PIC16F747 Microchip Technology Inc., PIC16F747 Datasheet - Page 237

• Manufacturer Part Number: PIC16F747
• Description: 28/40/44-pin, 8-bit Cmos Flash Microcontrollers With 10-bit A/d And Nanowatt Technology
• Manufacturer: Microchip Technology Inc.

TABLE 18-15: A/D CONVERTER CHARACTERISTICS: PIC16F7X7 (INDUSTRIAL, EXTENDED)
 2004 Microchip Technology Inc.
Param
A01
A03
A04
A06
A07
A10
A20
A21
A22
A25
A30
A40
A50
Note 1:
No.
2:
3:
4:
N
E
E
E
E
V
V
V
V
Z
I
I
AD
REF
*
†
Sym
REF
REF
REF
AIN
AIN
R
IL
DL
OFF
GN
—
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.
When A/D is off, it will not consume any current other than minor leakage current. The power-down current specification
includes any such leakage from the A/D module.
V
The A/D conversion result never decreases with an increase in the input voltage and has no missing codes.
Maximum allowed impedance for analog voltage source is 10 k
+ Reference Voltage High
- Reference Voltage Low
REF
Resolution
Integral Linearity Error
Differential Linearity Error
Offset Error
Gain Error
Monotonicity
Reference Voltage
(V
Analog Input Voltage
Recommended Impedance of
Analog Voltage Source
A/D Conversion
Current (V
V
REF
REF
current is from RA3 pin or V
Input Current (Note 2)
+ – V
Characteristic
DD
REF
)
-)
PIC16F7X7
PIC16LF7X7
DD
pin, whichever is selected as reference input.
AV
AV
V
SS
DD
SS
Min
2.0
—
—
—
—
—
—
—
—
—
—
—
– 0.3V
– 2.5V
– 0.3V
guaranteed
Typ†
220
90
—
—
—
—
—
—
—
—
—
—
—
—
PIC16LF7X7 (INDUSTRIAL)
(3)
This requires higher acquisition time.
V
AV
V
REF
V
REF
DD
DD
10 bits
Max
<±1
<±1
<±2
<±1
150
+ – 2.0V
2.5
—
—
—
5
+ 0.3V
+ 0.3
+ 0.3V
Units
LSb
LSb
LSb
LSb
k
bit
—
V
V
V
V
A
A
A
A
PIC16F7X7
V
V
V
V
V
V
V
V
V
V
V
(Note 4)
Average current
consumption when A/D is on
(Note 1)
During V
Based on differential of V
to V
see Section 12.1 “A/D
Acquisition Requirements”.
During A/D conversion cycle
REF
SS
REF
SS
REF
SS
REF
SS
REF
SS
SS
AIN
= V
= V
= V
= V
= V
V
V
V
V
V
V
to charge C
AIN
AIN
AIN
AIN
AIN
AIN
AIN
DS30498C-page 235
Conditions
DD
DD
DD
DD
DD
acquisition.
= 5.12V,
= 5.12V,
= 5.12V,
= 5.12V,
= 5.12V,
V
V
V
V
V
V
REF
REF
REF
REF
REF
REF
HOLD
,
HOLD