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Functionality: The AD5290YRMZ100 is a digital potentiometer that allows electronic adjustment of resistance values. It offers precise control, which can be especially beneficial in applications where manual tuning is not feasible or desired.
Applications: Digital potentiometers like AD5290YRMZ100 have diverse applications, encompassing fields such as precision calibration, programmable logic controllers, audio equipment for volume and balance control, and tunable filters.
Characteristic Features:
1. High Resolution: The AD5290YRMZ100 boasts a 1024-step resolution, which provides fine-tuned control.
2. Integrated Non-Volatile Memory: The EEPROM embedded within the chip allows it to remember the last set resistance value, even after a power cycle.
3. Wide Operating Range: This digipot operates efficiently within a +2.7V to +5.5V range.
4. Minimal Gain Error: Its gain error is less than ±1 LSB, which signifies its high accuracy.
5. Robust Power-off Protection: The chip is designed to safeguard against unforeseen power interruptions.
Application Example - Tunable Filters: For this scenario, consider employing the AD5290YRMZ100 in designing a tunable filter where the cut-off frequency can be adjusted.
Circuit Connection:
1. Powering Up: Connect the VDD pin of AD5290YRMZ100 to a +5V source, and tie the GND pin to the system's ground.
2. Filter Design: The Wiper (W) pin is connected to one end of the capacitor, which, in turn, is connected to the op-amp's inverting input. Terminal A (A) will be connected to the output of the op-amp, while Terminal B (B) goes to ground. By adjusting the resistance of the AD5290YRMZ100, the cut-off frequency of the filter can be altered.
3. SPI Communication: Ensure proper communication by connecting the MOSI pin for data input, the SCLK pin to the clock source, and the CS pin as chip select to control the AD5290YRMZ100.
4. Feedback Mechanism: The RDY pin can be interfaced with a microcontroller to provide a signal once the AD5290YRMZ100 is ready for the next command.
Design Considerations:
1. Noise Management: To curb potential power supply noise, incorporate a 0.1μF decoupling capacitor between the VDD and GND pins.
2. Protection Circuitry: Given the sensitive nature of digipots, consider integrating protection circuits to prevent potential damages from electrostatic discharges.
3. Filter Design Precision: For tunable filters, it's imperative to select capacitors with minimal tolerance to ensure consistent performance.
4. Digital Interface: Ensure the interfacing microcontroller or processor's SPI speed is compatible with the AD5290YRMZ100.
In essence, the AD5290YRMZ100 offers an impeccable balance of performance, precision, and flexibility, making it an indispensable component in numerous electronic designs. Proper considerations and design practices can further accentuate its capabilities.
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The price and inventory of AD5290YRMZ100 fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
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All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the AD5290YRMZ100 we delivered, we will accept the replacement or return of the AD5290YRMZ100 only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of AD5290YRMZ100.
(3)The PartNo is unused and only in the original unpacked packaging.
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(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
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