LMP7717MA vs MAX448ACSD
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| Category | Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps | Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps |
| Manufacturer | National Semiconductor | Maxim Integrated |
| Description | IC CMOS 1 CIRCUIT 8SOIC | QUAD OPERATIONAL AMPLIFIER |
| Package | Bulk | Bulk |
| Series | LMP® | - |
| Operating Temperature | -40°C ~ 125°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-SOIC (0.154\", 3.90mm Width) | 14-SOIC (0.154\", 3.90mm Width) |
| Supplier Device Package | 8-SOIC | 14-SOIC |
| Current - Supply | 1.15mA | 30mA (x4 Channels) |
| Output Type | Rail-to-Rail | - |
| Number of Circuits | 1 | 4 |
| Voltage - Supply, Single/Dual (±) | 1.8V ~ 5.5V | 6V |
| Current - Output / Channel | 60 mA | - |
| -3db Bandwidth | - | - |
| Amplifier Type | CMOS | General Purpose |
| Current - Input Bias | 0.1 pA | 650 nA |
| Voltage - Input Offset | 10 µV | 3 mV |
| Slew Rate | 35V/µs | 90V/µs |
| Gain Bandwidth Product | 88 MHz | 100 MHz |
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1. What is the difference between an instrumentation amplifier and an operational amplifier?
Instrumentation amplifiers integrate multi-stage operational amplifiers for precise amplification of differential signals, while operational amplifiers are more versatile and can perform a wide range of analog signal processing tasks. Instrumentation amplifiers have higher input impedance and better common mode rejection.
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2. How to achieve high accuracy and low drift in instrumentation amplifiers?
Select an amplifier with low bias current, low offset voltage, and low noise, and reduce the effect of temperature drift on accuracy through a stable power supply and proper temperature compensation circuit design.
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3. What are the main application scenarios of Op Amps?
Operational amplifiers are widely used in signal conditioning, voltage follower, filter, comparator, integrator, differentiator, precision level shifter and other circuits, which are widely used in consumer electronics, industrial automation, and instrumentation.
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4. What is a Buffer Amp and what is its function?
A Buffer Amp is an amplifier with a unit gain that is mainly used in voltage follower circuits to provide a high input impedance and a low output impedance to isolate the signal source from the load and prevent signal distortion or attenuation.
