Datasheet

© 2007 Microchip Technology Inc. DS39629C-page 365
PIC18F6390/6490/8390/8490
TABLE 26-2: COMPARATOR SPECIFICATIONS
TABLE 26-3: VOLTAGE REFERENCE SPECIFICATIONS
Operating Conditions: 3.0V < VDD < 5.5V, -40°C < TA < +85°C, unless otherwise stated.
Param
No.
Sym Characteristics Min Typ Max Units Comments
D300 V
IOFF Input Offset Voltage — ±5.0 ±10 mV
D301 VICM Input Common Mode Voltage* 0 — VDD – 1.5 V
D302 CMRR Common Mode Rejection Ratio* 55 — — dB
300 T
RESP Response Time*
(1)
— 150 400 ns PIC18FXXXX
300A — 150 600 ns PIC18LFXXXX,
V
DD = 2.0V
301 T
MC2OV Comparator Mode Change to
Output Valid*
—— 10μs
* These parameters are characterized but not tested.
Note 1: Response time measured with one comparator input at (V
DD – 1.5)/2, while the other input transitions
from V
SS to VDD.
Operating Conditions: 3.0V < VDD < 5.5V, -40°C < TA < +85°C, unless otherwise stated.
Param
No.
Sym Characteristics Min Typ Max Units Comments
D310 V
RES Resolution VDD/24 — VDD/32 LSb
D311 VR
AA Absolute Accuracy — — 1/2 LSb
D312 VRUR Unit Resistor Value (R) — 2k — Ω
310 T
SET Settling Time
(1)
— — 10 μs
Note 1: Settling time measured while CVRR = 1 and CVR3:CVR0 transitions from ‘0000’ to ‘1111’.