Abstract
Current Feedback Operational Amplifier (AD844) uses a circuit design that emphasizes current-mode operation, which is inherently much faster than voltage-mode operation because it is less effected by stray node-capacitances. When fabricated using high-speed complementary bipolar processes, CFOA’s can be orders of magnitude faster than other available feedback amplifiers ex. VFA’s. With CFOAs, the amplifier gain may be controlled independently of bandwidth. All these constitutes the major advantages of CFOAs. Some new and more efficient active RC integrator circuit realizations, using minimum passive components grounded and a current feedback operational amplifier (CFOA) device are proposed. Integrator with Grounded passive components allow better usability in VLSI. Finally, experimental result by wave processing has been verified using Proteus software.
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