Datasheet

ADS1294, ADS1294R

ADS1296, ADS1296R

ADS1298, ADS1298R

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SBAS459I –JANUARY 2010–REVISED JANUARY 2012

LOFF_SENSP

Address = 0Fh

BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

LOFF8P LOFF7P LOFF6P LOFF5P LOFF4P LOFF3P LOFF2P LOFF1P

This register selects the positive side from each channel for lead-off detection. See the Lead-Off Detection

subsection of the ECG-Specific Functions section for details. Note that the LOFF_STATP register bits are only

valid if the corresponding LOFF_SENSP bits are set to '1'.

Note that registers bits[5:4] are not available for the ADS1294/4R. Bits[7:6] are not available for the

ADS1294/6/4R/6R.

LOFF_SENSN

Address = 10h

BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

LOFF8N LOFF7N LOFF6N LOFF5N LOFF4N LOFF3N LOFF2N LOFF1N

This register selects the negative side from each channel for lead-off detection. See the Lead-Off Detection

subsection of the ECG-Specific Functions section for details. Note that the LOFF_STATN register bits are only

valid if the corresponding LOFF_SENSN bits are set to '1'.

Note that registers bits[5:4] are not available for the ADS1294/4R. Bits[7:6] are not available for the

ADS1294/6/4R/6R.

LOFF_FLIP

Address = 11h

BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

LOFF_FLIP8 LOFF_FLIP7 LOFF_FLIP6 LOFF_FLIP5 LOFF_FLIP4 LOFF_FLIP3 LOFF_FLIP2 LOFF_FLIP1

This register controls the direction of the current used for lead-off derivation. See the Lead-Off Detection

subsection of the ECG-Specific Functions section for details.

LOFF_STATP (Read-Only Register)

Address = 12h

BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

IN8P_OFF IN7P_OFF IN6P_OFF IN5P_OFF IN4P_OFF IN3P_OFF IN2P_OFF IN1P_OFF

This register stores the status of whether the positive 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_STATP values if the

corresponding LOFF_SENSP bits are not set to '1'.

'0' is lead-on (default) and '1' is lead-off. When the LOFF_SENSEP bits are '0', the LOFF_STATP bits should be

ignored.

Product Folder Link(s): ADS1294 ADS1294R ADS1296 ADS1296R ADS1298 ADS1298R