AD813

REV. B

–6–

METALIZATION PHOTO

Dimensions shown in inches and (mm).

2.5

0.5

–50

80

2.0

1.0

–40

1.5

010

–10

–20

–30

20

30

40

50

60

70

90

AMBIENT TEMPERATURE – C

14-LEAD SOIC

14-LEAD DIP PACKAGE

Figure 3. Maximum Power Dissipation vs. Ambient

Temperature

Maximum Power Dissipation

The maximum power that can be safely dissipated by the

AD813 is limited by the associated rise in junction temperature.

The maximum safe junction temperature for the plastic encap-

sulated parts is determined by the glass transition temperature

of the plastic, about 150

°C. Exceeding this limit temporarily

may cause a shift in parametric performance due to a change in

the stresses exerted on the die by the package. Exceeding a

junction temperature of 175

°C for an extended period can result

in device failure.

While the AD813 is internally short circuit protected, this may

not be enough to guarantee that the maximum junction tem-

perature (150

°C) is not exceeded under all conditions. To

ensure proper operation, it is important to observe the derating

curves.

It must also be noted that in (noninverting) gain configurations

(with low values of gain resistor), a high level of input overdrive

can result in a large input error current, which may result in a

significant power dissipation in the input stage. This power

must be included when computing the junction temperature rise

due to total internal power.

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 the AD813 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.

WARNING!

ESD SENSITIVE DEVICE

12

+IN2

10

+IN3

11

11

11

9 –IN3

8 OUT3

6

–IN1

5

+IN1

4

DISABLE1 1

OUT2 14

–IN2 13

7 OUT1

DISABLE2 2

3

DISABLE3

0.057

(1.45)

0.124

(3.15)