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Data Sheet

AD811

Rev. G | Page 5 of 20

ABSOLUTE MAXIMUM RATINGS

Table 2.

Parameter

Rating

Supply Voltage

±18 V

AD811JR Grade Only

±12 V

Internal Power Dissipation

Observe Derating Curves

8-Lead PDIP Package

θJA = 90°C/ W

8-Lead CERDIP Package

θJA = 110°C/W

8-Lead SOIC_N Package

θJA = 155°C/W

16-Lead SOIC_W Package

θJA = 85°C/W

20-Lead LCC Package

θJA = 70°C/W

Output Short-Circuit Duration

Observe Derating Curves

Common-Mode Input Voltage

±VS

Differential Input Voltage

±6 V

Storage Temperature Range (Q, E)

−65°C to +150°C

Storage Temperature Range (N, R)

−65°C to +125°C

Operating Temperature Range

AD811J

0°C to +70°C

AD811A

−40°C to +85°C

AD811S

−55°C to +125°C

Lead Temperature Range

(Soldering 60 sec)

300°C

Stresses at or above those listed under Absolute Maximum

Ratings may cause permanent damage to the product. This is a

stress rating only; functional operation of the product at these

or any other conditions above those indicated in the operational

section of this specification is not implied. Operation beyond

the maximum operating conditions for extended periods may

affect product reliability.

MAXIMUM POWER DISSIPATION

The maximum power that can be safely dissipated by the AD811 is

limited by the associated rise in junction temperature. For the

plastic packages, the maximum safe junction temperature is 145°C.

For the CERDIP and LCC packages, the maximum junction tem-

perature is 175°C. If these maximums are exceeded momentarily,

proper circuit operation is restored as soon as the die tempera-

ture is reduced. Leaving the device in the overheated condition

for an extended period can result in device burnout. To ensure

proper operation, it is important to observe the derating curves

in Figure 21 and Figure 24.

While the AD811 is internally short-circuit protected, this may

not be sufficient to guarantee that the maximum junction tem-

perature is not exceeded under all conditions. An important

example is when the amplifier is driving a reverse-terminated

75 Ω cable and the cable’s far end is shorted to a power supply.

With power supplies of ±12 V (or less) at an ambient temperature

of +25°C or less, and the cable shorted to a supply rail, the

amplifier is not destroyed, even if this condition persists for

an extended period.

METALIZATION PHOTOGRAPH

Contact the factory for the latest dimensions.

Figure 4. Metalization Photograph

Dimensions Shown in Inches and (Millimeters)

ESD CAUTION

0.0618

(1.57)

0.098 (2.49)

+INPUT

–INPUT

V–

V+

VOUT

AD811

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