Datasheet
LM4941, LM4941SDBD, LM4941TMBD
SNAS347C –JUNE 2006–REVISED MAY 2013
www.ti.com
Electrical Characteristics V
DD
= 5V
(1)(2)
(continued)
The following specifications apply for V
DD
= 5V, A
V
= 1V/V, and 8Ω load unless otherwise specified. Limits apply for T
A
=
25°C.
LM4941
Units
Symbol Parameter Conditions
(Limits)
Typical
(3)
Limit
(4)(5)
f = 217Hz, V
CM
= 200mV
P-P
Sine 70 dB
CMRR Common-Mode Rejection Ratio
f = 20Hz–20kHz , V
CM
= 200mV
pp
70 dB
V
OS
Output Offset Voltage V
IN
= 0V 2 6 mV (max)
V
SDIH
Shutdown Voltage Input High 1.4 V (min)
V
SDIL
Shutdown Voltage Input Low 0.4 V (max)
SNR Signal-to-Noise Ratio P
O
= 1W, f = 1kHz 108 dB
T
WU
Wake-up Time from Shutdown C
BYPASS
= 1μF 12 ms
Electrical Characteristics V
DD
= 3V
(1)(2)
The following specifications apply for V
DD
= 3V, A
V
= 1V/V, and 8Ω load unless otherwise specified. Limits apply for T
A
=
25°C.
LM4941
Units
Symbol Parameter Conditions
(Limits)
Typical
(3)
Limit
(4)(5)
V
IN
= 0V, no load 1.6 2.2 mA (max)
I
DD
Quiescent Power Supply Current
V
IN
= 0V, R
L
= 8Ω 1.6 mA
I
SD
Shutdown Current V
SHDN
= GND 0.1 0.8 µA (max)
THD+N = 1% (max); f = 1 kHz
R
L
= 8Ω 0.43 W
P
O
Output Power
THD+N = 10% (max); f = 1 kHz
R
L
= 8Ω 0.54 W
THD+N Total Harmonic Distortion + Noise P
O
= 0.25W; f = 1kHz 0.05 %
V
RIPPLE
= 200mV
PP
Sine
PSRR Power Supply Rejection Ratio f = 217Hz
(6)
95 dB
f = 1kHz
(6)
90 dB
CMRR Common-Mode Rejection Ratio f = 217Hz, V
CM
= 200mV
PP
Sine 70 dB
V
OS
Output Offset Voltage V
IN
= 0V 2 6 mV (max)
V
SDIH
Shutdown Voltage Input High 1.4 V (min)
V
SDIL
Shutdown Voltage Input Low 0.4 V (max)
T
WU
Wake-up Time from Shutdown C
BYPASS
= 1μF 8 ms
(1) All voltages are measured with respect to the ground pin, unless otherwise specified.
(2) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical
specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the
Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication
of device performance.
(3) Typicals are measured at 25°C and represent the parametric norm.
(4) Limits are specified to TI's AOQL (Average Outgoing Quality Level).
(5) Datasheet min/max specification limits are specified by design, test, or statistical analysis.
(6) 10Ω terminated input.
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