Ultra-low-noise Temperature Sensors and References that are more than 10-dB quieter than Widlar or Brokaw structures. 
We also have a CMOS compatible regulator arrangement that is more than 7-dB quieter than an ideal Brokaw cell would be.

Low-power/low-noise TCXO techniques

Adjustable linear tuning Varactor arrangements for CMOS

Non-linear analogue processing

Component design and layout techniques for high stability and precise matching

Hi-reliability Non-Volatile Memory in standard technologies