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AD648

Dual Precision, Low Power BiFET Op Amp

Analog Devices 

AD648

NOTES

1Input Offset Voltage specifications are guaranteed after 5 minutes of operation at T A = +25°C.

2Bias Current specifications are guaranteed maximum at either input after 5 minutes of operation at T A = +25°C. For higher temperature, the current doubles

every 10°C.

3Matching is defined as the difference between parameters of the two amplifiers.

4Defined as voltages between inputs, such that neither exceeds ± 10 V from ground.

Specifications subject to change without notice.

ABSOLUTE MAXIMUM RATINGS1

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

Internal Power Dissipation2 . . . . . . . . . . . . . . . . . . . . 500 mW

Input Voltage3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 18 V

Output Short Circuit Duration . . . . . . . . . . . . . . . . . Indefinite

Differential Input Voltage . . . . . . . . . . . . . . . . . . +VS and –VS

Storage Temperature Range (Q, H) . . . . . . . . –65°C to +150°C

Storage Temperature Range (N, R) . . . . . . . . –65°C to +125°C

Operating Temperature Range

AD648J/K . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C

AD648A/B/C . . . . . . . . . . . . . . . . . . . . . . . . –40°C to +85°C

AD648S/T . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to +125°C

Lead Temperature Range (Soldering 60 sec) . . . . . . . . +300°C

NOTES

1Stresses above those listed under “Absolute Maximum Ratings” may cause

permanent 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.

2Thermal Characteristics:

8-Pin Plastic Package: θJA = 165°C/Watt

8-Pin Cerdip Package: θJC = 22°C/Watt; θJA = 110°C/Watt

8-Pin Metal Package: θJC = 65°C/Watt; θJA = 150°C/Watt

8-Pin SOIC Package: θJC = 42°C/Wat; θJA = 160°C/Watt

3For supply voltages less than ± 18 V, the absolute maximum input voltage is equal

to the supply voltage.

METALIZATION PHOTOGRAPH

Contact factory for latest dimensions.

Dimensions shown in inches and (mm).

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 AD648 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.

REV. C

–3–

WARNING!

ESD SENSITIVE DEVICE

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