LM381 Datasheet, PDF (2/6 Pages) National Semiconductor (TI) – LM381/LM381A Low Noise Dual Preamplifier

Absolute Maximum Ratings
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Supply Voltage
a40V
Power Dissipation (Note 1)
1 56 W
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering 10 sec )
0 C to a70 C
b65 C to a150 C
260 C
Electrical Characteristics T_A e 25 C V_CC e 14V unless otherwise stated
Parameter
Conditions
Min
Typ
Max
Units
Voltage Gain
Open Loop (Differential Input) f e100 Hz
160 000
VV
Open Loop (Single Ended) f e 100 Hz
320 000
VV
Supply Current
Input Resistance
(Positive Input)
(Negative Input)
V_CC 9V to 40V R_L e %
10
mA
100
kX
200
kX
Input Current
(Negative Input)
05
mA
Output Resistance
Open Loop
150
X
Output Current
Source
8
mA
Sink
2
mA
Output Voltage Swing
Unity Gain Bandwidth
Peak-to-Peak
V_CC b 2
15
V
MHz
Power Bandwidth
Maximum Input Voltage
20 V_PP (V_CC e 24V)
Linear Operation
75
kHz
300
mVrms
Supply Rejection Ratio
f e 1 kHz
120
dB
Channel Separation
f e 1 kHz
60
dB
Total Harmonic Distortion
60 dB Gain f e 1 kHz
01
%
Total Equivalent Input
Noise
LM381A
LM381
R_S e 60X 10 – 10 000 Hz (Single Ended
Input Flat Gain Circuit A_V e 1000)
05
07
mVrms
05
10
mVrms
Note 1 For operation in ambient temperatures above 25 C the device must be derated based on a 150 C maximum junction temperature and a thermal resistance
of 80 C W junction to ambient
Connection Diagram
Dual-In-Line Package
Top View
Order Number LM381N or LM381AN
See NS Package Number N14A
2
TL H 7841 – 2