PIC16F882-I Datasheet, PDF (264/328 Pages) Microchip Technology – 28/40/44-Pin, Enhanced Flash-Based 8-Bit CMOS Microcontrollers

PIC16F882/883/884/886/887
TABLE 17-7: 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 (VDD - 1.5)/2
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.
† 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: 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. Max. Units
Comments
VR01 VROUT VR voltage output
0.5
0.6
0.7
V
VR02* TSTABLE Settling Time
—
10
100*
μs
* These parameters are characterized but not tested.
DS41291F-page 262
© 2009 Microchip Technology Inc.