ug128UG128 mark of Active-SSemi. Vbat=4.1V,. 9. Output: 5V2.4A Horizontal. U. Rev 2.0, 0. UG128. 09-NovPart #: UG-128. Download. File Size: 631Kbytes. Page: 21 Pages. Description: Low Power, Low Noise and Distortion ail-to-Rail Output Amplifiers. Manufacturer: Analog