MP7626 查看數據表（PDF） - Exar Corporation

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MP7626

Microprocessor Compatible Buffered Multiplying 16-Bit Digital-to-Analog Converter

Exar Corporation 

MP7626

ELECTRICAL CHARACTERISTICS (CON’T)

Parameter

25°C

Symbol Min Typ Max

SWITCHING

CHARACTERISTICS2, 4

Tmin to Tmax

Min Max

Units

Test Conditions/Comments

Data Valid to Write Set-Up Time

tDS

250

ns

Write Strobe Width

tSW

125

ns

NOTES:

1 Full Scale Range (FSR) is 10V for unipolar mode.

2 Guaranteed but not production tested.

3 Digital input levels should not go below ground or exceed the positive supply voltage, otherwise damage may occur.

4 See timing diagram.

5 Specified values guarantee functionality. Refer to other parameters for accuracy.

Specifications are subject to change without notice

ABSOLUTE MAXIMUM RATINGS (TA = +25°C unless otherwise noted)1, 2

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +17 VDC

Voltage at Any Digital Input . . . . . GND –0.5 to VDD +0.5 V

DC Voltage Applied to IOUT1 or IOUT2 . . GND –0.5 to +17 V

Voltage at VREF, RFB Inputs . . . . . . . . . . . . . . . . . . . . . . +25 V

Storage Temperature Range . . . . . . . . . . . . –65°C to 150°C

Package Power Dissipation Rating to 75°C

CDIP, PDIP, PLCC . . . . . . . . . . . . . . . . . . . . . . . 1050mW

Derates above 75°C . . . . . . . . . . . . . . . . . . . . . 14mW/°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 100µs.

APPLICATION NOTES

Refer to Applications Section for Additional Information

LATCH CONTROL

MSB

LATCH

0

1

0

1

LSB

LATCH

0

0

1

1

FUNCTION

Data Latched (Held)

Transfer (DB15-DB8) to DAC

Transfer (DB7-DB0) to DAC

Transparent Mode

Rev. 2.00

TIMING DIAGRAM

Data Changing

Data Stable

ÉÉÉÉÉÉ ÉÉÉÉÉÉÉÉÉÉÉÉ ÉÉÉÉDATA

tDS

tSW

LATCH

tS

OUTPUT

4

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