Title :
2-μm, 1.6-mW gated-gm sampler with 72 dB SFDR at 160 Ms/s and 320.25-MHz fin
Author_Institution :
Analog Devices Inc., Wilmington, MA
Abstract :
The sampler is often the limitation in determining how early in the signal chain the conversion to discrete time can be done. We have fabricated a high-speed, wideband sampler based upon a charge-domain gated-gm cell that has a measured SFDR of 72 dB at 160 Ms/s and 320.25-MHz input frequency. This performance is achieved at 2% of the power and 4% of the area of a recently-released high-performance but slower sampler. Simulations indicate that far higher performance is possible in a more optimized circuit
Keywords :
analogue-digital conversion; circuit optimisation; discrete time systems; signal processing equipment; 1.6 mW; 2 micron; 320.25 MHz; SFDR; charge-domain gated-gm cell; discrete-time signal processing; input frequency; optimized circuit; wideband sampler; Apertures; Application specific integrated circuits; CMOS technology; Charge coupled devices; Circuit simulation; Circuit testing; Clocks; Electrodes; MOSFET circuits; Voltage;
Conference_Titel :
Custom Integrated Circuits Conference, 1997., Proceedings of the IEEE 1997
Conference_Location :
Santa Clara, CA
Print_ISBN :
0-7803-3669-0
DOI :
10.1109/CICC.1997.606586
