INA114APG4 – TEXAS INSTRUMENTS

The Texas Instruments INA114APG4 is a precision, zero-drift instrumentation amplifier packaged in a small, space-saving 8-pin SOIC package. It features a low input bias current of typically 45nA, crucial for high-impedance sensor applications. Its input common-mode voltage range extends from -0.1V to VCC + 0.1V, allowing for operation with both positive and negative supply voltages. The device boasts a low input offset voltage of typically 25µV, minimizing errors in signal amplification. Gain is set externally via a single resistor, providing design flexibility from 1 to 1000._x000D_
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The INA114APG4 is ideal for applications requiring high accuracy and low drift, such as thermocouple signal conditioning, strain gauge amplification, and precision bridge measurements. Its high common-mode rejection ratio (CMRR) of typically 100dB minimizes the impact of common-mode noise. The device operates from a single supply of 2.7V to 5.5V, or a dual supply of ±1.35V to ±2.75V, offering considerable power supply flexibility. Its low power consumption, typically 350µA at ±5V, makes it suitable for battery-powered systems. The choice of the PG4 suffix indicates a lead-free, RoHS-compliant package. Engineers should consider the INA114APG4 when precise amplification of low-level signals with minimal offset drift and high common-mode noise rejection is paramount.