70592C Datasheet, PDF (284/314 Pages) Microchip Technology – High-Performance, 16-bit Microcontrollers

PIC24HJXXXGPX06A/X08A/X10A
TABLE 24-43: 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 TAD
ADC Clock Period
76
—
—
ns
—
AD51 tRC
ADC Internal RC Oscillator Period —
250
—
ns
—
Conversion Rate
AD55 tCONV Conversion Time
— 12 TAD —
—
—
AD56 FCNV Throughput Rate
—
—
1.1 Msps
—
AD57 TSAMP Sample Time
2 TAD
—
—
—
—
Timing Parameters
AD60 tPCS
Conversion Start from Sample
Trigger⁽²⁾
2.0 TAD —
3.0 TAD
— Auto-Convert Trigger
not selected
AD61 tPSS Sample Start from Setting
2.0 TAD — 3.0 TAD —
—
Sample (SAMP) bit⁽²⁾
AD62 tCSS Conversion Completion to
— 0.5 TAD —
—
—
Sample Start (ASAM = 1)⁽²⁾
AD63 tDPU Time to Stabilize Analog Stage
—
—
20
μs
—
from ADC Off to ADC On^(2,3)
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: tDPU is the time required for the ADC module to stabilize when it is turned on (AD1CON1<ADON> = 1).
During this time, the ADC result is indeterminate.
TABLE 24-44: DMA READ/WRITE 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.
Characteristic
Min.
Typ Max. Units
Conditions
DM1a DMA Read/Write Cycle Time
—
—
2 TCY ns This characteristic applies to
PIC24HJ256GPX06A/X08A/X10A
devices only.
DM1b DMA Read/Write Cycle Time
—
—
1 TCY ns This characteristic applies to all
devices with the exception of the
PIC24HJ256GPX06A/X08A/X10A.
DS70592C-page 284
© 2011 Microchip Technology Inc.