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Name: OP484FS
Brand: Analog Devices Inc.
SKU: OP484FS
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Analog Devices Inc. OP484FS

Part No.:: OP484FS

Manufacturer:: Analog Devices Inc.

Package:: 14-SOIC (0.154, 3.90mm Width)

Datasheet:

Description:: IC OPAMP GP 4 CIRCUIT 14SOIC

In Stock:: 361847

Quantity:: Add To Cart

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OP484FS Specifications

Package/Case:
14-SOIC (0.154, 3.90mm Width)
Packaging:
Tube,Tube
Series:
-
ProductStatus:
Obsolete
AmplifierType:
General Purpose
NumberofCircuits:
4
OutputType:
Rail-to-Rail
SlewRate:
4V/µs
GainBandwidthProduct:
4.25 MHz
-3dbBandwidth:
-
Current-InputBias:
80 nA
Voltage-InputOffset:
250 µV
Current-Supply:
-
Current-Output/Channel:
10 mA
Voltage-SupplySpan(Min):
3 V
Voltage-SupplySpan(Max):
36 V
OperatingTemperature:
-40°C ~ 125°C
MountingType:
Surface Mount

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OP484FS information

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OP484FS Typical application Circuitry

OP484FS

The OP484FS is a high-performance operational amplifier (op-amp) characterized by its precision, low noise, and high speed, making it suitable for a wide range of applications including filters, integrators, photodiode amplification, and analog-to-digital converter circuits. This versatile op-amp is designed to operate with a single or dual supply voltage, enhancing its adaptability in various electrical environments.

Key Features and Specifications:

- Low Offset Voltage: The OP484FS exhibits a low offset voltage, which is crucial for applications requiring high precision and accuracy.

- High Slew Rate: This op-amp's high slew rate allows it to tolerate abrupt changes in input signals, which makes it perfect for applications requiring quick signal processing.

- Broad Bandwidth: Processing signals across a wide frequency range is made possible by the wide bandwidth.

- Low Noise: Applications where signal integrity is critical, such audio amplification or delicate measuring tools, require its low noise feature.

- Rail-to-Rail Output: This feature maximizes the dynamic range of battery-operated devices by allowing the op-amp to drive signals to the power supply rails.

Application Scenario: Photodiode Amplification Circuit

One common application of the OP484FS is in photodiode amplification circuits, where it is used to convert light intensity into a measurable voltage, often found in light sensing applications, medical devices, and optical communication systems.

Circuit Design and Pin Configuration:

- Biasing the Photodiode: The photodiode is reverse-biased to improve its responsiveness. To accomplish this, connect the photodiode's cathode to a positive supply voltage and its anode to the OP484FS's inverting input (Pin 2).

- Feedback Resistor (Rf): A feedback resistor (Rf) is connected between the output (Pin 6) and the inverting input (Pin 2) to set the gain of the amplifier. The value of Rf determines the amplification factor, with higher values resulting in greater amplification of the photodiode current.

- Compensation Capacitor (Cf): A compensation capacitor (Cf) might be added in parallel with Rf to improve the stability of the circuit and reduce high-frequency noise.

- Non-inverting Input: The non-inverting input (Pin 3) is connected to a reference voltage (Vref) to set the baseline output voltage. This allows for control over the output voltage range and can improve the linearity of the response.

- Power Supply: The OP484FS operates with a single or dual power supply. For a single supply operation, the positive supply voltage (V+) is connected to Pin 7, and the ground (V-) is connected to Pin 4. In dual supply applications, a positive voltage is applied to Pin 7 and a negative voltage to Pin 4, enhancing the signal handling capability.

Design Considerations:

- Selecting Rf and Cf: The choice of Rf and Cf is critical for achieving the desired gain while maintaining stability. Their values must be carefully selected to balance amplification needs and bandwidth requirements.

- Power Supply Noise: Minimizing noise from the power supply is crucial, especially in sensitive applications. Noise can be reduced by using decoupling capacitors near the power supply pins of the op-amp.

- Photodiode Selection: The choice of photodiode should match the application's spectral sensitivity needs and the op-amp's bandwidth to ensure optimal performance.

- Temperature Effects: The OP484FS's parameters, such as offset voltage and bias current, can vary with temperature. It's important to consider these variations in applications that require high precision over a wide temperature range.

By understanding the key features, application scenarios, and design considerations of the OP484FS, engineers can effectively utilize this op-amp in their circuit designs, ensuring optimal performance and reliability.

OP484FS FAQ

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3. Are the OP484FS price and inventory displayed accurate?

The price and inventory of OP484FS 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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6. What is the process for return or replacement of OP484FS?

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 OP484FS we delivered, we will accept the replacement or return of the OP484FS 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 OP484FS.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations