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Name: OPA2228UG4
Brand: Texas Instruments
SKU: OPA2228UG4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Texas Instruments OPA2228UG4

Part No.:: OPA2228UG4

Manufacturer:: Texas Instruments

Package:: 8-SOIC (0.154, 3.90mm Width)

Datasheet:: OPA2228UG4.pdf

Description:: IC OPAMP GP 2 CIRCUIT 8SOIC

In Stock:: 3291

Quantity:: Add To Cart

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OPA2228UG4 Specifications

Package/Case:
8-SOIC (0.154, 3.90mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Discontinued at Mosen
AmplifierType:
General Purpose
NumberofCircuits:
2
OutputType:
-
SlewRate:
11V/µs
GainBandwidthProduct:
33 MHz
-3dbBandwidth:
-
Current-InputBias:
2.5 nA
Voltage-InputOffset:
5 µV
Current-Supply:
3.7mA (x2 Channels)
Current-Output/Channel:
45 mA
Voltage-SupplySpan(Min):
5 V
Voltage-SupplySpan(Max):
36 V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

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OPA2228UG4 information

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OPA2228UG4 Typical application Circuitry

OPA2228UG4

The OPA2228UG4 is a dual precision operational amplifier (op-amp) that stands out for its low noise, high precision, and excellent stability across a wide range of temperatures. This op-amp is particularly suited for applications requiring accurate signal amplification, such as in test equipment, precision instrumentation, and active filtering systems.

Key Features and Specifications

- Precision Performance: The OPA2228UG4 is optimized for applications that demand high accuracy, featuring low offset voltage and low drift over temperature.

- Low Noise: Its low noise characteristics are essential for applications in audio processing and sensor signal amplification, where maintaining signal integrity is crucial.

- Wide Supply Range: The device operates over a broad supply voltage range, accommodating various application needs.

- Dual-Channel Configuration: Offering two op-amps in a single package, the OPA2228UG4 facilitates compact and efficient circuit designs.

Application Scenario: Differential Amplifier Circuit

A practical application of the OPA2228UG4 is in a differential amplifier circuit, which is widely used in signal conditioning, data acquisition systems, and for removing noise from a signal.

Circuit Connection Detail

- Signal Inputs: Connect the positive input signal to the non-inverting input (Pin 3) of the first amplifier and the negative input signal to the inverting input (Pin 5) of the second amplifier. This setup allows the OPA2228UG4 to amplify the difference between the two signals.

- Feedback Network for Gain Setting: Place resistors R1 and R2 in the feedback loop of each amplifier (between Pin 1 and Pin 3 for the first amplifier, and between Pin 7 and Pin 5 for the second amplifier) to set the gain. The ratio of R1 to R2 determines the gain.

- Power Supply Connections: Apply the positive power supply to the V+ pin (Pin 8) and the negative power supply to the V- pin (Pin 4). The OPA2228UG4's adaptable supply voltage enables it to be employed in a range of operational environments.

- Output Connection: The output of the differential amplifier is taken from the output of the first amplifier (Pin 1) relative to the output of the second amplifier (Pin 7), effectively amplifying the difference between the two input signals.

- Decoupling Capacitors: It's advisable to place decoupling capacitors close to the power supply pins (Pins 4 and 8) to filter out noise and provide a stable power supply to the OPA2228UG4.

Design Considerations

When designing a differential amplifier circuit with the OPA2228UG4, several key factors need to be taken into account:

- Input Impedance Matching: To ensure accurate differential signal processing, it's crucial to match the input impedances of both amplifier inputs. By carefully choosing the resistor values in the signal channels, this can be accomplished.

- Thermal Coupling: Given that the OPA2228UG4 contains two op-amps in one package, thermal coupling between the channels can occur. The effects of heat on circuit performance should be taken into account by designers, particularly in high-precision applications.

- Power Supply Noise: The quality of the power supply directly affects the performance of precision op-amps. Implementing good power supply filtering and using decoupling capacitors can minimize noise and voltage fluctuations.

- PCB Layout Considerations: To maximize the performance of the OPA2228UG4, careful attention should be given to PCB layout, including minimizing the length of signal paths and separating analog and digital grounds, if applicable.

By leveraging the OPA2228UG4 in a differential amplifier configuration, designers can take advantage of its precision, low noise, and dual-channel integration to create efficient, high-performance circuits suitable for a wide range of applications. Proper consideration of the above design aspects ensures that the OPA2228UG4 operates at its full potential, providing accurate and stable signal amplification.

OPA2228UG4 FAQ

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6. What is the process for return or replacement of OPA2228UG4?

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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 OPA2228UG4.

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

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