PIC18LF448T-I/SP View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18LF448T-I/SP

28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module

Microchip Technology 

PIC18FXX8

TABLE 27-23: A/D CONVERTER CHARACTERISTICS: PIC18FXX8 (INDUSTRIAL, EXTENDED)

PIC18LFXX8 (INDUSTRIAL)

Param

No.

Symbol

Characteristic

Min

Typ

Max Units

Conditions

A01 NR

Resolution

—

—

10

bit VREF = VDD ≥ 3.0V

A03 EIL

Integral Linearity Error

—

—

<±1

LSb VREF = VDD ≥ 3.0V

A04 EDL Differential Linearity Error

—

—

<±1

LSb VREF = VDD ≥ 3.0V

A05 EFS

Full Scale Error

—

—

<±1

LSb VREF = VDD ≥ 3.0V

A06 EOFF Offset Error

A10 —

Monotonicity(3)

—

—

<±1.5

guaranteed

LSb VREF = VDD ≥ 3.0V

— VSS ≤ VAIN ≤ VREF

A20 VREF

A20A

Reference Voltage

(VREFH – VREFL)

0V

—

3V

—

—

V

—

V For 10-bit resolution

A21 VREFH Reference Voltage High

VSS

— VDD + 0.3V V

A22 VREFL Reference Voltage Low

VSS – 0.3V —

VDD

V

A25 VAIN Analog Input Voltage

VSS – 0.3V — VREF + 0.3V V

A30 ZAIN Recommended Impedance of

—

Analog Voltage Source

—

10.0

kΩ

A40 IAD

A/D Conversion PIC18FXX8

—

180

Current (VDD) PIC18LFXX8

—

90

—

μA Average current

—

μA consumption when

A/D is on (Note 1)

A50 IREF VREF Input Current (Note 2)

0

—

5

μA During VAIN acquisition.

Based on differential of

VHOLD to VAIN. To

charge CHOLD.

—

—

150

μA During A/D conversion

cycle.

Note 1:

When A/D is off, it will not consume any current other than minor leakage current. The power-down current

specification includes any such leakage from the A/D module.

VREF current is from RA2/AN2/VREF- and RA3/AN3/VREF+ pins or VDD and VSS pins, whichever is selected

as reference input.

2: VSS ≤ VAIN ≤ VREF

3: The A/D conversion result never decreases with an increase in the input voltage and has no missing

codes.

DS41159E-page 358

© 2006 Microchip Technology Inc.

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