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Product Detailed Parameters
- Description：IC CURR SENSE 1 CIRCUIT 10UQFN
- Series：Zero-Drift
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：Current Sense
- Number of Circuits：1
- Output Type：Single-Ended
- Slew Rate：0.4V/µs
- Gain Bandwidth Product：14 kHz
- Current - Input Bias：28 µA
- Voltage - Input Offset：0.55 µV
- Current - Supply：65µA
- Current - Output / Channel：-
- Voltage - Supply Span (Min)：2.7 V
- Voltage - Supply Span (Max)：26 V
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：10-UFQFN
- Supplier Device Package：10-UQFN (1.8x1.4)
- -3db Bandwidth：-
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Overview
The INA211BIRSWT is a bidirectional, zero-drift current-shunt monitor manufactured by Texas Instruments. It operates within a supply voltage range of 2.7 V to 26 V and supports low-side or high-side measurements. Key electrical parameters include a gain bandwidth product of 14 kHz, an input bias current of 28 µA, and an input offset voltage of 0.55 µV. The device features a fixed gain of 50 V/V and offers a common-mode rejection ratio (CMRR) of 105 dB. It functions reliably across an operating temperature range from -40°C to +125°C.
Feature Summary
- Bidirectional measurement capability for accurate current monitoring in both directions
- Zero-drift architecture ensures high precision with minimal offset drift over time and temperature
- Supports both low-side and high-side shunt resistor configurations
- Voltage output interface simplifies integration with analog-to-digital converters
Applications
- Battery management systems requiring precise current monitoring
- Industrial process control loops needing high-accuracy current sensing
- Power supply monitoring and protection circuits
- Automotive electronics applications involving current regulation
Procurement Notes
Verify the specific suffix 'B' indicates the accuracy grade when ordering. Confirm the package type UQFN-10 matches your PCB footprint requirements. Check the latest datasheet revision for any updates to electrical characteristics or recommended operating conditions before finalizing procurement specifications.
Selection Notes
Select this component when bidirectional current sensing with high precision is required. The zero-drift technology minimizes calibration needs compared to standard amplifiers. Ensure the system voltage does not exceed the 26 V maximum rating. Consider the 50 V/V fixed gain for appropriate signal scaling relative to your ADC input range.
Part Context
This part belongs to the INA21x series of current-shunt monitors from Texas Instruments. These devices are designed for high-precision applications where stability and accuracy are critical. The series includes variants with different gains and accuracy grades to suit various system requirements.
Replacement Considerations
Direct substitutes within the same family include INA210BIRSWT, INA212BIRSWT, and INA213BIRSWT. Verify that the alternative part number has the same gain and accuracy grade to ensure circuit compatibility without redesign.
