If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Supply Voltage

4.75V

Storage Temperature

−65°C to +150°C

Input Voltage

-0.3V to V

Power Dissipation (Note 3)

Internally Limited

ESD Susceptibility (Note 4)

2000V

ESD Susceptibility (Note 5)

200V

Junction Temperature

150°C

Thermal Resistance

 θ

86°C/W (typ)

Operating Ratings

Temperature Range

T

−40°C

Supply Voltage (V

1.6V

Electrical Characteristics V

The following specifications apply for V

cuit” (see Figure 1) unless otherwise specified. Limits apply to T

Symbol

Parameter

Conditions

LM48820

Units

(Limits)

Typical

(Note 6)

Limit

(Notes 7, 8)

I

DD

Quiescent Power Supply Current

Full Power Mode

V

both channels enabled

4.7

5.5

mA (max)

V

one channel enabled

3

mA (max)

I

SD

Shutdown Current

SD_LC = SD_RC = GND

0.05

2

µA (max)

V

OS

Output Offset Voltage

R

1

5

mV (max)

A

V

Voltage Gain

–1.5

V/V

ΔA

V

Gain Match

1

%

R

IN

Input Resistance

20

15

25

k

Ω (min)

k

Ω (max)

P

O

Output Power

THD+N = 1% (max); f = 1kHz,

one channel

95

mW

THD+N = 1% (max); f = 1kHz,

R

80

mW

THD+N = 1% (max); f = 1kHz,

two channels in phase

50

40

mW (min)

THD+N = 1% (max); f = 1kHz,

R

55

45

mW (min)

THD+N

Total Harmonic Distortion + Noise

P

single channel

0.01

%

P

single channel

0.007

%

PSRR

Power Supply Rejection Ratio

Full Power Mode

V

f = 217Hz

f = 1kHz

f = 20kHz

80

75

58

dB

dB

dB

SNR

Signal-to-Noise Ratio

R

(A-weighted)

f = 1kHz, BW = 20Hz to 22kHz

100

dB

V

IH

Shutdown Input Voltage High

V

1.2

V (min)

V

IL

Shutdown Input Voltage Low

V

0.45

V (max)

X

TALK

Crosstalk

P

70

dB

Z

OUT

Output Impedance

SD_LC = SD_RC = GND

Input Terminated

Input not terminated

30

30

 

25

k

Ω (min)

5

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