Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Nonlinear amplifying circuit
Patent
1997-05-14
1998-12-08
Tran, Toan
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
Nonlinear amplifying circuit
327 63, 327 65, 330311, 330253, H03K 522, G06G 712
Patent
active
058475982
ABSTRACT:
This invention is directed to providing a differential amplifier that can increase voltage gain at low frequency and that can be applied in signal processing circuits of high accuracy. Such a differential amplifier is provided in its output section with field effect transistor M5 having its source terminal connected to power terminal 4, its gate terminal connected to bias power terminal 7, and its drain terminal connected to the drain terminal of field effect transistor M3; and field effect transistor M6 having its source terminal connected to power terminal 4, its gate terminal connected to the drain terminals of field effect transistors M3 and M5, and its drain terminal connected to output terminal 3 and the drain terminal of field effect transistor M4.
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David B. Ribner et al., "Design Techniques for Cascoded CMOS Op Amps with Improved PSRR and Common-Mode Input Range", IEEE Journal of Solid-State Circuits, vol. SC-19, No. 6, Dec. 1984.
"Les amplis op montent en frequence et diminuent en bruit", pp. 30-31, Electronique, No. 34, Jan. 1, 1994.
NEC Corporation
Tran Toan
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