Title :
On-chip tunable wide ranged multiple output voltage reference
Author :
Kapur, Garima ; Markan, C.M. ; Pyara, V.P.
Author_Institution :
VLSI Design Technol. Lab., Dayalbagh Educ. Inst., Agra, India
Abstract :
We presents an on-chip tunable wide ranged multiple output CMOS voltage reference based on non-volatile highly precise field programmable floating gate transistors. The reference is outfit for both sub 1V and above 1V applications. The circuit design consists of basic beta multiplier configuration and offers a strategy of making the current sourcing circuit and reference generating circuit as independent units. A simulation model of the circuit was built in T-Spice, 0.35μm CMOS process. Simulation results show high amount of temperature insensitivity for a large range of thermal conditions. The reference voltage variation is about 1.65mV/°C to 1.67mV/°C over wide temperature range of -40 to 140°C; has an impressive static supply dependency of 125μV/V for a reference of 280mV. The circuit can also be operated at very low supply voltage (0.5v).
Keywords :
CMOS integrated circuits; SPICE; circuit tuning; constant current sources; integrated circuit design; reference circuits; voltage multipliers; CMOS voltage reference; T-Spice; beta multiplier configuration; circuit design; current sourcing circuit; field programmable floating gate transistor; impressive static supply; on-chip tunability; reference generating circuit; simulation model; size 0.35 mum; temperature insensitivity; thermal condition; voltage 1 V; voltage 280 mV; CMOS integrated circuits; Programming; Resistors; Semiconductor device modeling; Temperature dependence; Threshold voltage; Transistors; Bets Multiplier; Field Programmable; Floating Gates; Multiple outputs; Voltage reference;
Conference_Titel :
Southeastcon, 2012 Proceedings of IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-1374-2
DOI :
10.1109/SECon.2012.6196981
