PIC16F631_08 Datasheet, PDF (250/306 Pages) Microchip Technology – 20-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

PIC16F631/677/685/687/689/690
TABLE 17-7: COMPARATOR SPECIFICATIONS
Comparator Specifications
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +125°C
Param.
No.
Sym.
Characteristics
Min.
Typ.
Max.
Units Comments
CM01
VOS
Input Offset Voltage
—
± 5.0
± 10
mV
CM02
VCM
Input Common Mode Voltage
0
—
VDD - 1.5
V
CM03* CMRR
Common Mode Rejection Ratio
+55
—
—
db
CM04* TRT
Response Time
Falling
—
150
600
ns (Note 1)
Rising
—
200
1000
ns
CM05* TMC2COV Comparator Mode Change to Output
—
—
Valid
10
μs
* These parameters are characterized but not tested.
Note 1: Response time is measured with one comparator input at (VDD - 1.5)/2 - 100 mV to (VDD - 1.5)/2 + 20 mV.
TABLE 17-8: COMPARATOR VOLTAGE REFERENCE (CVREF) SPECIFICATIONS
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +125°C
Param
No.
Sym.
Characteristics
Min. Typ† Max. Units
Comments
CV01* CLSB Step Size⁽²⁾
— VDD/24 —
— VDD/32 —
V Low Range (VRR = 1)
V High Range (VRR = 0)
CV02* CACC Absolute Accuracy
—
— ± 1/2 LSb Low Range (VRR = 1)
—
— ± 1/2 LSb High Range (VRR = 0)
CV03* CR
CV04* CST
Unit Resistor Value (R)
Settling Time⁽¹⁾
—
2k
—
Ω
—
—
10
μs
* These parameters are characterized but not tested.
† Data in “Typ” column is at 5V, 25°C unless otherwise stated. These parameters are for design
guidance only and are not tested.
Note 1: Settling time measured while VRR = 1 and VR<3:0> transitions from ‘0000’ to ‘1111’.
2: See Section 8.10 “Comparator Voltage Reference” for more information.
TABLE 17-9: VOLTAGE (VR) REFERENCE SPECIFICATIONS
VR Voltage Reference Specifications
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +125°C
Param
No.
Symbol
Characteristics
Min. Typ.
VR01 VROUT VR voltage output
0.5
0.6
VR02* TSTABLE Settling Time
—
10
* These parameters are characterized but not tested.
Max.
0.7
100*
Units
V
μs
Comments
DS41262E-page 248
© 2008 Microchip Technology Inc.