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. Author manuscript; available in PMC: 2017 May 10.

Published in final edited form as: IEEE J Solid-State Circuits. 2014 Nov;49(11):2705–2719. doi: 10.1109/JSSC.2014.2359219

Table III.

Comparison to Other CMOS Microelectrode Arrays

Reference		[18]	[16]	[19]	This work
Type		Active Pixel	Active Pixel	Switch Matrix	Switch Matrix
Technology		0.5 μm	0.35 μm	0.6 μm	0.35 μm
Supply Voltage		5 V	3.3 V	5 V (3.3 V digital)	3.3 V
Sensing Area		2.60 mm²	7.13 mm²	3.50 mm²	8.09 mm²
No. Transducers		32768	4096	11016	26400
Pixel Pitch		8.775 μm	42 μm	17.8 μm	17.5 μm
Transducers/mm²		12987	567	3150	3265
No. Channels		32768	4096	126	1024
A/D Conversion		128 pipeline	off-chip	16 SAR	single-slope
ADC resolution		9 bit	–	8 bit	10 bit
Frame Rate		2.4 kS/s ^†	8 kS/s ^†	20 kS/s ^†	20 kS/s
Input Noise	Total	–	26 μV_rms ^‡	2.4 μV_rms ^‡ (1 Hz-10 kHz)	5.9 μV_rms (1 Hz-10 kHz)
	LFP band	–	–	–	5.4 μV_rms (1 Hz-300 Hz)
	AP band	–	–	–	2.4 μ V_rms (300 Hz-10 kHz)
Stimulation		–	–	V/I	V/I
Total Power		4 W	132 mW	135 mW	75 mW

^†

When reading out all channels.

^‡

Recording amplifiers only, excluding ADC.