Harness, Dickey & Pierce, P.L.C.
On-chip reference current and voltage generating circuits
Provided is an on-chip reference current generating circuit for generating a reference voltage that can be digitally calibrated and is substantially not affected by changes in temperature and/or supply voltage. The on-chip reference current generating circuit includes a summing circuit for receiving a first current having a negative temperature coefficient and a second current having a positive temperature coefficient, and outputting a third current based upon, is a sum of, the first and second currents; and a digital calibration circuit for calibrating the third current to be the reference current in response to a digital control signal. Using the on-chip reference current generating circuit, it is possible to precisely and digitally calibrate an offset between currents due to a change in temperature and/or supply voltage.
Samsung Electronics Co., Ltd.
H G G Y
H01L G05F G05F Y10S
additional inventional inventional additional
Kyoung-ho Jong-bum Hee-seuk Seung-hoon
Moon Park Yang Lee