EFM32G840F128 Datasheet, PDF (42/71 Pages) Silicon Laboratories – ARM Cortex-M3 CPU platform

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Symbol
DNL_DAC
INL_DAC
MC_DAC
Parameter
Condition
Differential non-lin-
earity
Integral non-lineari-
ty
No missing codes
Min
Typ
Max
Unit
±1
LSB
±5
LSB
12
bits
3.12 Analog Comparator (ACMP)
Table 3.16. ACMP
Symbol
Parameter
Condition
Min
V_ACMPIN
V_ACMPCM
Input voltage range
ACMP Common
Mode voltage range
BIASPROG=0b0000, FULL-
BIAS=0 and HALFBIAS=1 in
ACMPn_CTRL register
I_ACMP
Active current
BIASPROG=0b1111, FULL-
BIAS=0 and HALFBIAS=0 in
ACMPn_CTRL register
BIASPROG=0b1111, FULL-
BIAS=1 and HALFBIAS=0 in
ACMPn_CTRL register
I_ACMPREF
Current consump-
tion of internal volt-
age reference
Internal voltage reference off.
Using external voltage refer-
ence
Internal voltage reference,
LPREF=1
Internal voltage reference,
LPREF=0
V_ACMPOFFSET Offset voltage
Single ended
Differential
V_ACMPHYST
ACMP hysteresis
Programmable
CSRESSEL=0b00 in
ACMPn_INPUTSEL
R_CSRES
Capacitive Sense
Internal Resistance
CSRESSEL=0b01 in
ACMPn_INPUTSEL
CSRESSEL=0b10 in
ACMPn_INPUTSEL
CSRESSEL=0b11 in
ACMPn_INPUTSEL
t_ACMPSTART
Startup time
Typ
0
0
Max
Unit
V_DD V
V_DD V
55
nA
2.82
µA
195
µA
0
µA
50
nA
6
µA
10
mV
10
mV
17
mV
39
kOhm
71
kOhm
104
kOhm
136
kOhm
10 µs
The total ACMP current is the sum of the contributions from the ACMP and its internal voltage reference
as given in Equation 3.1 (p. 42) . I_ACMPREF is zero if an external voltage reference is used.
Total ACMP Active Current
I_ACMPTOTAL = I_ACMP + I_ACMPREF
(3.1)
2013-11-22 - EFM32G840FXX - d0008_Rev1.71
42
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