Adc; Table 22: Adc1 And Adc2 Electronic Characteristics - SIM Tech SimCom SIM7100 Hardware Design

Note: The sinking current can be adjusted to meet design requirement through the AT command "AT+
CLEDITST =<0>, <value>".The "value" ranges from 0 to 8, on behalf of the current changes from
0mA to 40mA by 5mA step.

3.15.2 ADC

SIM7100 has 2 dedicated ADC pins named ADC1 and ADC2 that is available for digitizing analog signals
such as battery voltage and so on. These electronic specifications are shown in the following table.

Table 22: ADC1 and ADC2 Electronic Characteristics

Specification
Resolution
Conversion time
Input Range
Input serial resistance
Active mode Current
consumption
OFF mode Current
consumption
Note ： For more details about ADC AT command, please refer to document [1].
SIM7100_Hardware Design_V1.01
Pin 45 is VBAT tolerant-
suitable for driving white
LEDs
Figure 32: ISINK Reference Circuit
Min. Typ.
15
– –
442 –
–
0.3 VBAT
1
–
–
600 900
–
50 200
–
VBAT
+
Passive
device
-
ISINK
High
current
MODULE
Current Controls
Max. Unit
Bits
ms
V
MΩ
uA
nA
45
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Comments/Conditions
2015-01-20