Datasheet

PIC24FJ128GA310 FAMILY
DS39996F-page 374  2010-2011 Microchip Technology Inc.
TABLE 32-25: A/D MODULE SPECIFICATIONS
AC CHARACTERISTICS
Standard Operating Conditions: 2V to 3.6V
(unless otherwise stated)
Operating temperature -40°C  T
A  +85°C
Param
No.
Symbol Characteristic Min. Typ Max. Units Conditions
Device Supply
AD01 AV
DD Module VDD Supply Greater of
V
DD – 0.3
or 2.2
—Lesser of
V
DD + 0.3
or 3.6
V
AD02 AV
SS Module VSS Supply VSS – 0.3 — VSS + 0.3 V
Reference Inputs
AD05 VREFH Reference Voltage High AVSS + 1.7 — AVDD V
AD06 V
REFL Reference Voltage Low AVSS —AVDD – 1.7 V
AD07 VREF Absolute Reference
Voltage
AVSS – 0.3 — AVDD + 0.3 V
Analog Input
AD10 V
INH-VINL Full-Scale Input Span VREFL —VREFH V (Note 2)
AD11 VIN Absolute Input Voltage AVSS – 0.3 — AVDD + 0.3 V
AD12 V
INL Absolute VINL Input
Voltage
AVSS – 0.3 — AVDD/3 V
AD13 Leakage Current — ±1.0 ±610 nA V
INL = AVSS = VREFL = 0V,
AV
DD = VREFH = 3V,
Source Impedance = 2.5 k
AD17 R
IN Recommended Impedance
of Analog Voltage Source
— — 2.5K  10-bit
A/D Accuracy
AD20B Nr Resolution — 12 — bits
AD21B INL Integral Nonlinearity — ±1 <±2 LSb VINL = AVSS = VREFL = 0V,
AV
DD = VREFH = 3V
AD22B DNL Differential Nonlinearity — — <±1 LSb VINL = AVSS = VREFL = 0V,
AV
DD = VREFH = 3V
AD23B GERR Gain Error — ±1 ±3 LSb VINL = AVSS = VREFL = 0V,
AV
DD = VREFH = 3V
AD24B E
OFF Offset Error — ±1 ±2 LSb VINL = AVSS = VREFL = 0V,
AV
DD = VREFH = 3V
AD25B Monotonicity
(1)
— — — — Guaranteed
Note 1: The A/D conversion result never decreases with an increase in the input voltage and has no missing
codes.
2: Measurements are taken with the external V
REF+ and VREF- used as the A/D voltage reference.