參數資料
型號: PIC16LC715
廠商: Microchip Technology Inc.
英文描述: 8-Bit CMOS Microcontrollers with A/D Converter
中文描述: 8位CMOS微控制器與A / D轉換器
文件頁數: 100/176頁
文件大?。?/td> 803K
代理商: PIC16LC715
PIC16C71X
DS30272A-page 100
1997 Microchip Technology Inc.
Applicable Devices
710 71 711 715
FIGURE 11-7: A/D CONVERSION TIMING
TABLE 11-7:
A/D CONVERSION REQUIREMENTS
Param
No.
Sym
Characteristic
Min
Typ
Max
Units
Conditions
130
T
AD
A/D clock period
PIC16
C
710/711
PIC16
LC
710/711
PIC16
C
710/711
PIC16
LC
710/711
1.6
2.0
2.0*
3.0*
4.0
6.0
9.5
6.0
9.0
μ
s
μ
s
μ
s
μ
s
T
AD
T
OSC
based, V
REF
3.0V
T
OSC
based, V
REF
full range
A/D RC mode
A/D RC mode
131
T
CNV
Conversion time
(not including S/H time). (Note 1)
T
ACQ
Acquisition time
132
Note 2
5*
20
μ
s
μ
s
The minimum time is the amplifier
settling time. This may be used if the
"new" input voltage has not changed
by more than 1 LSb (i.e., 19.5 mV @
5.12V) from the last sampled voltage
(as stated on C
HOLD
).
If the A/D clock source is selected as
RC, a time of T
CY
is added before the
A/D clock starts. This allows the
SLEEP
instruction to be executed.
134
T
GO
Q4 to AD clock start
T
OSC
/2§
135
T
SWC
Switching from convert
sample time
These parameters are characterized but not tested.
Data in “Typ” column is at 5V, 25
°
C unless otherwise stated. These parameters are for design guidance only and are not
tested.
This specification ensured by design.
ADRES register may be read on the following T
CY
cycle.
See Section 7.1 for min conditions.
1.5§
T
AD
*
§
Note 1:
2:
131
130
132
BSF ADCON0, GO
Q4
A/D CLK
A/D DATA
ADRES
ADIF
GO
SAMPLE
OLD_DATA
SAMPLING STOPPED
DONE
NEW_DATA
(T
OSC
/2)
(1)
7
6
5
4
3
2
1
0
Note 1:
If the A/D clock source is selected as RC, a time of T
CY
is added before the A/D clock starts. This allows the
SLEEP
instruction to be executed.
1 Tcy
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