Patent ID: 9178515
Filing Date: 2015-11-03
Classification: H03K

Abstract:
1. A circuit comprising: a bias circuit configured to establish a first bias current; a first level device coupled to the bias circuit, wherein the first bias current passes through the first level device to establish an operating point of the first level device, the first level device being an active device; a plurality of N second level devices coupled to the bias circuit through the first level device, at least one of the second level devices being an active device, wherein the first bias current is split into N portions, and each one of the N portions passes through one of the plurality of N second level devices to establish an operating point of the at least one active device of the plurality of second level devices; and a plurality of M third level devices coupled to the bias circuit through the first level device and one or more of the second level devices, at least one of the third level devices being an active device, wherein one of the N portions is split into M portions, and each one of the M portions passes through one of the M third level devices to establish an operating point of the at least one active device of the plurality of third level devices.