3 a-to-d converter – Atmel AT89C5132 User Manual
Page 16
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4173ES–USB–09/07
AT89C5132
Figure 6-2.
I
DL
Test Condition, Idle Mode
Figure 6-3.
I
PD
Test Condition, Power-Down Mode
6.2.3
A-to-D Converter
Table 2. A-to-D Converter DC Characteristics
V
DD
= 2.7 to 3.3V , T
A
= -40 to +85
°
C
X2
VDD
Clock Signal
RST
VSS
TST
X1
P0
(NC)
I
DL
All other pins are unconnected
VSS
VDD
VSS
VDD
PVDD
UVDD
AVDD
PVSS
UVSS
AVSS
RST
MCMD
P0
All other pins are unconnected
VSS
VDD
TST
MDAT
VDD
I
PD
VDD
PVDD
UVDD
AVDD
X2
VSS
X1
(NC)
VSS
PVSS
UVSS
AVSS
Symbol
Parameter
Min
Typ
Max
Units
Test Conditions
AV
DD
Analog
Supply
Voltage
2.7
3.3
V
AI
DD
Analog Operating Supply Current
600
μ
A
AV
DD
= 3.3V
AIN1:0 = 0 to AV
DD
AI
PD
Analog Standby Current
2
μ
A
A
V
DD
= 3.3V
ADEN = 0 or PD = 1
AV
IN
Analog Input Voltage
AV
SS
A
V
DD
V
AV
REF
Reference Voltage
A
REFN
A
REFP
AV
SS
2.4
A
V
DD
V
V
R
REF
AREF Input Resistance
10
30
k
Ω
T
A
= 25
°
C
C
IA
Analog Input capacitance
10
pF
T
A
= 25
°
C