Design and Analysis of a Novel High Performance Bandgap Reference
Guojun Zhang · 2009
A novel piecewise-linear compensated bandgap reference source was presented.In this circuit,relationship of bandgap voltage with bipolar transistor's on-voltage was utilized to obtain compensated voltage in high temperature range.With PSR,line regulation,loop stability,power dissipation and chip area taken into consideration,the circuit was optimized for engineering application.Results from simulation based on BiCMOS process indicated that the circuit had a VREF of about 1.169 V,a temperature coefficient of 2.1×10-6/℃,a PSR of 63 dB @ 1 kHz at room temperature,and a power dissipation of 70 μW with 3 V supply voltage.