Abstract
This paper presents a 3rd order switched current Sigma-Delta
modulator. The Sigma-Delta modulator operates at a sampling rate
of 600kHz and the signal band is 5.5kHz, i.e. an oversampling
factor of 54.5 is used. Multiple input signals are used to reduce
the internal signal swings which results in reduced power
consumption. The shaping of the noise from the 2nd and 3rd
integrator is used to allow the noise power from these integrators
to be increased to further save power. The total power consumption
is approximately 2.5mW with a supply voltage of 3.3V. The maximum
SNR is approximately 74.5dB.
Original language | English |
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Title of host publication | Proc. 14th NORCHIP Conference |
Place of Publication | Copenhagen |
Publisher | Technoconsult |
Publication date | 1996 |
Pages | 89-96 |
Publication status | Published - 1996 |
Event | 14th NORCHIP Conference - Helsinki, Finland Duration: 4 Nov 1996 → 5 Nov 1996 |
Conference
Conference | 14th NORCHIP Conference |
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Country | Finland |
City | Helsinki |
Period | 04/11/1996 → 05/11/1996 |