DAC1282IPW datasheet(5/43 Pages) TI1

5 / 43 page

DAC1282

www.ti.com

SBAS490

– DECEMBER 2011

ELECTRICAL CHARACTERISTICS (continued)

Minimum/maximum specifications are at TA = –40°C to +85°C. Typical specifications are at TA = +25°C, AVDD = +2.5 V,

AVSS =

–2.5 V, fCLK = 4.096 MHz, VREF = 5 V, and DVDD = 3.3 V, unless otherwise noted. Refer to Figure 50.

DAC1282

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

POWER SUPPLY

AVSS

–2.6

AVDD

AVSS + 4.75

AVSS + 5.25

DVDD

1.65

3.6

Gain = 1/1, VOUT = 0 V

7.4

8.5

mA(11)

AVDD, AVSS current

Pulse mode, VOUT = 0 V

Shutdown

µA

Operating

180

300

µA

DVDD current

Shutdown(12)

µA

Operating

Power

Shutdown(12)

µW

TEMPERATURE RANGE

Specified temperature range

–40

+85

°C

Operating temperature range

–50

+125

°C

Storage temperature range

–65

+150

°C

(11) Analog supply current scales with gain as follows:

IAVDD and IAVSS = 0.016 × VREF × (44 × Gain + 1) + 3.8 (mA).

(12) Digital inputs stopped and maintained at VIH or VIL level.

THERMAL INFORMATION

DAC1282IPW

THERMAL METRIC(1)

PW (TSSOP)

UNITS

24 PINS

θJA

Junction-to-ambient thermal resistance

78.3

θJCtop

Junction-to-case (top) thermal resistance

12.1

θJB

Junction-to-board thermal resistance

33.8

°C/W

ψJT

Junction-to-top characterization parameter

0.3

ψJB

Junction-to-board characterization parameter

33.5

θJCbot

Junction-to-case (bottom) thermal resistance

N/A

(1)

For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

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