|Category||Analog & Mixed-Signal Processing => Amplifiers => Operational Amplifiers => High Speed|
|Description||LM7121 - 175 MHZ Tiny Low Power Voltage Feedback Amplifier, Package: Soic Narrow, Pin Nb=8|
|Company||National Semiconductor Corporation|
|Datasheet||Download HA2841IP datasheet
The 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) ± 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, = +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) 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, 100): 235 MHz n Slew rate: 1300V/µs n Supply Voltages 5V n Characterized for: 15V n Low supply current: 5.3 mAApplications
Scanners, color fax, digital copiers PC video cards Cable drivers Digital cameras ADC/DAC buffers Set-top boxes
Package 5-Pin SOT23-5 Ordering Information LM7121IM5 LM7121IM5X NSC Drawing Number M08A MA05A Package Marking LM7121IM A03A Rails 2.5k Tape and Reel 1k Tape and Reel 3k Tape and Reel Supplied As
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. ESD Tolerance (Note 2) Differential Input Voltage (Note 7) Voltage at Input/Output Pin Supply Voltage (V+V-) Output Short Circuit to Ground (Note 3) Lead Temperature (soldering, 10 sec) (V-)+1.4V 36V Continuous 260°CStorage Temperature Range Junction Temperature (Note 4)
Supply Voltage: SO-8 SOT23-5 Junction Temperature Range Thermal Resistance (JA) M Package, 8-pin Surface Mount SOT23-5 Package 165°C/W 325°C/W
Unless otherwise specified, all limits guaranteed for = -15V, VCM = 0V and 1 M. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions Typ (Note 5) LM7121I Limit (Note 6) VOS IB IOS RIN CIN CMRR +PSRR -PSRR VCM Input Offset Voltage Input Bias Current Input Offset Current Input Resistance Input Capacitance Common Mode Rejection Ratio Positive Power Supply Rejection Ratio Negative Power Supply Rejection Ratio Input Common-Mode Voltage Range AV VO Large Signal Voltage Gain Output Swing -13.4 RL ISC Output Short Circuit Current Sinking 52 Sourcing = 20 VPP CMRR 15V 86 Common Mode Differential Mode Common Mode -10V VCM 10V mV max µA max µA max pF dB min dB min dB min V min V max dB min V min V max V min V max mA min mA min Units
Unless otherwise specified, all limits guaranteed for = -15V, VCM = 0V and 1 M. Boldface limits apply at the temperature extremes. Conditions Typ (Note 5) LM7121I Limit (Note 6) IS Supply Current 7.5 mA max Units
Unless otherwise specified, all limits guaranteed for = -15V, VCM = 0V and 1 M. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions Typ (Note 5) LM7121I Limit (Note 6) SR GBW f (-3 dB) ts tr, D en Slew Rate (Note 8) Unity Gain-Bandwidth Phase Margin Bandwidth (Notes 9, 10) Settling Time Rise and Fall Time (Note 10) Differential Gain Differential Phase Input-Referred Voltage Noise in T.H.D. Input-Referred Current Noise Total Harmonic Distortion 2 VPP Output, = 1 MHz 2 VPP Output, = 5 MHz = 10 kHz +2 10 VPP Step, = 0.4 VPP = 10 kHz = 20 VPP ns % Deg V/µs MHz Deg MHz Units
Unless otherwise specified, all limits guaranteed for = -5V, VCM = 0V and 1 M. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions Typ (Note 5) LM7121I Limit (Note 6) VOS IB IOS RIN Input Offset Voltage Input Bias Current Input Offset Current Input Resistance Common Mode Differential Mode mV max µA max µA max M Units
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