INA129 (7)

TI

The INA129 is available from TI at Xecor. Designed for precision signal amplification, the INA129 offers low offset voltage, low drift, and low noise, making it an excellent choice for accurate measurement applications. Available in multiple package options, including 8-pin plastic DIP and SOIC, it is ideal for industries such as medical instrumentation, industrial automation, and test and measurement. Whether used in data acquisition systems, strain gauge amplifiers, or sensor interfaces, this series ensures high performance and reliability for demanding applications. Xecor is an authorized distributor for TI. Please view our extensive selection of the INA129 series below.

Part Number Description Package Inventory Add To Bom
INA129U 8-SOIC instrumentation amplifiers SOIC-8 5,176
INA129P INST Amp Single ±18V 8-Pin PDIP Tube PDIP-8 8,429
INA129UA/2K5 Precision amplifier SOIC-8 7,220
INA129MDREP INST Amp Single ±18V 8-Pin SOIC T/R SOIC-8 9,824
INA129PA Texas Instruments INA129PA Instrumentation Amplifier PDIP (P)-8 5,129
INA129U/2K5 High-precision, low-power instrumentation amplifiers SOIC-8 5,138
INA129UA INST Amp Single ±18V 8-Pin SOIC Tube SOIC (D)-8 8,737

Key Featrues

Low Offset Voltage (50 µV, maximum): Ensures high accuracy in signal amplification by minimizing errors caused by voltage discrepancies at the input, making it ideal for precision measurement applications.
Wide Bandwidth (1.3 MHz at G = 1): Supports high-speed signal processing, enabling the amplifier to handle a broad range of frequencies without significant distortion, suitable for dynamic signal environments.
High Common-Mode Rejection Ratio (CMRR) (120 dB, minimum): Effectively rejects common-mode noise, ensuring clean signal amplification even in electrically noisy environments, enhancing reliability in industrial and medical applications.
Low Quiescent Current (700 µA): Reduces power consumption, making the amplifier suitable for battery-powered or energy-efficient devices without compromising performance.
Inputs Protected to ±40 V: Provides robust overvoltage protection, safeguarding the amplifier and connected systems from damage due to unexpected voltage spikes, increasing durability in harsh operating conditions.

Applications

Precision Medical Instrumentation: The INA128 and INA129 are ideal for amplifying low-level signals from medical sensors, such as ECG or EEG electrodes. Their low noise, high CMRR, and wide bandwidth ensure accurate signal amplification, making them suitable for critical healthcare monitoring and diagnostic equipment.
Industrial Process Control: The INA12x amplifiers are well-suited for amplifying signals from industrial sensors, such as pressure transducers or load cells, in process control systems. Their robust design, overvoltage protection, and wide supply range make them reliable for harsh industrial environments.
Portable Sensor Interfaces: With their low quiescent current and small package size, the INA128 and INA129 are perfect for battery-powered portable devices that interface with sensors like thermocouples or strain gauges. Their precision and low power consumption ensure long battery life and accurate measurements in field applications.
Environmental Monitoring Systems: The INA12x amplifiers can be used in environmental monitoring systems to amplify signals from sensors measuring parameters like temperature, humidity, or air quality. Their low offset voltage and drift ensure stable and accurate readings over time, even in varying environmental conditions.