AD8271BRMZ-R7 Ver la hoja de datos (PDF) - Analog Devices

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Fabricante

AD8271BRMZ-R7

Programmable Gain Precision Difference Amplifier

Analog Devices 

AD8271

ABSOLUTE MAXIMUM RATINGS

Table 5.

Parameter

Supply Voltage

Output Short-Circuit Current

Input Voltage Range

Storage Temperature Range

Specified Temperature Range

Package Glass Transition Temperature (TG)

ESD

Human Body Model

Charge Device Model

Machine Model

Rating

±18 V

See derating curve in

Figure 2

+VS + 0.4 V to

−VS − 0.4 V

−65°C to +130°C

−40°C to +85°C

150°C

1 kV

1 kV

0.1 kV

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.

THERMAL RESISTANCE

Table 6. Thermal Resistance

Package Type

θJA

θJC

10-Lead MSOP

141.9 43.7

Unit

°C/W

The θJA values in Table 6 assume a 4-layer JEDEC standard

board with zero airflow.

MAXIMUM POWER DISSIPATION

The maximum safe power dissipation for the AD8271 is limited

by the associated rise in junction temperature (TJ) on the die. At

approximately 150°C, which is the glass transition temperature,

the properties of the plastic change. Even temporarily exceeding

this temperature limit may change the stresses that the package

exerts on the die, permanently shifting the parametric perfor-

mance of the amplifiers. Exceeding a temperature of 150°C for

an extended period of time can cause changes in silicon devices,

potentially resulting in a loss of functionality.

The AD8271 has built-in short-circuit protection that limits

the output current to approximately 100 mA (see Figure 22 for

more information). Although the short-circuit condition itself

does not damage the part, the heat generated by the condition

can cause the part to exceed its maximum junction temperature,

with corresponding negative effects on reliability.

1.6

1.4

TJ MAX = 150°C

1.2

1.0

0.8

0.6

0.4

0.2

0

–50 –25

0

25

50

75

100 125

AMBIENT TEMPERATURE (C)

Figure 2. Maximum Power Dissipation vs. Ambient Temperature

ESD CAUTION

Rev. 0 | Page 6 of 20

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