PIC32MX320F032H_11 Datasheet, PDF (182/214 Pages) Microchip Technology – High-Performance, General Purpose and USB, 32-bit Flash Microcontrollers

PIC32MX3XX/4XX
TABLE 29-36: ANALOG-TO-DIGITAL CONVERSION TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.3V 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
Analog-to-Digital Clock Period
65
—
—
ns See Table 29-35 and
Note 2
AD51 TRC
Analog-to-Digital Internal RC
Oscillator Period
—
250
—
ns See Note 3
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
—
1.0 TAD
—
— Auto-Convert Trigger
(SSRC<2:0> = 111)
not selected.
See Note 3
AD61 TPSS Sample Start from Setting
0.5 TAD
—
1.5 TAD —
—
Sample (SAMP) bit
AD62 TCSS
Conversion Completion to
Sample Start (ASAM = 1)
—
0.5 TAD
—
— See Note 3
AD63 TDPU Time to Stabilize Analog Stage
—
—
2
μs See Note 3
from Analog-to-Digital OFF to
Analog-to-Digital ON
Note 1:
2:
3:
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.
DS61143H-page 182
© 2011 Microchip Technology Inc.