OPA2202IDGKT vs INA281A4IDBVT
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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 | -4 TO 100-V, 1-MHZCURRENT |
| Package | Tape & Reel (TR) | Tube |
| 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) | SC-74A, SOT-753 |
| Supplier Device Package | 8-VSSOP | SOT-23-5 |
| Current - Supply | 580µA (x2 Channels) | 1.5mA |
| Output Type | - | - |
| Number of Circuits | 2 | 1 |
| Voltage - Supply, Single/Dual (±) | 4.5V ~ 36V, ±2.25V ~ 18V | 2.7V ~ 20V |
| Current - Output / Channel | 35 mA | - |
| -3db Bandwidth | - | - |
| Amplifier Type | General Purpose | Current Sense |
| Current - Input Bias | 250 pA | 20 µA |
| Voltage - Input Offset | 20 µV | 30 µV |
| Slew Rate | 0.35V/µs | 2.5V/µs |
| Gain Bandwidth Product | 1 MHz | 900 kHz |
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1. How to choose the right instrumentation amplifier?
The input common-mode voltage range, gain-bandwidth product, noise performance, power consumption, temperature drift, and common-mode rejection ratio (CMRR) should be considered when selecting an instrumentation amplifier to ensure that it meets the accuracy requirements of a particular application.
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2. 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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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. Why do buffer amplifiers have high input impedance and low output impedance?
A high input impedance ensures that no load is applied to the preamplifier circuitry, preventing signal degradation, while a low output impedance provides a large driving capacity, ensuring that the signal can be passed on to subsequent circuits without loss.
