Patent ID: 9024678
Filing Date: 2015-05-05
Classification: G01R,H02M,H03K

Abstract:
1. An circuit arrangement, comprising: a first transistor, a second transistor and a third transistor configured so that the current flowing in the first transistor is proportional to the current flowing in the second transistor and the third transistor; wherein the second transistor and the third transistor are coupled in series to each other; wherein the first transistor, the second transistor and the third transistor are configured to operate in an ohmic mode; and wherein the first transistor, the second transistor and the third transistor match each other in at least one characteristic; further comprising: a fourth transistor coupled between a first terminal of the third transistor and a first input of the amplifier; and a fifth transistor coupled between a second terminal of the third transistor and a second input of the amplifier; wherein the fourth transistor and the fifth transistor are configured to operate in an ohmic mode.