Abstract
Due to the absence of internal nodes, inverter-based Gm-C filters [1,2] allow achieving bandwidths beyond what is possible with opamp-RC techniques. The class-AB behavior of the inverter, together with the high transconductance for a given quiescent current, results in a high dynamic range for a given power consumption when optimally biased [3]. The major disadvantage of traditional inverter-based Gm-C filters is that they are tuned with the supply voltage, VDD, and hence require a finely controllable supply. Voltage regulators used to accomplish this require a voltage headroom (including margin for tuning) and degrade total power efficiency by tens of percent. In this paper, we show that by exploiting body biasing in an ultra-thin buried oxide (BOX) and body, fully-depleted SOI (UTBB FD-SOI) CMOS technology, we overcome the requirement for a tunable VDD in inverter-based Gm-C filters, while achieving high linearity over a wide supply voltage range.
Original language | English |
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Title of host publication | IEEE International Solid- State Circuits Conference, ISSCC 2015 |
Place of Publication | Picataway, NJ |
Publisher | IEEE |
Pages | 96-98 |
Number of pages | 3 |
ISBN (Print) | 978-1-4799-6223-5 |
DOIs | |
Publication status | Published - 23 Feb 2015 |
Event | IEEE International Solid- State Circuits Conference, ISSCC 2015 - San Francisco, United States Duration: 22 Feb 2015 → 26 Feb 2015 |
Conference
Conference | IEEE International Solid- State Circuits Conference, ISSCC 2015 |
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Abbreviated title | ISSCC |
Country/Territory | United States |
City | San Francisco |
Period | 22/02/15 → 26/02/15 |
Keywords
- EWI-25948
- IR-95676
- METIS-312560