A novel reference circuit with simple structure is presented.In this circuit
the output 5V reference voltage by multiplying the band-gap voltage is used directly as the chips secondary power supply without voltage conversion circuit.In the circuit design
drive circuit is utilized to enhance the drive capability and temperature characteristics
PSRR
loop stability is improved by temperature compensation
isolation technology and feedback.Resultsfrom simulation with Hspice based on 0.35m BCD process indicated that the circuit has a output voltage reference of 5V