ADA4899-1YCPZ-RL datasheet(6/21 Pages) AD

Numer części	ADA4899-1YCPZ-RL

Szczegółowy opis	Unity-Gain Stable, Ultralow Distortion, 1 nV/?뺿z Voltage Noise, High Speed Op Amp

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Data Sheet

ADA4899-1

Rev. C | Page 5 of 20

ABSOLUTE MAXIMUM RATINGS

Table 3.

Parameter

Rating

Supply Voltage

12.6 V

Power Dissipation

See Figure 4

Differential Input Voltage

±1.2 V

Differential Input Current

±10 mA

Storage Temperature Range

–65°C to +150°C

Operating Temperature Range

–40°C to +125°C

Lead Temperature (Soldering 10 sec)

300°C

Junction Temperature

150°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 safe power dissipation in the ADA4899-1

package is limited by the associated rise in junction temperature

(TJ) on the die. The plastic encapsulating the die locally reaches

the junction temperature. At approximately 150°C, which is the

glass transition temperature, the plastic changes its properties.

Even temporarily exceeding this temperature limit may change

the stresses that the package exerts on the die, permanently

shifting the parametric performance of the ADA4899-1.

Exceeding a junction temperature of 150°C for an extended

period can result in changes in silicon devices, potentially

causing failure.

The still-air thermal properties of the package and PCB (θJA),

the ambient temperature (TA), and the total power dissipated in

the package (PD) determine the junction temperature of the die.

The junction temperature is calculated as

TJ = TA + (PD × θJA)

The power dissipated in the package (PD) is the sum of the

quiescent power dissipation and the power dissipated in the

package due to the load drive for all outputs. The quiescent

power is the voltage between the supply pins (VS) times the

quiescent current (IS). Assuming the load (RL) is referenced to

midsupply, the total drive power is VS/2 × IOUT, some of which is

dissipated in the package and some in the load (VOUT × IOUT).

The difference between the total drive power and the load

power is the drive power dissipated in the package.

PD = Quiescent Power + (Total Drive Power – Load Power)

(

)

L

OUT

L

OUT

S

D

R

V

R

V

I

V

P

2

–

2













×

+

×

=

RMS output voltages should be considered. If RL is referenced to

VS–, as in single-supply operation, the total drive power is VS ×

IOUT. If the rms signal levels are indeterminate, consider the

worst case, when VOUT = VS/4 for RL to midsupply.

(

) (

)

L

S

D

R

/

V

I

V

P

2

4

+

×

=

In single-supply operation with RL referenced to VS–, the worst

case is VOUT = VS/2.

Airflow increases heat dissipation, effectively reducing θJA. In

addition, more metal directly in contact with the package leads

from metal traces, through holes, ground, and power planes

reduces the θJA. Soldering the exposed paddle to the ground

plane significantly reduces the overall thermal resistance of the

package.

Figure 4 shows the maximum safe power dissipation in the

package vs. the ambient temperature for the exposed paddle

(EPAD) 8-lead SOIC (70°C/W) and 8-lead LFCSP (70°C/W)

packages on a JEDEC standard 4-layer board. θJA values are

approximations.

AMBIENT TEMPERATURE (°C)

120

–40

–20

0

20

40

60

80

100

0.0

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

LFCSP AND SOIC

Figure 4. Maximum Power Dissipation vs. Ambient Temperature

ESD CAUTION

Podobny numer części - ADA4899-1YCPZ-RL

Producent	Numer części	Arkusz danych	Szczegółowy opis
Analog Devices	ADA4899-1YCPZ-RL	617Kb / 20P	Unity Gain Stable, Ultralow Distortion, 1 nV/ Hz Voltage Noise, High Speed Op Amp REV. A
Analog Devices	ADA4899-1YCPZ-RL	650Kb / 20P	Unity-Gain Stable, Ultralow Distortion, 1 nV/?숰z Voltage Noise, High Speed Op Amp REV. B

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Podobny opis - ADA4899-1YCPZ-RL

Producent	Numer części	Arkusz danych	Szczegółowy opis
Analog Devices	ADA4899-1	650Kb / 20P	Unity-Gain Stable, Ultralow Distortion, 1 nV/?숰z Voltage Noise, High Speed Op Amp REV. B
	ADA4899-1	617Kb / 20P	Unity Gain Stable, Ultralow Distortion, 1 nV/ Hz Voltage Noise, High Speed Op Amp REV. A
	AD8099	811Kb / 29P	Ultralow Distortion, High Speed 0.95 nV/?뺿z Voltage Noise Op Amp REV. D
	ADA4898-1	431Kb / 20P	High Voltage, Low Noise, Low Distortion, Unity-Gain Stable, High Speed Op Amp
	ADA4898-1	432Kb / 16P	High Voltage, Low Noise, Low Distortion, Unity Gain Stable, High Speed Op Amp REV. 0
	ADA4898-2YRDZ	408Kb / 20P	High Voltage, Low Noise, Low Distortion,Unity-Gain Stable, High Speed Op Amp REV. D
	AD8099	1Mb / 28P	Ultralow Distortion, High Speed 0.95 nV/Hz Voltage Noise Op Amp REV. B
	AD8045	519Kb / 26P	3 nV/?숰z, Ultralow Distortion, High Speed Op Amp
	AD8045	667Kb / 24P	3 nV/Hz Ultralow Distortion, High Speed Op Amp REV. A
	AD8045	709Kb / 25P	3 nV/Hz Ultralow Distortion, High Speed Op Amp REV. A

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