TABLE II.

Comparison of State-of-the-Art Wireless Neural Recording Systems

Ref	Type	Mode Tested	Amp BW Hz	Noise μVrms	Res Bits	S/ch ksps	# Ch	Data rate Mbps	Power mW	Size mm	Tx
(Chae, et al., 2009) [19]	Chip	Bench	0.1, 200–2.2k configurable	4.9	6–9	2	128	90	6	8.8×7.2	UWB
(Harrison, et al., 2009) [13]	Chip	Bench	250–5k	5.0	10	15	100	0.345	10	5.4×4.7	902/928 FSK
(Shahrokhi, et al., 2010) [20]	Chip	Bench	10–5k	6.08	8	14	128	n.a.	9.33(Rec. +Stim.)	3.4×2.5	n.a.
(Gao, et al., 2012) [11]	External	Bench	<1–10k, 280–10k	2.2	10	31.25	96	30	30(IC+Tx+FPGA)	5×5(IC)	UWB
(Greenwald, et al., 2010) [18]	External	Rodent	n.a.-8.2k	1.94	10	16	16	0.256(IC) 1 (UWB)	15.84	24000mm3	UWB
(Miranda, et al., 2010) [10]	External	Primate 3 month	<1–4.5k	5.0	12	30	32	24	142	38×38×51	3.7/4.1GHz FSK
(Yin, et al., 2010) [17]	External	Rodent	1–8.8k configurable	4.9	8	20	32	2.56	5.6	n.a.	898/926MHz FSK
(Szuts, et al., 2011) [21]	External	Rodent 1hr	10–4.5k configurable	3.64	Analog	20	64	10	645	n.a.	2.38GHz FM
(Sodagar, et al., 2009) [22]	External	Guinea Pig	<100–10k configurable	8.87	8	7.8	64	2	14.4	14.4×15.5	70 – 200MHz OOK
(Rizk, et al., 2007) [13]	External	Rodent	500–8k	n. a.	12	31.25	96	1	100	50×40×15	916.5 MHz ASK
(Rizk, et al., 2009)[14]	Implanted	Sheep 3hrs	n.a.	7	12	31.25	96	n.a.	2000	50×40×15	916.5 MHz ASK
(Rouse, et al., 2011)[12]	Implanted	Primates	DC-500 configurable	1(5Hz band)	n.a.	n.a	4	0.0117	0.04	n.a.	175kHz
This work	Implanted	Swine & Primate >14 months	0.1–7.8k configurable	8.05/2.83	12	20	100	48 Manchester encoded	90.6	52×46×11	3.2/3.8 GHz FSK