Datasheet

PIC18(L)F2X/4XK22
DS41412F-page 444  2010-2012 Microchip Technology Inc.
27.10 Analog Characteristics
TABLE 27-1: COMPARATOR SPECIFICATIONS
Operating Conditions: 1.8V < VDD < 5.5V, -40°C < TA < +125°C (unless otherwise stated)
Param
No.
Sym Characteristics Min Typ Max Units Comments
CM01 V
IOFF Input Offset Voltage — 3 40 mV High-Power mode
VREF = VDD/2
— 4 60 mV Low-Power mode
VREF = VDD/2
CM02 V
ICM Input Common-mode Voltage
VSS
—VDD V
CM04* T
RESP Response Time
(1)
— 200 400 ns High-Power mode
— 600 3500 ns Low-Power mode
CM05* T
MC2OV Comparator Mode Change to
Output Valid
——10s
* These parameters are characterized but not tested.
Note 1: Response time measured with one comparator input at V
DD/2, while the other input transitions from VSS to VDD.
TABLE 27-2: DIGITAL-TO-ANALOG CONVERTER (DAC) SPECIFICATIONS
Operating Conditions: 2.0V < VDD < 5.5V, -40°C < TA < +125°C (unless otherwise stated)
Param
No.
Sym Characteristics Min Typ Max Units Comments
CV01* C
LSB Step Size
(2)
—VDD/32 — V
CV02* C
ACC Absolute Accuracy — — 1/2 LSb VSRC 2.0V
CV03* CR Unit Resistor Value (R) — 5k — 
CV04* C
ST Settling Time
(1)
——10s
CV05* V
SRC+ DAC Positive Reference VSRC- +2 — VDD V
CV06* V
SRC- DAC Negative Reference VSS —VSRC+ -2 V
CV07* V
SRC DAC Reference Range
(V
SRC+ - VSRC-)
2—V
DD V
* These parameters are characterized but not tested.
Note 1: Settling time measured while CVRR = 1 and CVR3:CVR0 transitions from ‘0000’ to ‘1111’.
2: See Section 22.0 “Digital-to-Analog Converter (DAC) Module” for more information.