PIC32MX1XX Datasheet, PDF (277/320 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: 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
—
12 TAD
—
—
—
AD56 FCNV
Throughput Rate
(Sampling Speed)
—
—
1000 ksps AVDD = 3.0V to 3.6V
—
—
400 ksps AVDD = 2.5V to 3.6V
AD57 TSAMP Sample Time
1 TAD
—
—
— TSAMP must be ≥ 132 ns
Timing Parameters
AD60 TPCS
Conversion Start from Sample
Trigger⁽³⁾
—
1.0 TAD
—
— Auto-Convert Trigger
(SSRC<2:0> = 111)
not selected
AD61 TPSS Sample Start from Setting
0.5 TAD
—
1.5 TAD —
—
Sample (SAMP) bit
AD62 TCSS Conversion Completion to
—
0.5 TAD
—
—
—
Sample Start (ASAM = 1)⁽³⁾
AD63 TDPU Time to Stabilize Analog Stage
—
—
2
μs
—
from ADC Off to ADC On⁽³⁾
Note 1: These parameters are characterized, but not tested in manufacturing.
2: Because the sample caps will eventually lose charge, clock rates below 10 kHz can affect linearity
performance, especially at elevated temperatures.
3: Characterized by design but not tested.
© 2011-2012 Microchip Technology Inc.
Preliminary
DS61168D-page 277