46.19 Analog Comparator (AC) Electrical Specifications

Table 46-25. Analog Comparator Electrical Specifications
AC CHARACTERISTICS			Standard Operating Conditions: VDD and VDDIO 2.7V to 5.5V (unless otherwise stated) Operating temperature: -40°C ≤ T_A ≤ +85°C for Industrial
Param. No.	Symbol	Characteristics	Min.	Typ.	Max.	Units	Conditions
CMP_1	VIOFF_00	Input Offset Voltage	-26	—	26	mV	COMPCTRLx.HYST = 0x0 COMPCTRLx.SPEED = 0x0
	VIOFF_01		-32	—	32	mV	COMPCTRLx.HYST = 0x1 COMPCTRLx.SPEED = 0x0
	VIOFF_02		-14	—	14	mV	COMPCTRLx.HYST = 0x0 COMPCTRLx.SPEED = 0x3
	VIOFF_03		-16	—	16	mV	COMPCTRLx.HYST = 0x1 COMPCTRLx.SPEED = 0x3
CMP_4	VIN	Input Voltage Range	AVSS	—	AVDD	mV	With respect to GND and AVDD
CMP_5	VHYST_00	Input Hysteresis Voltage	25	—	161	mV	COMPCTRLx.HYST = 0x1 COMPCTRLx.SPEED = 0x0
CMP_5	VHYST_01	Input Hysteresis Voltage	50	—	141	mV	COMPCTRLx.HYST = 0x1 COMPCTRLx.SPEED = 0x3
CMP_15	TRE_{SPSS_LS}⁽²⁾	Small Signal Response Time, low speed	—	—	219	ns	Comparator ref voltage=AVDD/2 COMPCTRLx.HYST = 0x0 Input overdrive = ± 100mv COMPCTRL.SPEED = 0x0
CMP_17	TRE_{SPSS_HS}⁽²⁾	Small Signal Response Time, high speed	—	—	65	ns	Comparator ref voltage=AVDD/2 COMPCTRLx.HYST = 0x0 Input overdrive = ± 100mv COMPCTRLx.SPEED = 0x3
CMP_19	COUTVAL_01	Comparator Enabled to Output Valid	—	—	12.7	ms	Comparator module is configured before enabling it COMPCTRLx.SPEED = 0x0
CMP_19	COUTVAL_02	Comparator Enabled to Output Valid	—	—	3.8	ms	Comparator module is configured before enabling it COMPCTRLx.SPEED = 0x3
CMP_21	ACIREF	Comparator Internal Band Gap Voltage Reference	VR_9, VR_11, VR_13, VR_25, VR_27			V	VR_9, VR_11, VR_13, VR_25, VR_27: Refer to Internal Voltage Reference Specifications
CMP_23	CVREFRNG	Comparator Voltage Reference Input Range	⁽¹⁾	—	AVDD-1V or Note (1), whichever is lower	V	-
CMP_25	f_{GCLK_AC}	Analog comparator peripheral module clock freq	—	—	FCLK_49	MHz	See parameter FCLK_49 in Maximum Clock Frequency Table

Note:

Comparator Ref voltage cannot exceed (VIN(max) - VIOFF(max) - CMP_5(max) - 50mV) ≥ CMP V_REFRNG ≥ (VIN(min) + abs(VIOFF(min)) + (CMP_5(max) + 50mV)).
TRESP_{SS_XX} is measured from Vin transition to CMPx output toggle. It takes into account only analog propagation delay.