X9241AMST1

Series:	XDCP™
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Taper:	Linear
Configuration:	Potentiometer
Number of Circuits:	4
Number of Taps:	64
Resistance (Ohms):	2k, 10k, 10k, 50k
Interface:	I²C
Memory Type:	Non-Volatile
Voltage - Supply:	5V
Features:	Selectable Address
Tolerance:	±20%
Temperature Coefficient (Typ):	±300 ppm/°C
Resistance - Wiper (Ohms) (Typ):	40
Operating Temperature:	0°C ~ 70°C
Package / Case:	20-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	20-SOIC
Base Part Number:	X9241A

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Introduction

The X9241AMST1 is a Digital Potentiometer (DP) used for data acquisition. It is a three-terminal integrated circuit consisting of a resistor array and a control logic circuit. This device allows the designer to adjust the full-scale resistor of a bridge circuit without the need of replacing a mechanical trimmer or rotary potentiometer.

Application Fields of X9241AMST1

The X9241AMST1 is used in a range of applications such as gain control, impedance matching, active filtering, and pressure sensing, to name a few. It is also suitable for use in automotive electronics and sports equipment. The device also has a wide range of uses in industrial, medical, and consumer applications.

Working Principle of X9241AMST1

The X9241AMST1 is made up of a resistor and a control logic circuit. The resistor can be programmed by the control logic and changed in relation to a reference voltage. The AD pin receives the reference voltage and is connected to the resistor and the control circuit. The control circuit is composed of shift registers and a Digital-to-Analog Converter (DAC) that apply this voltage across the resistor. This voltage adjusts the resistance to the desired value based on the signals applied to the control logic and the reference voltage.

Conclusion

The X9241AMST1 is a digital potentiometer designed for data acquisition. It enables the simple adjustment of the full-scale resistor of a bridge circuit and is used in a variety of applications. The working principle of the device is based on the combination of the resistor and a control logic circuit and is programmed using a reference voltage.

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