OPA728AIDGKRG4

The OPA728AIDGKRG4 is a precision operational amplifier (op-amp) manufactured by Texas Instruments. It is designed for high-performance applications requiring low noise, low distortion, and high bandwidth. Here’s a detailed description of its key features and specifications:

General Characteristics:

• Type: Precision Operational Amplifier
• Package: The OPA728AIDGKRG4 comes in a small, compact 8-pin VSSOP (Very Thin Shrink Small Outline Package) which is ideal 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, providing flexibility in various circuit designs.
• Input Offset Voltage: It features a low input offset voltage, typically around 50 µV, which is crucial for precision applications.
• Input Bias Current: The input bias current is low, typically around 1 pA, minimizing the impact on the circuit performance.
• Gain Bandwidth Product: The OPA728 has a gain bandwidth product of approximately 10 MHz, allowing it to handle a wide range of frequencies effectively.
• Slew Rate: The op-amp boasts a high slew rate of about 20 V/µs, enabling it to respond quickly to rapid changes in input signals.

Performance Features:

• Low Noise: The OPA728 is designed to minimize noise, making it suitable for sensitive applications such as audio processing and instrumentation.
• High Common-Mode Rejection Ratio (CMRR): It has a high CMRR, typically around 120 dB, which helps maintain signal integrity in the presence of common-mode signals.
• High Power Supply Rejection Ratio (PSRR): The PSRR is also high, ensuring that variations in supply voltage have minimal effect on the output.

Applications:

The OPA728AIDGKRG4 is ideal for a variety of applications, including:

• Precision signal conditioning
• Data acquisition systems
• Medical instrumentation
• Audio processing
• Industrial control systems

Additional Features:

• Rail-to-Rail Output: The op-amp provides rail-to-rail output capability, allowing it to utilize the full range of the supply voltage for output signals.
• Low Total Harmonic Distortion (THD): It exhibits low THD, making it suitable for high-fidelity audio applications.

Conclusion:

The OPA728AIDGKRG4 from Texas Instruments is a versatile and high-performance operational amplifier that excels in precision applications. Its combination of low noise, high bandwidth, and robust electrical characteristics makes it a preferred choice for engineers looking to design reliable and accurate electronic systems.