|
Number of channels
|
32
|
8
|
4
|
5 (+ 3)
|
|
Type of biosignals
|
EMG
|
ECG, EMG
|
EEG, LFP
|
ExG, ECoG, LFP, ERNA, body position and movement, PV ectopic activity (+ amperometric/potentiometric)
|
|
Voltage gain
|
46 dB
|
≈ 28 dB (max)
|
≈ 54 dB
|
60 dB
|
|
Input voltage range
|
±5 mV
|
±100 mV
|
±1.15 mV
|
±2.3 mV
|
|
Maximum available bandwidth
|
10–500 Hz
|
0–250 Hz
|
1.5–100 Hz
|
0.5–500 Hz
|
|
Input impedance
|
1.3 GΩ (10 Hz)
|
≈ 620 MΩ (10 Hz)
|
47 kΩ (10 Hz)
|
≈ 8 GΩ (10 Hz)
|
|
Input referred noise
|
< 3 μV rms
|
0.2 μV rms (0–250 Hz)
|
≈ 0.606 μV rms (1.5–100 Hz)
|
0.169 μV rms (0.5–500 Hz)
|
|
CMRR
|
82 dB
|
110 dB
|
–
|
134 dB
|
|
Maximum resolution of the ADC
|
16 bits
|
24 bits
|
16 bits
|
24 bits
|
|
Maximum sampling frequency
|
2048 SPS
|
500 SPS (16 kSPS for wired)
|
500 SPS
|
1 kSPS (32 kSPS for wired)
|
|
Hours of continuous operation
|
5 (600 mAh 1-Cell LiPo battery)
|
13.6 (1700 mAh battery)
|
6 to 8 (CR1/3 N lithium ion button-cell battery)
|
8 (1 Ah lithium battery)
|
|
Wireless capability
|
Yes (Wi-Fi)
|
Yes (Bluetooth)
|
Yes (2.4 GHz MSK)
|
Yes (Zigbee)
|
|
Latency
|
12 ms
|
–
|
–
|
1 ms
|
|
Max. transmission range
|
22 m
|
10 m
|
3–5 m
|
5 m
|
|
Area (length × width)
|
10.2 cm2
|
21.7 cm2 (PCB area)
|
4.76 cm2
|
44 cm2 (PCB area)
|
