Simulate and evaluate a low power multi-stage operational amplifier to drive a capacitive and resistive load based on appropriate TSMC 0.18 μm CMOS

The amplifier must achieve the following specifications:
1. AC input signal range = 10 mVpeak – 20 mVpeak
2. Power supply = 1.8 V
3. Total power consumption < 200 μW
4. Gain ~ 33 dB
5. Cut off frequency ~ 600 kHz
6. Phase margin > 70 ̊
7. Power supply rejection > -30 dB at 200 kHz
8. The output is able to drive a 1 pF capacitive load and 800 Ω resistive load.

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Abdullah Azmat 1
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