Datasheet

PIC16F882/883/884/886/887
DS41291G-page 266  2006-2012 Microchip Technology Inc.
TABLE 17-7: COMPARATOR SPECIFICATIONS
TABLE 17-8: COMPARATOR VOLTAGE REFERENCE (CV
REF) SPECIFICATIONS
TABLE 17-9: VOLTAGE (VR) REFERENCE SPECIFICATIONS
Standard Operating Conditions (unless otherwise stated)
Operating Temperature -40°C T
A +125°C
Param
No.
Sym. Characteristics Min. Typ† Max. Units Comments
CM01 V
OS Input Offset Voltage —  5.0  10 mV (VDD - 1.5)/2
CM02 VCM Input Common Mode Voltage 0 — VDD - 1.5 V
CM03* C
MRR Common Mode Rejection Ratio +55 — — dB
CM04* TRT Response Time Falling — 150 600 ns (NOTE 1)
Rising — 200 1000 ns
CM05* T
MC2COV Comparator Mode Change to
Output Valid
—— 10 s
* 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 (V
DD - 1.5)/2 - 100 mV to (VDD -1.5)/2+20mV.
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C  T
A  +125°C
Param
No.
Sym. Characteristics Min. Typ† Max. Units Comments
CV01* C
LSB Step Size
(2)
—
—
VDD/24
V
DD/32
—
—
V
V
Low Range (VRR = 1)
High Range (VRR = 0)
CV02* C
ACC Absolute Accuracy —
—
—
—
 1/2
1/2
LSb
LSb
Low Range (VRR = 1)
High Range (VRR = 0)
CV03* C
R Unit Resistor Value (R) — 2k — 
CV04* CST Settling Time
(1)
——10s
* These parameters are characterized but not tested.
† Data in “Typ” column is at 5V, 25°C unless otherwise stated. These parameters are for design guid-
ance 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.
VR Voltage Reference Specifications
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C  T
A  +125°C
Param
No.
Symbol Characteristics Min. Typ. Max. Units Comments
VR01 V
ROUT VR voltage output 0.5 0.6 0.7 V
VR02* T
STABLE Settling Time — 10 100* s
* These parameters are characterized but not tested.