Texas Instruments

INA155UA  

OP Amps, Buffer Amps ICs

INA155UA Description

The INA155UA from Texas Instruments is a high-performance instrumentation amplifier designed for precision signal conditioning in low-voltage applications. Packaged in an 8-SOIC surface-mount form factor, this single-circuit IC operates over a 2.7V to 5.5V supply range, making it ideal for battery-powered and portable devices. With an ultra-low input bias current of 1 pA and a minimal input offset voltage of 200 µV, the INA155UA ensures high accuracy in sensitive measurements. Its 550 kHz bandwidth and 6.5V/µs slew rate enable fast signal processing, while the 50 mA output current capability supports robust driving of downstream components.

INA155UA Features

• Low Power Consumption: Draws only 1.7mA supply current, optimizing energy efficiency.
• Wide Supply Range: Operates from 2.7V to 5.5V, suitable for 3V/5V systems.
• High Precision: 200 µV offset voltage and 1 pA bias current minimize errors in DC-coupled applications.
• Fast Dynamic Response: 550 kHz bandwidth and 6.5V/µs slew rate for rapid signal amplification.
• Robust Output: 50 mA output current ensures strong signal drive capability.
• Reliable Packaging: MSL 2 (1 Year) rated with RoHS3 and REACH compliance for environmental safety.

INA155UA Applications

The INA155UA excels in applications requiring high gain accuracy, low noise, and wide bandwidth, such as:

• Medical Instrumentation: ECG amplifiers, patient monitoring systems.
• Industrial Sensors: Strain gauges, bridge amplifiers, and pressure transducers.
• Portable Devices: Battery-operated data loggers and handheld test equipment.
• Automotive Systems: Sensor signal conditioning in low-voltage environments.
• Test & Measurement: Precision signal chains in oscilloscopes and analyzers.

Conclusion of INA155UA

The INA155UA stands out as a versatile instrumentation amplifier, combining low power, high precision, and robust performance in a compact 8-SOIC package. Its wide supply range and exceptional dynamic response make it a superior choice for precision analog designs, particularly in portable and industrial systems. Engineers seeking a reliable, high-performance solution for low-voltage signal conditioning will find the INA155UA an optimal fit for demanding applications.

INA155UA Documents

Download datasheets and manufacturer documentation for INA155UA

Datasheets :

INA155      

PCN Design/Specification :

Design 25/Feb/2022