Datasheet ADS1015

VDD
SDA
SCL
Microcontroller or
Microprocessor
With I
2
C Port
1-kto 10-k(typ)
I
2
C Pullup Resistors
VDD
GND
Copyright © 2016, Texas Instruments Incorporated
ADDR
ALERT/RDY
GND
AIN0
AIN1
SCL
SDA
VDD
AIN3
AIN2
ADS1015
1
2
3
4
5
10
9
8
7
6
ADDR
ALERT/RDY
GND
AIN0
AIN1
SCL
SDA
VDD
AIN3
AIN2
ADS1015
1
2
3
4
5
10
9
8
7
6
ADDR
ALERT/RDY
GND
AIN0
AIN1
SCL
SDA
VDD
AIN3
AIN2
ADS1015
1
2
3
4
5
10
9
8
7
6
ADDR
ALERT/RDY
GND
AIN0
AIN1
SCL
SDA
VDD
AIN3
AIN2
ADS1015
1
2
3
4
5
10
9
8
7
6
30
ADS1013 , ADS1014 , ADS1015
SBAS473E –MAY 2009–REVISED JANUARY 2018 www.ti.com
Product Folder Links: ADS1013 ADS1014 ADS1015
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Application Information (continued)
9.1.6 Connecting Multiple Devices
It is possible to connect up to four ADS101x devices to a single I
2
C bus using different address pin configurations
for each device. Use the address pin to set the ADS101x to one of four different I
2
C addresses. Use the GND,
VDD and SCL addresses first. If SDA is used as the device address, hold the SDA line low for at least 100 ns
after the SCL line goes low to make sure the device decodes the address correctly during I
2
C communication. An
example showing four ADS101x devices on the same I
2
C bus is shown in Figure 27. One set of pullup resistors
is required per bus. The pullup resistor values may need to be lowered to compensate for the additional bus
capacitance presented by multiple devices and increased line length.
NOTE: ADS101x power and input connections omitted for clarity. The ADDR pin selects the I
2
C address.
Figure 27. Connecting Multiple ADS101x Devices