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MP7612 Datasheet(数据表) 6 Page - Exar Corporation

部件型号  MP7612
说明  Octal 12-Bit DAC Array D/A Converter with Output Amplifier and Serial Data/Address uP Control Logic
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制造商  EXAR [Exar Corporation]
网页  http://www.exar.com
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MP7612 Datasheet(HTML) 6 Page - Exar Corporation

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MP7612
6
Rev. 3.00
ELECTRICAL CHARACTERISTICS (CONT’D)
Specifications are subject to change without notice
NOTES:
1
Guaranteed; not tested.
2
Specified values guarantee functionality.
3
Digital inputs should not go below digital GND or exceed DVDD supply voltage.
4
See Figures 2 and 3. All digital input signals are specified with tR = tF = 10 ns 10% to 90% and timed from a 50% voltage level.
5
For power supply values <
2VREF, the output swing is limited as specified in Analog Outputs.
6
Digital feedthrough and channel-to-channel crosstalk are heavily dependent on the board layout and environment.
ABSOLUTE MAXIMUM RATINGS (TA = +25
°C unless otherwise noted)1, 2
VCC to AGND
+16.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . .
VEE to AGND
–16.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . .
DVDD to DGND
+6.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . .
VREF to DGND
+7.0 V
. . . . . . . . . . . . . . . . . . . . . . . . . . .
AGND to DGND
+1 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
(Functionality guaranteed for
0.5 V only)
Digital Input & Output Voltage to DGND –0.5 to DVDD
+0.5V
Analog Inputs & Outputs
Indefinite Shorts to
. . . . . . .
VCC, VEE, DVDD, AGND, DGND (provided that power
dissipation of the package spec is not exceeded)
Operating Temperature Range
Extended Industrial
–40
°C to +85°C
. . . . . . . . . . . . . .
Maximum Junction Temperature
–65
°C to 150°C
. . .
Storage Temperature
150
°C
. . . . . . . . . . . . . . . . . . . . . .
Lead Temperature (Soldering, 10 sec)
+300
°C
. . . . .
Package Power Dissipation Rating @ 75
°C
SOIC, PLCC
1150mW
. . . . . . . . . . . . . . . . . . . . . . . .
Derates above 75
°C
15mW/
°C
. . . . . . . . . . . . . . . . .
NOTES:
1
Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a
stress rating only and functional operation at or above this specification is not implied. Exposure to maximum rating
conditions for extended periods may affect device reliability.
2
Any input pin which can see a value outside the absolute maximum ratings should be protected by Schottky diode clamps
(HP5082-2835) from input pin to the supplies.
All inputs have protection diodes which will protect the device from short
transients outside the supplies of less than 100mA for less than 100
µs.
APPLICATION NOTES
Refer to Section 8 in the 1995 Data Acquisition products Databook for Applications Information
NOTE: When using these DACs to drive remote devices, the accuracy of the output can be improved by utilizing a remote analog
ground connection. The difference between the DGND and AGND should be limited to
300 mV to assure normal operation. If there
is any chance that the AGND to DGND can be greater than
1 V, we recommend two back-to-back diodes be used between DGND
and AGND to clamp the voltage and prevent damage to the DAC. Using a buffer between the remote ground location and AGND may
help reduce noise induced from long lead or trace lengths.




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