MCP1726T-ADJZEMF Microchip Technology, MCP1726T-ADJZEMF Datasheet - Page 66

• Manufacturer Part Number: MCP1726T-ADJZEMF
• Description: Regulator, Extended Industrial, HVSON, 8-Pin|
• Manufacturer: Microchip Technology

PIC12F683
10.1.4
The A/D conversion cycle requires 11 T
of the conversion clock is software selectable via the
ADCS bits (ANSEL<6:4>). There are seven possible
clock options:
• F
• F
• F
• F
• F
• F
• F
For correct conversion, the A/D conversion clock
(1/T
1.6 s. Table 10-1 shows a few T
selected frequencies.
TABLE 10-1:
DS41211A-page 64
Legend: Shaded cells are outside of recommended range.
Note 1:
Operation
OSC
OSC
OSC
OSC
OSC
OSC
RC
AD
16 T
32 T
64 T
A/D RC
2 T
4 T
8 T
A/D Clock Source (T
) must be selected to ensure a minimum T
(dedicated internal oscillator)
2:
3:
4:
/2
/4
/8
/16
/32
/64
OSC
OSC
OSC
OSC
OSC
OSC
The A/D RC source has a typical T
These values violate the minimum required T
For faster conversion times, the selection of another clock source is recommended.
When the device frequency is greater than 1 MHz, the A/D RC clock source is only recommended if the
conversion will be performed during Sleep.
CONVERSION CLOCK
ADCS2:ADCS0
T
AD
vs. DEVICE OPERATING FREQUENCIES
000
100
001
101
010
110
x11
AD
)
AD
calculations for
AD
2 - 6 s
. The source
100 ns
200 ns
400 ns
800 ns
20 MHz
1.6 s
3.2 s
Advance Information
AD
(1,4)
(2)
(2)
(2)
(2)
AD
time of 4 s for V
of
AD
time.
2 - 6 s
12.8 s
400 ns
800 ns
5 MHz
1.6 s
3.2 s
6.4 s
DD
Device Frequency
(1,4)
(2)
(2)
(3)
> 3.0V.
2 - 6 s
16.0 s
500 ns
1.0 s
8.0 s
4 MHz
2.0 s
4.0 s
 2003 Microchip Technology Inc.
(2)
(3)
(1,4)
(2)
(3)
2 - 6 s
1.25 MHz
12.8 s
25.6 s
51.2 s
1.6 s
3.2 s
6.4 s
(1,4)
(3)
(3)
(3)