MP7611 View Datasheet(PDF) - Exar Corporation
Part Name
Description
MFG CO.
'MP7611' PDF : 16 Pages View PDF
MP7611
ELECTRICAL CHARACTERISTICS (CONT’D)
Parameter
25°C
Symbol Min Typ Max
DIGITAL TIMING
SPECIFICATIONS1, 4 (CONT’D)
Tmin to Tmax
Min Max Units
Test Conditions/Comments
RD Pulse Width
tRD
600
ns
High Z to Data Valid for Readback
tDA
600
ns
Data Valid for Readback to High Z
tDR
200
ns
R1 Pulse Width
tR1W
100
ns
R2 Pulse Width
tR2W
100
ns
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 1, 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 < ¦2£VREF, 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.
Specifications are subject to change without notice
ABSOLUTE MAXIMUM RATINGS (TA = +25°C unless otherwise noted)1, 2
VDVVRECVECEDDtFtoottoAAoGGDDNGNGDDNNDD.. ..
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+16.5
--16.5
. +6.5
. +7.0
V
V
V
V
Analog Outputs & Inputs
Infinite Shorts
(provided that
ptoowVCeCr ,dVisEsEip,aDtiVonDDo,f
AGND and DGND
the package spec
is
not exceeded)
AGND to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . +1 V
(Functionality guaranteed for ¦0.5 V only)
Digital Input & Digital Output Voltage to:
DDVGDNDD.
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+.5 V
--.5 V
Operating Temperature Range
Extended Industrial . . . . . . . . . . . . . . . --40°C to +85°C
Military . . . . . . . . . . . . . . . . . . . . . . . . . --55°C to +125°C
Maximum Junction Temperature . . . . . . . . . . . . 150°C
Storage Temperature Range . . . . . . --65°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . +300°C
Package Power Dissipation Rating to 75°C
PQFP, PGA, PLCC . . . . . . . . . . . . . . . . . . 800mW
Derates above 75°C . . . . . . . . . . . . . . . . 11mW/°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 100ms.
APPLICATION NOTES
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.
Rev. 3.01
6
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