The INA155U is a high-performance, precision instrumentation amplifier designed by Texas Instruments (formerly Luminary Micro), offering exceptional signal conditioning capabilities for sophisticated measurement and sensing applications. This compact, surface-mount integrated circuit provides a single-channel, rail-to-rail amplification solution that addresses critical design challenges in precision analog signal processing.
Engineered for demanding environmental conditions, the amplifier operates across an extensive temperature range from -55°C to 125°C, making it suitable for industrial, automotive, and aerospace applications. Its robust design features a lead-free, RoHS-compliant 8-SOIC package, ensuring both environmental responsibility and reliable performance.
The amplifier delivers remarkable performance characteristics, including an impressive -3dB bandwidth of 550kHz, a remarkably low input bias current of 1pA, and a tight input offset voltage of 200µV. These specifications make it ideal for high-precision measurement systems requiring minimal signal distortion and exceptional noise rejection.
Powered by a flexible single or dual supply voltage ranging from 2.7V to 5.5V (or ±1.35V to 2.75V), the INA155U consumes minimal power at just 1.7mA. Its rail-to-rail output capability ensures maximum signal swing and dynamic range, while providing a robust 50mA output current per channel.
Key advantages include its low noise performance, high precision, wide supply voltage range, and compact packaging. The amplifier is particularly well-suited for sensor signal conditioning, strain gauge measurements, thermocouple amplification, bridge circuit applications, and low-power instrumentation systems.
While the INA155U is a specialized device, potential alternative or equivalent models might include other instrumentation amplifiers from Texas Instruments' portfolio such as the INA126, INA128, or INA129, each offering similar signal conditioning capabilities with slight variations in performance specifications.
Professionals in engineering, research, and industrial design will find this instrumentation amplifier an excellent solution for applications demanding high-precision analog signal processing with minimal complexity and exceptional reliability.
INA155U Key Technical Attributes
Manufacturer Part Number INA155U
Manufacturer Luminary Micro / Texas Instruments
Amplifier Type Instrumentation
INA155U Packing Size
Packaging Type Tube
Encapsulation 8-SOIC
Size 8-SOIC (0.154", 3.90mm Width)
Thermal Characteristics Operating Temperature -55°C ~ 125°C
Electrical Properties Voltage - Supply, Single/Dual (±) 2.7 V ~ 5.5 V, ±1.35 V ~ 2.75 V
INA155U Application
Designed for signal conditioning in various applications such as medical devices, data acquisition systems, and industrial process controls where low input bias and high gain accuracy are required.
INA155U Features
The INA155U features a rail-to-rail output which enhances the dynamic range in single or split supply applications. It boasts a wide bandwidth of 550kHz and a slew rate of 6.5 V/s, ensuring rapid signal processing. This instrumentation amplifier also maintains a low supply current of 1.7mA, which makes it ideal for battery-operated equipment. Additionally, it provides low input bias and offset currents to preserve signal integrity, enhancing its application in precision sensors and measurement systems.
INA155U Quality and Safety Features
The product complies with RoHS standards, ensuring lead-free components which guarantee safety and environmental preservation. The Moisture Sensitivity Level (MSL) is rated at 2, supporting reliability and quality for up to 1 year under specific storage conditions.
INA155U Compatibility
The INA155U is compatible with various forms of analog devices, benefitting from its dual voltage supply capability and surface mount technology for diverse integration into electronic systems.
INA155U Datasheet PDF
Our website offers the most authoritative and current datasheet for the INA155U. We highly recommend that customers download this essential document directly from the current page to ensure accurate and detailed product specifications and usage guidelines.
Quality Distributor
IC-Components stands as a premium distributor for Texas Instruments, offering exclusive and reliable sourcing for the INA155U. We suggest our customers to get a quote directly on our website to benefit from our tailored customer service and competitive pricing, ensuring you get the best in quality and delivery services.
