Datasheet

© 2011-2012 Microchip Technology Inc. Preliminary DS39997C-page 309
PIC24FJ16MC101/102 AND PIC24FJ32MC101/102/104
TABLE 26-49: 10-BIT ADC CONVERSION 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 ≤ TA ≤ +125°C for Extended
Param
No.
Symbol Characteristic Min. Typ
(1)
Max. Units Conditions
Clock Parameters
(2)
AD50 TAD ADC Clock Period 76 — — ns —
AD51 t
RC ADC Internal RC Oscillator Period — 250 — ns —
Conversion Rate
AD55 t
CONV Conversion Time — 12 TAD —— —
AD56 F
CNV Throughput Rate — — 1.1 Msps —
AD57 TSAMP Sample Time 2.0 TAD ——— —
Timing Parameters
AD60 t
PCS Conversion Start from Sample
Trigger
(1)
2.0 TAD — 3.0 TAD — Auto-Convert Trigger
(SSRC<2:0> = 111) not
selected
AD61 tPSS Sample Start from Setting
Sample (SAMP) bit
(1)
2.0 TAD — 3.0 TAD ——
AD62 tCSS 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 may affect linearity
performance, especially at elevated temperatures.