PIC16F7X7
TABLE 18-15: A/D CONVERTER CHARACTERISTICS: PIC16F7X7 (INDUSTRIAL, EXTENDED)
PIC16LF7X7 (INDUSTRIAL)
Param
Sym
No.
A01
A03
A04
A06
A07
A10
A20
A21
A22
A25
A30
A40
N
R
E
IL
E
DL
E
OFF
E
GN
—
V
REF
Characteristic
Resolution
Integral Linearity Error
Differential Linearity Error
Offset Error
Gain Error
Monotonicity
Reference Voltage
(V
REF
+ – V
REF
-)
Min
—
—
—
—
—
—
2.0
AV
DD
– 2.5V
AV
SS
– 0.3V
V
SS
– 0.3V
—
—
—
—
Typ†
—
—
—
—
—
guaranteed
(3)
—
—
—
—
—
220
90
—
Max
10 bits
<±1
<±1
<±2
<±1
—
V
DD
+ 0.3
AV
DD
+ 0.3V
V
REF
+ – 2.0V
V
REF
+ 0.3V
2.5
—
—
5
Units
bit
LSb
LSb
LSb
LSb
—
V
V
V
V
kΩ
µA
µA
µA
(Note 4)
Average current
consumption when A/D is on
(Note 1)
During V
AIN
acquisition.
Based on differential of V
HOLD
to V
AIN
to charge C
HOLD
,
see
During A/D conversion cycle
Conditions
V
REF
= V
DD
= 5.12V,
V
SS
≤
V
AIN
≤
V
REF
V
REF
= V
DD
= 5.12V,
V
SS
≤
V
AIN
≤
V
REF
V
REF
= V
DD
= 5.12V,
V
SS
≤
V
AIN
≤
V
REF
V
REF
= V
DD
= 5.12V,
V
SS
≤
V
AIN
≤
V
REF
V
REF
= V
DD
= 5.12V,
V
SS
≤
V
AIN
≤
V
REF
V
SS
≤
V
AIN
≤
V
REF
V
REF
+ Reference Voltage High
V
REF
- Reference Voltage Low
V
AIN
Z
AIN
I
AD
Analog Input Voltage
Recommended Impedance of
Analog Voltage Source
A/D Conversion
Current (V
DD
)
PIC16F7X7
PIC16LF7X7
A50
I
REF
V
REF
Input Current
(Note 2)
—
*
†
Note 1:
2:
3:
4:
—
150
µA
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
REF
current is from RA3 pin or V
DD
pin, whichever is selected as reference input.
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 kΩ. This requires higher acquisition time.
2004 Microchip Technology Inc.
DS30498C-page 235
MICROCHIP [ MICROCHIP TECHNOLOGY ]
