At IZ = 7.5 mA the 1N827 thermally compensated Zener diode gives VZ = 6.2 V ± 5% and TC(VZ ) = 10 ppm/◦C. (a) Using this diode, along with an op amp having TC(VOS) = 5 μV/◦C, design a 10.0-V self-regulated reference with provision for the exact adjustment of VO . (b) Estimate the worst-case change in VO for a temperature variation of 0 ◦C to 70 ◦C.
At IZ = 7.5 mA the 1N827 thermally compensated Zener diode gives VZ = 6.2 V ± 5% and TC(VZ ) = 10 ppm/◦C. (a) Using this diode, along with an op amp having TC(VOS) = 5 μV/◦C, design a 10.0-V self-regulated reference with provision for the exact adjustment of VO . (b) Estimate the worst-case change in VO for a temperature variation of 0 ◦C to 70 ◦C.
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