dc.contributor.advisor | Ytterdal, Trond | nb_NO |
dc.contributor.advisor | Constandinou, Timothy | |
dc.contributor.author | Haaheim, Bård | nb_NO |
dc.date.accessioned | 2014-12-19T13:46:57Z | |
dc.date.accessioned | 2015-12-22T11:45:46Z | |
dc.date.available | 2014-12-19T13:46:57Z | |
dc.date.available | 2015-12-22T11:45:46Z | |
dc.date.created | 2011-10-28 | nb_NO |
dc.date.issued | 2011 | nb_NO |
dc.identifier | 452319 | nb_NO |
dc.identifier | ntnudaim:6286 | |
dc.identifier.uri | http://hdl.handle.net/11250/2370328 | |
dc.description.abstract | This thesis presents an ultra-low-power 8-bit asynchronous current-modesuccessive approximation (SAR) ADC for single channel neuron spike recording.The novel design exploits current mode operating in weak inversion forhigh power efficiency and is designed to operate at a 1.8V supply. The ADC isrunning at a 16kHz sampling frequency using under 1uW of power, thoughis adjustable using the featured calibration registers. A finished layout ispresented, occupying less than 0.078mm2. Linear operation through mismatchand process variations is obtained using a current calibration circuitconnected to both the current mode DAC and all the biases. This ensuresINL < 0.5 and DNL < 1, yielding no missing codes and a 3sigma productionyield. Calibration is needed because of the relatively large mismatch causedby sub-threshold operation of the current mirrors. The design also offers anewly developed current comparator with high resolution and fast settlingrelative to the current level and is completable with other state-of-the-art solutions,though still feature some voltage scaling issues left for future work. | nb_NO |
dc.language | eng | nb_NO |
dc.publisher | Institutt for elektronikk og telekommunikasjon | nb_NO |
dc.subject | ntnudaim:6286 | no_NO |
dc.subject | MTEL elektronikk | |
dc.subject | Analog og blandet design | |
dc.title | A sub-1µW, 16kHz Current-Mode SAR-ADC for Neural Spike Recording | nb_NO |
dc.type | Master thesis | nb_NO |
dc.source.pagenumber | 113 | nb_NO |
dc.contributor.department | Norges teknisk-naturvitenskapelige universitet, Fakultet for informasjonsteknologi, matematikk og elektroteknikk, Institutt for elektronikk og telekommunikasjon | nb_NO |