Features: (Typical unless otherwise noted) VS = ±15V
` Easy to use voltage feedback topology
`Stable with unlimited capacitive loads
` Tiny SOT23-5 package-typical circuit layout takes half
the space of SO-8 designs
`Unity gain frequency: 175 MHz
` Bandwidth (−3 dB, AV = +1, RL = 100): 235 MHz
` Slew rate: 1300V/µs
`Supply Voltages SO-8: 5V to ±15V
SOT23-5: 5V to ±5V
` Characterized for: +5V, ±5V, ±15V
` Low supply current: 5.3 mASpecificationsESD Tolerance (Note 2) .................................................................2000V
Differential Input Voltage (Note 7) ...................................................±2V
Voltage at Input/Output Pin ...................................(V+)−1.4V, (V−)+1.4V
Supply Voltage (V+V-) .....................................................................36V
Output Short Circuit to Ground
(Note 3) ..................................................................................Continuous
Lead Temperature .........................................................................260°C
(soldering, 10 sec) .........................................................................260°C
Storage Temperature Range .......................................−65°C to +150°C
Junction Temperature (Note 4) .......................................................150°C
| -3dB BW |
235 MHz |
| AvCL for -3dB BW |
1 V/V |
| Slew Rate |
1300 Volts/usec |
| Input OutputType |
Not Rail to Rail |
| Supply Min |
4.5 Volt |
| Supply Max |
33 Volt |
| Supply Current Per Channel |
4.8 mA |
| PowerWise Rating 2 |
20.4 uA/MHz |
| Channels |
1 Channels |
| Offset Voltage max, 25C |
8 mV |
| Max Input Bias Current |
12000 nA |
| Output Current |
52 mA |
| Voltage Noise |
17 nV/root(Hz) |
| Shut down |
No |
| Feedback Type |
Voltage |
| Av+1 BW |
235 MHz |
| Av+2 BW |
117.5 MHz |
| Av+5 BW |
47 MHz |
| Av+10 BW |
23.5 MHz |
| Av+20 BW |
11.75 MHz |
| Diff Gain |
0.3 dB |
| Diff Phase |
0.65 % |
| Settling Time |
65 ns |
| Tsettling Conditions |
to 0.1% |
| Function |
Op Amp |
| Gain Bandwidth |
175 MHz |
| Temperature Min |
-40 deg C |
| Temperature Max |
85 deg C |
| Automotive Selection Guide |
Yes |
| PowerWise |
Yes |
| View Using Catalog |
DescriptionThe 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.
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.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
| LM7121IM |
VIP III |
0 |
14765 |
0 |
0 |
12125000 |
3 |
344050185 |
| LM7121IM5 |
VIP III |
0 |
14765 |
0 |
0 |
12125000 |
3 |
344050185 |
| LM7121IM5X |
VIP III |
0 |
14765 |
0 |
0 |
12125000 |
3 |
344050185 |
| LM7121IMX |
VIP III |
0 |
14765 |
0 |
0 |
12125000 |
3 |
344050185 |
Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.For more information on Reliability Metrics, please click here.
Design Tools
| Title |
Size in Kbytes |
Date |
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| Amplifiers Selection Guide software for Windows |
8 Kbytes |
6-Mar-2007 |
View |
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LM7121 Data Sheet
