PIC32MX3XX_1 Datasheet, PDF (181/208 Pages) Microchip Technology – High-Performance, General Purpose and USB 32-bit Flash Microcontrollers

PIC32MX3XX/4XX
TABLE 29-34: ADC MODULE SPECIFICATIONS (CONTINUED)
AC CHARACTERISTICS
Standard Operating Conditions: 2.5V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
Param.
No.
Symbol
Characteristics
Min.
Typical Max. Units
Conditions
VINL
Absolute VINL Input
AVSS – 0.3
—
AVDD/2 V
—
Voltage
VIN
Absolute Input Voltage AVSS – 0.3
—
AVDD + V
—
0.3
AD17 RIN
Leakage Current
Recommended
Impedance of Analog
Voltage Source
—
±0.001 ±0.610 μA VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.3V
Source Impedance = 10KΩ
—
—
5K
Ω (Note 1)
ADC Accuracy – Measurements with External VREF+/VREF-
AD20c Nr
Resolution
10 data bits
AD21c INL
Integral Nonlinearity
—
—
<±1
AD22c DNL
Differential Nonlinearity
—
—
<±1
AD23c GERR
Gain Error
—
—
<±1
AD24n EOFF
Offset Error
—
—
<±1
AD25c —
Monotonicity
—
—
—
ADC Accuracy – Measurements with Internal VREF+/VREF-
AD20d Nr
Resolution
10 data bits
AD21d INL
Integral Nonlinearity
—
—
<±1
AD22d DNL
Differential Nonlinearity
—
—
<±1
AD23d GERR
Gain Error
—
—
<±4
AD24d EOFF
Offset Error
—
—
<±2
AD25d
— Monotonicity
—
—
—
Dynamic Performance
AD31b SINAD Signal to Noise and
Distortion
55
58.5
—
AD34b ENOB Effective Number of Bits
9.0
9.5
—
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 1 kHz sinewave.
bits
—
LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.3V
LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.3V
(Note 2)
LSb VINL = AVSS = VREFL = 0V,
AVDD = VREFH = 3.3V
LSb VINL = AVSS = 0V,
AVDD = 3.3V
— Guaranteed
bits (Note 3)
LSb VINL = AVSS = 0V,
AVDD = 2.5V to 3.6V
(Note 3)
LSb VINL = AVSS = 0V,
AVDD = 2.5V to 3.6V
(Notes 2,3)
LSb VINL = AVSS = 0V,
AVDD = 2.5V to 3.6V
(Note 3)
LSb VINL = AVSS = 0V,
AVDD = 2.5V to 3.6V
(Note 3)
— Guaranteed
dB (Notes 3,4)
bits (Notes 3,4)
© 2010 Microchip Technology Inc.
DS61143G-page 181