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Product Detailed Parameters
- Description：IC CURRENT SENSE 1 CIRCUIT 8SOIC
- Series：Zero-Drift
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：Current Sense
- Number of Circuits：1
- Output Type：-
- Slew Rate：2V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：90 µA
- Voltage - Input Offset：5 µV
- Current - Supply：1.8mA
- Current - Output / Channel：-
- Voltage - Supply Span (Min)：2.7 V
- Voltage - Supply Span (Max)：5.5 V
- Operating Temperature：-40°C ~ 150°C (TA)
- Grade：Automotive
- Qualification：AEC-Q100
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- -3db Bandwidth：400 kHz
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Overview
The INA240A3EDRQ1 is a bidirectional, ultra-precise current-sense amplifier from Texas Instruments, designed for automotive applications under AEC-Q100 qualification. It features a fixed gain of 100 V/V and operates with a common-mode voltage range of -4 V to 80 V. The device supports a supply voltage between 2.7 V and 5.5 V, drawing 1.8 mA of operating current. Key electrical specifications include a 400 kHz bandwidth, 132 dB CMRR, 5 µV input offset voltage, and 90 µA input bias current. It is housed in an 8-SOIC package and functions within a temperature range of -40°C to 150°C.
Feature Summary
- Bidirectional sensing capability for high-side current monitoring
- Ultra-precision architecture with zero-drift technology
- Automotive-grade reliability certified to AEC-Q100 standards
Applications
- High-side current sensing in automotive power distribution
- Battery management systems in electric vehicles
- Motor control circuits requiring precise current feedback
Procurement Notes
Verify the specific suffix 'EDRQ1' to confirm the 8-SOIC package and tape-and-reel packaging format. Ensure the component meets AEC-Q100 Grade 1 requirements for your specific automotive environment. Cross-reference the datasheet revision to confirm pinout compatibility with existing designs. Confirm RoHS compliance status before integration into regulated assemblies.
Selection Notes
Select this component when a fixed 100 V/V gain is required for bidirectional current measurement. It is suitable for systems operating with common-mode voltages up to 80 V. Consider the 8-SOIC package constraints for PCB layout. Verify that the 400 kHz bandwidth meets the dynamic response needs of the application circuit.
Part Context
This part belongs to the INA240-Q1 family of current-sense amplifiers. It shares architectural similarities with other devices in the series but differs in gain setting and package type. The 'Q1' designation indicates automotive qualification, while 'A3' specifies the 100 V/V gain variant.
Replacement Considerations
Check for direct substitutes within the INA240-Q1 family with matching gain and package. Verify functional equivalence for any alternative parts regarding common-mode voltage range and precision specifications.
