A novel approach to surface electromyography: an exploratory study of electrode-pair selection based on signal characteristics

Table 1 REFA specifications (TMS International)

Parameter	Specification
Input Impedance	> 10¹²
CMRR	> 100 dB
Gain	20 V/V
Noise	1.0μVrms
Anti-Alias Filter	1st order RC filter, cutoff frequency = 6.786KHz
Low Pass Digital Filter	5th order SINC filter, cutoff frequency = 0.2035 * sample frequency
Analog to Digital Converter	22 bit resolution sigma delta

ISSN: 1743-0003