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Name: OPA445AU/2K5
Brand: Texas Instruments
SKU: OPA445AU/2K5
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 OPA445AU/2K5

Part No.:: OPA445AU/2K5

Manufacturer:: Texas Instruments

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

Datasheet:: OPA445AU/2K5.pdf

Description:: IC OPAMP GP 1 CIRCUIT 8SOIC

In Stock:: 3738

Quantity:: Add To Cart

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OPA445AU/2K5 Specifications

Package/Case:
8-SOIC (0.154, 3.90mm Width)
Packaging:
Tape & Reel (TR)
Series:
-
ProductStatus:
Active
AmplifierType:
General Purpose
NumberofCircuits:
1
OutputType:
-
SlewRate:
15V/µs
GainBandwidthProduct:
2 MHz
-3dbBandwidth:
-
Current-InputBias:
10 pA
Voltage-InputOffset:
1.5 mV
Current-Supply:
4.2mA
Current-Output/Channel:
15 mA
Voltage-SupplySpan(Min):
20 V
Voltage-SupplySpan(Max):
90 V
OperatingTemperature:
-25°C ~ 85°C
MountingType:
Surface Mount

OPA445AU/2K5 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including OPA445AU/2K5 price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for OPA445AU/2K5 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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OPA445AU/2K5 information

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OPA445AU/2K5 Typical application Circuitry

OPA445AU 2K5

The OPA445AU/2K5 is a high-voltage operational amplifier (op-amp) designed to handle supply voltages up to ±45V, making it highly suitable for applications that require both precision and the ability to operate at high voltages. This op-amp is widely used in test equipment, piezoelectric transducer drivers, high-voltage signal conditioning, and other applications where a wide dynamic range is essential.

Key Features and Specifications

- High-Voltage Operation: The OPA445AU/2K5 can operate with supply voltages up to ±45V, enabling it to drive high-voltage loads or amplify signals to high voltages.

- Precision Performance: Offers low offset voltage and drift, ensuring high accuracy in applications requiring precision signal amplification.

- Wide Output Swing: Capable of delivering outputs close to the supply rails, maximizing the dynamic range available in high-voltage applications.

- Stable with Capacitive Loads: Designed to be stable even when driving capacitive loads, which is critical for applications such as driving piezoelectric devices.

Application Scenario: High-Voltage DAC Output Amplifier

A common application for the OPA445AU/2K5 is amplifying the output of a digital-to-analog converter (DAC) to a high voltage. This setup is often used in test and measurement equipment where a precise, variable high-voltage output is required.

Circuit Connection Detail

- DAC Output to Op-Amp Input: Connect the output of the DAC to the non-inverting input (Pin 3) of the OPA445AU/2K5. This ensures the DAC signal is accurately amplified.

- Feedback Network for Gain Adjustment: Place a resistor (R1) between the output (Pin 6) and the inverting input (Pin 2) to set up a feedback loop. Another resistor (R2) from the inverting input (Pin 2) to ground sets the gain of the amplifier. The gain can be calculated using the formula *Gain = 1 + (R1/R2)*, allowing precise control over the output voltage range.

- Power Supply Connections: Apply a positive voltage (up to +45V) to the V+ pin (Pin 7) and a negative voltage (up to -45V) to the V- pin (Pin 4). This high supply voltage is what enables the OPA445AU/2K5 to amplify the DAC output to high voltages.

- Output to Load: The high-voltage output from Pin 6 can then be used to drive high-voltage loads or for further processing. Ensure that the load does not exceed the current capabilities of the OPA445AU/2K5 to prevent damage.

- Bypass Capacitors for Stability: It's essential to use bypass capacitors close to the power supply pins to filter out noise and provide a stable operation for the OPA445AU/2K5. This helps maintain signal integrity, especially in high-voltage applications.

Design Considerations

When designing a circuit with the OPA445AU/2K5 for amplifying DAC outputs to high voltages, several key factors need to be addressed:

- Power Supply Quality: High-voltage applications are sensitive to power supply noise and fluctuations. Using high-quality power supplies and implementing proper filtering can mitigate these issues.

- Thermal Management: The OPA445AU/2K5 can dissipate significant heat, especially at high voltages. Adequate cooling or heat sinking is necessary to prevent overheating.

- Protection Mechanisms: Including protection mechanisms for overvoltage, short-circuit, and thermal overload can enhance circuit safety and longevity.

- Load Characteristics: Understanding the load's characteristics is crucial, especially if the load is capacitive. The OPA445AU/2K5 is stable with capacitive loads, but the total capacitance should be considered in the design to avoid instability.

- PCB Layout: Careful layout to minimize noise pickup and ensure good thermal management is critical. High-voltage paths should be kept separate from low-voltage control circuits to prevent interference.

Utilizing the OPA445AU/2K5 to amplify DAC outputs to high voltages leverages its high-voltage capability, precision, and stability with capacitive loads, making it ideal for a wide range of applications requiring high-voltage signals. Proper attention to design details such as power supply integrity, thermal management, protection circuits, and careful PCB layout ensures optimal performance and reliability of the OPA445AU/2K5 in high-voltage DAC output amplification applications.

OPA445AU/2K5 FAQ

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6. What is the process for return or replacement of OPA445AU/2K5?

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 OPA445AU/2K5 we delivered, we will accept the replacement or return of the OPA445AU/2K5 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 OPA445AU/2K5.

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

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(1)Inform us within 90 days

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