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ADAS1000-4BSTZ Datasheet(PDF) 77 Page - Analog Devices

Part # ADAS1000-4BSTZ
Description  Low Power, Three Electrode Electrocardiogram (ECG) Analog Front End
PDF  80 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADAS1000-4BSTZ Datasheet(HTML) 77 Page - Analog Devices

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Data Sheet
ADAS1000-3/ADAS1000-4
51B
SOFTWARE FLOWCHART
Figure 81 shows a suggested sequence of steps to be taken to interface to multiple devices.
Figure 81. Suggested Software Flowchart for Interfacing to Multiple Devices
IS CRC
CORRECT?
DRDY
LOW?
POWER UP ADAS1000
DEVICES
ADAS1000 GOES INTO
POWER-DOWN MODE
WAIT FOR POR ROUTINE
TO COMPLETE, 1.5ms
INITIALIZE SLAVE
DEVICES
INITIALIZE MASTER DEVICE
ENABLING CONVERSION
ISSUE READ FRAME
COMMAND (WRITE TO 0x40)
DISCARD
FRAME DATA
ISSUE SCLK CYCLES (SDI = 0)
TO CLOCK FRAME DATA OUT
AT PROGRAMMED DATA RATE
ACTIVITY
ON
SDI?
RETURN
TO ECG
CAPTURE?
POWER-DOWN?
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
ISSUE READ FRAME
COMMAND (WRITE TO 0x40)
ECG CAPTURE COMPLETE
POWER-DOWN ADAS1000
ECGCTL = 0x0
ADAS1000 STOPS CONVERTING,
SDI WORD USED TO
RECONFIGURE DEVICE
Rev. B | Page 77 of 80



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