AD5231BRUZ100

Memory Type:	Non-Volatile
Base Part Number:	AD5231
Supplier Device Package:	16-TSSOP
Package / Case:	16-TSSOP (0.173", 4.40mm Width)
Operating Temperature:	-40°C ~ 85°C
Resistance - Wiper (Ohms) (Typ):	50
Temperature Coefficient (Typ):	600 ppm/°C
Tolerance:	-40%, +20%
Features:	Cascade Pin
Voltage - Supply:	2.7 V ~ 5.5 V, ±2.25 V ~ 2.75 V
Series:	--
Interface:	SPI
Resistance (Ohms):	100k
Number of Taps:	1024
Number of Circuits:	1
Configuration:	Potentiometer
Taper:	Linear
Part Status:	Active
Packaging:	Tube

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Introduction The AD5231BRUZ100 is a precision digital potentiometer developed by Analog Devices Inc., a leading producer of precision integrated circuits for data acquisition applications. The device consists of a single monolithic circuit, including a 12-bit A/D converter, two independent 8-Channel Digital-To-Analog (D/A) converters and several other features, making it suitable for a wide range of applications. AD5231BRUZ100 Application Fields The AD5231BRUZ100 is ideally suited for a wide range of applications including precision instrumentation, telecommunications, control systems, automotive, audio/video, remote sensing, biomedical, and energy/solar photovoltaic systems. For instrumentation and control applications, the AD5231BRUZ100 provides a high-level of accuracy and resolution for voltage and current setting. In addition, it has the capability to provide highly accurate variable gain, variable speed, and variable impedance. The variable setting capability makes it ideal for variable gain, variable frequency, and variable impedance applications. The device is designed to provide a variable setting resolution of 1 mV, and a maximum setting accuracy of 0. 05%. The device is also suitable for a wide range of audio/video applications, such as digital volume control and equalization, parameter mixing, and flexible audio/video signal control. The digital potentiometer also provides a high level of flexibility for audio/video signal processing with its adjustable resistors and improved signal-to-noise ratio.The device provides other features such as a high accuracy temperature compensation and a power down interface that allows the device to be turned off without introducing distortion or noise. Additionally, the AD5231BRUZ100 is available in a surface mount package, making it perfect for needs demanding compact size and high accuracy. AD5231BRUZ100 Working Principle The AD5231BRUZ100 consists of two primary functional blocks – the 12-bit A/D converter and the two independent 8-Channel Digital-To-Analog (D/A) converters. The A/D converter receives a signal from an external Voltage Reference (Vref) and determines the voltage level of the signal. This signal is converted into a digital word which is passed to the D/A converters. The D/A converters receive this digital word and convert it into an analog signal which can be used to set the voltage level of the digital potentiometer. The output of the Digital-To-Analog converters is then fed back to the A/D converter which controls the digital potentiometer setting. The Digital-To-Analog converters use an 8-bit word length, allowing thedigital potentiometer to be set to a resolution of 1mV. The total output range of the digital potentiometer can be determined by the Voltage Reference input of the A/D converter. This Output range can be adjusted between 0-Vref, allowing the user to determine the overall output range of the potentiometer. The AD5231BRUZ100 further provides an adjustable power down feature that allows the device to be powered down without introducing distortion or noise. The device also includes an adjustable temperature compensation feature that allows the device to maintain precise digital values over a wide temperature range. Conclusion The AD5231BRUZ100 is a precision digital potentiometer developed by Analog Devices. This device is suitable for a wide variety of applications, such as instrumentation, audio/video signal processing, and telecommunications. The device consists of a 12-bit A/D converter and two independent 8-Channel Digital-To-Analog converters that provide a resolution of 1 mV and an output range of 0-Vref. In addition, the device includes several other features, such as an adjustable power down feature and a temperature compensation feature, which allows the device to maintain accuracy over a wide temperature range.

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