TLE2237CDW vs INA185A3IDRLT
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| Category | Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps | Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps |
| Manufacturer | Texas Instruments | Texas Instruments |
| Description | OPERATIONAL AMPLIFIER | IC CURR SENSE 1 CIRCUIT SOT563 |
| Package | Bulk | Tape & Reel (TR) |
| Series | Excalibur™ | - |
| Operating Temperature | 0°C ~ 70°C (TA) | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 16-SOIC (0.295\", 7.50mm Width) | SOT-563, SOT-666 |
| Supplier Device Package | 16-SOIC | SOT-563 |
| Current - Supply | 7.3mA (x2 Channels) | 200µA |
| Output Type | - | Rail-to-Rail |
| Number of Circuits | 2 | 1 |
| Voltage - Supply, Single/Dual (±) | ±4V ~ 19V | 2.7V ~ 5.5V |
| Current - Output / Channel | 50 mA | - |
| -3db Bandwidth | - | - |
| Amplifier Type | General Purpose | Current Sense |
| Current - Input Bias | 15 nA | 75 µA |
| Voltage - Input Offset | 100 µV | 25 µV |
| Slew Rate | 5V/µs | 2V/µs |
| Gain Bandwidth Product | 50 MHz | 150 kHz |
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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.
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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 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.
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4. How can I reduce noise in operational amplifier circuits?
Noise can be reduced by selecting low-noise operational amplifiers, optimizing circuit layout, reducing power supply ripple, using appropriate decoupling capacitors, and adding filters where necessary.
