PIC18F23K20-ESLASHML datasheet(381/456 Pages) MICROCHIP

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 2010 Microchip Technology Inc.

DS41303G-page 381

PIC18F2XK20/4XK20

26.11 Analog Characteristics

TABLE 26-1:

COMPARATOR SPECIFICATIONS

TABLE 26-2:

CVREF VOLTAGE REFERENCE SPECIFICATIONS

TABLE 26-3:

FIXED VOLTAGE REFERENCE (FVR) SPECIFICATIONS

Operating Conditions: 1.8V < VDD < 3.6V, -40°C < TA < +125°C (unless otherwise stated).

Param

No.

Sym

Characteristics

Min

Typ

Max

Units

Comments

CM01

VIOFF

Input Offset Voltage

—

VREF = VDD/2,

High Power Mode

—12

VREF = VDD/2,

Low Power Mode

CM02

VICM

Input Common-mode Voltage

VSS

—VDD

CM04

TRESP

Response Time

—

200

400

High Power Mode

—

300

600

Low Power Mode

CM05

TMC2OV

Comparator Mode Change to

Output Valid*

——

s

These parameters are characterized but not tested.

Note 1:

Response time measured with one comparator input at VDD/2, while the other input transitions

from VSS to VDD.

Operating Conditions: 1.8V < VDD < 3.6V, -40°C < TA < +125°C (unless otherwise stated).

Param

No.

Sym

Characteristics

Min

Typ

Max

Units

Comments

CV01*

CLSB

Step Size(2)

—

VDD/24

VDD/32

—

Low Range (VRR = 1)

High Range (VRR = 0)

CV02*

CACC

Absolute Accuracy

—

1/2

LSb

CV03*

Unit Resistor Value (R)

—



CV04*

CST

Settling Time(1)

—7.5

s

These parameters are characterized but not tested.

Note 1:

Settling time measured while CVRR = 1 and CVR3:CVR0 transitions from ‘0000’ to ‘1111’.

See Section 21.1 “Comparator Voltage Reference” for more information.

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

 TA  +125°C

Param

No.

Sym

Characteristics

Min

Typ

Max

Units

Comments

VR01

VROUT

VR voltage output

1.15

1.20

1.25

-40°C to +85°C

1.10

1.20

1.30

+85°C to +125°C

VR02*

TCVOUT

Voltage drift temperature

coefficient

—

<50

—

ppm/

C -40°C to +40°C (See

Figure 27-34)

VR03*

VROUT/

VDD

Voltage drift with respect to

VDD regulation

—

<2000

—

V/V

25°C, 2.0 to 3.3V (See

Figure 27-33)

VR04*

TSTABLE

Settling Time

—

100

s

0 to 125°C

These parameters are characterized but not tested.

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