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Product Detailed Parameters
- Description：AEC-Q100, -5-V TO 110-V, BIDIREC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：Current Sense
- Number of Circuits：1
- Output Type：Single-Ended
- Slew Rate：8V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：35 µA
- Voltage - Input Offset：5 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：Automotive
- Qualification：AEC-Q100
- 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 INA296A1QDDFRQ1 is an AEC-Q100 qualified, bidirectional current sense amplifier with a gain of 10V/V. It operates over a common-mode voltage range of -5V to 110V and supports supply voltages from 2.7V to 20V. The device features a small-signal bandwidth of 1.1MHz, a slew rate of 8V/µs, and a step response settling time of 1µs to 1%. Key electrical characteristics include a maximum gain error of ±0.01%, an input offset voltage of ±5µV, and a typical CMRR of 166dB. It draws 2.5mA of quiescent current and is housed in an SOT-23-8 (DDF) package.
Feature Summary
- Ultra-precise bidirectional operation with high DC CMRR for accurate measurement across wide common-mode ranges
- High-speed transient detection capability supported by 1.1MHz bandwidth and fast settling times
- Low input bias current that remains constant regardless of the common-mode voltage level
- Functional safety capable design suitable for automotive applications
Applications
- DC/DC converter current monitoring
- Battery management systems (BMS)
- Fuel cell control units
- Smart junction boxes
Procurement Notes
Verify the specific suffix 'QDDFRQ1' against the manufacturer's official ordering information to confirm the exact package type, temperature grade, and tape-and-reel specifications. Ensure the component meets the required AEC-Q100 Grade 1 qualification standards for your target application environment before finalizing procurement.
Selection Notes
Select this part when a fixed gain of 10V/V is required for high-side or low-side sensing. The wide common-mode range allows operation independent of the system supply voltage. Consider the 1.1MHz bandwidth for applications requiring rapid overcurrent protection or transient detection capabilities.
Part Context
This component belongs to the INA296x-Q1 family of ultra-precise current sense amplifiers manufactured by Texas Instruments. The family includes variants with gains ranging from 10V/V to 200V/V. The 'A' designation indicates the highest precision version within the series, characterized by minimal gain error and offset voltage drift.
Replacement Considerations
Other members of the INA296A-Q1 family offer different fixed gains: INA296A2-Q1 (20V/V), INA296A3-Q1 (50V/V), INA296A4-Q1 (100V/V), and INA296A5-Q1 (200V/V). These share identical pinouts and performance characteristics except for the internal gain setting.
