MAX4175BKEUK vs LMP7717MA
| Part Number |
|
|
| Category | Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps | Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps |
| Manufacturer | Maxim Integrated | National Semiconductor |
| Description | GAINAMP/OPEN-LOOP OP AMP | IC CMOS 1 CIRCUIT 8SOIC |
| Package | Bulk | Bulk |
| Series | - | LMP® |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | SC-74A, SOT-753 | 8-SOIC (0.154\", 3.90mm Width) |
| Supplier Device Package | SOT-23-5 | 8-SOIC |
| Current - Supply | 355µA | 1.15mA |
| Output Type | Rail-to-Rail | Rail-to-Rail |
| Number of Circuits | 1 | 1 |
| Voltage - Supply, Single/Dual (±) | 2.5V ~ 5.5V, ±1.25V ~ 2.75V | 1.8V ~ 5.5V |
| Current - Output / Channel | 65 mA | 60 mA |
| -3db Bandwidth | 330 kHz | - |
| Amplifier Type | General Purpose | CMOS |
| Current - Input Bias | 50 pA | 0.1 pA |
| Voltage - Input Offset | 500 µV | 10 µV |
| Slew Rate | 0.7V/µs | 35V/µs |
| Gain Bandwidth Product | 2 MHz | 88 MHz |
-
1. How is the noise performance of instrumentation amplifiers optimized?
Select low-noise amplifiers in your design and use shielding, filters, and precise power management to minimize external noise. High-quality resistors should be used wherever possible and PCB layout should be optimized to reduce noise coupling.
-
2. What is a rail-to-rail operational amplifier and what are its advantages?
Rail-to-rail op amps are capable of extending the output voltage range to the limit of the supply voltage (i.e., the “rail”), allowing them to handle large dynamic range signals even at low supply voltages, making them particularly suitable for low-voltage power supply systems and portable devices.
-
3. What is Slew Rate and how does it affect op amp performance?
Slew rate is the maximum rate of change of an operational amplifier's output voltage over time. Higher slew rates are good for fast-changing signals and can handle higher frequency inputs, while lower slew rates can cause signal distortion.
-
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.
