DS1882Z-050+

Memory Type:	Non-Volatile
Base Part Number:	DS1882
Supplier Device Package:	16-SO
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 85°C
Resistance - Wiper (Ohms) (Typ):	160
Temperature Coefficient (Typ):	750 ppm/°C
Tolerance:	±20%
Features:	Mute, Selectable Address, Zero-Cross Sense
Voltage - Supply:	4.5 V ~ 7 V
Series:	--
Interface:	I²C
Resistance (Ohms):	45k
Number of Taps:	64
Number of Circuits:	2
Configuration:	Potentiometer
Taper:	Logarithmic
Part Status:	Active
Packaging:	Tube

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DS1882Z-050+ Application Field and Working Principle

Data Acquisition - Digital Potentiometers includes products such as the DS1882Z-050+ Digital Potentiometer (DIP), which features a low power consumption, 16-bit non-volatile memory storage (EEPROM) and low-noise operation. The output of the device is proportional to the setting stored in the device. In addition, the DS1882Z-050+ can be used in automotive applications, and is suitable for use in a controlled environment, such as laboratory, military, aerospace and automation.

DS1882Z-050+ Overview

The DS1882Z-050+ is a Digital Potentiometer with a variable resistor that can be adjusted by an electronic circuit. The device has 16 bits of non-volatile memory (EEPROM) that stores the offset of the variable resistor setting, providing a wide range adjustable gain and offset for each digital potentiometer. It also has an on-board PWM generator for D/A conversion and switchable current selection (8-bit/16-bit). The DS1882Z-050+ can be used in a wide variety of applications, such as data acquisition, automotive, aerospace, military and automation.

The Principle behind Digital Potentiometers

Digital Potentiometers work by the variation of electric current through the variable resistor. The variable resistor is comprised of a variable resistor with an associated electronic circuit. The electronic circuit can be configured to adjust the ohms range (resistance) of the variable resistor by adjusting the resistance level. This can be done by varying the current supplied to the resistance.The current supplied to the variable resistor can be predefined (e.g. an onboard current source) or it can be set with a voltage supply. Once the current levels are established, the current can be varied to provide a changing resistance level. The resistance level can then be used to determine the output of the potentiometer.

Applications Of Digital Potentiometers

Digital Potentiometers are used in a wide variety of applications, such as data acquisition, automotive, military, aerospace, and automation. Examples of these applications include:

• Automotive - Digital potentiometers are used to control the air-flow, fuel emission and engine performance.
• Military Applications - Digital potentiometers are used in different military applications such as targeting system, bombing systems, and others.
• Aerospace Applications – Digital potentiometers are used in aircrafts to adjust the pitch and yaw settings and to adjust the control settings.
• Data Acquisition - Digital potentiometers are used in data acquisition applications in order to precisely control the gain and offset of various analog or digital signals.
• Automation – Digital potentiometers are used in automation applications to precisely adjust the speed and position settings of robotic arms, robot legs and other automation systems.

Conclusion

The DS1882Z-050+ Digital Potentiometer is a versatile device that is suitable for use in a wide range of applications, such as automotive, military, aerospace, data acquisition and automation. The device has a 16-bit non-volatile memory storage (EEPROM) and low-noise operation, with an on-board PWM generator for D/A conversion and switchable current selection. The resistance level of the device can be adjusted by varying the current supplied to the variable resistor, providing a wide range adjustable gain and offset for each digital potentiometer.

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