43.21 Analog Comparator (AC) Electrical Specifications

Table 43-30. Analog Comparator Module Electrical Specifications
AC CHARACTERISTICS			Standard Operating Conditions: VDD and VDDIO 2.7V to 5.5V (unless otherwise stated) Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
Param. No.	Symbol	Characteristics	Min.	Typical⁽¹⁾	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_3	VICM	Input Common Mode Voltage	GNDNANA	—	VDDANA - 0.5V	V
CMP_4	VIN	Input Voltage Range	GNDANA	—	VDDANA	V	With respect to GND and VDDANA
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	TRESP_{SS_LS}⁽⁴⁾	Small Signal Response Time, low speed	—	—	219	ns	Comparator ref voltage=VDDANA/2 COMPCTRLx.HYST = 0x0 Input overdrive = ± 100mv COMPCTRL.SPEED = 0x0
CMP_17	TRESP_{SS_HS}⁽⁴⁾	Small Signal Response Time, high speed	—	—	65	ns	Comparator ref voltage=VDDANA/2 COMPCTRLx.HYST = 0x0 Input overdrive = ± 100mv COMPCTRLx.SPEED = 0x3
CMP_19	C_OUTVAL_01	Comparator Enabled to Output Valid	—	—	12.7	ms	Comparator module is configured before enabling it COMPCTRLx.SPEED = 0x0
CMP_19	C_OUTVAL_02	Comparator Enabled to Output Valid	—	—	3.8	ms	Comparator module is configured before enabling it COMPCTRLx.SPEED = 0x3
CMP_21	AC_IREF	Comparator Internal Band Gap Voltage Reference	⁽³⁾	⁽³⁾	⁽³⁾	V	See ACIREF Spec Parameters: VR_9-VR_13
CMP_23	C_VREFRNG	Comparator Voltage Reference Input Range	⁽²⁾	—	⁽²⁾	V	See NOTE(2)
CMP_25	F_{GCLK_AC}	Analog comparator peripheral module clock freq	—	—	FCLK_49	MHz	See parameter FCLK_49 in Maximum Clock Frequency Table
Note: Values in TYPICAL column are taken at 25°C. Comparator Ref voltage cannot exceed (VIN(max) - VIOFF(max) - (CMP_5(max) + 50mV)) ≥ CMP VREF ≥ (VIN(min) + VIOFF(min) + (CMP_5(max) + 50mV)). See Internal Voltage Ref Spec Parameters: VR_9-VR_13. TRESP is measured from Vin transition to ACOUT (AC direct output) toggle. It takes into account only analog propagation delay.