Datasheet

Data Sheet ADAS1000/ADAS1000-1/ADAS1000-2
Rev. A | Page 3 of 80
FUNCTIONAL BLOCK DIAGRAM
Figure 1. ADAS1000 Full Featured Model
Table 1. Overview of Features Available from ADAS1000 Generics
Generic ECG Operation Right Leg Drive Respiration
Pace
Detection
Shield
Driver
Master
Interface
1
Package
Option
ADAS1000 5 ECG channels Master/slave Yes Yes Yes Yes Yes LFCSP, LQFP
ADAS1000-1 5 ECG channels Master/slave Yes Yes Yes LFCSP
ADAS1000-2
2
5 ECG channels Slave LFCSP, LQFP
ADAS1000-3 3 ECG channels Master/slave Yes Yes Yes LFCSP, LQFP
ADAS1000-4 3 ECG channels Master/slave Yes Yes Yes Yes Yes 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.
ELECTRODES
×5
VREF
REFOUT
REFIN CAL_DAC_IO
AMP
ADC
RESPIRATION PATH
MUXES
AC
LEAD-OFF
DAC
CALIBRATION
DAC
AMP
ADC
5× ECG PATH
FILTERS,
CONTROL,
AND
INTERFACE
LOGIC
PACE
DETECTION
CS
SCLK
SDI
SDO
DRDY
GPIO3
GPIO1/MSCLK
GPIO2/MSDO
GPIO0/MCS
AC
LEAD-OFF
DETECTION
–
+
COMMON-
MODE AMP
RLD_SJ
DRIVEN
LEAD
AMP
SHIELD
DRIVE
AMP
SHIELDRLD_OUT CM_IN
XTAL1 XTAL2
IOVDD
CLOCK GEN/OSC/
EXTERNAL CLK
SOURCE
EXT_RESP_LA
EXT_RESP_LL
VCM_REF
(1.3V)
CLK_IO
AVDD
ADCVDD
DVDD
EXT_RESP_RA
CM_OUT/WCT
10kΩ
ADCVDD, DVDD
1.8V
REGULATORS
ADAS1000
BUFFER
RESPIRATION
DAC
09660-001