IEEE经典老论文（1980）A Precision CMOS Bandgap Reference

semico_ljj

IEEE经典老论文（1980）A Precision CMOS Bandgap Reference
by
JOHN MICHEJDA AND SUK K. KIM
Abstract —This paper describes the design of a precision on-chip bandgap
voltage reference for applications with CMOS analog circuits. The
circuit uses naturally occurring vertical n-p-n bipolar transistors as reference
diodes. P-tub diffusions are nsed as temperature-dependent resistors
to provide current bias, and an op-amp is used for voltage gain. The circuit
is simple. Only two reference diodes, three p-tub resistors, and one op-amp
are necessary to produce a reference with fixed voltage of – 1.3 V. An
additional op-amp with two p-tnb resistors will adjust the output to any
desired value.
The criteria for temperature compensation are presented and show that
the properly compensated circuit can in principle produce thermal drift
which is less than 10 ppm/” C. Process sensitivity analysis shows that in
practical applications it is possible to control the output to better’ than 2
percent, while keeping thermal drift below 40 ppm/°C. Test circuits have
been designed and fabricated. The output voltage produced was – 1.30 ~
0.025 V with thermal drift less than 7 mV from 0° C to 125° C. Significant
improvements in performance, at modest cost in circuit complexity, can be
achieved if the op-amp offset contribution to the output voltage is reduced
or eliminated.

本文体现了绝好的经典带隙设计思想

semico_ljj

本文体现了绝好的经典带隙设计思想！

semico_ljj

看来学好英文很重要啊！

semico_ljj

来瞧瞧！！

milk

xia lai kan kan

Avalon

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moonfull

呵呵，好东西要学习！

semico_ljj

自己的东东自己顶！！！

wangyz126

是经典呀，看过了

asueee

classic!!!