ADS1118_13 Datasheet, PDF (22/38 Pages) Texas Instruments – Ultra-Small, Low-Power, SPI™-Compatible, 16-Bit Analog-to-Digital Converter and Temperature Sensor with Internal Reference

ADS1118
SBAS457C – OCTOBER 2010 – REVISED FEBRUARY 2013
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Bit 8
Bits[7:5]
Bit 4
Bit 3
Bits[2:0]
Bit 0
MODE: Device operating mode
This bit controls the ADS1118 operating mode.
0 = Continuous conversion mode
1 = Power-down and single-shot mode (default)
DR[2:0]: Data rate
These bits control the data rate setting.
000 = 8 SPS
001 = 16 SPS
010 = 32 SPS
011 = 64 SPS
100 = 128 SPS (default)
101 = 250 SPS
110 = 475 SPS
111 = 860 SPS
TS_MODE: Temperature sensor mode
This bit configures the ADC to convert temperature or input signals.
0 = ADC mode (default)
1 = Temperature sensor mode
PULL_UP_EN: Pull-up enable
This bit enables a weak pull-up resistor on the DOUT/DRDY pin. When enabled, a 400-kΩ resistor connects
the bus line to supply. When disabled, the DOUT/DRDY pin floats.
0 = Pull-up resistor disabled on DOUT/DRDY pin
1 = Pull-up resistor enabled on DOUT/DRDY pin (default)
NOP: No operation
The NOP bits control whether data are written to the Config register or not. In order for data to be written to the
Config register, the NOP bits must be '01'. Any other value results in a NOP command. DIN can be held high or
low during SCLK pulses without data being written to the Config register.
00 = Invalid data, do not update the contents of the Config register
01 = Valid data, update the Config register (default)
10 = Invalid data, do not update the contents of the Config register
11 = Invalid data, do not update the contents of the Config register
Not used
Always reads '1'
22
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