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Product Detailed Parameters
- Description：IC CURR SENSE 1 CIRCUIT SC70-6
- Series：Zero-Drift
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Amplifier Type：Current Sense
- Number of Circuits：1
- Output Type：Single-Ended
- Slew Rate：0.4V/µs
- Gain Bandwidth Product：7 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：Automotive
- Qualification：AEC-Q100
- Mounting Type：Surface Mount
- Package / Case：6-TSSOP, SC-88, SOT-363
- Supplier Device Package：SC-70-6
- -3db Bandwidth：-
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Overview
The INA211CQDCKRQ1 is a bidirectional, zero-drift current shunt monitor from Texas Instruments, qualified to AEC-Q100 standards for automotive applications. It features a fixed gain of 50 V/V and operates on a single supply voltage ranging from 2.7V to 5.5V. The device provides an analog voltage output proportional to the differential voltage across a shunt resistor, enabling precise current sensing in high-side or low-side configurations.
Feature Summary
- Zero-drift architecture ensures low offset voltage for accurate measurement of small differential signals.
- Bidirectional operation allows detection of both positive and negative current flow relative to ground.
- High common-mode voltage tolerance supports monitoring in systems with elevated bus voltages.
Applications
- Automotive battery management systems
- Motor control current sensing
- Power distribution unit monitoring
Procurement Notes
Verify the specific suffix 'C' indicates the specified gain accuracy grade. Confirm the 'Q1' suffix denotes AEC-Q100 qualification. Ensure the 'DCK' package matches the required SC-70-6 footprint. Check the 'RQ1' designation for reel quantity and tape specifications before ordering.
Selection Notes
Select this component when a fixed gain of 50 V/V is required for bidirectional current monitoring. It is suitable for applications needing high precision at low signal levels due to its zero-drift design. Consider the SC-70-6 package size constraints and the 2.7V to 5.5V supply range compatibility with the system power rails.
Part Context
This part belongs to the INA21x family of current shunt monitors. It shares the zero-drift technology and automotive qualification with siblings like the INA210 and INA213 but differs in fixed gain settings. The family is designed for compact, high-accuracy current sensing in space-constrained automotive environments.
Replacement Considerations
Direct substitutes within the same family include the INA210BQDCKRQ1 (Gain 20) and INA213BQDCKRQ1 (Gain 200). Verify that the alternative gain factor meets the system's full-scale input requirements. Ensure the replacement maintains the same SC-70-6 package and AEC-Q100 reliability standards.
