ADAS1000-3BSTZ-RL View Datasheet(PDF) - Analog Devices

Part Name

Description

MFG CO.

ADAS1000-3BSTZ-RL

Low Power, Three Electrode Electrocardiogram (ECG) Analog Front End

Analog Devices 

ADAS1000-3/ADAS1000-4

Data Sheet

FUNCTIONAL BLOCK DIAGRAM

REFIN REFOUT CAL_DAC_IO RLD_SJ RLD_OUT CM_IN

CM_OUT/WCT SHIELD

AVDD

IOVDD

VREF

CALIBRATION

DAC

RESPIRATION

DAC

AC

LEAD-OFF

DAC

DRIVEN

LEAD

AMP

VCM_REF

(1.3V)

10kΩ

COMMON-

MODE AMP

SHIELD

DRIVE

AMP

ADCVDD, DVDD

1.8V

REGULATORS

AC

LEAD-OFF

DETECTION

ADCVDD

DVDD

MUXES

BUFFER

PACE

DETECTION

CS

ELECTRODES

×3

EXT_RESP_LA

EXT_RESP_LL

EXT_RESP_RA

ADAS1000-4

3× ECG PATH

AMP

ADC

AMP

ADC

RESPIRATION PATH

FILTERS,

CONTROL,

AND

INTERFACE

LOGIC

CLOCK GEN/OSC/

EXTERNAL CLK

SOURCE

SCLK

SDI

SDO

DRDY

GPIO0/MCS

GPIO1/MSCLK

GPIO2/MSDO

GPIO3

CLK_IO

XTAL1 XTAL2

Figure 1. ADAS1000-4 3-Channel Full Featured Model

Table 1. Overview of Features Available from ADAS1000 Generics

Generic

ADAS1000

ADAS1000-1

ADAS1000-22

ADAS1000-3

ADAS1000-4

ECG

5 ECG channels

5 ECG channels

5 ECG channels

3 ECG channels

3 ECG channels

Operation

Master/slave

Master/slave

Slave

Master/slave

Master/slave

Right Leg Drive

Yes

Yes

Yes

Yes

Respiration

Yes

Yes

Pace

Detection

Yes

Yes

Shield

Driver

Yes

Yes

Yes

Yes

Master

Interface1

Yes

Yes

Yes

Yes

Package

Option

LFCSP, LQFP

LFCSP

LFCSP, LQFP

LFCSP, LQFP

LFCSP, LQFP

1 Master interface is provided for users wishing to utilize their own digital pace algorithm; see the Secondary Serial Interface section.

2 This is a companion device for increased channel count purposes. It has a subset of features and is not intended for standalone use. It may be used in conjunction with

any master device.

Rev. B | Page 4 of 80

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