uA748C, uA748M

GENERAL-PURPOSE OPERATIONAL AMPLIFIERS

SLOS095 – D921, DECEMBER 1970 – REVISED OCTOBER 1990

POST OFFICE BOX 655303

2

schematic

IN –

IN +

N2

N1/COMP

VCC +

OUT

VCC –

34

Ω

34

Ω

COMP

1 k

Ω

50 k

Ω

1 k

Ω

Resistor values shown are nominal.

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

uA748C

uA748M

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 (either input, see Notes 1 and 3)

±15

±15

V

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

– 0.5 to 2

– 0.5

V

Duration of output short circuit (see Note 4)

unlimited

unlimited

Continuous total power 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

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

JG or U package

300

°C

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

D or P 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 15V, whichever is less.

4. The output may be shorted to ground or either power supply. For the uA748M only, the unlimited duration of the short circuit applies

at (or below) 125

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

500 mW

5.8 mW/

°C

64

°C

464 mW

N/A

JG

500 mW

8.4 mW/

°C90°C

500 mW

210 mW

P

500 mW

N/A

N/A

500 mW

N/A

U

500 mW

5.4 mW/

°C

57

°C

432 mW

135 mW