EZR32LG330 Datasheet, PDF (52/87 Pages) Silicon Laboratories – Building and home automation

4.14 Analog Comparator (ACMP)
EZR32LG330 Data Sheet
Electrical Specifications
Table 4.19. ACMP
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Input voltage range
V_ACMPIN
0
─
V_DD
V
ACMP Common Mode
voltage range
V_ACMPCM
0
─
V_DD
V
BIASPROG=0b0000, FULL-
─
I_ACMP
BIAS=0 and HALFBIAS=1 in
ACMPn_CTRL register
0.1
0.4
µA
Active current
BIASPROG=0b1111, FULL-
─
I_ACMPREF
BIAS=0 and HALFBIAS=0 in
ACMPn_CTRL register
2.87
15
µA
V_ACMPOFFSET
BIASPROG=0b1111, FULL-
─
BIAS=1 and HALFBIAS=0 in
ACMPn_CTRL register
195
520
µA
Current consumption of
internal voltage refer-
V_ACMPHYST
Internal voltage reference off. Us-
ing external voltage reference
─
0
─
µA
ence
R_CSRES
Internal voltage reference
─
5
─
µA
Offset voltage
t_ACMPSTART
BIASPROG= 0b1010, FULL-
-12
0
12
mV
BIAS=0 and HALFBIAS=0 in
ACMPn_CTRL register
ACMP hysteresis
Programmable
─
17
─
mV
CSRESSEL=0b00 in ACMPn_IN-
─
39
─
kΩ
PUTSEL
Capacitive Sense Inter-
nal Resistance
CSRESSEL=0b01 in ACMPn_IN-
─
71
─
kΩ
PUTSEL
CSRESSEL=0b10 in ACMPn_IN-
─
104
─
kΩ
PUTSEL
CSRESSEL=0b11 in ACMPn_IN-
─
136
─
kΩ
PUTSEL
Startup time
─
─
10
µs
The total ACMP current is the sum of the contributions from the ACMP and its internal voltage reference as given below. I_ACMPREF is
zero if an external voltage reference is used: I_ACMPTOTAL = I_ACMP = I_ACMPREF
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