Title :
A Low-Power 4GHz Comparator in 120nm CMOS Technology with a Technique to tune Resolution
Author :
Goll, Bernhard ; Zimmermann, Horst
Author_Institution :
Inst. of Electr. Measurements & Circuit Design, Vienna Univ. of Technol.
Abstract :
This paper presents a comparator with the capability of a high decision speed, but static power consumption was avoided. Furthermore the circuit implements a technique to enhance resolution while keeping the ability of a high switching speed. During the reset phase the comparator is pulled to ground level, which defines a logic voltage level. A test chip with the comparator was manufactured in a 120nm CMOS technology with a supply-voltage of 1.5V. For a bit-error-rate (BER) of 10-9 the presented comparator is able to detect 11.2mV at 2GHz, 20mV at 3GHz, 26mV at 3.5GHz and 118mV at 4GHz. The power consumption was 788muW at 3.5GHz and 812muW at 4GHz
Keywords :
CMOS integrated circuits; analogue-digital conversion; comparators (circuits); low-power electronics; 1.5 V; 11.2 mV; 118 mV; 120 nm; 2 GHz; 20 mV; 26 mV; 3 GHz; 3.5 GHz; 4 GHz; 788 muW; 812 muW; CMOS technology; high switching speed; logic voltage level; low-power comparator; resolution enhancement; CMOS technology; Circuits; Energy consumption; Inverters; Latches; Paper technology; Power supplies; Switches; Variable structure systems; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 2006. ESSCIRC 2006. Proceedings of the 32nd European
Conference_Location :
Montreux
Print_ISBN :
1-4244-0303-0
DOI :
10.1109/ESSCIR.2006.307595
