REV. D

AD8021

–5–

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

AD8021 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.

ABSOLUTE MAXIMUM RATINGS

1

Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26.4 V

Power Dissipation . . . . . . . . Observed Power Derating Curves

Input Voltage (Common-Mode) . . . . . . . . . . . . . . .

Differential Input Voltage

±0.8 V

Differential Input Current . . . . . . . . . . . . . . . . . . . . .

±10 mA

Output Short-Circuit Duration

. . . . . . . . . . . . . . . . . . . . . .Observed Power Derating Curves

Storage Temperature . . . . . . . . . . . . . . . . . . –65

∞C to +125∞C

Operating Temperature Range . . . . . . . . . . . –40

∞C to +85∞C

Lead Temperature Range (Soldering, 10 sec) . . . . . . . . 300

∞C

NOTES

nent damage to the device. This is a stress rating only and 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.

used in order to preserve the low noise. If a differential input exceeds

±0.8 V, the

input current should be limited to

±10 mA.

MAXIMUM POWER DISSIPATION

The maximum power that can be safely dissipated by the AD8021

is limited by the associated rise in junction temperature. The maxi-

mum safe junction temperature for plastic encapsulated devices

is determined by the glass transition temperature of the plastic,

approximately 150

∞C. Temporarily exceeding this limit may cause

a shift in parametric performance due to a change in the stresses

exerted on the die by the package. Exceeding a junction tempera-

ture of 175

∞C for an extended period can result in device failure.

While the AD8021 is internally short-circuit protected, this may

not be sufficient to guarantee that the maximum junction tem-

perature (150

∞C) is not exceeded under all conditions. To ensure

proper operation, it is necessary to observe the maximum power

derating curves.

PIN CONFIGURATION

8

7

6

5

1

2

3

4

LOGIC

REFERENCE

–IN

+IN

DISABLE

AD8021

AMBIENT TEMPERATURE ( C)

2.0

1.5

1.0

0.5

0.01

–55 –45 –35 –25 –15 –5 5 15 25 35 45

55

65 75

85

8-LEAD SOIC

8-LEAD MSOP

Figure 2. Maximum Power Dissipation vs. Temperature*

*Specification is for device in free air:

∞C/W

∞C/W

PIN FUNCTION DESCRIPTIONS

Pin No. Mnemonic

Function

1

LOGIC REFERENCE Reference for Pin 8

* Voltage

Level. Connect to logic low

supply.

2

–IN

Inverting Input

3

+IN

Noninverting Input

Negative Supply Voltage

Compensation Capacitor. Tie

section for value.)

Output

Positive Supply Voltage

8

DISABLE

Disable, Active Low

*

*When Pin 8 (DISABLE) is about 2 V or more higher than Pin 1 (LOGIC

REFERENCE), the part is enabled. When Pin 8 is brought down to within about

1.5 V of Pin 1, the part is disabled. (See the Specification tables for exact disable and

enable voltage levels.) If the disable feature is not going to be used, Pin 8 can be tied

tively, if Pin 1 and Pin 8 are not connected, the part will be in an enabled state.

ORDERING GUIDE

Model

Temperature Range

Package Description

Package Outline

Branding

AD8021AR

–40

∞C to +85∞C

8-Lead SOIC

R-8

AD8021AR-REEL

–40

∞C to +85∞C

8-Lead SOIC

R-8

AD8021AR-REEL7

–40

∞C to +85∞C

8-Lead SOIC

R-8

AD8021ARM

–40

∞C to +85∞C

8-Lead MSOP

RM-8

HNA

AD8021ARM-REEL

–40

∞C to +85∞C

8-Lead MSOP

RM-8

HNA

AD8021ARM-REEL7

–40

∞C to +85∞C

8-Lead MSOP

RM-8

HNA

AD8021ARZ

*

–40

∞C to +85∞C

8-Lead SOIC

R-8

AD8021ARZ-REEL

*

–40

∞C to +85∞C

8-Lead SOIC

R-8

AD8021ARZ-REEL7

*

–40

∞C to +85∞C

8-Lead SOIC

R-8

*Z = Lead Free