INA114BU – TEXAS INSTRUMENTS

The Texas Instruments INA114BU is a precision, single-supply, instrumentation amplifier housed in a SOIC-8 package. It features a low input bias current of typically 25nA, enabling accurate amplification of high-impedance sources. Its input common-mode voltage range extends to the negative rail, allowing for single-supply operation down to 0V, a crucial advantage in battery-powered applications. The device boasts a typical gain accuracy of ±0.05% and a low input offset voltage of typically 25µV, ensuring high precision signal amplification. The gain is externally set via a single resistor, simplifying design and reducing component count. Typical applications include low-level signal acquisition in sensor interfaces (e.g., thermocouples, strain gauges), bridge amplifier circuits, and medical instrumentation where high accuracy and low noise are paramount. The INA114BU’s low power consumption (typically 600µA at ±15V supply) and wide bandwidth (1.2MHz) make it suitable for a variety of applications requiring high performance in compact designs. The SOIC-8 package facilitates surface mount assembly, further enhancing its suitability for high-density PCB layouts.