Electronic circuit comprising complementary transconductors for filters and oscillators

An electronic circuit comprises coupled transconductors (TR1 and TR2). The transconductors comprise two complementary differential pairs whose outputs are connected directly to two output terminals. Two diodes (P3, N3) are arranged in series between the common terminals of the differential pairs. Th...

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Bibliographische Detailangaben
Hauptverfasser:	VEENSTRA, HUGO, VOORMAN, JOHANNES O
Format:	Patent
Sprache:	eng
Schlagworte:	AMPLIFIERS BASIC ELECTRONIC CIRCUITRY ELECTRICITY GENERATION OF NOISE BY SUCH CIRCUITS GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING,BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN ANON-SWITCHING MANNER IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS RESONATORS
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Beschreibung
Zusammenfassung:	An electronic circuit comprises coupled transconductors (TR1 and TR2). The transconductors comprise two complementary differential pairs whose outputs are connected directly to two output terminals. Two diodes (P3, N3) are arranged in series between the common terminals of the differential pairs. The common-mode voltage of the differential pairs is available on the node between the two diodes. The common-mode voltage of the one transconductor (TR2) is used to control one of the bias current sources of the other transconductor (TR1) and, if desired, also that of the one transconductor (TR2). In this way the common-mode voltage on the output terminals of the other transconductor (TR1) is fixed.