US6333707B1 - Dynamic range extension of wideband receiver - Google Patents
US6333707B1 - Dynamic range extension of wideband receiver - Google Patents Dynamic …

4,365,157 A 12/1982 Unsold et al. A high speed analog to digital converter (“ADC) that can
4,540,884 A 9/1985 Stafford et al. be used in a detector system. The ADC is coupled to a …

An analog-to-digital (AWD) converter circuit in which an extracted envelope of an input
signal is used as a reference signal on an analog-to-digital converter, providing a wide …

A monitor that has multiple ioniziation sources that can be switched between different
modes. The monitor may have an electrostatic ionizer and a photoionizer that ionize at …

Abstract Systems and methods for providing analog to digital conversion with improved
dynamic range. Multiple low cost analog to digital converters may be used in parallel to …

It is an object of the invention to obviate or mitigate one or more of the above identified
disadvantages. According to a first broad aspect, the invention provides a digitizer with …

A sigma-delta analog-to-digital (A/D) converter has an analog modulator, and an adjustable
reference voltage circuit that provides a reference voltage to the analog modulator along a …

A signal processing circuit comprising an ADC (5) to which differential signals and pseudo-
differential signals are switched through two multiplexors (8) and (9). Positive input signals …

A detector system that contains two inlet port coupled to a photoionization chamber. One
inlet port allows for the introduction of a test sample. The test sample may contain …

The present invention provides an ADC that is robust enough to allow the use of analog
circuits in the ADC with accuracy falling far Short of the nominal required precision of the …