Rainbow Electronics ADC10321 - Manual (Page 6)

Converter Electrical Characteristics
(Continued)
The following specifications apply for V
A
= +5.0V
DC
, V
D
= 5.0V
DC
, V
D
I/O = 5.0V
DC
, V
REF
+ = +3.5V
DC
, V
REF
− = +1.5V
DC
,
C
L
= 20pF, f
CLK
= 20MHz, R
S
= 25 Ω. Boldface limits apply for T
A
= T
MIN
to T
MAX
: all other limits T
A
= 25˚C(Note 7)
Symbol Parameter Conditions
Typical
(Note 8)
Limits
(Note 9)
Units
C
IN
Analog V
IN
Input
Capacitance
5 pF
I
IN
Input Leakage Current 10 µA
R
REF
Reference Ladder
Resistance
1000
850
1150
Ω(min)
Ω(max)
V
REF
+ Positive Reference Voltage 3.5 4.0 V(max)
V
REF
− Negative Reference Voltage 1.5 1.3 V(min)
(V
REF
+) −
(V
REF
−)
Total Reference Voltage 2.0
1.0
2.7
V(min)
V(max)
DC and Logic Electrical Characteristics
The following specifications apply for V
A
= +5.0V
DC
, V
D
= +5.0V
DC
, V
D
I/O = 5.0V
DC
, V
REF
+ = +3.5V
DC
, V
REF
− = +1.5V
DC
, C
L
= 20 pF, f
CLK
= 20MHz, R
S
= 25 Ω. Boldface limits apply for T
A
= T
MIN
to T
MAX
: all other limits T
A
= 25˚C(Note 7)
Symbol Parameter Conditions
Typical
(Note 8)
Limits
(Note 9)
Units
CLK, OE, PD, Digital Input Characteristics
V
IH
Logical "1" Input Voltage V
D
= 5.5V 2.0 V(min)
V
IL
Logical "0" Input Voltage V
D
= 4.5V 1.0 V(max)
I
IH
Logical "1" Input Current V
IH
= V
D
10 µA
I
IL
Logical "0" Input Current V
IL
= DGND −10 µA
D00 - D13 Digital Output Characteristics
V
OH
Logical "1" Output
Voltage
V
D
I/O = + 4.5V, I
OUT
= −0.5mA
V
D
I/O = + 2.7V, I
OUT
= −0.5mA
4.0
2.4
V(min)
V(min)
V
OL
Logical "0" Output
Voltage
V
D
I/O = + 4.5V, I
OUT
= −1.6mA
V
D
I/O = + 2.7V, I
OUT
= −1.6mA
0.4
0.4
V(max)
V(max)
I
OZ
TRI-STATE Output
Current
V
OUT
= DGND
V
OUT
= V
D
−10
10
µA
µA
I
OS
Output Short Circuit
Current
V
D
I/O = 3V ± 12 mA
V
D
I/O = 5V ± 25 mA
Power Supply Characteristics
I
A
Analog Supply Current
PD = LOW, Ref not included
PD = HIGH, Ref not included
14.5
0.5
16 mA(max)
I
D
+ I
D
I/O Digital Supply Current
PD = LOW, Ref not included
PD = HIGH, Ref not included
5
0.2
6 mA(max)
P
D
Power Consumption 98 110 mW (max)
AC Electrical Characteristics
The following specifications apply for V
A
= +5.0V
DC
, V
D
I/O = 5.0V
DC
, V
REF
+ = +3.5V
DC
, V
REF
− = +1.5V
DC
, f
CLK
= 20MHz, t
rc
= t
fc
= 5ns, R
S
= 25 Ω. C
L
(data bus loading) = 20 pF, Boldface limits apply for T
A
= T
MIN
to T
MAX
: all other limits T
A
=
25˚C(Note 7)
Symbol Parameter Conditions
Typical
(Note 8)
Limits
(Note 9)
Units
(Limits)
f
CLK1
Maximum Clock Frequency 25 20 MHz(min)
f
CLK2
Minimum Clock Frequency 1 MHz(max)
t
CH
Clock High Time 23 ns(min
t
CL
Clock Low Time 23 ns(min)
Duty Cycle 50
45
55
%(min)
%(max)
ADC10321
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