PIC18F2431-I/SP Microchip Technology Inc., PIC18F2431-I/SP Datasheet - Page 372

• Manufacturer Part Number: PIC18F2431-I/SP
• Description: Microcontroller; 16 KB Flash; 768 RAM; 256 EEPROM; 24 I/O; 28-Pin-SPDIP
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F2431-I/SP

• A/d Inputs: 5-Channel, 10-Bit
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 24
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 28-pin SPDIP
• Programmable Memory: 16K Bytes
• Ram Size: 768 Bytes
• Speed: 40 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC18F2331/2431/4331/4431
TABLE 25-21: A/D CONVERTER CHARACTERISTICS: PIC18F2331/2431/4331/4431 (INDUSTRIAL)
DS39616B-page 370
Device Supply
AC Timing Parameters
Reference Inputs
Analog Input Characteristics
DC Performance
Note 1:
Param
A10
A12
A13
A14
A16
A20
A21
A22
A23
A26
A30
A31
A41
A42
A43
A45
A46
A47
A11
No.
2:
3:
4:
Symbol
V
V
Z
Conversion time does not include acquisition time. See Section 20.0 “10-bit High-Speed Analog-to-Digital Converter
(A/D) Module” for a full discussion of acquisition time requirements.
In sequential modes, Tacq should be 12Tad or greater.
For V
The A/D conversion result never decreases with an incraese in the input voltage, and has no missing codes.
AV
AV
F
T
T
V
E
IADO
I
V
Z
T
E
T
T
RE
I
RE
REF
CHIN
N
E
E
THR
CNV
ACQ
—
AD
RE
OFF
AIN
AIN
RC
AD
TC
GA
I
I
DD
R
SS
L
L
FH
FL
F
DD
< 2.7V and temperature below 0°C, V
Analog V
Analog V
Module Current
(during conversion)
Module Current Off
Throughput rate
A/D Clock Period
A/D Internal RC Oscillator Period
Conversion Time
Acquisition Time
Conversion start from external
Reference voltage for 10-bit
resolution
(V
Reference voltage High
(AV
Reference voltage Low
(AV
Reference Current
Input Voltage
Recommended impedance of
analog voltage source
Analog channel input impedance
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset error
Gain error
Monotonicity
RE
DD
SS
F+ -
or V
or V
V
DD
SS
Characteristic
RE
REF
REF
Supply
Supply
F-
(4)
(3)
)
-)
+)
(2)
(1)
Preliminary
AV
AIN
V
V
1/4 T
DD
1000
AV
SS
1.5V
Min
385
2
SS
1.5
1.8
12
—
—
—
—
—
—
(2)
should be limited to range < V
-0.3
-0.3
SS
-0.3
CY
guaranteed
10 bits
10000
150µA
75µA
PIC18LF2331/2431/4331/4431 (INDUSTRIAL)
Typ
500
250
500
750
12
—
—
—
—
—
—
—
—
—
—
—
0.5
0.5
V
A
A
AV
REFH
V
V
VDD
VDD
20,000
20,000
< 1.5
< 1.5
20000
DD
AV
SS
1500
2250
Max
1Tcy
10.0
< 1
< 1
DD
200
1.0
2.5
75
12
+0.3
+0.3
-A
-A
DD
+0.3
-1.5V
VSS
VSS
DD
/2.
Units
ksps
ksps
LSb
LSb
LSb
LSb
T
T
µA
µA
µA
k
k
ns
ns
ns
ns
—
—
V
V
AD
AD
V
V
V
V
V
 2003 Microchip Technology Inc.
V
V
V
V
V
V
PIC18F parts
PIC18LF parts
A
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
VDD
REFH
REFH
REFH
REFH
REFH
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
= 5V
= 2.5V
= 5V, single channel
< 3V, single channel
= 5V
= 3V
< 3V
= 5V
= 2.5V
= 3.0 V
< 3.0V
3V
3V
3.0V
3.0V
3.0V
3.0V
3.0V
Conditions
3.0V
3.0V
3.0V
3.0V
3.0V