PIC32MX1XX_12 Datasheet, PDF (276/328 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 29-34: ANALOG-TO-DIGITAL CONVERSION TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions (see Note 4): 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⁽¹⁾ Max. Units
Conditions
Clock Parameters
AD50 TAD
ADC Clock Period⁽²⁾
65
—
—
ns See Table 29-33
Conversion Rate
AD55 TCONV Conversion Time
AD56 FCNV
Throughput Rate
(Sampling Speed)
AD57 TSAMP Sample Time
—
—
—
1 TAD
12 TAD
—
—
—
—
1000
400
—
—
ksps
ksps
—
—
AVDD = 3.0V to 3.6V
AVDD = 2.5V to 3.6V
TSAMP must be  132 ns
Timing Parameters
AD60 TPCS
Conversion Start from Sample
Trigger⁽³⁾
AD61 TPSS
Sample Start from Setting
Sample (SAMP) bit
—
1.0 TAD
—
0.5 TAD
—
1.5 TAD
— Auto-Convert Trigger
(SSRC<2:0> = 111)
not selected
—
—
AD62 TCSS Conversion Completion to
—
0.5 TAD
—
—
—
Sample Start (ASAM = 1)⁽³⁾
AD63 TDPU Time to Stabilize Analog Stage
—
—
2
s
—
from ADC Off to ADC On⁽³⁾
Note 1:
2:
3:
4:
These parameters are characterized, but not tested in manufacturing.
Because the sample caps will eventually lose charge, clock rates below 10 kHz can affect linearity
performance, especially at elevated temperatures.
Characterized by design but not tested.
The ADC module is functional at VBORMIN < VDD < 2.5V, but with degraded performance. Unless otherwise
stated, module functionality is tested, but not characterized.
DS61168E-page 276
Preliminary
 2011-2012 Microchip Technology Inc.