OPA121KU/2K5

Product Overview

Category

OPA121KU/2K5 belongs to the category of operational amplifiers (op-amps).

Use

This product is commonly used in electronic circuits for amplifying and processing analog signals.

Characteristics

• High gain: The OPA121KU/2K5 offers a high open-loop gain, allowing for accurate signal amplification.
• Low noise: It has low input voltage noise, ensuring minimal interference with the desired signal.
• Wide bandwidth: This op-amp provides a wide frequency response, making it suitable for various applications.
• Low power consumption: The OPA121KU/2K5 is designed to operate efficiently with low power requirements.

Package

The OPA121KU/2K5 is available in a small outline package (SOIC) with 8 pins.

Essence

This op-amp is designed to provide precise and reliable amplification of analog signals in electronic circuits.

Packaging/Quantity

The OPA121KU/2K5 is typically sold in reels or tubes, containing a quantity of 250 units per package.

Specifications

• Supply voltage range: ±2.25V to ±18V
• Input offset voltage: 150µV (maximum)
• Input bias current: 0.1pA (typical)
• Gain bandwidth product: 10MHz (typical)
• Slew rate: 7V/µs (typical)
• Operating temperature range: -40°C to +125°C

Detailed Pin Configuration

The OPA121KU/2K5 features the following pin configuration:

1. V+
2. V-
3. Output
4. NC (No Connection)
5. Inverting Input (-)
6. Non-Inverting Input (+)
7. NC (No Connection)
8. V-

Functional Features

• High precision amplification: The OPA121KU/2K5 provides accurate amplification of analog signals with low distortion.
• Rail-to-rail output swing: It allows the output voltage to reach close to the supply rails, maximizing dynamic range.
• Unity-gain stable: This op-amp remains stable even at unity gain, making it suitable for various feedback configurations.
• Low input bias current: The OPA121KU/2K5 exhibits minimal current flow into its inputs, reducing loading effects.

Advantages and Disadvantages

Advantages

• High gain and wide bandwidth enable precise signal amplification across a broad frequency range.
• Low noise ensures minimal interference with the desired signal.
• Low power consumption makes it suitable for battery-powered applications.
• Rail-to-rail output swing maximizes dynamic range.

Disadvantages

• Limited supply voltage range compared to some other op-amps.
• Higher input offset voltage compared to certain precision op-amps.

Working Principles

The OPA121KU/2K5 operates based on the principles of differential amplification. It amplifies the voltage difference between its inverting and non-inverting inputs, producing an amplified output signal. The internal circuitry of the op-amp ensures high gain, low noise, and stability.

Detailed Application Field Plans

The OPA121KU/2K5 finds application in various fields, including: 1. Audio amplification: It can be used in audio systems to amplify weak audio signals with high fidelity. 2. Sensor signal conditioning: The op-amp can process and amplify signals from sensors such as temperature, pressure, or light sensors. 3. Instrumentation and measurement: It is suitable for precision measurement applications that require accurate signal amplification. 4. Active filters: The OPA121KU/2K5 can be used in active filter circuits to shape the frequency response of a signal.

Detailed and Complete Alternative Models

1. OPA124: This op-amp offers similar characteristics and performance as the OPA121KU/2K5 but comes in a different package.
2. OPA211: A high-performance alternative with even lower noise and higher bandwidth, suitable for demanding applications.
3. LM358: A general-purpose op-amp with lower performance specifications but widely available and cost-effective.

These alternative models provide options based on specific requirements and constraints.

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