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MP7610

Octal 14-Bit DAC Array™ D/A Converter with Output Amplifier and Serial Data/Address mP Control Logic

Exar Corporation 

MP7610

ELECTRICAL CHARACTERISTICS (CONT’D)

Parameter

25°C

Symbol Min Typ Max

DIGITAL TIMING

SPECIFICATIONS1, 4 (CONT’D)

Tmin to Tmax

Min Max Units

LD Rising Edge to SDO

tHZ2

50

ns

Tri-state Disable

LD Rising Edge to CLK Enable

tLDCK

50

ns

LD Set-up Time with Respect

tLDSU

45

ns

to CLK

Test Conditions/Comments

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 < ¦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

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

dViCsCsi,pVaEtiEo,nDoVf DthDe,

AGND, DGND (provided that power

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 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. 4.01

6

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