Datasheet
2011-2012 Microchip Technology Inc. Preliminary DS61168E-page 273
PIC32MX1XX/2XX
TABLE 29-32: ADC MODULE SPECIFICATIONS
AC CHARACTERISTICS
Standard Operating Conditions (see Note 5): 2.5V to 3.6V
(unless otherwise stated)
Operating temperature -40°C T
A +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
V
DD – 0.3
or 2.5
— Lesser of
VDD + 0.3 or
3.6
V—
AD02 AV
SS Module VSS Supply VSS —AVDD V (Note 1)
Reference Inputs
AD05
AD05a
V
REFH Reference Voltage High AVSS + 2.0
2.5
—
—
AVDD
3.6
V
V
(Note 1)
VREFH = AVDD (Note 3)
AD06 V
REFL Reference Voltage Low AVSS —VREFH – 2.0 V (Note 1)
AD07 V
REF Absolute Reference
Voltage (VREFH – VREFL)
2.0 — AVDD V (Note 3)
AD08
AD08a
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 V
INL Absolute VINL Input
Voltage
AVSS – 0.3 — AVDD/2 V —
AD14 VIN Absolute Input Voltage AVSS – 0.3 — AVDD + 0.3 V —
AD15 — Leakage Current — ±0.001 ±0.610 µA V
INL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.3V
Source Impedance = 10 k
AD17 RIN Recommended
Impedance of Analog
Voltage Source
—— 5k (Note 1)
ADC Accuracy – Measurements with External VREF+/VREF-
AD20c Nr Resolution 10 data bits bits —
AD21c INL Integral Non-linearity > -1 — < 1 LSb V
INL = AVSS = VREFL = 0V,
AV
DD = VREFH = 3.3V
AD22c DNL Differential Non-linearity > -1 — < 1 LSb V
INL = AVSS = VREFL = 0V,
AV
DD = VREFH = 3.3V
(Note 2)
AD23c G
ERR Gain Error > -1 — < 1 LSb VINL = AVSS = VREFL = 0V,
AV
DD = VREFH = 3.3V
AD24c E
OFF Offset Error > -1 — < 1 Lsb VINL = AVSS = 0V,
AVDD = 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 a 1 kHz sine wave.
5: The ADC module is functional at V
BORMIN < VDD < 2.5V, but with degraded performance. Unless otherwise
stated, module functionality is tested, but not characterized.