DSPIC33FJ12GP202 Microchip Technology Inc., DSPIC33FJ12GP202 Datasheet - Page 224
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DSPIC33FJ12GP202
Manufacturer Part Number
DSPIC33FJ12GP202
Description
High-performance, 16-bit Digital Signal Controllers
Manufacturer
Microchip Technology Inc.
Datasheet
1.DSPIC33FJ12GP202.pdf
(242 pages)
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dsPIC33FJ12GP201/202
FIGURE 21-17:
TABLE 21-37: ADC CONVERSION (12-BIT MODE) TIMING REQUIREMENTS
DS70264B-page 222
AC CHARACTERISTICS
AD50
AD51
AD55
AD56
AD57
AD60
AD61
AD62
AD63
Note 1:
Param
No.
1 – Software sets AD1CON. SAMP to start sampling.
2 – Sampling starts after discharge period. T
3 – Software clears AD1CON. SAMP to start conversion.
4 – Sampling ends, conversion sequence starts.
Instruction
Execution
2:
ADCLK
SAMP
DONE
AD1IF
Section 28. “10/12-bit ADC without DMA” in the “dsPIC33F Family
Reference Manual”. Please see the Microchip web site for the
latest dsPIC33F Family Reference Manual sections.
T
t
t
F
T
t
t
t
t
RC
CONV
PCS
PSS
CSS
DPU
Symbol
AD
SAMP
CNV
Because the sample caps will eventually lose charge, clock rates below 10 kHz can affect linearity
performance, especially at elevated temperatures.
These parameters are characterized but not tested in manufacturing.
AD61
Set SAMP
AD50
ADC Clock Period
ADC Internal RC Oscillator
Period
Conversion Time
Throughput Rate
Sample Time
Conversion Start from Sample
Trigger
Sample Start from Setting
Sample (SAMP) bit
Conversion Completion to
Sample Start (ASAM = 1)
Time to Stabilize Analog Stage
ADC CONVERSION (12-BIT MODE) TIMING CHARACTERISTICS
(ASAM = 0, SSRC<2:0> = 000)
1
from ADC Off to ADC On
(2)
2
Clear SAMP
Characteristic
AD60
T
SAMP
3
(2)
4
SAMP
(2)
5
Clock Parameters
Timing Parameters
(2)
Conversion Rate
is described in
Preliminary
6
Standard Operating Conditions: 3.0V to 3.6V
(unless otherwise stated)
Operating temperature
0.5 T
3 T
117.6
Min.
—
—
—
—
—
1
AD
AD
1.0 T
0.5 T
14 T
(1)
Typ
250
—
—
—
—
—
AD
AD
AD
AD55
6 – Convert bit 10.
7 – Convert bit 1.
8 – Convert bit 0.
9 – One T
5 – Convert bit 11.
1.5 T
Max.
500
—
—
—
—
—
5
AD
-40°C ≤ T
-40°C ≤ T
AD
Units
Ksps
for end of conversion.
ns
ns
ns
—
—
—
—
μs
© 2007 Microchip Technology Inc.
A
A
≤ +125°C for Extended
7
≤ +85°C for Industrial
Auto Convert Trigger
not selected
8
Conditions
9
—
—
—
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