Texas Instruments OPA340UA

The OPA340UA is a single, low-power, precision operational amplifier. It is designed for applications that require high accuracy and low noise. The device operates on a wide supply voltage range and offers a high gain-bandwidth product while consuming very low quiescent current. Functions - High Input Impedance: Reduces the loading effect on the previous stage. - Low Output Impedance: Allows for better driving capabilities. - Low Noise: Provides minimal disturbance to signal integrity. - Wide Supply Voltage Range: Operates from a single supply or dual supply voltages, enhancing versatility. - Rail-to-Rail Output: Provides the ability to swing the output voltage to the power supply rails, increasing output range. Applications - Signal Conditioning: Used in amplifying small analog signals from sensors. - Data Acquisition Systems: Ideal for interfacing sensors with ADCs (Analog to Digital Converters). - Instrumentation: Suitable for high-accuracy measurement systems. - Active Filters: Often employed in filter design, particularly in audio applications. - Portable and Battery-Powered Devices: Its low-power operation makes it suitable for battery-operated devices. Alternative Parts - OPA2134: A dual, low-noise op-amp with similar characteristics. - OPA333: A precision op-amp with low drift and low power. - TLV2371: A low-power, rail-to-rail output operational amplifier. - LPV521: A low-power operational amplifier optimized for battery operation. Embedded Modules While the OPA340UA itself is an analog component, it can be integrated into various embedded systems. Examples of embedded modules that may use OPA340UA include: - Sensor Interface Modules: Combines OPA340UA with sensors for data acquisition. - Signal Processing Boards: Integrated into larger systems for processing analog signals. - Embedded Control Systems: Used within systems that require feedback control loops involving analog signals. Related Q&A 1. Q: What is the typical supply voltage range for the OPA340UA? A: The OPA340UA operates from a single supply voltage from 2.7V to 5.5V or dual supplies from ±1.35V to ±2.75V. 2. Q: Can the OPA340UA be used in battery-powered applications? A: Yes, the OPA340UA is designed for low power consumption, making it suitable for battery-powered devices. 3. Q: What are the key features of the OPA340UA that enhance its precision? A: The OPA340UA features low offset voltage, low input bias current, and low noise, contributing to its precision. 4. Q: Is the OPA340UA capable of rail-to-rail output? A: Yes, the OPA340UA has a rail-to-rail output capability, allowing it to output voltages within a small voltage range of the supply rails. 5. Q: What is the gain-bandwidth product of the OPA340UA? A: The gain-bandwidth product of the OPA340UA is typically 1 MHz, making it suitable for a variety of filtering and amplification tasks.