5. CMOS Operational Amplifiers - IMS

5. cmos Operational AmplifiersAnalog design for cmos vlsi SystemsFranco Maloberti5. cmos Operational Amplifiers1 analog design for cmos vlsi SystemsFranco MalobertiBasic op-ampThe ideal Operational amplifier is a voltage controlledvoltage source with infinite gain, infinite input impedanceand zero output op-amp is always used in feedback cmos Operational Amplifiers2 analog design for cmos vlsi SystemsFranco MalobertiTypical feedback configuration V0=V2Z4Z3+Z4Z1+Z2Z1 V1Z2Z1 The error due to the finite gain is proportional to 1 / A0. Thiserror must be smaller than the error due to impedancemismatch.

Analog Design for CMOS VLSI Systems Franco Maloberti Input offset voltage: In real circuits if the two input terminals are set at the same voltage the output saturates close to VDD or to VSS. Input common mode range: It is the maximum range of the common-mode input voltage which do not produce a significant variation of the differential gain.

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  System, Design, Analog, Cmos, Vlsi, Analog design for cmos vlsi systems

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