Datasheet ADS1015

24
ADS1013 , ADS1014 , ADS1015
SBAS473E –MAY 2009–REVISED JANUARY 2018 www.ti.com
Product Folder Links: ADS1013 ADS1014 ADS1015
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8.6.3 Config Register (P[1:0] = 1h) [reset = 8583h]
The 16-bit Config register is used to control the operating mode, input selection, data rate, full-scale range, and
comparator modes.
Figure 21. Config Register
15 14 13 12 11 10 9 8
OS MUX[2:0] PGA[2:0] MODE
R/W-1h R/W-0h R/W-2h R/W-1h
7 6 5 4 3 2 1 0
DR[2:0] COMP_MODE COMP_POL COMP_LAT COMP_QUE[1:0]
R/W-4h R/W-0h R/W-0h R/W-0h R/W-3h
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
(1) This parameter expresses the full-scale range of the ADC scaling. Do not apply more than VDD + 0.3 V to the analog inputs of the
device.
Table 6. Config Register Field Descriptions
Bit Field Type Reset Description
15 OS R/W 1h
Operational status or single-shot conversion start
This bit determines the operational status of the device. OS can only be written
when in power-down state and has no effect when a conversion is ongoing.
When writing:
0 : No effect
1 : Start a single conversion (when in power-down state)
When reading:
0 : Device is currently performing a conversion
1 : Device is not currently performing a conversion
14:12 MUX[2:0] R/W 0h
Input multiplexer configuration (ADS1015 only)
These bits configure the input multiplexer. These bits serve no function on the
ADS1013 and ADS1014.
000 : AIN
P
= AIN0 and AIN
N
= AIN1 (default)
001 : AIN
P
= AIN0 and AIN
N
= AIN3
010 : AIN
P
= AIN1 and AIN
N
= AIN3
011 : AIN
P
= AIN2 and AIN
N
= AIN3
100 : AIN
P
= AIN0 and AIN
N
= GND
101 : AIN
P
= AIN1 and AIN
N
= GND
110 : AIN
P
= AIN2 and AIN
N
= GND
111 : AIN
P
= AIN3 and AIN
N
= GND
11:9 PGA[2:0] R/W 2h
Programmable gain amplifier configuration
These bits set the FSR of the programmable gain amplifier. These bits serve no
function on the ADS1013.
000 : FSR = ±6.144 V
(1)
001 : FSR = ±4.096 V
(1)
010 : FSR = ±2.048 V (default)
011 : FSR = ±1.024 V
100 : FSR = ±0.512 V
101 : FSR = ±0.256 V
110 : FSR = ±0.256 V
111 : FSR = ±0.256 V
8 MODE R/W 1h
Device operating mode
This bit controls the operating mode.
0 : Continuous-conversion mode
1 : Single-shot mode or power-down state (default)
7:5 DR[2:0] R/W 4h
Data rate
These bits control the data rate setting.
000 : 128 SPS
001 : 250 SPS
010 : 490 SPS
011 : 920 SPS
100 : 1600 SPS (default)
101 : 2400 SPS
110 : 3300 SPS
111 : 3300 SPS