ADS1291_14 Datasheet, PDF (47/75 Pages) Texas Instruments – Power, 2-Channel, 24-Bit Analog Front-End for Biopotential Measurements

www.ti.com
LOFF_STAT: Lead-Off Status
Address = 08h
BIT 7
BIT 6
BIT 5
0
CLK_DIV
0
ADS1291
ADS1292
ADS1292R
SBAS502B – DECEMBER 2011 – REVISED SEPTEMBER 2012
BIT 4
RLD_STAT
(read only)
BIT 3
IN2N_OFF
(read only)
BIT 2
IN2P_OFF
(read only)
BIT 1
IN1N_OFF
(read only)
BIT 0
IN1P_OFF
(read only)
This register stores the status of whether the positive or negative electrode on each channel is on or off. See the
Lead-Off Detection subsection of the ECG-Specific Functions section for details. Ignore the LOFF_STAT values
if the corresponding LOFF_SENS bits are not set to '1'.
'0' is lead-on (default) and '1' is lead-off. When the LOFF_SENS bits[3:0] are '0', the LOFF_STAT bits should be
ignored.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Must be set to '0'
CLK_DIV : Clock divider selection
This bit sets the modultar divider ratio between f_CLK and f_MOD. Two external clock values are supported: 512 kHz and
2.048 MHz.
0 = f_MOD = f_CLK / 4 (default, use when f_CLK = 512 kHz)
1 = f_MOD = f_CLK / 16 (use when f_CLK = 2.048 MHz)
Must be set to '0'
RLD_STAT: RLD lead-off status
This bit determines the status of RLD.
0 = RLD is connected (default)
1 = RLD is not connected
IN2N_OFF: Channel 2 negative electrode status
This bit determines if the channel 2 negative electrode is connected or not.
0 = Connected (default)
1 = Not connected
IN2P_OFF: Channel 2 positive electrode status
This bit determines if the channel 2 positive electrode is connected or not.
0 = Connected (default)
1 = Not connected
IN1N_OFF: Channel 1 negative electrode status
This bit determines if the channel 1 negative electrode is connected or not.
0 = Connected (default)
1 = Not connected
IN1P_OFF: Channel 1 positive electrode status
This bit determines if the channel 1 positive electrode is connected or not.
0 = Connected (default)
1 = Not connected
Copyright © 2011–2012, Texas Instruments Incorporated
Submit Documentation Feedback
47
Product Folder Links: ADS1291 ADS1292 ADS1292R