
XC2287M, XC2286M, XC2285M
XC2000 Family Derivatives / Base Line
Electrical Parameters
Data Sheet
101
V2.0, 2009-03
4.3
Analog/Digital Converter Parameters
These parameters describe the conditions for optimum ADC performance.
Note: Operating Conditions apply.
Table 18
A/D Converter Characteristics
Parameter
Symbol
Limit Values
Unit Test
Condition
Min.
Typ.
Max.
Analog reference supply
V
AREF SR
V
AGND
+ 1.0
–
V
DDPA
+ 0.05
V
1)
Analog reference ground
V
AGND SR VSS
- 0.05
–1.5
V
–
Analog input voltage
range
V
AIN SR
V
AGND
–
V
AREF
V
2)
Analog clock frequency
f
ADCI
0.5
–
20
MHz Upper voltage
area3)
0.5
–
16.5
MHz Lower voltage
Conversion time for 10-bit
result4)
t
C10 CC
(13 + STC)
× t
ADCI
+ 2
× t
SYS
––
Conversion time for 8-bit
t
C8 CC
(11 + STC)
× t
ADCI
+ 2
× t
SYS
––
Wakeup time from analog
powerdown, fast mode
t
WAF CC
––4
μs–
Wakeup time from analog
powerdown, slow mode
t
WAS CC
––15
μs–
Broken wire detection
delay against
V
AGND
t
BWG CC
––50
5)
Result below
10% (66H)
Broken wire detection
delay against
V
AREF
t
BWR CC
––50
6)
Result above
80% (332H)
Total unadjusted error7)
TUE CC
–
±1
±2LSB V
AREF = 5.0 V
DNL error
EADNL CC –
±0.8
±1LSB
INL error
EAINL CC –
±0.8
±1.2
LSB
Gain error
EAGAIN
CC
–
±0.4
±0.8
LSB
Offset error
EAOFF CC –
±0.5
±0.8
LSB