ASIC Point

Silicon Lab

Analog & Mixed-Signal Problems

Build a design, hunt its bugs, or repair what fails. Every answer runs on a real simulator.

Build starts from a specification: make it work, then make it small or fast. Bug Hunt asks for the checker or the test that catches broken designs. Repair hands you a failure: find the cause, then fix the design.

Analog · E1 Circuits and SPICE

  1. E1.6.1 The bias that came from nowhere 1125 Fix Medium Verilator

Analog · E2 The MOS Transistor

  1. E2.4.1 The tail current that followed its drain 1125 Fix Medium Verilator

Analog · E3 Single-Transistor Amplifiers

  1. E3.2.1 The gain that fell when RD rose 900 Fix Easy Verilator

Analog · E4 Current Mirrors and Bias

  1. E4.1.1 The mirror that overshoots 900 Fix Easy Verilator

Analog · E5 Differential Pairs and Op-Amps

  1. E5.5.1 The offset that came with a faster edge 1275 Fix Medium Verilator

Analog · E6 Frequency Response and Stability

  1. E6.4.1 The buffer that a bigger C_c slowed 1275 Fix Medium Verilator

Analog · E7 Noise, Mismatch and Variation

  1. E7.7.1 The offset every die agreed on 1425 Fix Hard Verilator

Analog · E8 Capstones and the Mixed-Signal Edge

  1. E8.2.1 The pedestal that came with a wider switch 1275 Fix Medium Verilator