Microchip Technology ARD00330 データシート

 2010 Microchip Technology Inc.

DS39979A-page 421

A01

N

R

Resolution

—

—

12

bit

V

REF

 

 3.0V 

A03

E

IL

Integral Linearity Error

—

<±1

±2.0

LSB

V

REF

 

 3.0V 

A04

E

DL

Differential Linearity 
Error

—

<±1

±1.5

LSB

V

REF

 

 3.0V 

A06

E

OFF

Offset Error

—

<±1

±5

LSB

V

REF

 

 3.0V 

A07

E

GN

Gain Error

—

<±1

±3

LSB

V

REF

 

 3.0V 

A10

—

Monotonicity

Guaranteed

—

V

SS

 

 V

AIN

 

 V

REF

A20

V

REF

Reference Voltage 
Range (V

REFH

 – V

REFL

)

3

—

V

DD

 – V

SS

V

For 12-bit resolution

A21

V

REFH

Reference Voltage High V

SS

 + 3.0V

—

V

DD

 + 0.3V

V

For 12-bit resolution

A22

V

REFL

Reference Voltage Low

V

SS

 – 0.3V

—

V

DD

 – 3.0V

V

For 12-bit resolution

A25

V

AIN

Analog Input Voltage

V

REFL

—

V

REFH

V

A30

Z

AIN

Recommended 
Impedance of Analog 
Voltage Source

—

—

2.5

k



A50

I

REF

V

REF

 Input Current

—
—

—
—

5

150

A
A

During V

AIN

 acquisition.

During A/D conversion cycle.

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

2: V

REFH

 current is from the RA3/AN3/V

REF

+ pin or V

DD

, whichever is selected as the V

REFH

 source. V

REFL

 

current is from the RA2/AN2/V

REF

- pin or V

SS

, whichever is selected as the V

REFL

 source.