User's Manual

4.1.14 Analog Comparator (ACMP)
Table 4.22. ACMP
Parameter Symbol Test Condition Min Typ Max Unit
Input voltage range V
ACMPIN
CMPVDD =
ACMPn_CTRL_PWRSEL
1
0 — CMPVDD V
Active current not including
voltage reference
I
ACMP
BIASPROG
2
= 1, FULLBIAS
2
= 0
— 50 — nA
BIASPROG
2
= 0x10, FULLBIAS
2
= 0
— 306 — nA
BIASPROG
2
= 0x20, FULLBIAS
2
= 1
— 74 TBD μA
Current consumption of inter-
nal voltage reference,
I
ACMPREF
VLP selected as input using 2.5 V
Reference / 4 (0.625 V)
— 50 — nA
VLP selected as input using VDD — 20 — nA
VBDIV selected as input using
1.25 V reference / 1
— 4.1 — μA
VADIV selected as input using
VDD/1
— 2.4 — μA
Hysteresis V
ACMPHYST
HYSTSEL
3
= HYST0
— 0 TBD mV
HYSTSEL
3
= HYST1
— 12 — mV
HYSTSEL
3
= HYST2
— 22 — mV
HYSTSEL
3
= HYST3
— 30 — mV
HYSTSEL
3
= HYST4
— 36 — mV
HYSTSEL
3
= HYST5
— 41 — mV
HYSTSEL
3
= HYST6
— 47 — mV
HYSTSEL
3
= HYST7
— 52 — mV
Comparator delay t
ACMPDELAY
BIASPROG
2
= 1, FULLBIAS
2
= 0
4
— 30 — μs
BIASPROG
2
= 0x10, FULLBIAS
2
= 0
4
— 3.7 — μs
BIASPROG
2
= 0x20, FULLBIAS
2
= 1
4
— 35 — ns
Offset voltage V
ACMPOFFSET
BIASPROG
2
=0x20, FULLBIAS
2
= 1
4
— — TBD mV
Reference Voltage V
ACMPREF
Internal 1.25 V reference TBD 1.25 TBD V
Internal 2.5 V reference TBD 2.5 TBD V
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Electrical Specifications
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