Datasheet

 2011-2013 Microchip Technology Inc. DS70657G-page 457
dsPIC33EPXXXGP50X, dsPIC33EPXXXMC20X/50X AND PIC24EPXXXGP/MC20X
TABLE 30-57: ADC MODULE SPECIFICATIONS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
(1)
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 3.0
— 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 + 2.5 — AVDD VVREFH = VREF+
V
REFL = VREF- (Note 1)
AD05a 3.0 — 3.6 V VREFH = AVDD
VREFL = AVSS = 0
AD06 V
REFL Reference Voltage Low AVSS —AVDD – 2.5 V (Note 1)
AD06a 0 — 0 V VREFH = AVDD
VREFL = AVSS = 0
AD07 V
REF Absolute Reference
Voltage
2.5 — 3.6 V VREF = VREFH - VREFL
AD08 IREF Current Drain —
—
—
—
10
600
A
A
ADC off
ADC on
AD09 I
AD Operating Current
(2)
— 5 — mA ADC operating in 10-bit mode
(Note 1)
— 2 — mA ADC operating in 12-bit mode
(Note 1)
Analog Input
AD12 V
INH Input Voltage Range
V
INH
VINL —VREFH V This voltage reflects Sample-and-
Hold Channels 0, 1, 2 and 3
(CH0-CH3), positive input
AD13 V
INL Input Voltage Range
V
INL
VREFL —AVSS + 1V V This voltage reflects Sample-and-
Hold Channels 0, 1, 2 and 3
(CH0-CH3), negative input
AD17 R
IN Recommended
Impedance of Analog
Voltage Source
——200 Impedance to achieve maximum
performance of ADC
Note 1: Device is functional at V
BORMIN < VDD < VDDMIN, but will have degraded performance. Device functionality
is tested, but not characterized. Analog modules (ADC, op amp/comparator and comparator voltage
reference) may have degraded performance. Refer to Parameter BO10 in Table 30-13 for the minimum and
maximum BOR values.
2: Parameter is characterized but not tested in manufacturing.