ADS1298R Daughter Card Hardware Details
51
SBAU181B – March 2011 – Revised Janurary 2016
Copyright © 2011–2016, Texas Instruments Incorporated
ADS1298R
6.7.1
Patient Simulator Input
The output from any typical patient simulator can be directly fed in to the DB15 connector. For all
measurements in this user guide, a Fluke medSim 300B simulator was used, as
shows . The
simulator is capable of generating ECG signals down to 50µV of amplitude. Particular attention must be
given to the common-mode value of the input signal for proper data capture. Refer to the
for the common-mode range for various programmable gain amplifier (PGA) gain
settings.
explains the process used to capture 12-lead ECG data.
Figure 42. Fluke Simulator Configuration
6.7.2
Arbitrary Input Signals
Arbitrary input signals can be connected to the ADS1298R by bypassing the DB15 connector and feeding
the signal directly at jumpers JP26-JP33. This requires the removal of the 16 jumpers at JP26-JP33. The
input signal must be connected differentially since each ADC channel input is differential. If it is desired to
connect single-ended signals, bias the negative input of the channels to a mid-supply voltage.
NOTE:
Ensure that the single-ended signal has an offset equal to the voltage supplied at the
negative input of the channel.
