PIC16LF707-E/P Microchip Technology, PIC16LF707-E/P Datasheet - Page 86
PIC16LF707-E/P
Manufacturer Part Number
PIC16LF707-E/P
Description
14KB Flash Program, MTouch, 32ch CSM, 1.8V-5.5V, 16MHz Internal Oscillator, 8b A
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Specifications of PIC16LF707-E/P
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
36
Program Memory Size
14KB (8K x 14)
Program Memory Type
FLASH
Ram Size
363 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 14x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
40-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16LF707-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
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PIC16F707/PIC16LF707
9.3
For the ADC to meet its specified accuracy, the charge
holding capacitor (C
charge to the input channel voltage level. The analog
input model is shown in Figure 9-3. The source
impedance (R
impedance directly affect the time required to charge
the capacitor C
impedance varies over the device voltage (V
to
impedance for analog sources is 10 k. As the
EQUATION 9-1:
DS41418A-page 86
The value for T
Solving for T
Therefore:
Note 1: The reference voltage (V
Assumptions:
Figure 9-3.
V
V
V
Note: Where n = number of bits of the ADC.
2: The charge holding capacitor (C
3: The maximum recommended impedance for analog sources is 10 k. This is required to meet the pin
A/D Acquisition Requirements
AP P LI ED
AP P LI ED
AP P LI ED
leakage specification.
T
S
ACQ
T
) and the internal sampling switch (R
C
ACQ
T
:
HOLD
C
C
The
=
Temperature
can be approximated with the following equations:
=
=
=
=
1
1 e
1 e
HOLD
=
=
=
. The sampling switch (R
ACQUISITION TIME EXAMPLE
2µs
4.42µs
–
–
–
1.12
–
–
Amplifier Settling Time
T
2µs
C
10pF 1k
--------------------------
maximum
AMP
) must be allowed to fully
2
–
--------- -
–
-------- -
HOLD
RC
RC
+
µs
T
Tc
n
+
C
1.12µs
+
+
1
T
1
C
1
=
R
=
T
+
IC
C
–
=
V
V
+
+
+
REF
+
A PP LIE D
CHOLD
recommended
7k
50°C and external impedance of 10k
Temperature - 25°C
T
R
) has no effect on the equation, since it cancels itself out.
COFF
50°C- 25°C
=
SS
+
+
HOLD
DD
V
10k
CHOLD
R
), refer
S
1
+
ln(1/511)
) is not discharged after each conversion.
Preliminary
SS
SS
–
Hold Capacitor Charging Time
)
)
0.05µs/°C
--------------------------
ln(0.001957)
2
n
+
0.05µs/°C
1
1
1
source impedance is decreased, the acquisition time
may be decreased. After the analog input channel is
selected (or changed), an A/D acquisition must be
done before the conversion can be started. To calculate
the minimum acquisition time, Equation 9-1 may be
used. This equation assumes that 1/2 LSb error is used
(256 steps for the ADC). The 1/2 LSb error is the
maximum error allowed for the ADC to meet its
specified resolution.
–
;[1] V
;[2] V
;combining [1] and [2]
CHOLD
CHOLD
5.0V V
+
charged to within 1/2 lsb
charge response to V
DD
Temperature Coefficient
2010 Microchip Technology Inc.
APPLIED
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