Datasheet

CSB
SCLK
SDI
SDO
RLDINV
RLDIN
CMOUT
DRDYB
RLDREF
RLDOUT
DIGITAL
CONTROL AND
POWER
MANAGEMENT
Wilson
ref.
Digital
Filter
¨
Modulator
Digital
Filter
¨
Modulator
WCT
RA LA
LL
RL
IN1
IN2
IN3
IN4
IN5
IN6
R
1
R
2
C
1
I
II
CLK
SELRLD
WILSON_EN
-
+
CSB
SCLK
SDI
SDO
RLDINV
RLDIN
CMOUT
DRDYB
RLDREF
RLDOUT
DIGITAL
CONTROL AND
POWER
MANAGEMENT
Digital
Filter
¨
Modulator
Digital
Filter
¨
Modulator
Digital
Filter
¨
Modulator
-
+
-
+
InA
InA
InA
WCT
IN1
IN2
IN3
IN4
IN5
IN6
V1
V2
V3
CLK
SYNCB
-
+
CSB
SCLK
SDI
SDO
RLDINV
RLDIN
CMOUT
DRDYB
RLDREF
RLDOUT
DIGITAL
CONTROL AND
POWER
MANAGEMENT
Digital
Filter
¨
Modulator
Digital
Filter
¨
Modulator
Digital
Filter
¨
Modulator
-
+
-
+
InA
InA
InA
WCT
IN1
IN2
IN3
IN4
IN5
IN6
V4
V5
V6
CLK
SYNCB
V1
V2
V3
V4
V5
V6
-
+
-
+
ALARMB
ALARMB
ALARMB
REF for
CM & RLD
CMDET_EN
-
+
RLD
Amp.
InA
InA
CM
detect
0.1 PF
0.1 PF
VSS
VDD
VDDIO
XTAL1
XTAL2
CVREF
5V
VSS
VDD
VDDIO
CVREF
1 PF
5V 3.3V
0.1PF
CH1
CH2
SYNCB
VSS
VDD
VDDIO
CVREF
1 PF
5V 3.3V
0.1 PF
CH1
CH2
CH3
CH1
CH2
CH3
5V 5V
0.1 PF
1 PF
4.096
MHz
0.1 PF
3.3V
0.1 PF
22 pF 22 pF
VSSIO
0.1 PF
0.1 PF
VSSIO
VSSIO
1 M
RSTB
3.3V
1 M
RSTB
3.3V
1 M
RSTB
3.3V
ADS1293
www.ti.com SNAS602B –FEBRUARY 2013–REVISED MARCH 2013
Figure 34. 8- or 12-Lead ECG Application
Copyright © 2013, Texas Instruments Incorporated 45
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