TIINA128PA
Overview
The INA128PA is a low-power, general-purpose instrumentation amplifier designed for high-accuracy signal acquisition. It features a versatile 3-op-amp design that allows for gain settings from 1 to 10,000 using a single external resistor. With a wide supply range of +/-2.25V to +/-18V and low 700uA quiescent current, it is well-suited for both battery-powered and industrial wired applications.
Why Choose This Part
The device offers an exceptionally low input offset voltage of 25uV and high stability over a wide temperature range up to 125C. Its 8-PDIP package makes it ideal for through-hole prototyping and maintenance of legacy industrial hardware. Additionally, the 1.3 MHz bandwidth and 4V/us slew rate provide excellent dynamic performance for an instrumentation amplifier in this power class.
Applications
Key Specifications
Getting Started
To use the INA128PA, connect a single external resistor across pins 1 and 8 to set the desired gain according to the formula G = 1 + (50k / Rg). Ensure decoupling capacitors are placed close to the supply pins, especially when operating near the maximum +/-18V rails. For breadboard prototyping, the 8-PDIP package fits standard 0.1-inch pitch layouts without the need for SMT adapters.
