ECL TO CMOS LEVEL CONVERTER

WIPO Patent Application WO2003055069

A3

A CMOS ECL input buffer buffers signals from an ECL circuit to a CMOS circuit. The CMOS ECL input buffer has a CMOS differential amplifier. A CMOS input circuit is coupled between a buffer input that receives the ECL circuit and a first input of the CMOS differential amplifier. The CMOS input circuit couples an input signal to the first input of the CMOS differential amplifier, and the input signal has an input voltage swing. A reference circuit provides a reference to a second input of the CMOS differential amplifier. The reference is nominally set at substantially a midpoint of the input voltage swing. A CMOS output circuit is coupled between the output of the CMOS differential amplifier and the buffer output, and is arranged to provide an output signal to the buffer output. The output signal, in response to the CMOS differential amplifier, swings between a typical CMOS positive source voltage and ground as the input signal traverses the reference.

JP5690469	Differential amplifier, reference voltage generation circuit, differential amplification method and reference voltage generation method
JPH11214934	BUFFER-USED INTEGRATED CIRCUIT HAVING LEVEL SHIFTING FUNCTION

FULKERSON DAVID E

PCT/US2002/038302

January 29, 2004

December 02, 2002

Click for automatic bibliography generation  

HONEYWELL INT INC (US)

H03K19/0185; (IPC1-7): H03K19/0185

US5585743A	1996-12-17
US4453095A	1984-06-05
US4563601A	1986-01-07
US5283482A	1994-02-01
US4437171A	1984-03-13

View/Download PDF      PDF Help

Previous Patent: ANALOGUE SYSTEM OF GENERATING QUADRATURE SIGNALS

Next Patent: CIRCUIT ARRANGEMENT FOR THE PROVISION OF AN OUTPUT SIGNAL WITH ADJUSTABLE FLANK PITCH