Microchip Technology MA330019 Data Sheet
© 2007-2012 Microchip Technology Inc.
DS70291G-page 401
dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04
TABLE 31-44: ADC MODULE SPECIFICATIONS (12-BIT MODE)
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature
(unless otherwise stated)
Operating temperature
-40°C
≤ T
A
≤ +85°C for Industrial
-40°C
≤ T
A
≤ +125°C for Extended
Param
No.
Symbol
Characteristic
Min
Typ
Max
Units
Conditions
ADC Accuracy (12-bit Mode) – Measurements with external V
REF
+/V
REF
-
AD20a
Nr
Resolution
(1)
12 data bits
bits
AD21a
INL
Integral Nonlinearity
-2
—
+2
LSb
V
INL
= AV
SS
= V
REFL
= 0V, AV
DD
= V
REFH
= 3.6V
AD22a
DNL
Differential Nonlinearity
>-1
—
<1
LSb
V
INL
= AV
SS
= V
REFL
= 0V, AV
DD
= V
REFH
= 3.6V
AD23a
G
ERR
Gain Error
—
3.4
10
LSb
V
INL
= AV
SS
= V
REFL
= 0V, AV
DD
= V
REFH
= 3.6V
AD24a
E
OFF
Offset Error
—
0.9
5
LSb
V
INL
= AV
SS
= V
REFL
= 0V, AV
DD
= V
REFH
= 3.6V
AD25a
—
Monotonicity
—
—
—
—
Guaranteed
ADC Accuracy (12-bit Mode) – Measurements with internal V
REF
+/V
REF
-
AD20a
Nr
Resolution
(1)
12 data bits
bits
AD21a
INL
Integral Nonlinearity
-2
—
+2
LSb
V
INL
= AV
SS
= 0V, AV
DD
= 3.6V
AD22a
DNL
Differential Nonlinearity
>-1
—
<1
LSb
V
INL
= AV
SS
= 0V, AV
DD
= 3.6V
AD23a
G
ERR
Gain Error
2
10.5
20
LSb
V
INL
= AV
SS
= 0V, AV
DD
= 3.6V
AD24a
E
OFF
Offset Error
2
3.8
10
LSb
V
INL
= AV
SS
= 0V, AV
DD
= 3.6V
AD25a
—
Monotonicity
—
—
—
—
Guaranteed
Dynamic Performance (12-bit Mode)
AD30a
THD
Total Harmonic Distortion
—
—
-75
dB
—
AD31a
SINAD
Signal to Noise and
Distortion
68.5
69.5
—
dB
—
AD32a
SFDR
Spurious Free Dynamic
Range
80
—
—
dB
—
AD33a
F
NYQ
Input Signal Bandwidth
—
—
250
kHz
—
AD34a
ENOB
Effective Number of Bits
11.09
11.3
—
bits
—
Note 1: Injection currents > |0| can affect the ADC results by approximately 4 to 6 counts (i.e., V
IH
source > (V
DD
+
0.3V) or V
IL
source < (V
SS
– 0.3V).