Instruction Manual

Absolute Maximum Ratings
(Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
A
,V
D
,V
DR
4.2V
|V
A
–V
D
| ≤ 100 mV
V
DR
–V
D
≤ 300 mV
Voltage on Any Pin −0.3V to V
A
or (V
D
+ 0.3V)
Input Current at Any Pin (Note 3)
±
25 mA
Package Input Current (Note 3)
±
50 mA
Package Dissipation at T
A
= 25˚C See (Note 4)
ESD Susceptibility
Human Body Model (Note 5) 2500V
Machine Model (Note 5) 250V
Soldering Temperature,
Infrared, 10 sec. (Note 6) 235˚C
Storage Temperature −65˚C to +150˚C
Operating Ratings (Notes 1, 2)
Operating Temperature −40˚C ≤ T
A
≤ +85˚C
Supply Voltage (V
A
,V
D
) +3.0V to +3.60V
Output Driver Supply (V
DR
) +2.4V to V
D
V
REF
0.8V to 1.5V
CLK, PD, OF −0.05V to V
D
+ 0.05V
V
IN
Input −0V to (V
A
− 0.5V)
V
CM
0.5V to (V
A
-1.5V)
|AGND–DGND| 0V
Package Thermal Resistances
Package θ
J-A
32-Lead LQFP 79˚C / W
Converter Electrical Characteristics
Unless otherwise specified, the following specifications apply for AGND = DGND = DR GND = 0V, V
A
=V
D
= +3.3V, V
DR
=
+2.5V, PD = 0V, V
REF
= +1.0V external, V
CM
= 1.65V, R
S
<
100Ω,f
CLK
= 80 MHz, t
r
=t
f
= 2 ns, f
IN
= 70 MHz, C
L
= 15 pF/pin.
Boldface limits apply for T
J
=T
MIN
to T
MAX
: all other limits T
J
= 25˚C (Notes 7, 8, 9, 10)
Symbol Parameter Conditions
Typical
(Note 10)
Limits
(Note 10)
Units
(Limits)
STATIC CONVERTER CHARACTERISTICS
Resolution with No Missing Codes 12 Bits
INL Integral Non Linearity Best Fit Method
±
1.2
4.0 LSB (max)
-3.3 LSB (min)
DNL Differential Non Linearity No missing codes
±
0.4
1.5 LSB (max)
-1.0 LSB (min)
GE Gain Error
Positive Error −0.15
+5.7
-2
%FS (max)
%FS (min)
Negative Error +0.4
+5
-3.7
%FS (max)
%FS (min)
Offset Error (V
IN
+=V
IN
−)
+0.2
+1.7
-0.6
%FS (max)
Under Range Output Code 0 0
Over Range Output Code 4095 4095
REFERENCE AND ANALOG INPUT CHARACTERISTICS
V
CM
Common Mode Input Voltage 1.65
0.5 V (min)
2.0 V (max)
C
IN
V
IN
Input Capacitance
(each pin to GND)
V
IN
= 1.0 Vdc
+1V
P-P
(CLK LOW) 8 pF
(CLK HIGH) 7 pF
V
REF
Reference Voltage (Note 12) 1.0
0.8 V (min)
1.5 V (max)
ADC12L080
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