Analog Design Engineer
The analog design engineer is a very important part of the semiconductor design process as they affect every portion of the silicon design (sometimes indirectly).
We live in an analog world. Rarely is anything ever completely black or white -- rather, things are varying levels of black or white. The same thing applies to electronics. You might have a "digital" circuit, which is generally thought of as being on or off, 0 or 1, but in reality, at the circuit level, these are analog transistors which need to be designed such that they give the appearance of being digital. That is one portion of an analog engineer's job. This category of analog engineering, is rarely what is thought-of when the term "analog designer" is mentioned, yet without these "circuits" or "devices" engineers, nothing else could be done.
The more typical meaning of "analog design engineer" is referring to someone who designs circuits which are intended to have analog functionality; circuits which constantly vary their output voltage or currents rather than simply turning on or off. These engineers will be designing circuits such as PLLs (phase locked loops), bandgaps, ADCs (analog to digital converters), DACs (digital to analog converters), high current drivers, and other complex designs.
The analog engineer uses schematics or hardware description languages (Verilog-A or AVHDL for example) to design the circuits based upon their intimate knowledge of electronics and the interactions between devices at the silicon level. Once the circuit is designed, they will use simulator software to approximate, with high accuracy, if the circuit will work as expected. This process is repeated until the circuit operates as expected.
The field of analog design is highly detail-oriented and involves meticulous attention to microscopic values to produce a working design. That is why highly skilled analog designers are very well compensated and highly sought-after by the companies that need them. It's a job that not everyone can do or even wants to do, but if you have the knack for it and the eye for excruciating detail, it can be extremely rewarding and challenging.
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