2)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Supply Voltage |V

94V

Supply Voltage |V

Signal)

84V

Common Mode Input Voltage

(V

|V

≤ 80V

Differential Input Voltage

60V

Output Current

Internally Limited

Power Dissipation (Note 3)

125W

ESD Susceptibility (Note 4)

2500V

Junction Temperature (Note 5)

150˚C

Soldering Information

T package (10 seconds)

260˚C

Storage Temperature

−40˚C to +150˚C

Thermal Resistance

θ

JC

1˚C/W

θ

JA

43˚C/W

Temperature Range

T

MIN

≤ T

A

≤ T

MAX

−20˚C

≤ T

A

≤

+85˚C

Supply Voltage |V

20V to 84V

Note: Operation is guaranteed up to 84V, however, distortion may be intro-

duced from the SPiKe Protection Circuitry when operating above 70V if

proper thermal considerations are not taken into account. Refer to the

Thermal Considerations section for more information. (See SPiKe Protection

Response)

The following specifications apply for V

Ω unless otherwise specified. Limits apply for T

25˚C.

Symbol

Parameter

Conditions

LM3875

Units

(Limits)

Typical

(Note 6)

Limit

(Note 7)

|V

Power Supply Voltage

20

84

V (Min)

V (Max)

**P

O

Output Power (Continuous Average)

THD+N= 0.1% (Max)

f=1kHz,f=20kHz

56

40

W (Min)

Peak P

O

Instantaneous Peak Output Power

100

W

THD + N

Total Harmonic Distortion Plus Noise

40W, 20 Hz

≤ f ≤ 20 kHz

A

0.06

%

**SR

Slew Rate (Note 9)

V

Square-wave, R

Ω

11

5

V/µs

(Min)

*I+

Total Quiescent Power Supply

Current

V

30

70

mA (Max)

*V

OS

Input Offset Voltage

V

1

10

mV (Max)

I

B

Input Bias Current

V

0.2

1

µA (Max)

I

OS

Input Offset Current

V

0.01

0.2

µA (Max)

I

o

Output Current Limit

|V

6

4

A(Min)

*V

od

Output Dropout Voltage

|V

o

|V

1.6

2.7

5

5

V (Max)

V (Max)

*PSRR

Power Supply Rejection Ratio

V

V

V

V

120

120

85

85

dB (Min)

*CMRR

Common Mode Rejection Ratio

V

V

120

80

dB (Min)

*A

VOL

Open Loop Voltage Gain

|V

Ω, ∆V

120

90

dB (Min)

GBWP

Gain-Bandwidth Product

|V

f

82

MHz

(Min)

**e

IN

Input Noise

IHF − A Weighting Filter

R

Ω (Input Referred)

2.0

8.0

µV (Max)

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