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Name: AD5290YRMZ100-R7
Brand: Analog Devices Inc.
SKU: AD5290YRMZ100-R7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Analog Devices Inc. AD5290YRMZ100-R7

Part No.:: AD5290YRMZ100-R7

Manufacturer:: Analog Devices Inc.

Package:: 10-TFSOP, 10-MSOP (0.118, 3.00mm Width)

Datasheet:: AD5290YRMZ100-R7.pdf

Description:: IC DGT POT 100KOHM 256TAP 10MSOP

In Stock:: 2372

Quantity:: Add To Cart

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AD5290YRMZ100-R7 Typical application Circuitry

The AD5290YRMZ100-R7 is an intriguing piece of semiconductor technology that provides distinct functionalities. Here, we will break down its functionalities, typical use-cases, and detailed application scenarios.

Function of AD5290YRMZ100-R7

The AD5290YRMZ100-R7 is a single-channel, 1024-position, digitally controlled potentiometer (often termed as a digipot). This means it can emulate the analog function of a mechanical potentiometer or variable resistor, controlled via digital inputs.

Application Scenarios for AD5290YRMZ100-R7

With its robust capabilities, the AD5290YRMZ100-R7 can be utilized in numerous applications:

1. Mechanical potentiometer replacement

2. Gain and offset adjustment

3. Programmable voltage-to-current conversion

4. Feedback resistor in op-amp circuits

5. Automated product calibration

Parameter Features of AD5290YRMZ100-R7

- Resolution: 10-bit (1024 positions)

- End-to-end resistance options: 100 kΩ

- Interface: SPI-compatible serial interface

- Supply voltage range: ±2.25 V to ±2.75 V dual supply or +2.7 V to +5.5 V single supply

- Integrated zero-scale to full-scale wiper resistance

- Low temperature coefficient

Application Circuit Connection: Gain Adjustment in an Op-Amp Circuit

Using AD5290YRMZ100-R7 in an operational amplifier (op-amp) circuit for gain adjustment:

1. Supply Voltage: Connect a suitable supply voltage (e.g., +5V for single supply operation) to the VDD pin and connect the VSS pin to ground.

2. Digital Control: Interface an SPI-compatible microcontroller or FPGA to the SDI (Serial Data Input), SDO (Serial Data Output), SCLK (Serial Clock), and CS (Chip Select) pins of the AD5290YRMZ100-R7.

3. Potentiometer Terminals: The A, W, and B pins of AD5290YRMZ100-R7 represent the two ends and the wiper of the potentiometer, respectively. For an op-amp gain control application, connect the A pin to the op-amp's output, the W pin to the op-amp's inverting input, and the B pin to the ground. This configuration will allow you to digitally adjust the feedback resistance and, subsequently, the gain of the op-amp.

4. Ground Connection: The GND pin of the AD5290YRMZ100-R7 should be connected to the system's common ground.

Considerations When Designing the Circuit:

1. Decoupling: It's imperative to place decoupling capacitors close to the VDD and VSS pins to ensure smooth operation and minimize noise.

2. Digital Noise: As with all mixed-signal applications, care should be taken to minimize digital noise interference with the analog portion of the circuit. This often entails proper grounding techniques and sometimes, physical separation on the PCB.

3. Wiper Considerations: It's crucial to understand that the wiper resistance is not zero. Depending on the position, this resistance can introduce errors, especially in precision applications.

4. Endurance: Digital potentiometers have a finite number of wiper movement cycles. For applications that require frequent adjustments, this lifespan consideration is paramount.

In essence, the AD5290YRMZ100-R7 provides a digital solution to a traditionally mechanical problem, offering precise control, repeatability, and robustness for a plethora of applications. Proper integration and consideration of its features ensure its optimal performance in any design scenario.

AD5290YRMZ100-R7 information

AD5290YRMZ100-R7 Specifications

Package/Case:
10-TFSOP, 10-MSOP (0.118, 3.00mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
Taper:
Linear
Configuration:
Potentiometer
NumberofCircuits:
1
NumberofTaps:
256
Resistance(Ohms):
100k
Interface:
SPI
MemoryType:
Volatile
Voltage-Supply:
4.5V ~ 33V, ±4.5V ~ 16.5V
Features:
Cascade Pin
Tolerance:
±30%
TemperatureCoefficient(Typ):
35ppm/°C
MountingType:
Surface Mount
OperatingTemperature:
-40°C ~ 125°C

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6. What is the process for return or replacement of AD5290YRMZ100-R7?

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(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-R7.

(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