Datasheet

 2010 Microchip Technology Inc. Preliminary DS41412C-page 439
PIC18(L)F2X/4XK22
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 — 12 mV High-Power mode
— 18 mV Low-Power mode
CM02 V
ICM Input Common-mode Voltage — VDD V
CM03 CMRR Common-mode Rejection Ratio — — dB
CM04 T
RESP Response Time — 200 ns High-Power mode
(1)
— 300 ns Low-Power mode
CM05 T
MC2OV Comparator Mode Change to
Output Valid*
—— 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: 1.8V < 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* CACC Absolute Accuracy — — 1/2 LSb
CV03* CR Unit Resistor Value (R) — 5k — 
CV04* CST Settling Time
(1)
——10s
* 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.
TABLE 27-3: FIXED VOLTAGE REFERENCE (FVR) SPECIFICATIONS
Operating Conditions: 1.8V < VDD < 3.6V, -40°C < TA < +125°C (unless otherwise stated)
VR Voltage 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
VR01 VROUT VR voltage output 0.92 1.024 1.13 V 1x output, VDD 1.8V
1.84 2.048 2.26 V 2x output, V
DD 2.5V
3.70 4.096 4.50 V 4x output, VDD 4.75V
VR04* TSTABLE Settling Time — 25 100 s 0 to 125°C
* These parameters are characterized but not tested.