Subcircuit ICs by Yashvanth Kumar

[yashvanthkumard]

Overview

This pull request adds 10 new integrated circuit (IC) subcircuits to the eSim Subcircuit Library. The contribution expands the available analog and digital component library, enabling users to simulate a wider range of ICs within eSim. The work involved designing, implementing, testing, and validating each subcircuit before integration into the library.

Added ICs

Analog ICs

• TL082 – Wide Bandwidth Dual JFET Input Operational Amplifier
• CA3160 – BiMOS Operational Amplifier
• LM592 – Differential Video Amplifier
• CA3100 – 38 MHz Operational Amplifier
• MC1536 – High Voltage Operational Amplifier
• UA760 – High-Speed Differential Comparator

Digital ICs

• 74HC354 – 8-Input Multiplexer/Register
• 74HC367 – Hex Buffer/Line Driver
• 74HC4515 – 4-to-16 Line Decoder/Demultiplexer
• HD74HC83 – 4-Bit Binary Full Adder

Implementation

For each IC:

• Studied the manufacturer's datasheet to understand the device functionality and specifications.
• Designed the internal subcircuit using components available in the eSim library.
• Created the corresponding KiCad schematic and supporting simulation files.
• Developed dedicated test circuits for functional verification.
• Validated the implementation using Ngspice simulations and compared the results with the expected datasheet behavior.
• Organized the completed subcircuits following the existing library/SubcircuitLibrary structure.

Testing

• Verified all subcircuits using dedicated test circuits.
• Generated and validated simulation results using Ngspice.
• Confirmed correct functionality against the corresponding datasheet specifications prior to integration into the library.