The design of an operational amplifier is discussed and theoretical values of stage gains for maximum bandwidth are deduced. A practical circuit is de scribed in which these theoretically desirable stage gains are achieved.
The result is an amplifier with a bandwidth about two orders greater than is commonly attained, which, furthermore, is the best performance that may reasonably be realized with the valves that are employed.
The amplifier, together with a high-speed multi plier, forms the basis of the Fast Analogue Com puting Equipment (FACE) developed at the National Physical Laboratory.
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References
1.
Bode, H.W.Network Analysis and Feedback Amplifier Design( D. Van Nostrand Co. Ltd.).
