Title :
A programmable pulse UWB transmitter with 34% energy efficiency for multichannel neuro-recording systems
Author :
Miranda, Henrique ; Meng, Teresa H.
Author_Institution :
Electr. Eng. Dept., Stanford Univ., Stanford, CA, USA
Abstract :
This paper describes configurable, 3.6 to 7.5 GHz pulse UWB transmitter IC targeted for neurological implants with high data rate requirements. Each cycle of the RF pulse is digitally programmable in amplitude and duration, enabling a very flexible shaping of the transmitted PSD signal, without the use of an output filter. The transmitter achieves a maximum of 34% of energy efficiency when drawing 8.5 pJ/bit from the supply, with 13 μW of constant static power. This transmitter was implemented in 65nm CMOS and measures 1.0 mm × 0.7 mm. A 32-channel recording experiment using this chip is also reported.
Keywords :
CMOS integrated circuits; neural chips; prosthetics; radio transmitters; ultra wideband communication; CMOS; PSD signal; RF pulse; constant static power; data rate requirements; energy efficiency; multichannel neuro-recording systems; neurological implants; programmable pulse UWB transmitter; pulse UWB transmitter IC; Antenna measurements; Computer architecture; Delay; Driver circuits; Microprocessors; Radio frequency; Transmitters; Ultra-wideband transmitter; programmable UWB waveform; wireless high-rate biotelemetry;
Conference_Titel :
Custom Integrated Circuits Conference (CICC), 2010 IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-5758-8
DOI :
10.1109/CICC.2010.5617608
