Amplifier Structure for High Gain and Fast Settling Applications
نویسندگان
چکیده
High gain amplifiers with fast settling times are needed for high-speed data converter applications. A cascaded amplifier architecture is discussed that can make use of several architecturally identical amplifies to achieve the desired gain. Only one of the amplifiers has a gainbandwidth product requirement that is modestly higher than the rest to keep the overall structure stable in the presence of negative feedback. The performance of a three-amplifier cascade is compared with that of single amplifier performance for applications at the 10 – 22 bit level range when used as an inverting amplifier with a gain of –1.
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