Cadence Tutorial Current Mirror
In above wilson current mirror circuit there are three active components which are bjts and a single resistor r1.
Cadence tutorial current mirror. Hafeez kt 33 136 views. Put an ideal vdc there with the desired value for nm0 s vds and resimulate. This tutorial will demonstrate the basic idea of a current mirror which is widely used in integrated circuits. Hafeez kt 85 835 views.
Current mirror examples proper scaling bipolar current mirrors duration. Dc analysis and dc sweep in cadence duration. The current source will force current to the diode connected. Current mirror simulation in cadence the right transistor nm0 is not biased at the drain node vds 0 as indicated from your plots so no dc current can flow there.
Wilson current mirror circuit uses three active devices that accept the current across its input and provide the exact copy or mirrored copy of the current to its output. The simple two transistor implementation of the current mirror is based on the fundamental relationship that two equal size transistors at the same temperature with the same v gs for a mos or v be for a bjt have the same drain or collector current. To best understand this important circuit building. Download pspice and try it for free.
Cadence virtuoso simulation of basic current mirror how to simulate current mirror cadence simulation of current mirror. The implementation of the current mirror circuit may seem simple but there is a lot going on.