Patent ID: 6909328

Claim:
A device for converting a differential signal to a single signal, the device comprising: at least one pair of transistors having equal transconductance gain, that are arranged according a differential stage configuration, for receiving a differential signal at drivable terminals; first non-drivable terminals coupled respectively to first terminals of a first and a second passive elements having second terminals connected with a first supply voltage; and second non-drivable terminals coupled to a second supply voltage, the first supply voltage being higher than the second supply voltage and the first terminal of the second passive element being the output terminal of the device, and comprising a further transistor having a first non-drivable terminal connected with the output terminal of the device, a second non-drivable terminal coupled with the second supply voltage and a drivable terminal connected with, and drivable from, the first terminal of the first passive element, the further transistor having such a transconductance gain that the product of the transconductance gain by the first passive element is unitary.