Note the 500M Ohm resistor is only to test the current reference.  It would be replaced by your application circuit. Research Links A 2-nW 1.1-V Self-Biased Current Reference in CMOS Technology CMOS Current Reference for UltraLow Energy Consumption  Archive:  Current-Source.7z   Program = LTSPICE Extract into directory.  Includes the required Read more…
If you need a voltage reference when doing energy harvesting it is very helpful have a band gap reference that uses very little current. Â This topology uses “Self Cascode Mosfet” Â abreviated as SCM. Â The LTSPICE design uses 4.5 nano Amperes and outputs a 0.6 Volt reference voltage. Research Links REFERENCIA-DE-CORRENTE-CMOS-PARA-APLICACOES-DE-ULTRABAIXO-CONSUMO-DE-POTENCIAÂ Read more…
Document Links NEW FOUR-PHASE GENERATION. CIRCUITS FOR LOW-VOLTAGE CHARGE PUMPS Design and analysis of 10V 4-phase charge pump in ON Semiconductor C5 process. High Efficiency and Low Noise Charge Pump Circuits for Non-volatile Memories
Jacob Baker maintains CMOSedu.com. There is a large amount of useful material there. Research Links CMOS Circuit Design, Layout, and Simulation, Third Edition – there are files on that page for use with LTSPICE , Cadence etc Setting up ELECTRIC to work with LTSPICE VLSI and ASIC Technology Standard Cell Read more…
SPICE Research Links Instructions how to use the library files with LTSPICE CD4000.lib CD4000.zip
Links Design of an Folded Cascode Operational Amplifier in High Voltage CMOS Technology More SPICE Examples Dr. Lynn Fuller Archive: OTA-Folded-Cascode.7z
Research Links Pulse Generation and Signal Conditioning Circuits LTSPICE Archive: Pulse Lengthener Pulse Generation Circuits Dual edge delay Leading edge delay Trailing edge delay Dual edge detector / frequency doubler Leading edge detector Trailing edge detector
Analog Devices Wiki Research Links AnalogDevicesWiki: Voltage Level Shifters Google: Inverter Level Shifter A slightly different implementation:
XFAB Links FeatureXplorer Summary Sheet: 0.18 μm Process Family: XH018 0.18 Micron Mixed-Signal HV CMOS Technology 0.18 μm Process Family: XH018 0.18 Micron Modular Analog Mixed HV Technology Ambient Light Sensing Made Easy with X-FAB – has photo diode side profiles XHB06 Photo Diode Evaluation Chips – See image below for Read more…
K = k = kilo = 103 ‹ MEG = meg = 106 ‹ G = g = giga = 109 ‹ T = t = terra = 1012 ‹ M = m = milli = 10-3 ‹ U = u = micro = 10-6 ‹ N = n = Read more…