Skip to main content

Table 1 REFA specifications (TMS International)

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

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