Datasheet

© 2007-2011 Microchip Technology Inc. DS70290J-page 251
dsPIC33FJ32GP202/204 and dsPIC33FJ16GP304
ADC CONVERSION (10-BIT MODE) TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ TA ≤ +85°C for Industrial
-40°C ≤ T
A ≤ +125°C for Extended
Param
No.
Symbol Characteristic Min. Typ
(1)
Max. Units Conditions
Clock Parameters
AD50 T
AD ADC Clock Period
(1)
76 — — ns —
AD51 tRC ADC Internal RC Oscillator
Period
(1)
— 250 — ns —
Conversion Rate
AD55 t
CONV Conversion Time
(1)
—12 TAD —— —
AD56 F
CNV Throughput Rate
(1)
——1.1Msps —
AD57 T
SAMP Sample Time
(1)
2.0 TAD ——— —
Timing Parameters
AD60 t
PCS Conversion Start from Sample
Trigger
(1)
2.0 TAD — 3.0 TAD — Auto-Convert Trigger
not selected
AD61 t
PSS Sample Start from Setting
Sample (SAMP) bit
(1)
2.0 TAD — 3.0 TAD ——
AD62 t
CSS Conversion Completion to
Sample Start (ASAM = 1)
(1)
— 0.5 TAD —— —
AD63 tDPU Time to Stabilize Analog Stage
from ADC Off to ADC On
(1)
——20μs—
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.