User's Manual

CE910 Family Hardware User Guide
1vv0301010 Rev.11 – 2015-10-27
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights Reserved.
Page 57 of 75
11. ADC section
11.1. Description
The on board ADC is 12-bit converter. It is able to read a voltage level in the range of 0 ~ 1.2 volts
applied on the ADC pin input and store and convert it into 12 bit word.
Parameter
Min
Max
Units
Input Voltage range
0
1.2
Volt
AD conversion
-
12
bits
Resolution
-
< 1
mV
Input Resistance
1
Mohm
The CE910 provides one Analog to Digital Converter.
The input line is named as ADC_IN1 and it is available on pad B1.
11.2. Using ADC Converter
An AT command is available to use the ADC function.
The command is AT#ADC=1,2. The read value is expressed in mV
Refer to SW User Guide or AT Commands Reference Guide for the full description of this function.
WARNING:
The ADC value read by AT command may present a certain level when it’s open(not loaded). It is not
an actual error and the ADC value is valid only if any input is asserted to ADC_IN1