Title:
CMOS CIRCUIT FOR GENERATING REFERENCE CURRENT
Document Type and Number:
Japanese Patent JP3181898
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a reference current generation circuit independent of not only changes in power supply voltage and temperature but also technical processes.
SOLUTION: A reference current generator includes a pair of identical units G1, G2 for generating respective reference currents and a circuit CL for linearly connecting two references. Each of elements S1, S2 for determining respective operation points by current-voltage characteristics in respective units G1, G2 includes a single transistor(TR) T1 and a pair of TRs T2, T3 belonging to the same type as the TR T1 and connected in series. A differential amplifier AD stably maintains the operation points of respective units G1, G2 when power supply voltage is changed.
Inventors:
Emanuele Ballistreli
Marco Burcio
Marco Burcio
Application Number:
JP28288799A
Publication Date:
July 03, 2001
Filing Date:
October 04, 1999
Export Citation:
Assignee:
Kuselto-Centro Steuday e Laboratory Telecominico Minicaccioni Esset Pear
International Classes:
G05F3/26; H03F1/30; H03L7/089; G05F3/24; (IPC1-7): G05F3/26; H03F1/30
Domestic Patent References:
| JP7129265A |
Attorney, Agent or Firm:
Kazuho Kawarada