51.20 Comparator Electrical Specifications

Table 51-28. Comparator AC Electrical Specifications
AC CHARACTERISTICS Standard Operating Conditions: VDDREG=VDDIO=AVDD 1.71V to 3.63V (unless otherwise stated)

Operating temperature:

-40°C ≤ TA ≤ +85°C for Industrial

Param. No. Symbol Characteristics Min. Typ.(1) Max. Units Conditions
CMP_1 VIOFF Input Offset Voltage -8 8 mV COMPCTRLn.HYST = 0x3.

Comparator ref voltage = AVDD/2

CMP_4 VIN Input Voltage Range AVSS AVDD V With respect to GND and AVDD
CMP_5 VHYST_00 Input Hysteresis Voltage 2 14 mV COMPCTRLn.HYST = 0x0.

Comparator ref voltage = AVDD/2

VHYST_01 Input Hysteresis Voltage 6 26 mV COMPCTRLn.HYST = 0x1.

Comparator ref voltage = AVDD/2

VHYST_02 Input Hysteresis Voltage 20 56 mV COMPCTRLn.HYST = 0x2.

Comparator ref voltage = AVDD/2

VHYST_03 Input Hysteresis Voltage 34 85 mV COMPCTRLn.HYST = 0x3.

Comparator ref voltage = AVDD/2

CMP_15 TRESPSS ain<0:1> Small Signal Response Time - High speed 64 ns COMPCTRLn.SPEED = 0x0

COMPCTRLn.MUXPOS=0x0

COMPCTRLn.MUXNEG=0x1

COMPCTRLn.HYST = 0x3

Comparator ref voltage = AVDD/2.

Input overdrive = +/- 180mV

Small Signal Response Time - Low Speed 260 ns COMPCTRLn.SPEED = 0x1

COMPCTRLn.MUXPOS=0x0

COMPCTRLn.MUXNEG=0x1

COMPCTRLn.HYST = 0x3

Comparator ref voltage = AVDD/2.

Input overdrive = +/- 180mV

TRESPSS ain<2:3> Small Signal Response Time - High speed 100 ns COMPCTRLn.SPEED = 0x0

COMPCTRLn.MUXPOS=0x2

COMPCTRLn.MUXNEG=0x3

COMPCTRLn.HYST = 0x3

Comparator ref voltage = AVDD/2.

Input overdrive = +/- 180mV

Small Signal Response Time - Low Speed 260 ns COMPCTRLn.SPEED = 0x1

COMPCTRLn.MUXPOS=0x2

COMPCTRLn.MUXNEG=0x3

COMPCTRLn.HYST = 0x3

Comparator ref voltage = AVDD/2.

Input overdrive = +/- 180mV

CMP_19 COUTVAL Comparator Enabled to Output Valid - High Speed 2 ms Comparator module is configured before enabling it

COMPCTRLn.SPEED = 0x0

Comparator Enabled to Output Valid - Low Speed 20 ms Comparator module is configured before enabling it

COMPCTRLn.SPEED = 0x1

CMP_23 CVREFRNG Comparator Voltage Reference Input Range V (1)
CMP_25 FGCLK_AC Analog comparator peripheral module clock freq FCLK_49 MHz See FCLK_49 in Maximum Clock Frequencies table
Note:
  1. Comparator Ref voltage cannot exceed: VIN(max) - VIOFF(max) - CMP_5(max) - 100mV) ≥CMP_23 ≥ (VIN(min) + abs(VIOFF(min)) + CMP_5(max) + 100mV).
Table 51-29. DAC Module AC Electrical Specifications
AC CHARACTERISTICS Standard Operating Conditions: VDDREG=VDDIO=AVDD 1.71V to 3.63V (unless otherwise stated)

Operating temperature:

-40°C ≤ TA ≤ +85°C for Industrial

Param. No. Symbol Characteristics Min. Typ.(1) Max. Units Conditions
DAC_1 DRES DAC Resolution 7 Bits
DAC_7 VOUT Output Voltage Range AVSS AVDD - 1LSB V
DAC_17 Tset_FS DAC Full Scale Settling Time 1.5 µs +/-4 LSB of final value for step size from 10% to 90%
DAC_18A Thold DAC Holding Time 0.29 ms This parameter applies only for Low power mode:

DACCTRLn.SHENm=0x1

Time for 1 LSB voltage loss of the DAC output

DAC_18B 0.65 ms This parameter applies only for Low power mode:

DACCTRLn.SHENm=0x1

Time for 10 LSB voltage loss of the DAC output

SDAC_19 INL Integral Non Linearity -0.4 0.4 LSB
SDAC_21 DNL Differential Non Linearity 0.05 0.4 LSB
SDAC_23 GERR Gain Error -1.2 -0.2 LSB
SDAC_25 EOFF Offset Error -0.7 0.7 LSB Mode Normal:

DACCTRLn.SHENm=0x0

-5.7 5.7 LSB Low Power Mode:

DACCTRLn.SHENm=0x1