64GA106 datasheet(286/330 Pages) MICROCHIP

286 / 330 page

PIC24FJ256GA110 FAMILY

DS39905E-page 286

 2010 Microchip Technology Inc.

TABLE 28-19: ADC MODULE SPECIFICATIONS

AC CHARACTERISTICS

Standard Operating Conditions: 2.0V to 3.6V

(unless otherwise stated)

Operating temperature

-40°C

 TA  +85°C for Industrial

-40°C

 TA  +125°C for Extended

Param

No.

Symbol

Characteristic

Min.

Typ

Max.

Units

Conditions

Device Supply

AD01

AVDD

Module VDD Supply

Greater of

VDD – 0.3

or 2.0

—Lesser of

VDD + 0.3

or 3.6

AD02

AVSS

Module VSS Supply

VSS – 0.3

—

VSS + 0.3

Reference Inputs

AD05

VREFH

Reference Voltage High

AVSS + 1.7

—

AVDD

AD06

VREFL

Reference Voltage Low

AVSS

—AVDD – 1.7

AD07

VREF

Absolute Reference

Voltage

AVSS – 0.3

—

AVDD + 0.3

AD08

IVREF

Reference Voltage Input

Current

——

1.25

(Note 3)

AD09

ZVREF

Reference Input

Impedance

—10K

—



(Note 4)

Analog Input

AD10

VINH-VINL Full-Scale Input Span

VREFL

—VREFH

(Note 2)

AD11

VIN

Absolute Input Voltage

AVSS – 0.3

—

AVDD + 0.3

AD12

VINL

Absolute VINL Input

Voltage

AVSS – 0.3

AVDD/2

AD17

RIN

RecommendedImpedance

of Analog Voltage Source

—

2.5K



10-bit

ADC Accuracy

AD20b NR

Resolution

—

bits

AD21b INL

Integral Nonlinearity

—

±1

<±2

LSb

VINL = AVSS = VREFL = 0V,

AVDD = VREFH = 3V

AD22b DNL

Differential Nonlinearity

—

±0.5

<±1

LSb

VINL = AVSS = VREFL = 0V,

AVDD = VREFH = 3V

AD23b GERR

Gain Error

—

±1

±3

LSb

VINL = AVSS = VREFL = 0V,

AVDD = VREFH = 3V

AD24b EOFF

Offset Error

—

±1

±2

LSb

VINL = AVSS = VREFL = 0V,

AVDD = VREFH = 3V

AD25b —

Monotonicity(1)

—

Guaranteed

Note 1:

The ADC conversion result never decreases with an increase in the input voltage and has no missing codes.

Measurements taken with external VREF+ and VREF- are used as the ADC voltage reference.

External reference voltage applied to VREF+/- pins. IVREF is current during conversion at 3.3V, 25°C.

Parameter is for design guidance only and is not tested.

Impedance during sampling is at 3.3V, 25°C. Parameter is for design guidance only and is not tested.

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