Floating-gate CMOS differential analog inverter for ultra low-voltage applications

In this paper we present ultra low-voltage (ULV) floating-gate (FG) CMOS differential analog inverters. The analog inverters may operate with a supply voltage below 1 V with programmable current levels. The current level or rather the effective threshold voltage in FG-circuits can be programmed to appropriate values for different applications. The analog inverters presented in this paper may be used in ULV transconductance amplifiers. The effects of power supply noise are thoroughly discussed. Simulated data (Spice) is provided.