Datasheet

dsPIC33FJ32MC202/204 and dsPIC33FJ16MC304
DS70283K-page 276 © 2007-2012 Microchip Technology Inc.
TABLE 24-44: ADC MODULE SPECIFICATIONS (10-BIT MODE)
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ T
A ≤ +85°C for Industrial
-40°C ≤TA ≤+125°C for Extended
Param
No.
Symbol Characteristic Min. Typ Max. Units Conditions
ADC Accuracy (10-bit Mode) – Measurements with external VREF+/VREF-
(3)
AD20b Nr Resolution
(4)
10 data bits bits —
AD21b INL Integral Nonlinearity -1.5 — +1.5 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
AD22b DNL Differential Nonlinearity >-1 — <1 LSb V
INL = AVSS = VREFL = 0V,
AV
DD = VREFH = 3.6V
AD23b G
ERR Gain Error — 3 6 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.6V
AD24b E
OFF Offset Error — 2 5 LSb VINL = AVSS = VREFL = 0V,
AV
DD = VREFH = 3.6V
AD25b — Monotonicity — — — — Guaranteed
(1)
ADC Accuracy (10-bit Mode) – Measurements with internal VREF+/VREF-
(3)
AD20b Nr Resolution
(4)
10 data bits bits —
AD21b INL Integral Nonlinearity -1 — +1 LSb V
INL = AVSS = 0V, AVDD = 3.6V
AD22b DNL Differential Nonlinearity >-1 — <1 LSb VINL = AVSS = 0V, AVDD = 3.6V
AD23b G
ERR Gain Error — 7 15 LSb VINL = AVSS = 0V, AVDD = 3.6V
AD24b E
OFF Offset Error — 3 7 LSb VINL = AVSS = 0V, AVDD = 3.6V
AD25b — Monotonicity — — — — Guaranteed
(1)
Dynamic Performance (10-bit Mode)
(2)
AD30b THD Total Harmonic Distortion — — -64 dB —
AD31b SINAD Signal to Noise and
Distortion
57 58.5 — dB —
AD32b SFDR Spurious Free Dynamic
Range
72 — — dB —
AD33b F
NYQ Input Signal Bandwidth — — 550 kHz —
AD34b ENOB Effective Number of Bits 9.16 9.4 — bits —
Note 1: The A/D conversion result never decreases with an increase in the input voltage, and has no missing
codes.
2: These parameters are characterized by similarity, but are not tested in manufacturing.
3: These parameters are characterized, but are tested at 20 ksps only.
4: Injection currents > | 0 | can affect the ADC results by approximately 4-6 counts.