ADS1291
ADS1292
ADS1292R
www.ti.com
SBAS502A –DECEMBER 2011–REVISED MARCH 2012
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (December 2011) to Revision A
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Changed device graphic ....................................................................................................................................................... 1
Changed device status from Mixed Status to Production Data ............................................................................................ 1
Changed second Features bullet .......................................................................................................................................... 1
Updated Family and Ordering Information table ................................................................................................................... 2
Moved ADS1292R to production status ................................................................................................................................ 2
Deleted footnote 2 from Family and Ordering Information table .......................................................................................... 2
Changed values of AVDD to AVSS and DVDD to DGND rows in Absolute Maximum Ratings table .................................. 2
Changed Operating temperature range parameter in Absolute Maximum Ratings table ..................................................... 2
Changed DC Channel Performance, INL parameter test conditions in Electrical Characteristics table .............................. 3
Changed AC Channel Performance, SNR and THD parameters test conditions in Electrical Characteristics table ........... 3
Added third Channel Performance, THD parameter row to Electrical Characteristics table ................................................ 3
Added Digital Filter section to Electrical Characteristics table .............................................................................................. 4
Deleted Right Leg Drive Amplifier, Quiescent power consumption parameter test condition from Electrical
Characteristics table ............................................................................................................................................................. 4
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Changed Respiration, Impedance measurement noise parameter test conditions in Electrical Characteristics table ......... 4
Changed Respiration, Maximum modulator current parameter in Electrical Characteristics table ...................................... 4
Changed Power-Supply Requirements, Digital supply parameter in Electrical Characteristics table .................................. 5
Changed first IDVDD Supply Current, Normal mode parameter test conditions in Electrical Characteristics table ................ 6
Changed 3-V Power Dissipation, Quiescent power dissipation, per channel parameter typical specifications in
Electrical Characteristics table .............................................................................................................................................. 6
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Added CFILTER to Typical Characteristics conditions ........................................................................................................... 13
Updated Figure 5 ................................................................................................................................................................ 13
Updated Figure 9 and Figure 12 ......................................................................................................................................... 14
Added CFILTER to Typical Characteristics conditions ........................................................................................................... 14
Added CFILTER to Typical Characteristics conditions ........................................................................................................... 15
Changed description of CHnSET setting in Supply Measurements (MVDDP, MVDDN) section ....................................... 19
Changed second paragraph of PGA Settings and Input Range section ............................................................................ 21
Changed description of PD_REFBUF bit in the Reference section ................................................................................... 25
Updated second column title in Table 9 ............................................................................................................................. 26
Updated Figure 41 .............................................................................................................................................................. 33
Updated description of DOUT and DRDY in RDATAC: Read Data Continuous section ................................................... 35
Updated RLD_STAT in address 08h of Table 14 ............................................................................................................... 38
Changed description of bit 1 in CONFIG2: Configuration Register 2 ................................................................................. 40
Changed descriptions of bits[3:0] in CH2SET: Channel 2 Settings .................................................................................... 43
Updated Figure 54 .............................................................................................................................................................. 56
Added description of Figure 55, Figure 55, and Table 16 to Internal Respiration Circuitry with External Clock
(ADS1292R) section ........................................................................................................................................................... 57
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Added ADS1292R Application section ............................................................................................................................... 57
Updated Figure 58 and Figure 59 ....................................................................................................................................... 58
Updated Figure 60 and added footnote 1 ........................................................................................................................... 59
Updated Figure 61 and added footnote 1 ........................................................................................................................... 60
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