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AD7245A Datasheet(PDF) 3 Page - Analog Devices

Part No. AD7245A
Description  LC2MOS 12-Bit DACPORTs
Download  16 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD7245A Datasheet(HTML) 3 Page - Analog Devices

 
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AD7245A/AD7248A
REV. A
–3–
SWITCHING CHARACTERISTICS1 (V
DD = +12 V to +15 V;
2 V
SS = O V or –12 V to –15 V;
2 See Figures 5 and 7.)
Parameter
A, B Versions
T Version
Units
Conditions
t1
@ +25
°C
55
55
ns typ
Chip Select Pulse Width
TMIN to TMAX
80
100
ns min
t2
@ +25
°C
40
40
ns typ
Write Pulse Width
TMIN to TMAX
80
100
ns min
t3
@ +25
°C
0
0
ns min
Chip Select to Write Setup Time
TMIN to TMAX
0
0
ns min
t4
@ +25
°C
0
0
ns min
Chip Select to Write Hold Time
TMIN to TMAX
0
0
ns min
t5
@ +25
°C
40
40
ns typ
Data Valid to Write Setup Time
TMIN to TMAX
80
80
ns min
t6
@ +25
°C
10
10
ns min
Data Valid to Write Hold Time
TMIN to TMAX
10
10
ns min
t7
@ +25
°C
40
40
ns typ
Load DAC Pulse Width
TMIN to TMAX
80
100
ns min
t8 (AD7245A only)
@ +25
°C
40
40
ns typ
Clear Pulse Width
TMIN to TMAX
80
100
ns min
NOTES
1Sample tested at +25
°C to ensure compliance.
2Power supply tolerance is
± 10% for A Version and ±5% for B and T Versions.
ABSOLUTE MAXIMUM RATINGS
1
VDD to AGND . . . . . . . . . . . . . . . . . . . . . . . . .–0.3 V to +17 V
VDD to DGND . . . . . . . . . . . . . . . . . . . . . . . . .–0.3 V to +17 V
VDD to VSS . . . . . . . . . . . . . . . . . . . . . . . . . . . .–0.3 V to +34 V
AGND to DGND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V, VDD
Digital Input Voltage to DGND . . . . . . . . –0.3 V, VDD +0.3 V
VOUT to AGND
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . VSS, VDD
VOUT to VSS
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V, +24 V
VOUT to VDD
2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –32 V, 0 V
REF OUT
2 to AGND . . . . . . . . . . . . . . . . . . . . . . . . 0 V, V
DD
Power Dissipation (Any Package) to +75
°C . . . . . . . . 450 mW
Derates above +75
°C by . . . . . . . . . . . . . . . . . . . . 6 mW/°C
Operating Temperature
Commercial (A, B Versions) . . . . . . . . . . . –40
°C to +85°C
Extended (S Version) . . . . . . . . . . . . . . . –55
°C to +125°C
Storage Temperature . . . . . . . . . . . . . . . . . . –65
°C to +150°C
Lead Temperature (Soldering, 10 secs) . . . . . . . . . . . . +300
°C
NOTES
1Stresses above those listed under “Absolute Maximum Ratings” may cause per-
manent damage to the device. This is a stress rating only and functional opera-
tion of the device at these or any other conditions above those listed in the
operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
2The output may be shorted to voltages in this range provided the power dissipa-
tion of the package is not exceeded. VOUT short circuit current is typically
80 mA.
WARNING!
ESD SENSITIVE DEVICE
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD7245A/AD7248A features proprietary ESD protection circuitry, permanent
damage may occur on devices subjected to high energy electrostatic discharges. Therefore,
proper ESD precautions are recommended to avoid performance degradation or loss of function-
ality.


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