Datasheet

PIC16F526
DS41326E-page 88  2010 Microchip Technology Inc.
TABLE 14-2: COMPARATOR SPECIFICATIONS.
TABLE 14-3: COMPARATOR VOLTAGE REFERENCE (V
REF) SPECIFICATIONS
Comparator Specifications
Standard Operating Conditions (unless otherwise stated)
Operating temperature -40°C to 125°C
Characteristics Sym. Min. Typ. Max. Units Comments
Internal Voltage Reference
V
IVRF
0.50 0.60 0.70 V
Input offset voltage
V
OS
—  5.0  10 mV
Input common mode voltage* VCM 0—VDD – 1.5 V
CMRR* C
MRR 55 — — db
Response Time
(1)*
TRT
— 150 400 ns
Comparator Mode Change to
Output Valid*
T MC 2 COV —— 10 s
* These parameters are characterized but not tested.
Note 1: Response time measured with one comparator input at (VDD – 1.5)/2 while the other input transitions from
V
SS to VDD – 1.5V.
Sym. Characteristics Min. Typ. Max. Units Comments
CVRES Resolution —
—
VDD/24*
V
DD/32
—
—
LSb
LSb
Low Range (V
RR = 1)
High Range (V
RR = 0)
Absolute Accuracy
(2)
—
—
—
—
±1/2*
±1/2*
LSb
LSb
Low Range (VRR = 1)
High Range (V
RR = 0)
Unit Resistor Value (R) —
—
2K* — 
Settling Time
(1)
——10*s
* These parameters are characterized but not tested.
Note 1: Settling time measured while VRR = 1 and VR<3:0> transitions from 0000 to 1111.
2: Do not use reference externally when V
DD < 2.7V. Under this condition, reference should only be used
with comparator Voltage Common mode observed.