AD8383

Rev. 0 | Page 5 of 16

ABSOLUTE MAXIMUM RATINGS

Table 2. AD8383 Stress Ratings

Parameter

Rating

Supply Voltages

AVCCx – AGNDx

18 V

DVCC – DGND

4.5 V

Input Voltages

Maximum Digital Input Voltages

DVCC + 0.5 V

Minimum Digital Input Voltages

DGND – 0.5 V

Maximum Analog Input Voltages

AVCC + 0.5 V

Minimum Analog Input Voltages

AGND – 0.5 V

Internal Power Dissipation8

LFCSP Package @ 25°C Ambient

3.8 W

Operating Temperature Range

0°C to 85°C

Storage Temperature Range

–65°C to +125°C

Lead Temperature Range (Soldering 10 sec)

300°C

Stresses above those listed under the 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 the

absolute maximum ratings for extended periods may reduce

device reliability.

MAXIMUM POWER DISSIPATION

Junction Temperature

The maximum power that can be safely dissipated by the

AD8383 is limited by its junction temperature. The maximum

safe junction temperature for plastic encapsulated devices as

determined by the glass transition temperature of the plastic is

approximately 150°C. Exceeding this limit temporarily may

cause a shift in the 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.

Overload Protection

The AD8383 employs a 2-stage overload protection circuit that

consists of an output current limiter and a thermal shutdown.

The maximum current at any one output of the AD8383 is

internally limited to 100 mA, average. In the event of a momen-

tary short-circuit between a video output and a power supply

rail (AVCC or AGND), the output current limit is sufficiently

low to provide temporary protection.

The thermal shutdown debiases the output amplifier when the

junction temperature reaches the internally set trip point. In the

event of an extended short-circuit between a video output and a

power supply rail, the output amplifier current continues to

switch between 0 mA and 100 mA typical with a period

determined by the thermal time constant and the hysteresis of

the thermal trip point. The thermal shutdown provides long-

term protection by limiting the average junction temperature to

a safe level.

Operating Temperature Range

Production testing guarantees a minimum thermal shutdown

maximum power dissipation as described in the Applications

section.

Exposed Paddle

The die paddle must be soldered to AVCC for reliable electrical

operation.

See the Applications section for details regarding use of the

exposed paddles to dissipate excess heat.

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.