Datasheet

 2011 Microchip Technology Inc. DS39995B-page 285
PIC24FV32KA304 FAMILY
TABLE 29-27: ADC MODULE SPECIFICATIONS
AC CHARACTERISTICS
Standard Operating Conditions: 1.8V to 3.6V PIC24F32KA3XX
2.0V to 5.5V PIC24FV32KA3XX
Operating temperature -40°C  T
A  +85°C for Industrial
Param
No.
Symbol Characteristic Min. Typ Max. Units Conditions
Device Supply
AD01 AV
DD Module VDD Supply Greater of
V
DD – 0.3
or 1.8
— 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 V
REF 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/2 V
AD17 R
IN Recommended
Impedance of Analog
Voltage Source
— — 2.5K  12-bit
ADC Accuracy
AD20b N
R Resolution — 12 — bits
AD21b INL Integral Nonlinearity — ±1 ±9 LSb VINL = AVSS = VREFL = 0V,
AV
DD = VREFH = 5V
AD22b DNL Differential Nonlinearity — ±1 ±5 LSb V
INL = AVSS = VREFL = 0V,
AV
DD = VREFH = 5V
AD23b GERR Gain Error — ±1 ±9 LSb VINL = AVSS = VREFL = 0V,
AV
DD = VREFH = 5V
AD24b EOFF Offset Error — ±1 ±5 LSb VINL = AVSS = VREFL = 0V,
AV
DD = VREFH = 5V
AD25b Monotonicity
(1)
— — — — Guaranteed
Note 1: The ADC conversion result never decreases with an increase in the input voltage.
2: Measurements are taken with external V
REF+ and VREF- used as the ADC voltage reference.