MSC1200_14 Datasheet, PDF (70/93 Pages) Texas Instruments – MSC1200 and MSC1201: 24 Bits No Missing Codes 22 Bits Effective Resolution At 10Hz

MSC1200
MSC1201
MSC1202
SBAS317E − APRIL 2004 − REVISED MAY 2006
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ADC Control 0 (ADCON0)
7
6
SFR DCh
—
BOD
5
EVREF
4
VREFH
3
EBUF
2
PGA2
1
PGA1
0
PGA0
Reset Value
30h
BOD
bit 6
Burnout Detect. When enabled, this connects a positive current source to the positive channel and a negative
current source to the negative channel. If the channel is open circuit, then the ADC results will be full-scale (buffer
must be enabled).
0 = Burnout Current Sources Off (default).
1 = Burnout Current Sources On.
EVREF
bit 5
Enable Internal Voltage Reference. If an external voltage is used, the internal voltage reference should be disabled.
0 = Internal Voltage Reference Off for external reference.
1 = Internal Voltage Reference On (default). Note that in this mode, REFIN− must be connected to AGND.
VREFH
bit 4
Voltage Reference High Select. The internal voltage reference can be selected to be 2.5V or 1.25V.
0 = REFOUT/REF IN+ is 1.25V.
1 = REFOUT/REF IN+ is 2.5V (default).
EBUF
bit 3
PGA2−0
bits 2−0
Enable Buffer. Enables the input buffer to provide higher input impedance but limits the input voltage range and
dissipates more power.
0 = Buffer disabled (default).
1 = Buffer enabled. Input signal limited to AV_DD − 1.5V.
Programmable Gain Amplifier. Sets the gain for the PGA from 1 to 128.
PGA2
0
0
0
0
1
1
1
1
PGA1
0
0
1
1
0
0
1
1
PGA0
0
1
0
1
0
1
0
1
GAIN
1 (default)
2
4
8
16
32
64
128
70