. Author manuscript; available in PMC: 2015 Sep 21.

Published in final edited form as: IEEE Trans Biomed Eng. 2008 Nov;55(11):2628–2634. doi: 10.1109/TBME.2008.2001264

TABLE III.

RECORDING CHIP PERFORMANCE COMPARISON

	This Work	[18]	[19]
Neurochemical Sensing Modality	Amperometry	Amperometry	Amperometry
# of Channels	1	16	16
Communication Scheme	FSK (Uplink)	Wired	Wired
Power Supply	±1.3V	−2V; 7V	3V
Current Resolution	~250fA^ in ±5nA ~1.5pA^ in±37nA ~17pA^** in ±600nA	46pA in ±50nA lnAin±500nA (12-kHz BW)	100fA in ±8pA (<0.1-HzBW) 15.3pAin±500nA (15-Hz BW)
Power Consumption (per channel)	57μW	780μW	4.3μW (±8pA Range) 48.3μW (±500nA Range)
Technology	0.5μmCMOS	1.2μm BiCMOS	0.5μmCMOS

^**

See Section IV-A.