AD1985 datasheet(10/48 Pages) AD

10 / 48 page

AD1985

Rev. A | Page 10 of 48

ABSOLUTE MAXIMUM RATINGS

Table 15.

Parameter

Min

Max

Unit

POWER SUPPLIES

Digital (DVDD)

–0.3

+3.6

Analog (AVDD)

–0.3

+6.0

INPUT CURRENT

(EXCEPT SUPPLY PINS)

±10.0

ANALOG INPUT VOLTAGE

(SIGNAL PINS)

–0.3

AVDD + 0.3

DIGITAL INPUT VOLTAGE

(SIGNAL PINS)

–0.3

DVDD + 0.3

AMBIENT TEMPERATURE (OPERATING)

°C

STORAGE TEMPERATURE

–65

+150

°C

Stresses above those listed under Absolute Maximum Ratings

may cause permanent damage to the device. This is a stress

rating only; functional operation of the device at these or any

other conditions above those indicated in the operational

section of this specification is not implied. Exposure to absolute

maximum rating conditions for extended periods may affect

device reliability.

ENVIRONMENTAL CONDITIONS

Ambient Temperature Rating

TCASE = Case Temperature in °C

PD = Power Dissipation in W

θJA = Thermal Resistance (Junction to Ambient)

θJC = Thermal Resistance (Junction to Case)

Table 16. Thermal Resistance

Package Type

θJA

θJC

LQFP

50.1°C/W

17.8°C/W

All measurements per EIA/JESD51 with 2S2P test board per EIA/JESD51-7.

ESD CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the

human body and test equipment and can discharge without detection. Although this product features

proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy

electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance

degradation or loss of functionality.

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