ADAS1000-4BSTZ datasheet(50/80 Pages) AD

tên linh kiện	ADAS1000-4BSTZ

Giải thích chi tiết về linh kiện	Low Power, Three Electrode Electrocardiogram (ECG) Analog Front End

PDF	80 Pages

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nhà sản xuất	AD [Analog Devices]

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50 / 80 page

ADAS1000-3/ADAS1000-4

Data Sheet

INTERFACING IN GANG MODE

As shown in Figure 74, when using multiple devices, the

user must collect the ECG data directly from each device.

The example shown in Figure 75 illustrates one possibility

of how to approach interfacing to a master and slave device.

Note that SCLK, SDO, and SDI are shared here with

individual

lines. This requires the user to read the data

on both devices twice as fast to ensure that they can capture

all the data to maintain the chosen data rate and ensure they

have the relevant synchronized data. Alternative methods

might use individual controllers for each device or separate

SDO paths.

For some applications, digital isolation is required between

the host and the ADAS1000-3/ADAS1000-4. The example

shown illustrates a means to ensure that the number of lines

requiring isolation is minimized.

Figure 75. One Method of Interfacing to Multiple Devices

MASTER

SCLK

SDI

SDO

DRDY (Optional)

SCLK

SDI

CS2

SDO

CS1

SLAVE

SCLK

SDI

SDO

DRDY (Optional)

MICROCRONTROLLER/

DSP

Rev. B | Page 50 of 80

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