AD816 查看數據表（PDF） - Analog Devices

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AD816

500 mA Differential Driver and Dual Low Noise (VF) Amplifiers

Analog Devices 

AD816

ABSOLUTE MAXIMUM RATINGS1

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 18 V Total

Internal Power Dissipation2

Plastic (Y, YS and VR) . . 3.05 W (Observe Derating Curves)

Input Voltage (Common Mode) . . . . . . . . . . . . . . . . . . . . ± VS

Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . ± 6 V

Output Short Circuit Duration

. . . . . . . . . . . . . . . . . . . . . . Observe Power Derating Curves

Storage Temperature Range

Y, YS, VR Package . . . . . . . . . . . . . . . . . . –65°C to +125°C

Operating Temperature Range

AD816A . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to +85°C

Lead Temperature Range (Soldering, 10 sec) . . . . . . . +300°C

NOTES

1Stresses above those listed under Absolute Maximum Ratings may cause perma-

nent 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.

2Specification is for device in free air: 15-Lead Through Hole and Surface Mount:

θJA = 41°C/W.

PIN CONFIGURATION

Y-15

VR-15, YS-15

TOP VIEW

TOP VIEW

MAXIMUM POWER DISSIPATION

The maximum power that can be safely dissipated by the

AD816 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.

The AD816 has thermal shutdown protection, which guarantees

that the maximum junction temperature of the die remains below a

safe level. However, shorting the output to ground or either power

supply for an indeterminate period will result in device failure.

To ensure proper operation, it is important to observe the derat-

ing curves and refer to the section on power considerations.

It must also be noted that in high (noninverting) gain configura-

tions (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 tempera-

ture rise due to total internal power.

14

TJ = 150؇C

13

12

θJA = 16؇C/W

11

SOLDERED DOWN TO

10

COPPER HEAT SINK AREA

(STILL AIR = 0FT/MIN)

9

AD816 AVR, AY

8

7

θJA = 41؇C/W

6

(STILL AIR = 0FT/MIN)

5

NO HEAT SINK

4

AD816 AVR, AY

3

2

1

0

–50 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90

AMBIENT TEMPERATURE – ؇C

Figure 1. Plot of Maximum Power Dissipation vs. Tem-

perature (Copper Heat Sink Area = 2 in.2)

Model

AD816AY

AD816AYS

AD816AVR

Temperature Range

–40°C to +85°C

–40°C to +85°C

–40°C to +85°C

ORDERING GUIDE

Package Description

15-Lead Through-Hole SIP with Staggered Leads and 90° Lead Form

15-Lead Through-Hole SIP with Staggered Leads and Straight Lead Form

15-Lead Surface Mount DDPAK

Package

Option

Y-15

YS-15

VR-15

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 AD816 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

–4–

REV. B

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