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Name: OP27AJGB
Brand: Texas Instruments
SKU: OP27AJGB
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 OP27AJGB

Part No.:: OP27AJGB

Manufacturer:: Texas Instruments

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

Datasheet:: OP27AJGB.pdf

Description:: IC OPAMP GP 1 CIRCUIT 8CDIP

In Stock:: 3211

Quantity:: Add To Cart

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OP27AJGB Specifications

Package/Case:
8-CDIP (0.300, 7.62mm)
Packaging:
Bulk
Series:
-
ProductStatus:
Active
AmplifierType:
General Purpose
NumberofCircuits:
1
OutputType:
-
SlewRate:
2.8V/µs
GainBandwidthProduct:
8 MHz
-3dbBandwidth:
-
Current-InputBias:
10 nA
Voltage-InputOffset:
10 µV
Current-Supply:
-
Current-Output/Channel:
30 mA
Voltage-SupplySpan(Min):
8 V
Voltage-SupplySpan(Max):
44 V
OperatingTemperature:
-55°C ~ 125°C
MountingType:
Through Hole

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OP27AJGB information

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OP27AJGB Typical application Circuitry

OP27AJGB

The OP27AJGB is a precision operational amplifier known for its low noise, high input impedance, and fast settling time. It's particularly suited for high-performance instrumentation, analog-to-digital converters (ADCs), and all forms of analog signal processing where precision is paramount.

Application Scenarios

The OP27AJGB excels in:

- Precision Instrumentation: For accurate measurement and data acquisition.

- Active Filtering: Particularly in applications requiring precise cutoff frequencies and minimal signal distortion.

- Analog-to-Digital Conversion: Acting as a front-end amplifier to prepare signals for digital conversion.

- Voltage Reference Buffering: Providing a stable output voltage for precision circuits.

Parameters and Features

- Low Noise: Essential for applications where signal integrity is critical.

- High Gain Bandwidth Product: Facilitates accurate signal processing at high frequencies.

- Fast Settling Time: Important for applications requiring quick response to signal changes.

- Precision Performance: Low offset voltage enhances accuracy in measurement and signal processing.

Detailed Circuit Connection for Analog-to-Digital Conversion

Utilizing the OP27AJGB to condition an analog signal before it is converted by an ADC involves careful consideration of noise, bandwidth, and impedance matching. Here's how to implement such a circuit:

1. Power Supply Connections: Attach the positive supply voltage (e.g., +15V) to pin 7 (V+) and the negative supply voltage (e.g., -15V) to pin 4 (V-). Decoupling Capacitors (e.g., 0.1 µF ceramic close to the chip and 10 µF electrolytic nearby) are essential for minimizing power supply noise.

2. Input Signal Connection: The analog input signal is connected to the non-inverting input (pin 3) through a Series Resistor (Rin, say 1kΩ) to limit current and protect the OP27AJGB.

3. Feedback Loop for Gain Setting: A Feedback Resistor (Rf, e.g., 100kΩ) from the output (pin 6) to the inverting input (pin 2), combined with a Grounded Resistor (Rg, e.g., 10kΩ) from pin 2, sets the desired gain. Adjust Rf and Rg to achieve the required amplification.

4. Output to ADC: The output from pin 6, now a conditioned and possibly amplified version of the input signal, is directed to the ADC. Consider adding a Low-pass Filter (using a capacitor, Cf, e.g., 22pF, in parallel with Rf) to eliminate high-frequency noise before the signal reaches the ADC.

5. Bypassing High-Frequency Noise: A small Bypass Capacitor (e.g., 10pF) between pin 2 (inverting input) and pin 6 (output) can be used to filter out high-frequency noise, ensuring that only the desired signal bandwidth is amplified.

Design Considerations

When integrating the OP27AJGB into a circuit, particularly for ADC signal conditioning, several factors need to be considered:

- Power Supply Quality: Clean and stable power supplies are crucial to minimize noise and ensure the accuracy of the amplified signal. Use of precision voltage regulators and comprehensive decoupling is recommended.

- Thermal Management: Even though the OP27AJGB is designed for low power consumption, managing heat within the system can impact precision and stability.

- PCB Layout: A carefully planned PCB layout that minimizes noise induction, especially around sensitive areas like the OP27AJGB inputs and the ADC, is critical. Short, direct signal paths and a solid ground plane can significantly improve performance.

- Signal Integrity: Maintaining signal integrity requires careful routing, shielding, and potentially differential signaling if the environment is particularly noisy.

- Impedance Matching: Ensuring that the output impedance of the OP27AJGB circuit and the input impedance of the ADC are compatible is vital for accurate signal transfer and maximization of the dynamic range.

Designing with the OP27AJGB in an analog-to-digital conversion application leverages its precision and low noise characteristics, ensuring accurate and reliable conversion of analog signals to digital form, suitable for high-performance measurement, control systems, and digital signal processing applications.

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3. Are the OP27AJGB price and inventory displayed accurate?

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6. What is the process for return or replacement of OP27AJGB?

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 OP27AJGB we delivered, we will accept the replacement or return of the OP27AJGB 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 OP27AJGB.

(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