Mixed-Signal Experience

  • Sense amplifiers
  • Opamps
  • Variable-gain amplifiers
  • Oscillators
  • VCOs and DCOs
  • PLLs (baseband and RF), DLLs,
  • Clock and data recovery (CDR) circuits
  • Multi-GHz muxes and demuxes
  • RF modulators, demodulators, and mixers
  • Multipliers
  • RF FIR/polyphase and continuous-time filters
  • LNAs
  • DDR interface circuits
  • ADCs, DACs (kHz to GHz)
    • Sigma-Delta
    • Successive approximation
    • Flash
    • Pipelined
  • Cable equalizers
  • Comparators
    • Auto-zeroing comparators with less than 200μV offsets
    • Comparators within feedback loops for cable equalizer (180nm)
    • Data slicers for 3.2Gb/s clock and data recovery (250nm and 130nm)
  • Power-on-reset (PoR) circuits
  • Bandgap references and bias circuits
  • Level shifters
  • IO cells