OPA2202IDGKT 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 | IC OPAMP GP 2 CIRCUIT 8VSSOP | IC CURR SENSE 1 CIRCUIT SOT563 |
| Package | Tape & Reel (TR) | Tape & Reel (TR) |
| Series | - | - |
| Operating Temperature | -40°C ~ 105°C (TA) | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-TSSOP, 8-MSOP (0.118\", 3.00mm Width) | SOT-563, SOT-666 |
| Supplier Device Package | 8-VSSOP | SOT-563 |
| Current - Supply | 580µA (x2 Channels) | 200µA |
| Output Type | - | Rail-to-Rail |
| Number of Circuits | 2 | 1 |
| Voltage - Supply, Single/Dual (±) | 4.5V ~ 36V, ±2.25V ~ 18V | 2.7V ~ 5.5V |
| Current - Output / Channel | 35 mA | - |
| -3db Bandwidth | - | - |
| Amplifier Type | General Purpose | Current Sense |
| Current - Input Bias | 250 pA | 75 µA |
| Voltage - Input Offset | 20 µV | 25 µV |
| Slew Rate | 0.35V/µs | 2V/µs |
| Gain Bandwidth Product | 1 MHz | 150 kHz |
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1. What is an instrumentation amplifier and what is it mainly used for?
An instrumentation amplifier is a high-precision amplifier designed to amplify low-level differential signals with high input impedance and high common mode rejection ratio (CMRR), and is commonly used in scenarios such as medical equipment, sensor signal processing, and industrial measurements.
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2. How to choose the right operational amplifier?
Parameters such as input offset voltage, input bias current, gain bandwidth product, slew rate, noise characteristics, supply voltage, and power consumption should be considered when selecting an operational amplifier to meet the needs of a particular application.
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3. How are operational amplifiers used in filter circuits?
Operational amplifiers can be used to build a variety of active filter circuits, including low-pass, high-pass, band-pass, and band-reject filters, which are commonly used for noise removal and signal conditioning in signal processing.
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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.
