ADS1291_14 Datasheet, PDF (39/75 Pages) Texas Instruments – Power, 2-Channel, 24-Bit Analog Front-End for Biopotential Measurements

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ADS1291
ADS1292
ADS1292R
SBAS502B – DECEMBER 2011 – REVISED SEPTEMBER 2012
REGISTER MAP
Table 14 describes the various ADS1291, ADS1292, and ADS1292R registers.
ADDRESS
REGISTER
RESET
VALUE
(Hex)
Device Settings (Read-Only Registers)
00h
ID
XX
Global Settings Across Channels
01h
CONFIG1
02
02h
CONFIG2
80
03h
LOFF
10
Channel-Specific Settings
04h
CH1SET
00
05h
CH2SET
00
06h
RLD_SENS
00
07h
LOFF_SENS
00
08h
LOFF_STAT
00
GPIO and Other Registers
09h
RESP1
00
0Ah
RESP2
02
0Bh
GPIO
0C
Table 14. Register Assignments
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
REV_ID7
REV_ID6
REV_ID5
1
0
0
REV_ID1
REV_ID0
SINGLE_
SHOT
1
COMP_TH2
0
0
PDB_LOFF_
COMP
COMP_TH1
PDB_REFBUF
COMP_TH0
0
VREF_4V
1
0
DR2
DR1
CLK_EN
0
ILEAD_OFF1 ILEAD_OFF0
INT_TEST
0
DR0
TEST_FREQ
FLEAD_OFF
PD1
PD2
CHOP1
0
0
GAIN1_2
GAIN2_2
CHOP0
0
CLK_DIV
GAIN1_1
GAIN2_1
PDB_RLD
FLIP2
0
GAIN1_0
GAIN2_0
RLD_LOFF_
SENS
FLIP1
RLD_STAT
MUX1_3
MUX2_3
RLD2N
LOFF2N
IN2N_OFF
MUX1_2
MUX2_2
RLD2P
LOFF2P
IN2P_OFF
MUX1_1
MUX2_1
RLD1N
LOFF1N
IN1N_OFF
MUX1_0
MUX2_0
RLD1P
LOFF1P
IN1P_OFF
RESP_
DEMOD_EN1
CALIB_ON
0
RESP_MOD_
EN
0
0
RESP_PH3
0
0
RESP_PH2
0
0
RESP_PH1
0
GPIOC2
RESP_PH0
1
RESP_CTRL
RESP_FREQ RLDREF_INT
GPIOC1
GPIOD2
1
GPIOD1
User Register Description
ID: ID Control Register (Factory-Programmed, Read-Only)
Address = 00h
BIT 7
REV_ID7
BIT 6
REV_ID6
BIT 5
REV_ID5
BIT 4
1
BIT 3
0
BIT 2
0
BIT 1
REV_ID1
This register is programmed during device manufacture to indicate device characteristics.
Bits[7:5]
Bit 4
Bits[3:2]
Bits[1:0]
REV_ID[7:5]: Revision identification
000 = Reserved
001 = Reserved
010 = ADS1x9x device
011 = ADS1292R device
100 = Reserved
101 = Reserved
110 = Reserved
111 = Reserved
Reads high
Reads low
REV_ID[1:0]: Revision identification
00 = ADS1191
01 = ADS1192
10 = ADS1291
11 = ADS1292 and ADS1292R
BIT 0
REV_ID0
Copyright © 2011–2012, Texas Instruments Incorporated
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