Title :
A 6-bit 3.5-GS/s 0.9-V 98-mW Flash ADC in 90nm CMOS
Author :
Deguchi, Kazuaki ; Suwa, Naoko ; Ito, Masao ; Kumamoto, Toshio ; Miki, Takahiro
Author_Institution :
Renesas Technol. Corp., Itami
Abstract :
A 6-bit 3.5-GS/s flash ADC is fabricated in a 90nm CMOS process. A clamp diode with a replica biasing and an acceleration capacitor are introduced for high-speed overdrive recovery. Averaging network is analyzed to explore the effect of tail current mismatch. The 3.5-GS/s ADC consumes 98mW with 0.9V power supply. Its SNDR is 31.18dB with Nyquist frequency input.
Keywords :
CMOS integrated circuits; analogue-digital conversion; diodes; CMOS process; Nyquist frequency input; acceleration capacitor; clamp diode; flash ADC; high-speed overdrive recovery; power 98 mW; replica biasing; size 90 nm; voltage 0.9 V; word length 6 bit; Acceleration; CMOS process; Capacitors; Circuits; Diodes; Indium phosphide; Preamplifiers; Resistors; Tail; Voltage;
Conference_Titel :
VLSI Circuits, 2007 IEEE Symposium on
Conference_Location :
Kyoto
Print_ISBN :
978-4-900784-05-5
Electronic_ISBN :
978-4-900784-05-5
DOI :
10.1109/VLSIC.2007.4342767
