An 8 MHz, 80 Ms/s switched-current filter

Author

Hughes, J.B. ; Moulding, K.W.

Author_Institution

Philips Res. Lab., Redhill, UK

fYear

1994

fDate

16-18 Feb. 1994

Firstpage

60

Lastpage

61

Abstract

Since its introduction in 1989, the switched-current (SI) technique for sampled-data signal processing has claimed the advantage over switched-capacitors of needing only digital CMOS processing, making it cheaper and more amenable to mixed-signal ICs. Attempts to raise the performance to match that of switched-capacitors has had mixed success, and some silicon implementations have been reported. A recent advance, called S/sup 2/I, promises the highest overall performance yet. This paper demonstrates that switched current filters can not only compete with switched-capacitors and use simpler IC processing but also perform well with sampling frequencies of at least 80 MHz.<>

Keywords

CMOS integrated circuits; active filters; mixed analogue-digital integrated circuits; switched filters; 8 MHz; 80 MHz; IC processing; S/sup 2/I technology; cut-off frequency; mixed-signal ICs; sampled-data signal processing; sampling frequencies; switched-current filter; Attenuation; CMOS digital integrated circuits; CMOS technology; Circuits and systems; Cutoff frequency; Filters; Performance gain; Sampling methods; Signal processing; Switching circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 1994. Digest of Technical Papers. 41st ISSCC., 1994 IEEE International

Conference_Location

San Francisco, CA, USA

Print_ISBN

0-7803-1844-7

Type

conf

DOI

10.1109/ISSCC.1994.344726

Filename

344726