Datasheet

ADAS1000/ADAS1000-1/ADAS1000-2 Data Sheet
Rev. A | Page 26 of 80
Figure 54. ADAS1000-1 Simplified Block Diagram
COMMON-
MODE AMP
RLD_SJ
DRIVEN
LEAD
AMP
SHIELD
DRIVE
AMP
SHIELD
ECG1_LA
ECG2_LL
ECG3_RA
ECG4_V1
ECG5_V2
AC
LEAD-OFF
DETECTION
RLD_OUT CM_IN
VREF
REFOUT
XTAL1 XTAL2
PD
CS
SCLK
SDI
DGND
SDO
DRDY
RESET
AGND
IOVDD
CLOCK GEN/OSC/
EXTERNAL CLK
SOURCE
SYNC_GANG
REFIN CAL_DAC_IO
DC LEAD-
OFF/MUXES
VCM_REF
(1.3V)
CALIBRATION
DAC
CLK_IO
AVDD
ADCVDD
DVDD
GPIO3
GPIO1/MSCLK
GPIO2/MSDO
GPIO0/MCS
AMP
AMP
ECG PATH
VREF
FILTERS,
CONTROL,
AND
INTERFACE
LOGIC
REFGND
CM_OUT/WCT
10kΩ
ADCVDD, DVDD
1.8V
REGULATORS
ADAS1000-1
10kΩ
VCM
ADC
ADC
AMP
ADC
AMP
ADC
AMP
ADC
AC
LEAD-OFF
DAC
09660-012