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PIC24HJ64 Datasheet

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PIC24HJ32GP302/304, <strong>PIC24HJ64</strong>GPX02/X04, AND PIC24HJ128GPX02/X04<br />

FIGURE 19-1:<br />

ADC MODULE BLOCK DIAGRAM<br />

VREF+ (1)<br />

VREF- (1)<br />

AVDD<br />

AVSS<br />

AN0<br />

AN0<br />

AN3<br />

AN6<br />

AN9<br />

VREF-<br />

+<br />

S/H<br />

-<br />

CH1 (2)<br />

ADC1<br />

AN1<br />

AN2<br />

AN1<br />

AN4<br />

AN7<br />

AN10<br />

VREF-<br />

AN2<br />

AN5<br />

AN8<br />

AN11<br />

VREF-<br />

+ CH2 (2)<br />

S/H<br />

-<br />

+<br />

CH3 (2)<br />

S/H<br />

-<br />

Sample<br />

CH1,CH2,<br />

CH3,CH0<br />

Conversion<br />

Result<br />

Conversion Logic<br />

16-bit<br />

ADC Output<br />

Buffer<br />

Sample/Sequence<br />

Control<br />

Data Format<br />

Bus Interface<br />

AN3<br />

00000<br />

00001<br />

00010<br />

00011<br />

Input<br />

Switches<br />

Input MUX<br />

Control<br />

AN4<br />

00100<br />

AN5<br />

00101<br />

AN6<br />

00110<br />

AN7<br />

00111<br />

AN8<br />

01000<br />

AN9<br />

01001<br />

AN10<br />

01010<br />

AN11<br />

01011<br />

AN12<br />

01100<br />

VREF-<br />

AN1<br />

+<br />

S/H<br />

-<br />

CH0<br />

Note 1: VREF+, VREF- inputs can be multiplexed with other analog inputs.<br />

2: Channels 1, 2 and 3 are not applicable for the 12-bit mode of operation.<br />

DS70293B-page 214 Preliminary © 2008 Microchip Technology Inc.

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