As a company built based on Analog Technologies as our company name shows, we are so excited, after years trials and errors, to start offering two types of analog ICs (Integrated Circuits): operational amplifiers and DC-DC converters - the two most commonly used building blocks found in almost all electronic systems, from cars, phones, to washing machines, microwaves, etc. Our first Op-amp is a high precision amplifier, AT8551, it is an upgraded replacement for the well-known AD8551, but ours have smaller offset voltage and higher slew rate. Our first DC-DC converter is ATDC1934, another upgraded replacement for LT1934 but with > 2X higher output current capability, 700mA vs. 300mA, and slightly higher input voltage limit, 38V vs. 34V.