PIC16C770 Microchip Technology Inc., PIC16C770 Datasheet - Page 172

• Manufacturer Part Number: PIC16C770
• Description: 18/20-pin, 8-bit Cmos Microcontrollers With 10/12-bit A/d
• Manufacturer: Microchip Technology Inc.

PIC16C717/770/771
TABLE 15-14: PIC16C717 AND PIC16LC717 A/D CONVERTER CHARACTERISTICS:
A01
A03
A04
A06
A07
A10
A20*
A21*
A22*
A25*
A30*
A50*
Note 1: When A/D is off, it will not consume any current other than leakage current. The power-down current spec includes any such
DS41120B-page 170
Param.
*
†
No.
2: V
3: The A/D conversion result never decreases with an increase in the input voltage and has no missing codes.
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.
leakage from the A/D module.
REF
N
E
E
E
E
—
V
V
V
V
Z
I
REF
AIN
AIN
Sym
IL
DL
OFF
GN
REF
REF
REF
R
current is from External V
+
-
Characteristic
Resolution
Integral error
Differential error
Offset error
Gain Error
Monotonicity
Reference voltage
(V
Reference V High
(A
Reference V Low
(A
Analog input voltage
Recommended
impedance of analog
voltage source
V
(Note 2)
REF
REF
VDD
VSS
+ - V
input current
or V
or V
REF
REF
REF
-)
-)
+)
REF
+, or V
AV
V
4.096
V
Min
REFL
REF
—
—
—
—
—
—
—
—
SS
REF
-
-, or AV
Note 3
Typ†
SS
—
—
—
—
—
—
—
—
—
—
—
, or AV
DD
V
DD
10 bits
V
V
pin, whichever is selected as reference input.
AV
Max
±2
REF
REFH
2.5
±1
±1
±1
—
10
+0.3V
DD
+
Units
LSb
LSb
LSb
LSb
k
bit
—
V
V
V
V
A
Min. resolution for A/D is 4.1 mV,
V
V
V
V
V
V
No missing codes to 10 bits
V
V
V
V
V
V
V
V
V
AV
Absolute minimum electrical spec to
ensure 10-bit accuracy.
Min. resolution for A/D is 4.1 mV
Min. resolution for A/D is 4.1 mV
During V
Based on differential of V
To charge C
During A/D conversion cycle.
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
REF
SS
+ = AV
- = AV
-
+ = AV
- = AV
-
+ = AV
- = AV
-
+ = AV
- = AV
-
+ = AV
- = AV
-
V
V
V
V
V
V
AIN
2002 Microchip Technology Inc.
AIN
AIN
AIN
AIN
AIN
AIN
SS
SS
SS
SS
SS
DD
DD
DD
DD
DD
acquisition.
HOLD
= 0V,
= 0V,
= 0V,
= 0V,
= 0V,
Conditions
= 4.096V,
= 4.096V,
= 4.096V,
= 4.096V,
= 4.096V,
V
V
V
V
V
V
REF
REF
REF
REF
REF
REF
see Section 11.0 .
+
+
+
+
+
+
HOLD
to V
AIN
.