Device for amplifying and sampling high dynamic signals

Details Device for amplifying and sampling high dynamic signals Device for amplifying and sampling high dynamic signals

1987-01-13

1988-10-18

Mullins, James B.

Amplifiers

Combined with automatic amplifier disabling switch means

330 86, 330129, 330151, 330278, 330282, 367 67, H03G 320

Patent

active

047790555

ABSTRACT:
A device is provided for amplifying and sampling signals in an acquisition chain before application thereof to an analog-digital converter and in particular multiplexed signals. It includes two blocking samplers to which a gain of 1, 2 or 16 for the first one and a gain of 2 or 16 for the second one may be applied by selective closure of switches. A switch allows either the input signal or the signal from the second sampler to be applied to the first sampler. Another switch allows the outputs of one or other of the samplers to be connected to the input of a voltage comparator. By a very limited number of comparison steps, gain modifications and possible relooping of the output to the input of the device for one or more reamplifications, an input signal may be given any gain between 2.sup.0 and 2.sup.13.

REFERENCES:
patent: 4378527 (1983-03-01), Beauducel et al.
patent: 4426624 (1984-01-01), Beauducel et al.

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