Wide input range This amplifier uses the AD620 instrumentation amplifier to amplify microvolt and millivolt signals with higher accuracy and linearity than competitors. Adjustable gain up to 1000x The potentiometer provides up to 1000x gain with precise adjustment for optimal performance. Zero-offset adjustment Calibrate the zero point to reduce offset drift and improve measurement accuracy. Output drive module for vacuum output A module-based output stage for the vacuum output uses the 7660A chip to provide a negative rail and support two load configurations for added versatility. Applications and scenarios - Front-end amplification for ultra-low level sensors in biomedical or industrial measurement (microvolt/millivolt signals requiring high accuracy). - Precision sensor calibration and signal conditioning for data acquisition systems. - Vacuum system control or related instrumentation where adjustable gain, offset compensation, and flexible load configurations improve reliability.