Datasheet

ADS1217
18
SBAS260C
www.ti.com
M/DEC1 (Address 09
H
) Mode and Decimation Register
Reset Value = 07
H
bit 7 DRDY: Data Ready (Read Only)
This bit duplicates the state of the DRDY pin.
bit 6 U/B: Data Format
0 = Bipolar (default)
1 = Unipolar
bit 5-4 SMODE1: SMODE0: Settling Mode
00 = Auto (default)
01 = Fast Settling filter
10 = Sinc
2
filter
11 = Sinc
3
filter
bit 2-0 DEC10: DEC09: DEC08: Most Significant Bits of
the Decimation Value
OCR0 (Address 0A
H
) Offset Calibration Coefficient
(Least Significant Byte)
Reset Value = 00
H
OCR1 (Address 0B
H
) Offset Calibration Coefficient
(Middle Byte)
Reset Value = 00
H
U/B ANALOG INPUT DIGITAL OUTPUT
+FS 0x7FFFFF
0 Zero 0x000000
–FS 0x800000
+FS 0xFFFFFF
1 Zero 0x000000
–FS 0x000000
bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
OCR07 OCR06 OCR05 OCR04 OCR03 OCR02 OCR01 OCR00
bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
OCR15 OCR14 OCR13 OCR12 OCR11 OCR10 OCR09 OCR08
bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
OCR23 OCR22 OCR21 OCR20 OCR19 OCR18 OCR17 OCR16
bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
FSR07 FSR06 FSR05 FSR04 FSR03 FSR02 FSR01 FSR00
bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
FSR15 FSR14 FSR13 FSR12 FSR011 FSR10 FSR09 FSR08
bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
FSR23 FSR22 FSR21 FSR20 FSR019 FSR18 FSR17 FSR16
bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0
DRDY U/B SMODE1 SMODE0 Reserved DEC10 DEC09 DEC08
OCR2 (Address 0C
H
) Offset Calibration Coefficient
(Most Significant Byte)
Reset Value = 00
H
FSR0 (Address 0D
H
) Full-Scale Register
(Least Significant Byte)
Reset Value = 24
H
FSR1 (Address 0E
H
) Full-Scale Register
(Middle Byte)
Reset Value = 90
H
FSR2 (Address 0F
H
) Full-Scale Register
(Most Significant Byte)
Reset Value = 67
H