Multiple-output CMOS weak inversion voltage reference of high PSRR
Xiaojuan Xia · Electronic Design Engineering · 2009
A CMOS voltage reference with multiple-output,high power supply rejection ratio(PSRR)and low temperature coefficient(TC)is presented.It is based on subthreshold MOSFETs and CMOS current-mode structure.Pre-regulator and improved voltage reference core of the circuit are proposed.The circuit,designed and simulated in CSMC standard 0.5μm CMOS technology,exhibits PSRR of 122dB at low frequency and TC of 7ppm/℃ for the range of 0～100℃.