The difference between analog chips and digital chips

The difference between analog chips and digital chips

1. Analog chips are used to generate, amplify and process various analog signals, while digital analog Chips are used to generate, amplify and process various digital signals;

2. Analog chips use the amplification function of transistors, while digital analog chips use the switching function of crystals.

Chip

After the invention and mass production of the transistor, various solid-state semiconductor components such as diodes, transistors, etc. were widely used, replacing The function and role of vacuum tubes in circuits. In the mid-to-late 20th century, advances in semiconductor manufacturing technology made integrated circuits possible. Compared to hand-assembled circuits using individual discrete electronic components, integrated circuits can integrate a large number of microtransistors into a small chip, which is a huge improvement. The scale production capabilities, reliability, and modular approach to circuit design of integrated circuits ensured the rapid adoption of standardized integrated circuits to replace designs using discrete transistors.

Integrated circuits have two main advantages over discrete transistors: cost and performance. The low cost is due to the fact that the chip has all its components printed as a unit via photolithography technology, rather than making just one transistor at a time. The high performance is due to the rapid switching of components, which consumes less energy because the components are small and close to each other. In 2006, the chip area increased from a few square millimeters to 350 mm², and each mm² could reach one million transistors.

The first integrated circuit prototype was completed by Jack Kilby in 1958 and included a bipolar transistor, three resistors and a capacitor.

According to the number of microelectronic devices integrated on a chip, integrated circuits can be divided into the following categories:

• Small Scale Integrated Circuit (SSI’s full name in English is Small Scale Integration) less than 10 logic gates or less than 100 transistors.

• Medium Scale Integrated Circuit (MSI full name in English is Medium Scale Integration) has 11~100 logic gates or 101~1k transistors.

• Large Scale Integrated Circuit (LSI’s full name in English is Large Scale Integration) has 101~1k logic gates or 1,001~10k transistors.

• Very large scale integrated circuit (VLSI’s full name in English is Very large scale integration) has 1,001~10k logic gates or 10,001~100k transistors.

• Ultra Large Scale Integrated Circuit (ULSI full name in English is Ultra Large Scale Integration) has 10,001~1M logic gates or 100,001~10M transistors.

• GLSI (full name in English is Giga Scale Integration) has more than 1,000,001 logic gates or more than 10,000,001 transistors.

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