Datasheet
2012-2013 Microchip Technology Inc. DS60001185C-page 307
PIC32MX330/350/370/430/450/470
TABLE 30-36: ANALOG-TO-DIGITAL CONVERSION TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.5V to 3.6V
(unless otherwise stated)
Operating temperature -40°C T
A +85°C for Industrial
-40°C T
A +105°C for V-temp
Param.
No.
Symbol Characteristics Min. Typical
(1)
Max. Units Conditions
Clock Parameters
AD50 T
AD ADC Clock Period
(2)
65 — — ns See Table 30-35
Conversion Rate
AD55 T
CONV Conversion Time — 12 TAD —— —
AD56 FCNV Throughput Rate
(Sampling Speed)
(4)
— — 1000 ksps AVDD = 3.0V to 3.6V
——400kspsAVDD = 2.5V to 3.6V
AD57 T
SAMP Sample Time 2 TAD ——— —
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
Sample (SAMP) bit
0.5 TAD — 1.5 TAD ——
AD62 T
CSS Conversion Completion to
Sample Start (ASAM = 1)
(3)
—0.5 TAD —— —
AD63 T
DPU Time to Stabilize Analog Stage
from ADC Off to ADC On
(3)
—— 2s—
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.
4: Refer to Table 30-35 for detailed conditions.