Texas Instruments

INA321E/250G4  

OP Amps, Buffer Amps ICs

INA321E/250G4 Description

The INA321E/250G4 is a high-performance instrumentation amplifier designed by Texas Instruments, a leading manufacturer in the electronics industry. This IC is part of the Linear Amplifiers(ICs) category and is housed in an 8VSSOP package, making it suitable for surface mount applications. The INA321E/250G4 is designed to operate within a supply voltage range of 2.5 V to 5.5 V, providing flexibility in power supply requirements. It boasts an impressively low input bias current of 0.5 pA, which minimizes the impact on the input signal source, ensuring high accuracy and stability in signal processing.

INA321E/250G4 Features

• Wide Supply Voltage Range: The INA321E/250G4 operates within a supply voltage range of 2.5 V to 5.5 V, making it versatile for various power supply configurations.
• Low Input Bias Current: With an input bias current of only 0.5 pA, the INA321E/250G4 minimizes loading effects on the input signal source, ensuring high accuracy and stability.
• Low Offset Voltage: The input offset voltage is maintained at 200 µV, contributing to high precision in signal amplification.
• High Bandwidth: The -3dB bandwidth of 500 kHz ensures that the amplifier can handle a wide range of signal frequencies without significant attenuation.
• Fast Slew Rate: A slew rate of 0.4 V/µs allows the INA321E/250G4 to respond quickly to changes in input signals, making it suitable for dynamic applications.
• Low Supply Current: The device consumes only 40 µA of supply current, making it energy-efficient and suitable for low-power applications.
• High Output Current: The INA321E/250G4 can deliver up to 16 mA per channel, providing robust output drive capability.
• Compliance and Packaging: The amplifier is REACH unaffected and RoHS3 compliant, ensuring environmental safety and regulatory compliance. It is available in a Tape & Reel (TR) package, facilitating efficient handling and assembly in manufacturing processes.

INA321E/250G4 Applications

The INA321E/250G4 is ideal for a variety of applications where precision, low power consumption, and high performance are critical. Some specific use cases include:

• Medical Equipment: In medical devices such as ECG machines, where accurate signal processing is essential for reliable patient monitoring.
• Industrial Automation: For signal conditioning in sensors and transducers, ensuring precise measurement and control in industrial processes.
• Precision Measurement Instruments: In high-precision measurement equipment where low noise and high accuracy are required.
• Battery-Powered Devices: Due to its low power consumption, the INA321E/250G4 is well-suited for portable and battery-powered applications, such as handheld measurement tools and wireless sensors.

Conclusion of INA321E/250G4

The INA321E/250G4 from Texas Instruments stands out as a high-performance instrumentation amplifier with a wide range of technical specifications that cater to demanding applications. Its low input bias current, low offset voltage, and high bandwidth make it an excellent choice for precision signal processing. The combination of low power consumption and high output current capability further enhances its suitability for a variety of applications, from medical devices to industrial automation. With its compliance to environmental and regulatory standards, the INA321E/250G4 is a reliable and efficient solution for modern electronic designs.

INA321E/250G4 Documents

Download datasheets and manufacturer documentation for INA321E/250G4

Images :

Mechanical Outline Drawing      

Models :

INA321E/250G4 Symbol & Footprint by SnapMagic      

Technical Resources :

INA321 TINA-TI Reference Design (Rev. B)      

SPICE Models :

INA321 TINA-TI Spice Model (Rev. A)       INA321 PSpice Model (Rev. A)