ADAS1000-4BSTZ datasheet(19/80 Pages) AD

19 / 80 page

Data Sheet

ADAS1000-3/ADAS1000-4

Figure 17. Typical Gain Error vs. Gain

Figure 18. Typical Gain Error for All Gain Settings Across Temperature

Figure 19. Typical ECG Channel Leakage Current over Input Voltage Range

vs. Temperature

Figure 20. DC Lead-Off Comparator Low Threshold vs. Temperature

Figure 21. DC Lead-Off Comparator High Threshold vs. Temperature

Figure 22. Filter Response with 40 Hz Filter Enabled, 2 kHz Data Rate; See

Figure 72 for Digital Filter Overview

0.001

0.021

0.041

0.061

0.081

0.101

0.121

GAIN 0

GAIN 1

GAIN 2

GAIN 3

AVDD = 3.3V

GAIN SETTING

–0.35

–0.30

–0.25

–0.20

–0.15

–0.10

–0.05

0.05

0.10

0.15

–40

–20

TEMPERATURE (°C)

GAIN ERROR G0

GAIN ERROR G1

GAIN ERROR G2

GAIN ERROR G3

AVDD = 3.3V

GAIN SETTING 0 = 1.4

GAIN SETTING 1 = 2.1

GAIN SETTING 2 = 2.8

GAIN SETTING 3 = 4.2

–5

–4

–3

–2

–1

0.3

0.8

1.3

1.8

2.3

VOLTAGE (V)

+85°C

+55°C

+25°C

–5°C

–40°C

AVDD = 3.3V

GAIN SETTING 0 = 1.4

0.180

0.185

0.190

0.195

0.200

0.205

0.210

0.215

–40

–20

TEMPERATURE (°C)

ECG DC LEAD-OFF THRESHOLD

RLD DC LEAD-OFF THRESHOLD

AVDD = 3.3V

2.375

2.380

2.385

2.390

2.395

2.400

2.405

2.410

2.415

2.420

–40

–20

TEMPERATURE (°C)

ECG DC LEAD-OFF THRESHOLD

RLD DC LEAD-OFF THRESHOLD

AVDD = 3.3V

–10

–9

–8

–7

–6

–5

–4

–3

–2

–1

100

FREQUENCY (Hz)

AVDD = 3.3V

Rev. B | Page 19 of 80

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