ADS1291_14 Datasheet, PDF (40/75 Pages) Texas Instruments – Power, 2-Channel, 24-Bit Analog Front-End for Biopotential Measurements

ADS1291
ADS1292
ADS1292R
SBAS502B – DECEMBER 2011 – REVISED SEPTEMBER 2012
CONFIG1: Configuration Register 1
Address = 01h
BIT 7
SINGLE_SHOT
BIT 6
0
BIT 5
0
BIT 4
0
BIT 3
0
BIT 2
DR2
This register configures each ADC channel sample rate.
Bit 7
Bits[6:3]
Bits[2:0]
SINGLE_SHOT: Single-shot conversion
This bit sets the conversion mode
0 = Continuous conversion mode (default)
1 = Single-shot mode
Must be set to '0'
DR[2:0]: Channel oversampling ratio
These bits determine the oversampling ratio of both channel 1 and channel 2.
BIT
OVERSAMPLING RATIO DATA RATE⁽¹⁾
000
f_MOD / 1024
125 SPS
001
f_MOD / 512
250 SPS
010
f_MOD / 256
500 SPS (default)
011
f_MOD / 128
1 kSPS
100
f_MOD / 64
2 kSPS
101
f_MOD / 32
4 kSPS
110
f_MOD / 16
8 kSPS
111
Do not use
Do not use
(1) f_CLK = 512 kHz and CLK_DIV = 0 or f_CLK = 2.048 MHz and CLK_DIV = 1.
BIT 1
DR1
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BIT 0
DR0
40
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