A balanced transconductor architecture with a high input common-mode (CM) rejection and capable of operating with low supply voltage is proposed. The novel structure is based on a feedforward cancellation of the input CM signal, implemented with an additional transconductor sensitive only to CM signals. A BiCMOS circuit implementation of the structure is presented. Comparative simulations show that the proposed technique is competitive with the classical fully-differential architecture particularly at high frequency when the CMRR degrades. © 1994, IEE. All rights reserved.
Baschirotto, A., Rezzi, F., Castello, R. (1994). Low-voltage balanced transconductor with high input common-mode rejection. ELECTRONICS LETTERS, 30(20), 1669-1671 [10.1049/el:19941163].
Low-voltage balanced transconductor with high input common-mode rejection
BASCHIROTTO, ANDREA;
1994
Abstract
A balanced transconductor architecture with a high input common-mode (CM) rejection and capable of operating with low supply voltage is proposed. The novel structure is based on a feedforward cancellation of the input CM signal, implemented with an additional transconductor sensitive only to CM signals. A BiCMOS circuit implementation of the structure is presented. Comparative simulations show that the proposed technique is competitive with the classical fully-differential architecture particularly at high frequency when the CMRR degrades. © 1994, IEE. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.