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LM7121

National Semiconductor
Part Number LM7121
Manufacturer National Semiconductor
Description 235 MHz Tiny Low Power Voltage Feedback Amplifier
Published Mar 22, 2005
Detailed Description LM7121 235 MHz Tiny Low Power Voltage Feedback Amplifier August 1999 LM7121 235 MHz Tiny Low Power Voltage Feedback Am...
Datasheet PDF File LM7121 PDF File

LM7121
LM7121

Overview
LM7121 235 MHz Tiny Low Power Voltage Feedback Amplifier August 1999 LM7121 235 MHz Tiny Low Power Voltage Feedback Amplifier General Description The LM7121 is a high performance operational amplifier which addresses the increasing AC performance needs of video and imaging applications, and the size and power constraints of portable applications.
The LM7121 can operate over a wide dynamic range of supply voltages, from 5V (single supply) up to ± 15V (see the Application Information section for more details).
It offers an excellent speed-power product delivering 1300V/µs and 235 MHz Bandwidth (−3 dB, AV = +1).
Another key feature of this operational amplifier is stability while driving unlimited capacitive loads.
Due to its Tiny SOT23-5 package, the LM7121 is ideal for designs where space and weight are the critical parameters.
The benefits of the Tiny package are evident in small portable electronic devices, such as cameras, and PC video cards.
Tiny amplifiers are so small that they can be placed anywhere on a board close to the signal source or near the input to an A/D converter.
Features (Typical unless otherwise noted) VS = ± 15V n Easy to use voltage feedback topology n Stable with unlimited capacitive loads n Tiny SOT23-5 package — typical circuit layout takes half the space of SO-8 designs n Unity gain frequency: 175 MHz n Bandwidth (−3 dB, AV = +1, RL = 100Ω): 235 MHz n Slew rate: 1300V/µs n Supply Voltages SO-8: 5V to ± 15V SOT23-5: 5V to ± 5V n Characterized for: +5V, ± 5V, ± 15V n Low supply current: 5.
3 mA Applications n n n n n n Scanners, color fax, digital copiers PC video cards Cable drivers Digital cameras ADC/DAC buffers Set-top boxes Connection Diagrams 8-Pin SO-8 5-Pin SOT23 DS012348-2 DS012348-1 Top View Top View Ordering Information Package 8-Pin SO-8 5-Pin SOT23-5 Ordering Information LM7121IM LM7121IMX LM7121IM5 LM7121IM5X NSC Drawing Number M08A M08A MA05A MA05A Package Marking LM7121IM LM7121IM A03A A03A Rails 2.
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