Datasheet
General Description
The LM381/LM381A is a dual preamplifier for the amplification of low level signals in applications requiring optimum noise performance. Each of the two amplifiers is completely independent, with individual internal power supply decoupler-regulator, providing 120 dB supply rejection and 60 dB channel separation. Other outstanding features include high gain (112 dB), large output voltage swing (VCC - 2V) p-p, and wide power bandwidth (75 kHz, 20 Vp-p). The LM381/LM381A operates from a single supply across the wide range of 9V to 40V.
Either differential input or single ended input configurations may be selected. The amplifier is internally compensated with the provision for additional external compensation for narrow band applications. For additional information see AN-64, AN-104.
Application Notes
| Title | Size in Kbytes |
Date |
 |
| AN-104: Application Note 104 Noise Specs Confusing? |
208 Kbytes |
14-Oct-02 |
Download |
More Application Notes
| Title | Size in Kbytes |
Date |
 |
| AN-715: Application Note 715 LM385 Feedback Provides Regulator Isolation |
50 Kbytes |
3-Oct-02 |
Download |
| AN-460: Application Note 460 LM34/LM35 Precision Monolithic Temperature Sensors |
306 Kbytes |
20-Sep-02 |
Download |
AN-460 (Japanese): Application Note 460 LM34/LM35 Precision Monolithic Temperature Sensors
 |
322 Kbytes |
|
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| AN-147: AN-147 Low Cost IC Stereo Receiver |
140 Kbytes |
4-Oct-04 |
Download |
| AN-777: Application Note 777 LM2577 Three Output, Isolated Flyback Regulator |
112 Kbytes |
26-Sep-02 |
Download |
| AN-242: Application Note 242 Applying a New Precision Op Amp |
383 Kbytes |
4-Oct-04 |
Download |
| AN-263: Application Note 263 Sine Wave Generation Techniques |
350 Kbytes |
26-May-09 |
Download |
| AN-286: Application Note 286 Applications of the LM392 Comparator Op Amp IC |
135 Kbytes |
2-Oct-02 |
Download |
| AN-146: AN-146 FM Remote Speaker System |
134 Kbytes |
4-Oct-04 |
Download |
| AN-256: Application Note 256 Circuitry for Inexpensive Relative Humidity Measurement |
119 Kbytes |
2-Oct-02 |
Download |
| AN-69: LM380 Power Audio Amplifier |
213 Kbytes |
4-Nov-95 |
Download |
| AN-284: Application Note 284 Single-Supply Applications of CMOS MICRODACs |
121 Kbytes |
3-Oct-02 |
Download |
| AN-274: Application Note 274 CMOS A/D Converter Interfaces Easily with Many Microprocessors |
73 Kbytes |
3-Oct-02 |
Download |
[Information as of 5-Jul-2009]
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