Texas Instruments

INA326EA/250G4

INA326EA/250G4 Description

The INA326EA/250G4 is a high-performance instrumentation amplifier designed by Texas Instruments, suitable for a wide range of precision measurement applications. This device is housed in an 8-pin VSSOP package, making it ideal for surface-mount applications where space is a premium. The INA326EA/250G4 operates from a supply voltage range of 2.7 V to 5.5 V, ensuring compatibility with various power supply configurations. It features an input bias current of only 200 pA, minimizing the impact on sensitive signals and ensuring high accuracy in low-current applications. The amplifier boasts a -3 dB bandwidth of 1 kHz, making it well-suited for applications requiring precise signal conditioning at lower frequencies.

INA326EA/250G4 Features

• Wide Supply Voltage Range: The INA326EA/250G4 operates from 2.7 V to 5.5 V, providing flexibility in power supply design and compatibility with a variety of systems.
• Low Input Bias Current: With an input bias current of just 200 pA, this amplifier minimizes loading effects on high-impedance sources, ensuring accurate signal representation.
• Low Input Offset Voltage: The 20 µV input offset voltage ensures high accuracy in differential measurements, making it ideal for precision applications.
• Single-Circuit Design: The single-circuit design simplifies integration and reduces complexity in multi-channel systems.
• High Output Current Capability: The 25 mA output current per channel allows the INA326EA/250G4 to drive moderate loads directly, reducing the need for additional buffering stages.
• Compliance and Reliability: The device is REACH unaffected and RoHS3 compliant, ensuring environmental sustainability and regulatory compliance. Additionally, its moisture sensitivity level (MSL) of 2 (1 Year) ensures robustness in various manufacturing environments.
• Packaging: The INA326EA/250G4 is available in a tape and reel (TR) package, facilitating automated assembly processes and ensuring consistent quality.

INA326EA/250G4 Applications

The INA326EA/250G4 is particularly well-suited for applications requiring precision signal conditioning and amplification. Its low input bias current and low offset voltage make it ideal for high-impedance sensors and low-level signal sources. Some specific use cases include:

• Precision Sensor Interfaces: Ideal for interfacing with high-impedance sensors such as thermocouples, strain gauges, and photodetectors, where minimal loading and high accuracy are critical.
• Medical Equipment: Suitable for medical devices that require precise signal amplification and conditioning, such as ECG and EEG machines.
• Industrial Automation: Useful in industrial control systems where accurate measurement and signal processing are essential for process control and monitoring.
• Data Acquisition Systems: The INA326EA/250G4 can be employed in data acquisition systems to amplify and condition signals before digitization, ensuring high-fidelity data capture.

Conclusion of INA326EA/250G4

The INA326EA/250G4 from Texas Instruments stands out as a versatile and high-performance instrumentation amplifier, offering a combination of low input bias current, low offset voltage, and wide supply voltage range. Its single-circuit design and high output current capability make it an excellent choice for precision signal conditioning in a variety of applications. The device's compliance with environmental and regulatory standards further enhances its appeal for modern electronics design. Whether used in medical equipment, industrial automation, or data acquisition systems, the INA326EA/250G4 delivers reliable performance and accuracy, making it a valuable component in any precision measurement system.