. Author manuscript; available in PMC: 2019 Aug 1.

Published in final edited form as: J Neural Eng. 2018 Aug 1;15(4):046032. doi: 10.1088/1741-2552/aac810

Table 2.

Benchmarking of the wireless µLED-based neural interface systems

Parameters	[20]	[23]	[24]	[25]	[26]	This work
Technology	COTS	COTS	COTS	COTS	COTS	COTS
Power source	Battery	Battery	Battery	Battery	Battery	Battery
Standby power	119 mW	NA	NA	NA	NA	42 mW
No. of stim.	32-ch, 1-ch (test)	2 channels	1 channel	2/3 channels	4 channels	4 channels
Stim. current	150 mA	20 mA	25 mA	20 mA	NA	30 mA
No. of recording	32-ch, 8-ch (test)	NA	NA	NA	NA	2 channels
Data link	2.4 GHz RF transceiver	2.4 GHz RF transceiver	2.4 GHz RF transceiver	Infrared interrogation	Infrared interrogation	2.4 GHz RF transceiver
Device size	18×17×10 mm³ w/o BAT	14×17×5 mm³ w/ BAT	12×11×7 mm³ w/ BAT	14×14×10 mm³ w/ BAT	NA	15×20×20 mm³ w/ BAT
Device weight	4.9 g w/ BAT	2.9 g w/BAT	1.6 g w/BAT	2.4 g w/BAT	1.8 g w/BAT	5.5 g w/BAT
Animal subject	Rat	Mouse	Mouse	Mouse	Mouse	Rat
Freely moving	No	Yes	Yes	Yes	Yes	Yes
Implant duration	NA	41 days	>5 days	NA	>1 week	21 days