OPA2355DGSA/250G4

The OPA2355DGSA/250G4 is a precision operational amplifier (op-amp) manufactured by Texas Instruments. It is designed for a wide range of applications, including signal conditioning, data acquisition, and active filtering. Here’s a detailed description of its key features and specifications:

General Characteristics:

• Type: Precision Operational Amplifier
• Package: The OPA2355 is available in a small, surface-mount package (SOT-23-5), which makes it suitable for space-constrained applications.
• Temperature Range: It operates over an extended temperature range, typically from -40°C to +125°C, making it suitable for industrial and automotive applications.

Electrical Specifications:

• Supply Voltage: The op-amp can operate with a dual supply voltage ranging from ±2.5V to ±18V, or a single supply from 5V to 36V.
• Input Offset Voltage: The OPA2355 features a low input offset voltage, typically around 50 µV, which enhances its precision in applications requiring accurate signal amplification.
• Input Bias Current: The input bias current is low, typically around 10 pA, which minimizes the loading effect on the input signal source.
• Common-Mode Rejection Ratio (CMRR): The CMRR is high, typically around 120 dB, ensuring that variations in the common-mode voltage do not significantly affect the output.
• Power Supply Rejection Ratio (PSRR): The PSRR is also high, typically around 120 dB, which helps maintain stable performance despite variations in the supply voltage.

Performance Features:

• Gain Bandwidth Product: The OPA2355 has a gain bandwidth product of approximately 1 MHz, allowing it to handle a variety of signal frequencies effectively.
• Slew Rate: The slew rate is around 0.1 V/µs, which is adequate for many low-frequency applications.
• Output Drive Capability: The op-amp can drive loads of up to 600 Ω, making it versatile for different output configurations.

Applications:

The OPA2355 is suitable for a variety of applications, including:

• Precision signal amplification in sensor applications.
• Active filters in audio and communication systems.
• Data acquisition systems where high accuracy is required.
• Medical instrumentation and portable devices.

Additional Features:

• Low Noise: The op-amp is designed to minimize noise, making it ideal for sensitive applications.
• Rail-to-Rail Output: The output stage is designed to provide rail-to-rail output, maximizing the output voltage swing and improving the dynamic range.

Conclusion:

The OPA2355DGSA/250G4 from Texas Instruments is a highly versatile and precise operational amplifier that meets the demands of modern electronic applications. Its combination of low offset voltage, low bias current, and high CMRR makes it an excellent choice for applications requiring high accuracy and stability.