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Name: OPA228UG4
Brand: Texas Instruments
SKU: OPA228UG4
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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Texas Instruments OPA228UG4

Part No.:: OPA228UG4

Manufacturer:: Texas Instruments

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

Datasheet:: OPA228UG4.pdf

Description:: IC OPAMP GP 1 CIRCUIT 8SOIC

In Stock:: 3114

Quantity:: Add To Cart

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OPA228UG4 Specifications

Package/Case:
8-SOIC (0.154, 3.90mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Discontinued at Mosen
AmplifierType:
General Purpose
NumberofCircuits:
1
OutputType:
-
SlewRate:
11V/µs
GainBandwidthProduct:
33 MHz
-3dbBandwidth:
-
Current-InputBias:
2.5 nA
Voltage-InputOffset:
5 µV
Current-Supply:
3.7mA
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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OPA228UG4 information

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OPA228UG4 Typical application Circuitry

OPA228UG4

The OPA228UG4 is a high-precision operational amplifier, acclaimed for its excellent balance of speed, noise, and precision. It's particularly effective in applications that demand accuracy and quick response, such as test and measurement equipment, medical devices, and professional audio systems.

Key Features of OPA228UG4:

- Precision: The OPA228UG4 offers outstanding accuracy and minimal drift over time and temperature.

- Low Noise: This feature is crucial in applications involving small signal amplification, where noise can significantly affect performance.

- High-Speed: Suitable for scenarios where fast signal processing is required.

Application Scenario - Medical Device Signal Amplification:

For this scenario, let's focus on using the OPA228UG4 in a heart rate monitor circuit, a common application in medical devices.

Circuit Connection Details:

1. Powering the Device: Connect Pin 8 (V+) and Pin 4 (V-) of the OPA228UG4 to your power supply. Generally, a range of ±5V to ±15V is employed, contingent upon the particular needs of your system.

2. Input Connection: Attach the heart rate sensor's output to Pin 3 (non-inverting input) of the OPA228UG4. This ensures that the small signals from the sensor are accurately amplified.

3. Feedback Network: Install a feedback resistor (R1) between Pin 6 (output) and Pin 2 (inverting input) to set the desired gain. Include a capacitor (C1) in parallel with R1 to filter high-frequency noise.

4. Output Configuration: Extract the processed signal from Pin 6. This signal can then be directed to further processing stages, like analog-to-digital conversion for digital displays.

5. Grounding: Ensure Pin 5 is properly grounded to minimize noise and interference.

Design Considerations with OPA228UG4:

- Stability and Noise Reduction: Given the sensitive nature of medical signals, ensure the power supply is stable and incorporate filtering to minimize noise.

- Thermal Management: Pay attention to thermal effects on the OPA228UG4, as temperature variations can impact precision.

- Impedance Balancing: Proper input and output impedance matching are crucial to maintain signal integrity and minimize distortion.

- PCB Layout: A thoughtful PCB layout is vital. It should aim to minimize noise pickup and parasitic effects, which are critical in high-precision applications like those involving the OPA228UG4.

In conclusion, the OPA228UG4 operational amplifier is highly suited for precision applications where noise, speed, and accuracy are critical. Its robust feature set makes it ideal for delicate applications like medical device signal processing. When designing circuits with the OPA228UG4, careful consideration of power supply integrity, thermal factors, impedance matching, and PCB layout are imperative to fully leverage the op-amp's capabilities.

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3. Are the OPA228UG4 price and inventory displayed accurate?

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6. What is the process for return or replacement of OPA228UG4?

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 OPA228UG4 we delivered, we will accept the replacement or return of the OPA228UG4 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 OPA228UG4.

(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