Datasheet

PIC24HJ32GP302/304, PIC24HJ64GPX02/X04 AND PIC24HJ128GPX02/X04
DS70293G-page 340 © 2007-2012 Microchip Technology Inc.
TABLE 28-43: 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 ≤TA ≤+125°C for Extended
Param
No.
Symbol Characteristic Min. Typ
(1)
Max. Units Conditions
Clock Parameters
AD50 T
AD 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 TAD ——— —
Timing Parameters
AD60 t
PCS Conversion Start from Sample
Trigger
(1)
2 TAD —3 TAD — Auto-Convert Trigger
not selected
AD61 tPSS Sample Start from Setting
Sample (SAMP) bit
(1)
2 TAD —3 TAD ——
AD62 t
CSS Conversion Completion to
Sample Start (ASAM = 1)
(1)
— 0.5 TAD —— —
AD63 t
DPU Time to Stabilize Analog Stage
from ADC Off to ADC On
(1,3)
——20μs—
Note 1: These parameters are characterized but not tested in manufacturing.
2: Because the sample caps eventually loses charge, clock rates below 10 kHz may affect linearity
performance, especially at elevated temperatures.
3: The t
DPU is the time required for the ADC module to stabilize at the appropriate level when the module is
turned on (ADxCON1<ADON>=‘1’). During this time, the ADC result is indeterminate.
TABLE 28-44: COMPARATOR TIMING SPECIFICATIONS
AC CHARACTERISTICS
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature -40°C ≤ T
A ≤ +85°C for Industrial
-40°C ≤T
A ≤+125°C for Extended
Param
No.
Symbol Characteristic Min. Typ Max. Units Conditions
300 T
RESP Response Time
(1,2)
— 150 400 ns —
301 T
MC2OV Comparator Mode Change
to Output Valid
(1)
——10μs—
Note 1: Parameters are characterized but not tested.
2: Response time measured with one comparator input at (V
DD - 1.5)/2, while the other input transitions from
V
SS to VDD.