uA747C, uA747M

DUAL GENERAL-PURPOSE OPERATIONAL AMPLIFIERS

SLOS009A – D971, FEBRUARY 1971 – REVISED OCTOBER 1990

POST OFFICE BOX 655303

2

schematic (each amplifier)

VCC +

OUT

VCC –

IN –

IN +

OFFSET N2

OFFSET N1

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

uA747C

uA747M

UNIT

Supply voltage, VCC + (see Note 1)

18

22

V

Supply voltage, VCC – (see Note 1)

–18

–22

V

Differential input voltage (see Note 2)

±30

±30

V

Input voltage any input (see Notes 1 and 3)

±15

±15

V

Voltage between any offset null terminal (N1/N2) and VCC –

±0.5

±0.5

V

Duration of output short circuit (see Note 4)

unlimited

unlimited

Continuous total dissipation

See Dissipation Rating Table

Operating free-air temperature range

0 to 70

– 55 to 125

°C

Storage temperature range

– 65 to 150

– 65 to 150

°C

Case temperature for 60 seconds

FK package

260

°C

Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds

J or W package

300

°C

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds

D or N package

260

°C

NOTES: 1. All voltage values, unless otherwise noted, are with respect to the midpoint between VCC + and VCC –.

2. Differential voltages are at the noninverting input terminal with respect to the inverting input terminal.

3. The magnitude of the input voltage must never exceed the magnitude of the supply voltage or 15 V, whichever is less.

4. The output may be shorted to ground or either power supply. For the uA747M only, the unlimited duration of the short circuit applies

at (or below) 125

°C case temperature or 75°C free-air temperature.

DISSIPATION RATING TABLE

PACKAGE

TA ≤ 25°C

POWER RATING

DERATING

FACTOR

DERATE

ABOVE TA

TA = 70°C

POWER RATING

TA = 125°C

POWER RATING

D

800 mW

7.6 mW/

°C

45

°C

608 mW

—

FK

800 mW

11.0 mW/

°C77°C

800 mW

275 mW

J

800 mW

11.0 mW/

°C77°C

800 mW

275 mW

N

800 mW

9.2 mW/

°C63°C

736 mW

—

W

800 mW

8.0 mW/

°C

50

°C

640 mW

200 mW