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Product Detailed Parameters
- Description：-5-V TO 110-V, BIDIRECTIONAL, 1.
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：Current Sense
- Number of Circuits：1
- Output Type：-
- Slew Rate：8V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：35 µA
- Voltage - Input Offset：25 µV
- Current - Supply：2.5mA
- Current - Output / Channel：-
- Voltage - Supply Span (Min)：2.7 V
- Voltage - Supply Span (Max)：20 V
- Operating Temperature：-40°C ~ 125°C (TA)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SOT-23-8 Thin, TSOT-23-8
- Supplier Device Package：TSOT-23-8
- -3db Bandwidth：1.1 MHz
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Overview
The INA296B1IDDFR is a bidirectional ultra-precise current sense amplifier from Texas Instruments. It features a wide common-mode voltage range of -5V to 110V and operates on a single supply voltage between 2.7V and 20V. The device provides a fixed gain of 10V/V with a small signal bandwidth of 1.1MHz and a slew rate of 8V/µs. Key electrical specifications include a maximum offset voltage of ±150µV, a typical CMRR of 130dB, and a quiescent current of 2.5mA. It is housed in an 8-pin SOT-23 package.
Feature Summary
- Supports bidirectional current sensing across a wide common-mode voltage range independent of the supply voltage.
- Delivers high-speed performance with a 1.1MHz bandwidth and fast step response settling time for transient detection.
- Maintains precision accuracy with low input offset voltage and minimal drift over the operating temperature range.
Applications
- 48V DC/DC Converter
- 48V battery management systems (BMS)
- Test & Measurement
- Macro remote radio unit (RRU)
- 48V rack server
Procurement Notes
Verify the specific suffix IDDFR corresponds to the SOT-23-8 package variant. Confirm the B version designation aligns with the required offset and gain error tolerances for your design. Ensure the ordering code matches the exact reel or cut tape quantity requirements for your manufacturing process.
Selection Notes
Select this component when high-side, inline, or low-side sensing is required within a -5V to 110V common-mode window. The 10V/V gain is suitable for applications requiring moderate amplification of shunt voltages. Consider the B version specifications if the A version precision levels are not strictly necessary for cost optimization.
Part Context
This device belongs to the INA296x family of ultra-precise current sense amplifiers. It shares architectural similarities with other high-voltage sensors but is distinguished by its specific 10V/V gain configuration and B-grade accuracy parameters. It complements the broader portfolio designed for robust industrial and automotive power monitoring.
Replacement Considerations
INA296A1IDDFR offers higher precision with lower offset voltage and drift. Other gain variants such as INA296B2IDDFR provide different amplification factors while maintaining similar speed and common-mode characteristics.
