公开(公告)号：US10139849B2

公开(公告)日：2018-11-27

申请号：US15497051

申请日：2017-04-25

申请人： Honeywell International Inc.

发明人： Xiaoxin Feng ,  Weston Roper

IPC分类号： H03F3/00 ,  G05F3/26 ,  G05F3/16 ,  G05F1/10 ,  G05F3/30 ,  G05F3/24 ,  H03K17/082 ,  H03K19/003 ,  H03K5/00

摘要： The disclosure is directed to a simple, inexpensive circuit to extract the complementary metal-oxide-semiconductor (CMOS) threshold voltage (Vt) from an integrated circuit. The threshold voltage may be used elsewhere in the circuit for a variety of purposes. One example use of threshold voltage is to sense the temperature of the circuit. The CMOS Vt extraction circuit of this disclosure includes a current mirror and an arrangement of well-matched transistors and resistors that takes advantage of the square law equation. The structure of the circuit may make it well suited to applications that benefit from low-power radiation hardened circuits.

公开(公告)号：US20180307262A1

公开(公告)日：2018-10-25

申请号：US15497051

申请日：2017-04-25

申请人： Honeywell International Inc.

发明人： Xiaoxin Feng ,  Weston Roper

IPC分类号： G05F3/24 ,  H03K17/082 ,  H03K19/003 ,  G05F3/26 ,  G05F1/10

CPC分类号： G05F3/242 ,  G05F1/10 ,  G05F3/26 ,  H03K17/0822 ,  H03K19/00384 ,  H03K2005/0028

摘要： The disclosure is directed to a simple, inexpensive circuit to extract the complementary metal-oxide-semiconductor (CMOS) threshold voltage (Vt) from an integrated circuit. The threshold voltage may be used elsewhere in the circuit for a variety of purposes. One example use of threshold voltage is to sense the temperature of the circuit. The CMOS Vt extraction circuit of this disclosure includes a current mirror and an arrangement of well-matched transistors and resistors that takes advantage of the square law equation. The structure of the circuit may make it well suited to applications that benefit from low-power radiation hardened circuits.