LM4752

SNAS006E – FEBRUARY 1999 – REVISED APRIL 2013

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OPERATING RATINGS

Temperature Range TMIN ≤ TA ≤ TMAX

−40°C ≤ TA ≤ +85°C

Supply Voltage

9V to 32V

θJC

2°C/W

θJA

79°C/W

ELECTRICAL CHARACTERISTICS

The following specifications apply to each channel with VCC = 24V, TA = 25°C unless otherwise specified.

LM4752

Units

Symbol

Parameter

Conditions

(Limits)

Typical(1)

Limit(2)

Itotal

Total Quiescent Power Supply Current

VINAC = 0V, Vo = 0V, RL = ∞

10.5

20

mA(max)

7

mA(min)

Po

Output Power (Continuous

f = 1 kHz, THD+N = 10%, RL = 8Ω

7

W

Average per Channel)

f = 1 kHz, THD+N = 10%, RL = 4Ω

10

W(min)

VCC = 20V, RL = 8Ω

4

W

VCC = 20V, R L = 4Ω

7

W

f = 1 kHz, THD+N = 10%, RL = 4Ω

2.5

W

VS = 12V, DDPAK Pkg.

THD+N

Total Harmonic Distortion plus Noise

f = 1 kHz, Po = 1 W/ch, RL = 8Ω

0.08

%

VOSW

Output Swing

RL = 8Ω, V CC = 20V

15

V

RL = 4Ω, V CC = 20V

14

V

Xtalk

Channel Separation

See Figure 1

55

dB

f = 1 kHz, Vo = 4 Vrms, RL = 8Ω

PSRR

Power Supply Rejection Ratio

See Figure 1

50

dB

VCC = 22V to 26V, R L = 8Ω

VODV

Differential DC Output Offset Voltage

VINAC = 0V

0.09

0.4

V(max)

SR

Slew Rate

2

V/µs

RIN

Input Impedance

83

k

Ω

PBW

Power Bandwidth

3 dB BW at Po = 2.5W, RL = 8Ω

65

kHz

A VCL

Closed Loop Gain (Internally Set)

RL = 8Ω

34

33

dB(min)

35

dB(max)

ein

Noise

IHF-A Weighting Filter, RL = 8Ω

0.2

mVrms

Output Referred

Io

Output Short Circuit Current Limit

VIN = 0.5V, R L = 2Ω

2

A(min)

(1)

Typicals are measured at 25°C and represent the parametric norm.

(2)

Limits ensure that all parts tested in production meet the stated values.

4

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