Datasheet

0.1 F(typ)m
VDD
5
10
1
2
3
4
ADDR
ALERT/RDY
GND
AIN0
AIN1
SCL
9
8
7
6
SDA
VDD
AIN3
AIN2
ADS1015
InputsSelected
fromConfiguration
Register
OutputCodes
0 32767-
ADS1013
ADS1014
ADS1015
www.ti.com SBAS473C –MAY 2009–REVISED OCTOBER 2009
SINGLE-ENDED INPUTS The ADS1015 input range is bipolar differential with
respect to the reference. The single-ended circuit
Although the ADS1015 has two differential inputs, the
shown in Figure 23 covers only half the ADS1015
device can easily measure four single-ended signals.
input scale because it does not produce differentially
Figure 23 shows a single-ended connection scheme.
negative inputs; therefore, one bit of resolution is lost.
The ADS1015 is configured for single-ended
measurement by configuring the MUX to measure
each channel with respect to ground. Data are then
read out of one input based on the selection on the
configuration register. The single-ended signal can
range from 0V to supply. The ADS1015 loses no
linearity anywhere within the input range. Negative
voltages cannot be applied to this circuit because the
ADS1015 can only accept positive voltages.
NOTE: Digital and address pin connections omitted for clarity.
Figure 23. Measuring Single-Ended Inputs
Copyright © 2009, Texas Instruments Incorporated Submit Documentation Feedback 23
Product Folder Link(s): ADS1013 ADS1014 ADS1015