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Name: OPA637AU
Brand: Texas Instruments
SKU: OPA637AU
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 OPA637AU

Part No.:: OPA637AU

Manufacturer:: Texas Instruments

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

Datasheet:: OPA637AU.pdf

Description:: IC OPAMP GP 1 CIRCUIT 8SOIC

In Stock:: 154

Quantity:: Add To Cart

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OPA637AU Specifications

Package/Case:
8-SOIC (0.154, 3.90mm Width)
Packaging:
Tube
Series:
Difet®
ProductStatus:
Active
AmplifierType:
General Purpose
NumberofCircuits:
1
OutputType:
-
SlewRate:
135V/µs
GainBandwidthProduct:
80 MHz
-3dbBandwidth:
-
Current-InputBias:
2 pA
Voltage-InputOffset:
130 µV
Current-Supply:
7mA
Current-Output/Channel:
45 mA
Voltage-SupplySpan(Min):
9 V
Voltage-SupplySpan(Max):
36 V
OperatingTemperature:
-25°C ~ 85°C
MountingType:
Surface Mount

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OPA637AU information

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OPA637AU Typical application Circuitry

OPA637AU

The OPA637AU is a high-performance operational amplifier (op-amp) known for its exceptional speed, wide bandwidth, and stability in high-frequency applications. It's designed for applications requiring high precision and fast settling times, such as professional audio equipment, test and measurement instruments, active filters, and high-speed data acquisition systems.

Key Features and Specifications

- High-Speed Performance: The OPA637AU offers a fast slew rate and wide bandwidth, making it suitable for applications that demand quick response times and high-frequency signal processing.

- High Precision: Assures precise signal amplification and fidelity by offering low distortion and offset voltage.

- Broad Supply Voltage Range: Able to function across a wide range of supply voltages, this feature expands the application's adaptability to various circuit settings.

- Stable with Capacitive Loads: This device is designed to maintain stability even when driving capacitive loads, making it ideal for complex signal processing applications.

- Uncompromised Quality: Ideal for use in high-end audio and precision instrumentation due to its exceptional signal integrity and performance.

Application Scenario: High-Precision Active Filter

A practical application of the OPA637AU is in designing a high-precision active filter, such as a low-pass filter for a high-speed data acquisition system, where it can condition signals to remove unwanted high-frequency noise.

Circuit Connection Detail

- Signal Input Connection: Connect the input signal to the non-inverting input (Pin 3) of the OPA637AU. This configuration ensures high-impedance input coupling, minimizing signal distortion.

- Feedback Network for Filter Design: Implement a feedback network between the output (Pin 6) and the inverting input (Pin 2) using resistors (R1, R2) and capacitors (C1, C2) to achieve the desired filter characteristics (e.g., cutoff frequency, filter order). Precise component selection is critical for accurate filter performance.

- Power Supply Connections: Connect the V+ (Pin 7) and V- (Pin 4) pins to a positive and negative supply voltage, respectively. Different operational needs can be accommodated by the wide supply voltage range of the OPA637AU.

- Output to ADC: For digitalization, route the filtered signal from Pin 6's output to an analog-to-digital converter (ADC). Accurate data representation during this shift depends on maintaining signal integrity.

- Decoupling Capacitors for Power Supply Stability: Position bypass capacitors in close proximity to the power supply pins to reduce noise and stabilize the op-amp's functioning. Clean and stable power is paramount for maintaining the OPA637AU's performance.

Design Considerations

When designing a high-precision active filter with the OPA637AU, several crucial aspects must be carefully considered:

- Power Supply Quality: A clean and stable power supply is essential to avoid introducing noise into the signal path. Implementing effective decoupling and using low-noise power sources are key.

- Thermal Management: Despite the OPA637AU being designed for efficiency, managing heat in applications with continuous high-speed operation is important to ensure reliability.

- Protection Mechanisms: Incorporating protection for overvoltage, electrostatic discharge (ESD), and reverse polarity can protect the op-amp and connected components from potential damage.

- PCB Layout Considerations: Minimizing trace lengths, optimizing the layout for low parasitic capacitance, and implementing proper grounding are necessary to preserve signal integrity and op-amp stability.

Utilizing the OPA637AU in a high-precision active filter application leverages its high-speed, low-distortion characteristics, and stability with capacitive loads, making it ideal for accurately conditioning signals in high-speed data acquisition systems. Attention to power supply quality, thermal management, protective measures, and careful PCB design ensures the successful implementation and reliability of the filtering system.

OPA637AU FAQ

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3. Are the OPA637AU price and inventory displayed accurate?

The price and inventory of OPA637AU 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 OPA637AU?

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 OPA637AU we delivered, we will accept the replacement or return of the OPA637AU 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 OPA637AU.

(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