49.23 AC Electrical Specifications

Table 49-31. Analog Comparator Electrical Specifications ⁽¹⁾
AC CHARACTERISTICS			Standard Operating Conditions: VDD = AVDD = 1.62V to 3.63V (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	Input Offset Voltage	-70	—	70	mV	COMPCTRLn.SPEED = 0x0
			-55	—	55		COMPCTRLn.SPEED = 0x1
			-48	—	48		COMPCTRLn.SPEED = 0x2
			-42	—	42		COMPCTRLn.SPEED = 0x3
CMP_4	VIN	Input Voltage Range	AVSS	—	AVDD	V	With respect to AVSS and AVDD
CMP_5	VHYST	Input Hysteresis Voltage	10	—	74	mV	COMPCTRLn.HYSTEN = 0x1 COMPCTRLn.HYST = 0x0
			22	—	106		COMPCTRLn.HYSTEN = 0x1 COMPCTRLn.HYST = 0x1
			37	—	129		COMPCTRLn.HYSTEN = 0x1 COMPCTRLn.HYST = 0x2
			49	—	150		COMPCTRLn.HYSTEN = 0x1 COMPCTRLn.HYST = 0x3
CMP_15	TRESP_SS⁽³⁾	Small Signal Response Time	—	—	12.3	µs	Comparator ref voltage=AVDD/2, COMPCTRLn.HYSTEN = 0x0, COMPCTRLn.SPEED = 0x0, Input overdrive = ± 100mV
				—	2.6		Comparator ref voltage=AVDD/2, COMPCTRLn.HYSTEN = 0x0, COMPCTRLn.SPEED = 0x1, Input overdrive = ± 100mV
				—	1.4		Comparator ref voltage=AVDD/2, COMPCTRLn.HYSTEN = 0x0, COMPCTRLn.SPEED = 0x2, Input overdrive = ± 100mV
				—	0.77		Comparator ref voltage=AVDD/2, COMPCTRLn.HYSTEN = 0x0, COMPCTRLn.SPEED = 0x3, Input overdrive = ± 100mV
CMP_19	COUTVAL	Comparator Enabled to Output Valid	—	—	71	µs	COMPCTRLn.SPEED = 0x0
				—	4.5		COMPCTRLn.SPEED = 0x1
				—	3.2		COMPCTRLn.SPEED = 0x2
				—	2.7		COMPCTRLn.SPEED = 0x3
CMP_21	AC_IREF	Comparator Internal Band Gap Voltage Reference	VR_9, VR_25, VR_27			V	VR_9, VR_25, VR_27: Refer to Internal Voltage Reference Specifications.
CMP_23	C_VREFRNG	Comparator Voltage Reference Input Range	Note ⁽²⁾	—	AVDD-0.1 or Note ⁽²⁾ whichever is lower	V	—
CMP_25	f_{GCLK_AC}	Comp digital input Clk Freq	—	—	FCLK_49	MHz	FCLK_49: Refer to Maximum Clock Frequencies Electrical Specifications
Note: Typical values at 25°C only. Comparator Ref voltage cannot exceed (VIN(max) - VIOFF(max) - CMP_5(max) - 50mV) ≥ C_VREFRNG ≥ (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.