Datasheet

PIC18F2420/2520/4420/4520
DS39631B-page 338 Preliminary © 2007 Microchip Technology Inc.
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 VIOFF Input Offset Voltage — ±5.0 ±10 mV
D301 V
ICM Input Common Mode Voltage* 0 — VDD – 1.5 V
D302 CMRR Common Mode Rejection Ratio* 55 — — dB
300 TRESP Response Time
(1)*
— 150 400 ns PIC18FXXXX
300A — 150 600 ns PIC18LFXXXX,
V
DD = 2.0V
301 TMC2OV 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 VRES Resolution VDD/24 — VDD/32 LSb
D311 VR
AA Absolute Accuracy — — 1/2 LSb Low Range (CVRR = 1)
D312 VRUR Unit Resistor Value (R)* — 2k — Ω
310 TSET Settling Time
(1)*
— — 10 μs
* These parameters are characterized but not tested.
Note 1: Settling time measured while CVRR = 1 and CVR3:CVR0 transitions from ‘0000’ to ‘1111’.