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LM4895 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LM4895
Description  1 Watt Fully Differential Audio Power Amplifier With Shutdown Select and Fixed 6dB Gain
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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 3 page
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Absolute Maximum Ratings (Note 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
6.0V
Storage Temperature
−65˚C to +150˚C
Input Voltage
−0.3V to V
DD +0.3V
Power Dissipation (Note 3)
Internally Limited
ESD Susceptibility (Note 4)
2000V
ESD Susceptibility (Note 5)
200V
Junction Temperature
150˚C
Thermal Resistance
θ
JC (LD)
12˚C/W
θ
JA (LD)
63˚C/W
θ
JA (micro SMD)
220˚C/W
θ
JC (MSOP)
56˚C/W
θ
JA (MSOP)
190˚C/W
Soldering Information
See AN-1112 ’microSMD Wafers Level Chip Scale
Package’.
See AN-1187 ’Leadless
Leadframe Package (LLP)’.
Operating Ratings
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
−40˚C
≤ T
A
≤ 85˚C
Supply Voltage
2.2V
≤ V
DD
≤ 5.5V
Electrical Characteristics V
DD =5V
(Notes 1, 2, 8)
The following specifications apply for V
DD = 5V and 8
Ω load unless otherwise specified. Limits apply for T
A = 25˚C.
Symbol
Parameter
Conditions
LM4895
Units
(Limits)
Typical
Limit
(Note 6)
(Note 7)
I
DD
Quiescent Power Supply Current
V
IN = 0V, Io = 0A
4
8
mA (max)
I
SD
Shutdown Current
V
shutdown = GND
0.1
1
µA (max)
P
o
Output Power
THD = 1% (max);f=1kHz
LM4895LD, R
L =4
Ω (Note 11)
1.4
W (min)
LM4895, R
L =8
1
0.850
THD+N
Total Harmonic Distortion+Noise
P
o = 0.4 Wrms; f = 1kHz
0.1
%
PSRR
Power Supply Rejection Ratio
V
ripple = 200mV sine p-p
f = 217Hz (Note 9)
84
dB (min)
f =1kHz (Note 9)
80
f = 217Hz (Note 10)
80
60
f =1kHz (Note 10)
77
CMRR
Common-Mode Rejection Ratio
f =217Hz
50
dB
Electrical Characteristics V
DD =3V
(Notes 1, 2, 8)
The following specifications apply for V
DD = 3V and 8
Ω load unless otherwise specified. Limits apply for T
A = 25˚C.
Symbol
Parameter
Conditions
LM4895
Units
(Limits)
Typical
Limit
(Note 6)
(Note 7)
I
DD
Quiescent Power Supply Current
V
IN = 0V, Io = 0A
3.5
6
mA (max)
I
SD
Shutdown Current
V
shutdown = GND
0.1
1
µA (max)
P
o
Output Power
THD = 1% (max); f = 1kHz
0.35
W
THD+N
Total Harmonic Distortion+Noise
P
o = 0.25Wrms; f = 1kHz
0.325
%
PSRR
Power Supply Rejection Ratio
V
ripple = 200mV sine p-p
f = 217Hz (Note 9)
84
dB
f = 1kHz (Note 9)
80
f = 217Hz (Note 10)
77
f = 1kHz (Note 10)
75
CMRR
Common-Mode Rejection Ratio
f = 217Hz
49
dB
Note 1: All voltages are measured with respect to the ground pin, unless otherwise specified.
www.national.com
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