalls the contents of the default data register (DR0) to the WCR.The XDCP can be used as a three-terminal potentiometer or as a two terminal variable resistor in a wide variety of applications including control,parameter adjustments, and signal processing. X9421WV14 Features &bull; Single Voltage Potentiometer&bull; 64 Resistor Taps&bull; SPI Serial Interface for Write, Read, and Transfer Operations of the Potentiometer&bull; Wiper Resistance, 150Ω Typical at 5V&bull; 4 Non-Volatile Data Registers &bull; Non-Volatile Storage of Multiple Wiper Positions&bull; Power-on Recall. Loads Saved Wiper Position on Power-up.&bull; Standby Current < 5&micro;A Max &bull; VCC : 2.7V to 5.5V Operation&bull; 2.5kΩ, 10kΩ End to End Resistance&bull; 100 yr. Data Retention&bull; Endurance: 100, 000 Data Changes per Bit per Register&bull; 14 Ld TSSOP, 16 Ld SOIC&bull; Low Power CMOS&bull; Pb-Free Plus Anneal Available (RoHS Compliant)
Features

Parameters

[{"Name":"Taps","Value":"64"},{"Name":"Resistance (Ohms) ","Value":"10k"},{"Name":"Number of Circuits ","Value":"1"},{"Name":"Temperature Coefficient ","Value":"±300 ppm/°C Typical "},{"Name":"Memory Type ","Value":"Non-Volatile "},{"Name":"Interface ","Value":"5-Wire SPI (Chip Select, Device Address) "},{"Name":"Voltage - Supply ","Value":"4.5 V ~ 5.5 V "},{"Name":"Operating Temperature ","Value":"0°C ~ 70°C "},{"Name":"","Value":""},{"Name":"","Value":""}]

Manufacturer information

SEIKO INSTRUMENTS
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