Texas Instruments ADS1194, User Manual, Page: 13 / 57

MUX[2:0] = 101
TempP
MUX[2:0] = 100
MvddP
(1)
MUX[2:0] = 011
From LoffP
MUX[2:0] = 000
MUX[2:0] = 110
MUX[2:0] = 001
To PgaP
To PgaN
MUX[2:0] = 001
RLDIN
MUX[2:0] = 010
RLD_MEAS AND
MUX[2:0] = 111
VINP
VINN
MUX[2:0] = 000
From LoffN
RLD_REF
MUX[2:0] = 010
RLD_MEAS AND
MvddN
(1)
TempN
MUX[2:0] = 100
MUX[2:0] = 101
ADS129x
MUX
TestP
TestN
TESTP_PACE_OUT1
INT_TEST
INT_TEST
TESTN_PACE_OUT2
INT_TEST
INT_TEST
MUX[2:0] = 011
EMI
Filter
(AVDD + AVSS)
2
a) Pull-Up/Pull-Down Resistors b) Current Source
PGA
10M
W
10M
W
AVDD
INP
INN
PGA
AVDD
INP
INN
ADS129x ADS129x
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Using the ADS1298ECG-FE Software
13 SBAU171D – May 2010 – Revised January 2016
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ADS1298ECG-FE/ADS1198ECG-FE
Figure 10. Lead-Off Excitation Options
3.4.2.2 Channel Control Registers
The Channel Control Registers box allows the user to uniquely configure the front-end MUX for each ADC
channel. Additionally, at the top of the Channel Control Registers box (see Figure 8 ) is the option to
globally set all channels to the same setting. The channel-specific MUX is illustrated in Figure 11 .
Figure 11. Input Multiplexer for a Single Channel