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Name: OP249AZ
Brand: Analog Devices Inc.
SKU: OP249AZ
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. OP249AZ

Part No.:: OP249AZ

Manufacturer:: Analog Devices Inc.

Package:: 8-CDIP (0.300, 7.62mm)

Datasheet:: OP249AZ.pdf

Description:: IC OPAMP JFET 2 CIRCUIT 8CERDIP

In Stock:: 2325

Quantity:: Add To Cart

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OP249AZ Specifications

Package/Case:
8-CDIP (0.300, 7.62mm)
Packaging:
Tube
Series:
-
ProductStatus:
Active
AmplifierType:
J-FET
NumberofCircuits:
2
OutputType:
-
SlewRate:
22V/µs
GainBandwidthProduct:
4.7 MHz
-3dbBandwidth:
-
Current-InputBias:
30 pA
Voltage-InputOffset:
200 µV
Current-Supply:
5.6mA
Current-Output/Channel:
36 mA
Voltage-SupplySpan(Min):
9 V
Voltage-SupplySpan(Max):
36 V
OperatingTemperature:
-55°C ~ 125°C
MountingType:
Through Hole

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OP249AZ information

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OP249AZ Typical application Circuitry

OP249AZ

The OP249AZ is a high-speed, precision dual operational amplifier known for its high slew rate, wide bandwidth, and ability to drive capacitive loads effectively. This operational amplifier is designed to offer both high performance and reliability in a variety of applications, including but not limited to, high-speed data acquisition, active filters, and driving analog-to-digital converters (ADCs).

Application Scenarios

The OP249AZ is particularly suited for:

- Active Filtering: Implementing precise and high-speed filters for signal processing.

- Data Acquisition Systems: Amplifying and conditioning signals before ADC conversion.

- Driving ADCs: Providing the necessary dynamic range and speed for ADC input stages.

- Audio Processing: Handling audio signals with high fidelity and minimal distortion.

Parameters and Features

- High Slew Rate: Ensures rapid response to input signal changes.

- Wide Bandwidth: Facilitates accurate signal processing over a broad frequency range.

- Capacitive Load Driving Capability: Can drive capacitive loads directly without oscillation or instability.

- Dual Operational Amplifier: Contains two op-amps in one package for compact and efficient design solutions.

Detailed Circuit Connection for Active Filtering

Using the OP249AZ to create an active second-order low-pass filter for audio signal processing illustrates its capabilities effectively. Here's how to design such a circuit:

1. Power Supply Connections: Connect the positive power supply (e.g., +15V) to pin 8 (V+) and the negative power supply (e.g., -15V) to pin 4 (V-). Decoupling Capacitors (0.1 µF ceramic close to the pins and 10 µF electrolytic nearby) are crucial to minimize power supply noise.

2. Input Signal Conditioning: Feed the audio signal into the non-inverting input (pin 3) of the first OP249AZ op-amp through a Series Resistor (e.g., 1kΩ) for input protection and impedance matching.

3. Feedback Loop for Gain and Filtering: Create a feedback network from the output (pin 1) back to the inverting input (pin 2) using a Feedback Resistor (e.g., 10kΩ) and a Parallel Capacitor (e.g., 22pF) to set the filter's cutoff frequency and gain. Add a Grounded Capacitor (e.g., 10nF) between pin 2 and ground to define the low-pass filter characteristics further.

4. Second Stage Filtering: Utilize the second op-amp within the OP249AZ (pins 5, 6, and 7) to implement a second filtering stage for sharper cutoff and improved signal quality. Mirror the configuration of the first stage, adjusting component values as needed to achieve the desired overall filter response.

5. Output Stage and Capacitive Load Handling: The filtered audio output is available at pin 7. Given the OP249AZ's capacitive load driving capability, you can directly connect this output to moderately capacitive loads, such as long cables or an ADC input, without additional buffering. However, including a Small Series Resistor (e.g., 47Ω) at the output can help ensure stability with highly capacitive loads.

Design Considerations

When designing circuits with the OP249AZ, several key aspects must be considered:

- Power Supply Quality: High-performance op-amps like the OP249AZ require clean and stable power supplies for optimal performance. Thorough decoupling and noise filtering are essential.

- Thermal Management: The OP249AZ can dissipate more power than low-speed op-amps, especially when driving heavy loads. Ensure adequate heat sinking or air flow to maintain operational temperature within specifications.

- PCB Layout: Minimize trace lengths and use ground planes to reduce parasitic effects and improve signal integrity. Careful layout is particularly important in high-speed circuits to prevent oscillations.

- Signal Integrity: High-speed applications demand careful consideration of routing, shielding, and grounding to minimize noise and distortion. Shielding input and output lines may be necessary in noisy environments.

- Component Selection: Choose passive components with suitable frequency characteristics and tolerances to maintain the filter's performance across the intended frequency range.

Designing with the OP249AZ in an active filtering application leverages its high slew rate and wide bandwidth, ensuring that audio signals are processed with high fidelity, minimal distortion, and excellent dynamic range.

OP249AZ FAQ

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3. Are the OP249AZ price and inventory displayed accurate?

The price and inventory of OP249AZ 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 OP249AZ?

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 OP249AZ we delivered, we will accept the replacement or return of the OP249AZ 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 OP249AZ.

(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