Datasheet

© 2011 Microchip Technology Inc. DS61143H-page 179
PIC32MX3XX/4XX
TABLE 29-34: ADC MODULE SPECIFICATIONS
AC CHARACTERISTICS
Standard Operating Conditions: 2.3V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤ TA ≤ +105°C for V-Temp
Param.
No.
Symbol Characteristics Min. Typical Max. Units Conditions
Device Supply
AD01 AV
DD Module VDD Supply Greater of
VDD – 0.3
or 2.5
— Lesser of
VDD + 0.3
or 3.6
V
—
AD02 AVSS Module VSS Supply VSS —VSS + 0.3 V —
Reference Inputs
AD05 V
REFH Reference Voltage High AVSS + 2.0 — AVDD V (Note 1)
AD05a 2.5 — 3.6 V V
REFH = AVDD (Note 3)
AD06 V
REFL Reference Voltage Low AVSS —VREFH –
2.0
V (Note 1)
AD07 VREF Absolute Reference
Voltage
(V
REFH – VREFL)
2.0 — AV
DD V (Note 3)
AD08 IREF Current Drain — 250
—
400
3
μA
μA
ADC operating
ADC off
Analog Input
AD12 V
INH-VINL Full-Scale Input Span VREFL —VREFH V—
AD13 VINL Absolute VINL Input
Voltage
AVSS – 0.3 — AVDD/2 V —
AD14 V
IN Absolute Input Voltage AVSS – 0.3 — AVDD +
0.3
V—
AD15 — Leakage Current — ±0.001 ±0.610 μAV
INL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.3V
Source Impedance = 10KΩ
AD17 RIN Recommended
Impedance of Analog
Voltage Source
——5KΩ (Note 1)
ADC Accuracy – Measurements with External V
REF+/VREF-
AD20c Nr Resolution 10 data bits bits —
AD21c INL Integral Nonlinearity — — <±1 LSb V
INL = AVSS = VREFL = 0V,
AV
DD = VREFH = 3.3V
AD22c DNL Differential Nonlinearity — — <±1 LSb VINL = AVSS = VREFL = 0V,
AV
DD = VREFH = 3.3V
(Note 2)
AD23c GERR Gain Error — — <±1 LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.3V
AD24n E
OFF Offset Error — — <±1 LSb VINL = AVSS = 0V,
AV
DD = 3.3V
AD25c — Monotonicity — — — — Guaranteed
Note 1: These parameters are not characterized or tested in manufacturing.
2: With no missing codes.
3: These parameters are characterized, but not tested in manufacturing.
4: Characterized with 1 kHz sinewave.