Datasheet

ADS1146
ADS1147
ADS1148
www.ti.com SBAS453F –JULY 2009–REVISED APRIL 2012
REGISTER DESCRIPTIONS
ADS1146 REGISTER MAP
Table 14. ADS1146 Register Map
ADDRESS REGISTER BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
00h BCS BCS1 BCS0 0 0 0 0 0 1
01h VBIAS 0 0 0 0 0 0 VBIAS1 VBIAS0
02h MUX1 CLKSTAT 0 0 0 0 MUXCAL2 MUXCAL1 MUXCAL0
03h SYS0 0 PGA2 PGA1 PGA0 DR3 DR2 DR1 DR0
04h OFC0 OFC7 OFC6 OFC5 OFC4 OFC3 OFC2 OFC1 OFC0
05h OFC1 OFC15 OFC14 OFC13 OFC12 OFC11 OFC10 OFC9 OFC8
06h OFC2 OFC23 OFC22 OFC21 OFC20 OFC19 OFC18 OFC17 OFC16
07h FSC0 FSC7 FSC6 FSC5 FSC4 FSC3 FSC2 FSC1 FSC0
08h FSC1 FSC15 FSC14 FSC13 FSC12 FSC11 FSC10 FSC9 FSC8
09h FSC2 FSC23 FSC22 FSC21 FSC20 FSC19 FSC18 FSC17 FSC16
DRDY
0Ah ID ID3 ID2 ID1 ID0 0 0 0
MODE
ADS1146 DETAILED REGISTER DEFINITIONS
BCS—Burnout Current Source Register. These bits control the settling of the sensor burnout detect current
source.
BCS - ADDRESS 00h RESET VALUE = 01h
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
BCS1 BCS0 0 0 0 0 0 1
Bits[7:6] BCS[1:0]
These bits select the magnitude of the sensor burnout detect current source.
00 = Burnout current source off (default)
01 = Burnout current source on, 0.5μA
10 = Burnout current source on, 2μA
11 = Burnout current source on, 10μA
Bits[5:0] These bits must always be set to '000001'.
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