Texas Instruments
INA281B3QDBVRQ1
TI INA281B3-Q1 Automotive 110V High-Precision Current Sense Amplifier, 100 V/V Gain
The INA281B3QDBVRQ1 is a high-precision, current sense amplifier designed for automotive applications. It can measure voltage drops across shunt resistors over a wide common-mode range from -4 V to 110 V. The negative common-mode voltage capability allows it to operate below ground, making it suitable for measuring recirculating currents in half-bridge applications. It features a high bandwidth of 1.3 MHz and a high DC CMRR of 120 dB, enabling accurate measurements in both DC and high-speed applications such as fast overcurrent protection.
Temp Range-40 to 125°C
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Technical Specifications
Texas Instruments INA281B3QDBVRQ1 technical specifications.
General
| Common-mode Voltage Range (Operational) | -4 to 110V |
| Common-mode Voltage (Survival) | -20 to 120V |
| Bandwidth | 1.3MHz |
| Gain | 100V/V |
| Gain Error (Maximum) | 0.5% |
| Input Offset Voltage (Vos) | 30µV |
| DC CMRR | 120dB |
| Supply Voltage Range | 2.7 to 20V |
| Quiescent Current | 1.5mA |
| Slew Rate | 2.5V/µs |
| Operating Temperature Range | -40 to 125°C |
| Number of Channels | 1 |
Compliance
| Automotive Qualification | AEC-Q100 Grade 1 |
| RoHS | Compliant |
| Functional Safety | Functional Safety-Capable |
Datasheet
Texas Instruments INA281B3QDBVRQ1 Datasheet
Download the complete datasheet for Texas Instruments INA281B3QDBVRQ1 to view detailed technical specifications.
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