Microchip Technology TDGL002 - chipKIT Uno32 Development Board TDGL002 TDGL002 Data Sheet

Product codes
TDGL002
Page of 214
PIC32MX3XX/4XX
DS61143H-page 182
© 2011 Microchip Technology Inc.
 
TABLE 29-36: ANALOG-TO-DIGITAL CONVERSION TIMING REQUIREMENTS
AC CHARACTERISTICS
Standard Operating Conditions: 2.3V to 3.6V
(unless otherwise stated)
Operating temperature
-40°C 
≤ T
A
 
≤ +85°C for Industrial
-40°C 
≤ T
A
 
≤ +105°C for V-Temp
Param. 
No.
Symbol
Characteristics
Min.
Typical
(1)
Max.
Units
Conditions
Clock Parameters
AD50
T
AD
Analog-to-Digital Clock Period
65
ns
See 
 and 
Note 2
AD51
TRC
Analog-to-Digital Internal RC 
Oscillator Period
250
ns
See Note 3
Conversion Rate
AD55
TCONV
Conversion Time
12 T
AD
AD56
F
CNV
Throughput Rate 
(Sampling Speed)
1000
KSPS
AV
DD
 = 3.0V to 3.6V
400
KSPS
AV
DD
 = 2.5V to 3.6V
AD57
T
SAMP
Sample Time
1 T
AD
T
SAMP
 must be 
≥ 132 
ns.
Timing Parameters
AD60
TPCS
Conversion Start from Sample
Trigger
1.0 T
AD
Auto-Convert Trigger 
(SSRC<2:0> = 111) 
not selected.
See Note 3
AD61
TPSS
Sample Start from Setting
Sample (SAMP) bit
0.5 T
AD
1.5 T
AD
AD62
TCSS
Conversion Completion to
Sample Start (ASAM = 1)
0.5 T
AD
See Note 3
AD63
TDPU
Time to Stabilize Analog Stage 
from Analog-to-Digital OFF to 
Analog-to-Digital ON
2
μs
See Note 3
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.
3:
Characterized by design but not tested.