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INA281B3QDBVRQ1, Current Sense Amplifiers AEC-Q100, -4-V to 110-V, 1.3-MHz current sense amplifier 5-SOT-23 -40 to 125
Semiconductors\Integrated Circuits - ICs\Amplifier ICs\Current Sense AmplifiersINA281/INA281-Q1 Current Sense Amplifier Texas Instruments INA281/INA281-Q1 Current Sense Amplifier can measure voltage drops across shunt resistors over a wide common-mode range from –4V to 110V. The negative common-mode voltage allows the device to operate below ground, thus accommodating precise measurement of recirculating currents in half-bridge applications. Combining a low offset voltage, small gain error, and high DC CMRR enables highly accurate current measurement. The Texas Instruments INA281/INA281-Q1 is not only designed for DC current measurement but also high-speed applications (like fast over current protection, for example) with a high bandwidth of 1.3MHz and a 65dB AC CMRR (at 50kHz).
| Amplifier Type | High Precision Current Sense Amplifier |
| Brand | Texas Instruments |
| CMRR - Common Mode Rejection Ratio | 140 dB |
| Development Kit | INA281EVM |
| en - Input Voltage Noise Density | 50 nV/sqrt Hz |
| Factory Pack Quantity | 3000 |
| Gain Error | 0.07% |
| Gain V/V | 100 V/V |
| GBP - Gain Bandwidth Product | 1 MHz |
| Ib - Input Bias Current | 20 uA |
| Manufacturer | Texas Instruments |
| Maximum Operating Temperature | +125 C |
| Minimum Operating Temperature | -40 C |
| Mounting Style | SMD/SMT |
| Number of Channels | 1 Channel |
| Operating Supply Current | 1.5 mA |
| Output Type | Analog |
| Package / Case | SOT-3-5 |
| Pd - Power Dissipation | 500 mW |
| Product Category | Current Sense Amplifiers |
| Product Type | Current Sense Amplifiers |
| Product | Current Sense Amplifiers |
| Qualification | AEC-Q100 |
| Settling Time | 10 us |
| Shutdown | No Shutdown |
| SR - Slew Rate | 2.5 V/us |
| Subcategory | Amplifier ICs |
| Supply Voltage - Max | 20 V |
| Supply Voltage - Min | 2.7 V |
| Vcm - Common Mode Voltage | 48 V |
| Vos - Input Offset Voltage | 30 uV |
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