TLV5638

2.7 V TO 5.5 V LOW POWER DUAL 12-BIT DIGITAL-TO-ANALOG

CONVERTER WITH INTERNAL REFERENCE AND POWER DOWN

SLAS225A – JUNE 1999 – REVISED JANUARY 2000

3

POST OFFICE BOX 655303

7 V

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

Reference input voltage range

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Digital input voltage range

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

0

°C to 70°C

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

TLV5638I

–40

°C to 85°C

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

TLV5638Q

–40

°C to 125°C

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

TLV5638M

–55

°C to 125°C

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

–65

°C to 150°C

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

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds

260

°C

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† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

DISSIPATION RATING TABLE

PACKAGE

TA ≤ 25°C

DERATING FACTOR

TA = 70°C

TA = 85°C

TA = 125°C

PACKAGE

A

POWER RATING

ABOVE TA = 25°C‡

A

POWER RATING

A

POWER RATING

A

POWER RATING

D

635 mW

5.08 mW/

°C

407 mW

330 mW

127 mW

FK

1375 mW

11.00 mW/

°C

880 mW

715 mW

275 mW

JG

1050 mW

8.40 mW/

°C

672 mW

546 mW

210 mW

‡ This is the inverse of the traditional Junction-to-Ambient thermal Resistance (R

ΘJA). Thermal Resistances are not production tested and are for

informational purposes only.

recommended operating conditions

MIN

NOM

MAX

UNIT

Supply voltage VDD

VDD = 5 V

4.5

5

5.5

V

Supply voltage, VDD

VDD = 3 V

2.7

3

3.3

V

Power on reset, POR

*0.55

*2

V

High-level digital input voltage, VIH

VDD = 2.7 V to 5.5 V

2

V

Low-level digital input voltage, VIL

VDD = 2.7 V to 5.5 V

0.8

V

Reference voltage, Vref to REF terminal

VDD = 5 V (see Note 1)

AGND

2.048

VDD –1.5

V

Reference voltage, Vref to REF terminal

VDD = 3 V (see Note 1)

AGND

1.024

VDD – 1.5

V

Load resistance, RL

2

k

Ω

Load capacitance, CL

100

pF

Clock frequency, fCLK

20

MHz

TLV5638C

0

70

Operating free air temperature TA

TLV5638I

–40

85

°C

Operating free-air temperature, TA

TLV5638Q

–40

125

°C

TLV5638M

–55

125

*This parameter is not tested for Q and M suffix devices.

NOTE 1: Due to the x2 output buffer, a reference input voltage

≥ (VDD–0.4 V)/2 causes clipping of the transfer function. The output buffer of the

internal reference must be disabled, if an external reference is used.