Microchip Technology AC244045 Data Sheet

 2010-2012 Microchip Technology Inc.

DS41440C-page 367

Standard Operating Conditions (unless otherwise stated)
Operating temperature

-40°C 

 T

A

 

 +125°C

AD01

N

R

Resolution

—

—

10

bit

AD02

E

IL

Integral Error

—

—

±1.7

LSb V

REF

 = 3.0V

AD03

E

DL

Differential Error

—

—

±1

LSb No missing codes

V

REF

 = 3.0V

AD04

E

OFF

Offset Error

—

—

±2.5

LSb V

REF

 = 3.0V

AD05

E

GN

Gain Error

—

—

±2.0

LSb V

REF

 = 3.0V

AD06

V

REF

Reference Voltage

1.8

—

V

DD

V

V

REF

 = (V

REF

+ minus V

REF

-)

AD07

V

AIN

Full-Scale Range

V

SS

—

V

REF

V

AD08

Z

AIN

Recommended Impedance of 
Analog Voltage Source

—

—

10

k

 Can go higher if external 0.01F capacitor is 

present on input pin.

†

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 V

REF

 is from external V

REF

, V

DD

 pin or FVR, whichever is selected as reference input.

4: ADC Reference Voltage (

REF

+) is the selected input, V

REF

+ pin, V

DD

 pin or the FVR Buffer1. When the FVR is selected as 

the reference input, the FVR Buffer1 output selection must be 2.048 or 4.096V (ADFVR<1:0> = 1x).

Standard Operating Conditions (unless otherwise stated)
Operating temperature

-40°C 

 T

A

 

 +125°C

AD130* T

AD

A/D Clock Period

1.0

—

9.0

s

T

OSC

-based

A/D Internal RC Oscillator 
Period

1.0

2.5

6.0

s

ADCS<1:0> = 11 (ADRC mode)

AD131

T

CNV

Conversion Time (not including 
Acquisition Time)

—

11

—

T

AD

Set GO/DONE bit to conversion
complete

AD132* T

ACQ

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 T

CY

 cycle.