Datasheet

PIC24FJ64GA004 FAMILY
DS39881E-page 248  2010-2013 Microchip Technology Inc.
TABLE 27-20: A/D MODULE SPECIFICATIONS
AC CHARACTERISTICS
Standard Operating Conditions: 2.0V to 3.6V (unless otherwise stated)
Operating temperature -40°C  TA +85°C for Industrial
-40°C  T
A  +125°C for Extended
Param
No.
Symbol Characteristic Min. Typ Max. Units Conditions
Device Supply
AD01 AV
DD Module VDD Supply Greater of:
V
DD – 0.3
or 2.0
— Lesser of:
VDD + 0.3
or 3.6
V
AD02 AV
SS Module VSS Supply VSS – 0.3 — VSS + 0.3 V
Reference Inputs
AD05 V
REFH Reference Voltage High AVSS + 1.7 — AVDD V
AD06 VREFL Reference Voltage Low AVSS —AVDD – 1.7 V
AD07 V
REF Absolute Reference
Voltage
AVSS – 0.3 — AVDD + 0.3 V
AD08 I
VREF Reference Voltage Input
Current
— — 1.25 mA Measured during conversion,
3.3V, +25°C (Note 1)
AD09 Z
REF Reference Input Impedance — 10k —  Measured during sampling,
3.3V, +25°C
Analog Input
AD10 V
INH-VINL Full-Scale Input Span VREFL —VREFH V (Note 1)
AD11 VIN Absolute Input Voltage AVSS – 0.3 — AVDD + 0.3 V
AD12 V
INL Absolute VINL Input Voltage AVSS – 0.3 AVDD/2 V
AD13 — Leakage Current — ±1 ±610 nA VINL = 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 — 10 — bits
AD21b INL Integral Nonlinearity — ±1 <±2 LSb V
INL = AVSS = VREFL = 0V,
AV
DD = VREFH = 3V
AD22b DNL Differential Nonlinearity — ±1 <±1.25 LSb VINL = AVSS = VREFL = 0V,
AV
DD = VREFH = 3V
AD23b G
ERR 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
(2)
— — — — Guaranteed
Note 1: Measurements are taken with external V
REF+ and VREF- used as the A/D voltage reference.
2: The A/D conversion result never decreases with an increase in the input voltage and has no missing codes.