PIC12F1822-ISLASHMF datasheet(355/398 Pages) MICROCHIP

355 / 398 page

 2010 Microchip Technology Inc.

Preliminary

DS41413A-page 355

PIC12F/LF1822/16F/LF1823

TABLE 29-8:

PIC12F/LF1822/16F/LF1823 A/D CONVERTER (ADC) CHARACTERISTICS:

TABLE 29-9:

PIC12F/LF1822/16F/LF1823 A/D CONVERSION REQUIREMENTS

Standard Operating Conditions (unless otherwise stated)

Operating temperature

-40°C

 TA  +125°C

Param

No.

Sym.

Characteristic

Min.

Typ†

Max. Units

Conditions

AD01

Resolution

—

bit

AD02

EIL

Integral Error

—

±1.7

LSb VREF = 3.0V

AD03

EDL

Differential Error

—

±1

LSb No missing codes

VREF = 3.0V

AD04

EOFF Offset Error

—

±2

LSb VREF = 3.0V

AD05

EGN

Gain Error

—

±1.5

LSb VREF = 3.0V

AD06

VREF Reference Voltage(3)

1.8

—

VDD

AD07

VAIN

Full-Scale Range

VSS

—VREF

AD08

ZAIN

Recommended Impedance of

Analog Voltage Source

——

 Can go higher if external 0.01F capacitor is

present on input pin.

These parameters are characterized but not tested.

†

Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not

tested.

Note 1: Total Absolute Error includes integral, differential, offset and gain errors.

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

3: ADC VREF is from external VREF, VDD pin or FVREF, whichever is selected as reference input.

4: When ADC is off, it will not consume any current other than leakage current. The power-down current specification

includes any such leakage from the ADC module.

Standard Operating Conditions (unless otherwise stated)

Operating temperature

-40°C

 TA  +125°C

Param

No.

Sym.

Characteristic

Min.

Typ†

Max.

Units

Conditions

AD130* TAD

A/D Clock Period

1.0

—

9.0

sTOSC-based

A/D Internal RC Oscillator

Period

1.0

1.6

6.0

s

ADCS<1:0> = 11 (ADRC mode)

AD131

TCNV

Conversion Time (not including

Acquisition Time)(1)

—11

—

TAD

Set GO/DONE bit to conversion

complete

AD132* TACQ

Acquisition Time

—

5.0

—

s

These parameters are characterized but not tested.

†

Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not

tested.

Note 1: The ADRES register may be read on the following TCY cycle.

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