Texas Instruments

OPA2345UA

OPA2345UA Description

The OPA2345UA from Texas Instruments is a high-performance, CMOS-based dual operational amplifier from the MicroAmplifier™ series. Designed for precision and efficiency, it operates within a 2.5V to 5.5V supply range, making it ideal for low-voltage applications. With an ultra-low input bias current of 0.2 pA and a low input offset voltage of 200 µV, it ensures high accuracy in signal conditioning. The device features a 3 MHz gain bandwidth product and a slew rate of 2V/µs, enabling fast response times for dynamic signals. Packaged in an 8-SOIC tube, it is RoHS3 compliant and suitable for surface-mount applications.

OPA2345UA Features

• Ultra-Low Power: Consumes only 150µA per channel, ideal for battery-powered systems.
• High Precision: 0.2 pA input bias current and 200 µV offset voltage for accurate signal processing.
• Wide Supply Range: Operates from 2.5V to 5.5V, supporting both single and dual-supply configurations.
• Fast Response: 3 MHz bandwidth and 2V/µs slew rate ensure performance in high-speed applications.
• Robust Packaging: 8-SOIC tube with MSL 2 (1 Year) moisture sensitivity, ensuring reliability.
• Compliance: ROHS3 Compliant and REACH Unaffected, meeting environmental standards.

OPA2345UA Applications

• Portable & Battery-Powered Devices: Due to its low power consumption, it excels in wearables, IoT sensors, and medical devices.
• Signal Conditioning: Ideal for sensor interfaces, data acquisition systems, and active filters requiring high precision.
• Audio & Signal Processing: Suitable for headphone amplifiers, audio preamps, and low-noise analog circuits.
• Industrial Control Systems: Used in process control, instrumentation, and automation due to its robustness and accuracy.

Conclusion of OPA2345UA

The OPA2345UA stands out as a versatile, low-power, high-precision operational amplifier, combining CMOS efficiency with TI’s MicroAmplifier™ technology. Its wide supply range, ultra-low bias current, and fast response make it a top choice for portable, industrial, and precision analog applications. Whether for battery-operated systems or high-accuracy signal chains, this amplifier delivers reliable performance while adhering to environmental and industry standards.