PIC16 datasheet(149/418 Pages) MICROCHIP

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 2011-2013 Microchip Technology Inc.

DS40001609C-page 149

PIC16(L)F1508/9

16.0 5-BIT DIGITAL-TO-ANALOG

CONVERTER (DAC) MODULE

The Digital-to-Analog Converter supplies a variable

voltage reference, ratiometric with the input source,

with 32 selectable output levels.

The positive input source (VSOURCE+) of the DAC can

be connected to:

•External VREF+ pin

•VDD supply voltage

The negative input source (VSOURCE-) of the DAC can

be connected to:

•Vss

The output of the DAC (DACx_output) can be selected

as a reference voltage to the following:

• Comparator positive input

• ADC input channel

•DACxOUT1 pin

•DACxOUT2 pin

The Digital-to-Analog Converter (DAC) can be enabled

by setting the DACEN bit of the DACxCON0 register.

FIGURE 16-1:

DIGITAL-TO-ANALOG CONVERTER BLOCK DIAGRAM

VREF+

VDD

DACPSS

VSOURCE+

VSOURCE-

VSS

Steps

To Peripherals

DACxOUT1

(1)

DACOE1

DACx_output

DACEN

DACR<4:0>

DACxOUT2

(1)

DACOE2

Note 1: The unbuffered DACx_output is provided on the DACxOUT pin(s).

Rev. 10-000026A

7/30/2013

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