MP7680 datasheet(6/12 Pages) EXAR

6 / 12 page

MP7680

Rev. 3.10

ELECTRICAL

CHARACTERISTICS

(CONT’D)

°C

Tmin to Tmax

Notes:

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

Guaranteed

but not production

tested.

See timing diagram (Figure 2.).

DV DD and AVDD are connected

through the silicon substrate.

Connect

together at the package.

DC voltage differences

will cause undesirable

internal currents.

Specifications

are subject to change

without

notice

Parameter

Symbol

Min

Typ

Max

Min

Max

Units

Test Conditions/Comments

POWER

SUPPL Y 4

Functional Voltage Range

VDD

4.5

5.5

4.5

5.5

Supply Current

IDD

Digital inputs = VIL or VIH

Digital inputs = 0 or 5 V

TIMING CHARACTERISTICS

2 , 3

Write Pulse Width

tWR

Chip Select Set-Up Time

tCS

100

120

Address Set-Up Time

tAS

100

120

Chip Select and Address Hold

Time

Latch Select Set-Up Time

tBS

120

150

Latch Select Hold Time

tBH

Data Valid Set-Up Time

tDS

100

120

Data Valid Hold Time

tDH

Transfer Pulse Width

tXFER

Write Cycle (per DAC)

tWC

175

200

ABSOLUTE

MAXIMUM

RA TINGS

(TA = +25

°C unless otherwise noted) 1, 2

VDD to AGND

-0.5 to +7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

VDD to DGND

-0.5 to +7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital Input Voltage to DGND

GND -0.5 to VDD +0.5 V

. . . .

Any IOUT1, IOUT2 to AGND

GND -0.5 to VDD +0.5 V

. . . . . . .

Any VREF to AGND

+25 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

AGND to DGND

+1 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(Functionality Guaranteed +0.5 V)

Any VRFB to AGND

+25 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage Temperature

-65°C to +150°C

. . . . . . . . . . . . . . . . . .

Lead Temperature (Soldering, 10 seconds)

+300°C

. . . . . . .

Package Power Dissipation Rating to 75°C

CDIP, PDIP, PQFP

800mW

. . . . . . . . . . . . . . . . . . . . . . . . .

Derates above 75°C

11mW/°C

. . . . . . . . . . . . . . . . . . . . .

Notes:

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 .

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

ms.

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