PIC16F913 datasheet(152/272 Pages) MICROCHIP

152 / 272 page

PIC16F917/916/914/913

DS41250E-page 150

Preliminary

FIGURE 12-4:

ANALOG INPUT MODEL

12.3

A/D Operation During Sleep

The A/D converter module can operate during Sleep.

This requires the A/D clock source to be set to the

internal oscillator. When the RC clock source is

selected, the A/D waits one instruction before starting

the conversion. This allows the SLEEP instruction to be

executed, thus eliminating much of the switching noise

from the conversion. When the conversion is complete,

the GO/DONE bit is cleared and the result is loaded

into the ADRESH:ADRESL registers. If the A/D

interrupt is enabled, the device awakens from Sleep. If

the GIE bit (INTCON<7>) is set, the program counter is

set to the interrupt vector (0004h). If GIE is clear, the

next instruction is executed. If the A/D interrupt is not

enabled, the A/D module is turned off, although the

ADON bit remains set.

When the A/D clock source is something other than

RC, a SLEEP instruction causes the present conversion

to be aborted, and the A/D module is turned off. The

ADON bit remains set.

FIGURE 12-5:

A/D TRANSFER FUNCTION

CPIN

ANx

5 pF

VDD

VT = 0.6V

I LEAKAGE

RIC

≤ 1k

Sampling

Switch

SS RSS

CHOLD

= DAC capacitance

VSS

Sampling Switch

567 8 9 10 11

Ω)

VDD

= 10 pF

± 500 nA

Legend: CPIN

I LEAKAGE

RIC

CHOLD

= Input Capacitance

= Threshold Voltage

= Leakage current at the pin due to

= Interconnect Resistance

= Sampling Switch

= Sample/Hold Capacitance (from DAC)

various junctions

RSS

3FFh

3FEh

3FDh

3FCh

004h

003h

002h

001h

000h

Full-Scale

3FBh

1/2 LSB Ideal

Zero-Scale

Transition

1/2 LSB Ideal

Transition

Center of

Full-Scale Code

1 LSB Ideal

Full-Scale Range

Analog Input

PIC16F913 Datasheet(PDF) 152 Page - Microchip Technology

PIC16F913 Datasheet(HTML) 152 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL