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  • Core expertise

    High-performance analog and mixed-signal

     
    • Bandgap references: low-voltage (LV) and high-voltage (HV)
    • Instrumentation amplifiers: chopping amplifiers
    • Low drop out (LDO) regulators
    • Low-noise switched capacitor circuits
    • Low-noise correlated double sampling (CDS) sample & holds
    • Operational transconductance amplifiers (OTAs): offset compensation
    • Phase-locked loops (PLL): low jitter, delta-sigma fractional-N synthesis
    • Reference buffers
    • High-precision, temperature-stable Xtal-less oscillators
    • Digital-to-analog (DA) converters: high-accuracy, high-yield, fast-settling
    • Delta-Sigma (ΔΣ) analog-to-digital (AD) converters: continuous and discrete time
    • Successive approximation AD converters
    • Pipeline AD converters
    • Inductive bi-directional low-datarate link
    • Monolithic oscillators with low-phase noise
    • Ultralow-power circuits

     

    MEMS sensor-actuator interfacing

     
    • Resistive sensor interfaces: Wheatstone bridge readout
    • Capacitive sensor interfaces: tilt, accelerometer, pressure sensors, …
    • Magnetic sensor interfaces: Hall sensors, GMR (giant magneto resistance) sensor interface
    • Inductive proximity sensor architectures
    • High accuracy, fully integrated temperature sensors
    • Delta-Sigma (ΔΣ) analog-to-digital (AD) converters: continuous and discrete time
    • Successive approximation AD converters

    Power management

     
    • LDO regulators: low quiescent current / high current output
    • Protection circuits: current, voltage and temperature overprotection
    • Integrated switching-mode power supplies (highly-efficient DC-DC converters):
    • Buck, boost, buck/boost, fly-back, … topologies
    • Continuous and discontinuous
    • Voltage and current mode
    • Single phase or multiphase
    • High-frequency - small inductance
    • Asynchronous and synchronous
    • Pulse width modulation (PWM) – Pulse frequency modulation (PFM)
    • Integrated charge pumps and voltage doublers
    • Wireless charging and battery management: state-of-charge, state-of-health.

    High-voltage IC design

     
    • High-voltage (bi-directional) switches
    • High-voltage I/O buffers
    • Class AB/G/H amplifiers
    • Class D audio amplifiers
    • (Self-oscillating) power amplifiers
    • High-voltage low drop out (LDO) regulators and bandgap references
    • High-voltage DC-DC converters: capacitive and inductive, buck, boost, buck-boost, flyback, converters and controllers
    • High-voltage charge pumps and voltage doublers
    • High-voltage instrumentation front-ends
    • H-bridge (e.g. motor steering applications)
    • MEMS and piezo drivers (ultrasound)
    • High-voltage drivers:

          - MEMS drivers
          - Line drivers
          - Gate drivers
          - Laser/LED/LCD/backlight drivers
          - Low-side (LS) and high-side (HS) drivers
          - Electrode-array drivers (brain, nerve interfaces)
          - Solenoid (coil) driver