PIC32MX1XX_12 Datasheet, PDF (273/328 Pages) Microchip Technology – 32-bit Microcontrollers (up to 128 KB Flash and 32 KB SRAM) with Audio and Graphics Interfaces, USB, and Advanced Analog

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  TA  +85°C for Industrial
-40°C  TA  +105°C for V-temp
Param.
No.
Symbol
Characteristics
Min.
Typical
Max. Units
Conditions
Device Supply
AD01 AVDD
Module VDD Supply Greater of
—
Lesser of V
—
VDD – 0.3
VDD + 0.3 or
or 2.5
3.6
AD02 AVSS
Module VSS Supply
VSS
—
AVDD
V (Note 1)
Reference Inputs
AD05 VREFH Reference Voltage High AVSS + 2.0 —
AD05a
2.5
—
AVDD
3.6
V (Note 1)
V VREFH = AVDD (Note 3)
AD06 VREFL Reference Voltage Low AVSS
—
VREFH – 2.0 V (Note 1)
AD07 VREF
Absolute Reference
2.0
Voltage (VREFH – VREFL)
—
AVDD
V (Note 3)
AD08 IREF
AD08a
Current Drain
—
250
400
µA ADC operating
—
—
3
µA ADC off
Analog Input
AD12 VINH-VINL Full-Scale Input Span
AD13 VINL
Absolute VINL Input
Voltage
AD14 VIN
Absolute Input Voltage
AD15
— Leakage Current
AD17 RIN
Recommended
Impedance of Analog
Voltage Source
VREFL
AVSS – 0.3
AVSS – 0.3
—
—
—
—
—
±0.001
—
VREFH
AVDD/2
AVDD + 0.3
±0.610
5k
V
—
V
—
V
—
µA VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.3V
Source Impedance = 10 k
 (Note 1)
ADC Accuracy – Measurements with External VREF+/VREF-
AD20c Nr
Resolution
10 data bits
bits
—
AD21c INL
Integral Non-linearity
> -1
—
<1
LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.3V
AD22c DNL
Differential Non-linearity > -1
—
<1
LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.3V
(Note 2)
AD23c GERR
Gain Error
> -1
—
<1
LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.3V
AD24c EOFF
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 VBORMIN < VDD < 2.5V, but with degraded performance. Unless otherwise
stated, module functionality is tested, but not characterized.
 2011-2012 Microchip Technology Inc.
Preliminary
DS61168E-page 273