Texas Instruments

OPA891DR  

OP Amps, Buffer Amps ICs

OPA891DR Description

The OPA891DR is a high-performance operational amplifier (op-amp) from Texas Instruments, designed for demanding applications requiring wide bandwidth and high slew rate. This single-channel op-amp features a gain bandwidth product of 180 MHz and a -3dB bandwidth of 135 MHz, making it ideal for high-frequency signal processing. It operates from a wide supply voltage range of 9 V to 36 V, ensuring compatibility with various power supply configurations. The OPA891DR boasts a high slew rate of 105 V/µs, enabling it to handle fast-changing signals with minimal distortion.

OPA891DR Features

• High Gain Bandwidth Product: The OPA891DR offers a gain bandwidth product of 180 MHz, which is significantly higher than many comparable op-amps. This feature allows for high-frequency amplification and signal processing with minimal phase shift and distortion.
• Wide Supply Voltage Range: With a supply voltage range of 9 V to 36 V, the OPA891DR is versatile and can be used in a variety of power supply environments, from low-voltage portable devices to high-voltage industrial systems.
• High Slew Rate: The 105 V/µs slew rate ensures that the OPA891DR can handle fast signal transitions, making it suitable for applications requiring high-speed signal processing.
• Low Input Bias Current: The low input bias current of 9 µA minimizes the loading effect on the input signal source, preserving signal integrity and accuracy.
• Low Input Offset Voltage: The OPA891DR has a low input offset voltage of 200 µV, which is crucial for precision applications where accuracy is paramount.
• High Output Current: The op-amp can deliver up to 200 mA of output current per channel, allowing it to drive heavy loads directly without additional buffering.
• Surface Mount Packaging: The OPA891DR is available in a surface mount package (Tape & Reel), which is ideal for automated assembly processes and compact PCB designs.
• Compliance and Reliability: The OPA891DR is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and regulatory standards. Additionally, its moisture sensitivity level (MSL) is 1 (Unlimited), making it suitable for various manufacturing environments.

OPA891DR Applications

The OPA891DR is well-suited for a wide range of applications due to its high performance and versatility. Some specific use cases include:

• High-Frequency Signal Processing: The wide bandwidth and high slew rate make the OPA891DR ideal for applications such as RF signal amplification, high-speed data acquisition systems, and video signal processing.
• Precision Instrumentation: The low input offset voltage and low input bias current ensure accurate signal amplification in precision measurement devices and instrumentation.
• Industrial Control Systems: The wide supply voltage range and high output current capability make the OPA891DR suitable for industrial applications where robustness and reliability are critical.
• Audio Applications: The high slew rate and wide bandwidth can be utilized in high-fidelity audio amplifiers and professional audio equipment for improved sound quality.

Conclusion of OPA891DR

The OPA891DR from Texas Instruments is a high-performance op-amp that stands out in its category due to its wide bandwidth, high slew rate, and versatile operating range. Its low input bias current and low input offset voltage make it suitable for precision applications, while its high output current capability ensures it can drive heavy loads effectively. The OPA891DR's compliance with environmental and regulatory standards, along with its surface mount packaging, makes it a reliable choice for modern electronics manufacturing. Whether used in high-frequency signal processing, precision instrumentation, industrial control systems, or audio applications, the OPA891DR delivers exceptional performance and reliability.

OPA891DR Documents

Download datasheets and manufacturer documentation for OPA891DR

Datasheets :

OPAx891