PIC16F753 datasheet(194/230 Pages) MICROCHIP

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PIC16F753/HV753

DS40001709C-page 194

 2013-2015 Microchip Technology Inc.

TABLE 22-18: ANALOG-TO-DIGITAL CONVERTER (ADC) CHARACTERISTICS(1,2,3)

Standard Operating Conditions (unless otherwise stated)

VDD = 3.0V, TA = 25°C

Param

No.

Sym.

Characteristic

Min.

Typ†

Max.

Units

Conditions

AD01

Resolution

—

bit

AD02

EIL

Integral Error

—

1LSb VREF = 3.0V

AD03

EDL

Differential Error

—

1

LSb No missing codes

VREF = 3.0V

AD04

EOFF

Offset Error

—

1.5

3.0

LSb VREF = 3.0V

AD05

EGN

Gain Error

—

1.0

LSb VREF = 3.0V

AD06

VREF

Reference Voltage

2.2

2.5

—

VDD

Absolute minimum to ensure 1 LSb

accuracy

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.

AD09* IREF

VREF Input Current

—

1000

ADuring VAIN acquisition.

Based on differential of VHOLD to VAIN.

——

A During A/D conversion cycle.

These parameters are characterized but not tested.

† Data in “Typ” column is at 5V, 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.

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

codes.

See Section 23.0 “DC and AC Characteristics Graphs and Charts” for operating characterization.

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