Name: AD8400AR1
Brand: Analog Devices Inc.
SKU: AD8400AR1-ND
Availability: InStock

Allicdata Part #:	AD8400AR1-ND
Manufacturer Part#:	AD8400AR1
Price:	$ 0.00
Product Category:	Integrated Circuits (ICs)
Manufacturer:	Analog Devices Inc.
Short Description:	IC DGTL POT 8BIT 1K 1CH 8-SOIC
More Detail:	Digital Potentiometer 1k Ohm 1 Circuit 256 Taps SP...
DataSheet:	AD8400AR1 Datasheet/PDF
Quantity:	1000

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Specifications

Memory Type:	Volatile
Base Part Number:	AD8400
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 125°C
Resistance - Wiper (Ohms) (Typ):	200
Temperature Coefficient (Typ):	700 ppm/°C
Tolerance:	±33%
Features:	--
Voltage - Supply:	2.7 V ~ 5.5 V
Series:	--
Interface:	SPI
Resistance (Ohms):	1k
Number of Taps:	256
Number of Circuits:	1
Configuration:	Potentiometer
Taper:	Linear
Part Status:	Obsolete
Packaging:	Tube

Description

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AD8400AR1 Application Field and Working PrincipleThe AD8400AR1 is an integrated circuit used for the data acquisition of digital potentiometers. It is comprised of a single chip with a 4th order variable multi-turn digital potentiometer. It not only simplifies mechanical design while extending its range of movement, but also negates the need for calibrating certain values. This is due to its ability to remember the commands set in it and perform automatic tracking of this setpoint.The purpose of the ADC8400AR1 chip is to provide a programmable digital potentiometer with a much higher resolution than normally found in mechanical potentiometers. This makes it ideal for applications that require precise settings to be set and maintained, such as those found in applications involving audio, video, and display systems. The digital potentiometer on the chip offers the convenience of a single device which can be adjusted remotely, making it particularly useful for applications that require non-contact adjustment of settings. The ADC8400AR1 chip incorporates a 4th order, variable multi-turn digital potentiometer, with a range of 0 to 10V. When connected to a signal or ground, the chip can sense and interpret the signal, and then convert it into a digital code for use in the application. This process is done through the use of a potentiometer and a coding scale, which are connected to the chip. The potentiometer allows the user to adjust the sensitivity of the signal from the source, while the coding scale allows the chip to interpret the signal more accurately.The internal circuitry of the ADC8400AR1 chip utilizes a pulse-width modulation (PWM) controller to convert the digital signal into analog form. This is done by producing analog waveforms which correspond to the digital signal. The digital signals are then converted into a 4-bit binary code which is used to control the effective resistance of the potentiometer, enabling precise changes in the resistance of the output. The effective resistance of the circuit is further increased by the presence of a high-impedance driver circuit which helps increase the accuracy of the potentiometer by allowing higher levels of accuracy to be achieved.The chip also features an integrated reference voltage generator which allows for precise tracking of the setpoint. Additionally, the chip also contains an 8-bit resolution analog/digital converter which makes it possible for readings from the chip to be monitored in software. Overall, the ADC8400AR1 integrated circuit is an extremely useful tool for the data acquisition of digital potentiometers. Its 4th order variable multi-turn digital potentiometer capability, along with its built-in reference voltage generator and 8-bit resolution analog/digital converter make it an ideal solution for applications that require precise adjustments to settings. In addition, the chip\'s ability to remember the commands set in it and maintain automatic tracking, allows for quick adjustment of settings and reduction of calibration times, while its internal circuitry is capable of producing accurate readings.

The specific data is subject to PDF, and the above content is for reference

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AD8400AR1-ND

AD8400AR1

Integrated Circuits (ICs)