Data Sheet
AD5940
40
0.3
0.2
20
0
0.1
–20
–40
–60
–80
–100
0
–0.1
–0.2
–0.3
SE0 = 200mV
SE0 = 1100mV
SE0 = 2100mV
BOARD1 ERROR
BOARD2 ERROR
BOARD3 ERROR
–120
–140
100k
300k
500k
800k
1M
2M
4M
8M
10M
–40
25
60
85
IMPEDANCE (Ω)
TEMPERATURE (°C)
Figure 11. Low Power TIA Input Bias Current (IBIAS) vs. Temperature
Figure 13. Electrodermal Activity (EDA) Measurement Relative Error
vs. Impedance
2
0
–2
–4
–6
–8
–10
–12
RE0 = 200mV
RE0 = 1100mV
RE0 = 2100mV
–14
–16
–40
25
60
85
TEMPERATURE (°C)
Figure 12. Low Power Potentiostat
Input Bias Current vs. Temperature
Rev. 0 | Page 21 of 130
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