AD5941 datasheet(23/134 Pages) AD

Part #	AD5941

Description	High Precision, Impedance, and Electrochemical Front End

PDF	134 Pages

Scroll/Zoom	100%

Manufacturer	AD [Analog Devices]

Direct Link	http://www.analog.com

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23 / 134 page

Data Sheet

AD5940/AD5941

Rev. C | Page 23 of 134

Figure 13. Low Power TIA Input Bias Current (IBIAS) vs. Temperature

Figure 14. Low Power Potentiostat Input Bias Current vs. Temperature

Figure 15. Electrodermal Activity (EDA) Measurement Relative Error vs.

Impedance

Figure 16. VREF 1.8 V Lifetime Drift

Figure 17. VREF 2.5 V Lifetime Drift

–140

–100

–60

–20

–120

–80

–40

TEMPERATURE (°C)

SE0 = 200mV

SE0 = 1100mV

SE0 = 2100mV

–16

–12

–8

–4

–14

–10

–6

–2

TEMPERATURE (°C)

RE0 = 200mV

RE0 = 1100mV

RE0 = 2100mV

–40

0.3

–0.3

–0.1

0.1

–0.2

0.2

IMPEDANCE (Ω)

BOARD1 ERROR

BOARD2 ERROR

BOARD3 ERROR

100k

300k

500k

800k

10M

1.8165

1.8170

1.8175

1.8180

1.8185

1.8190

1.8195

1.8200

200

400

600

800

1000

1200

TIME (Hours)

2.4970

2.4975

2.4980

2.4985

2.4990

2.4995

2.5000

2.5005

2.5010

200

400

600

800

1000

1200

TIME (Hours)

AD5941 Datasheet(PDF) 23 Page - Analog Devices

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