PIC18LF4420T-I/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18LF4420T-I/SO

28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

Microchip Technology 

PIC18F2420/2520/4420/4520

TABLE 26-24: A/D CONVERTER CHARACTERISTICS: PIC18FX42X/X52X (INDUSTRIAL)

PIC18LFX42X/X52X (INDUSTRIAL)

Param

No.

Symbol

Characteristic

Min

Typ

Max Units

Conditions

A01 NR

Resolution

—

—

10

bit ∆VREF ≥ 3.0V

A03 EIL

Integral Linearity Error

—

—

<±1

LSb ∆VREF ≥ 3.0V

A04 EDL Differential Linearity Error

—

—

<±1

LSb ∆VREF ≥ 3.0V

A06 EOFF Offset Error

—

—

<±1

LSb ∆VREF ≥ 3.0V

A07 EGN

A10 —

Gain Error

Monotonicity

—

—

<±1

Guaranteed(1)

LSb ∆VREF ≥ 3.0V

— VSS ≤ VAIN ≤ VREF

A20 ∆VREF Reference Voltage Range

(VREFH – VREFL)

1.8

—

3

—

—

V VDD < 3.0V

—

V VDD ≥ 3.0V

A21 VREFH Reference Voltage High

VSS

—

VREFH

V

A22 VREFL Reference Voltage Low

VSS – 0.3V — VDD – 3.0V V

A25 VAIN Analog Input Voltage

VREFL

—

VREFH

V

A30 ZAIN Recommended Impedance of

—

—

2.5

kΩ

Analog Voltage Source

A50 IREF VREF Input Current(2)

—

—

5

µA During VAIN acquisition.

—

—

150

µA During A/D conversion

cycle.

Note 1: The A/D conversion result never decreases with an increase in the input voltage and has no missing codes.

2: VREFH current is from RA3/AN3/VREF+ pin or VDD, whichever is selected as the VREFH source.

VREFL current is from RA2/AN2/VREF-/CVREF pin or VSS, whichever is selected as the VREFL source.

DS39631A-page 358

Preliminary

 2004 Microchip Technology Inc.

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