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Product Detailed Parameters
- Description：AEC-Q100 -5V TO 110V BIDIRECTI
- 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：3 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 INA296A2QDDFRQ1 is an ultra-precise, bidirectional current sense amplifier from Texas Instruments. It features a fixed gain of 20V/V and operates with a wide common-mode voltage range from -5V to 110V. The device supports a supply voltage between 2.7V and 20V. Key electrical specifications include a maximum gain error of ±0.01%, a typical CMRR of 166dB, and a small signal bandwidth of 1.1MHz at all gains. It is housed in an SOT-23-8 (DDF) package.
Feature Summary
- Ultra-precise bidirectional operation with high accuracy for DC current measurements
- Wide common-mode input range extending from -5V to 110V independent of supply voltage
- High-speed performance with 1.1MHz bandwidth and fast settling time for transient detection
- Excellent common-mode rejection ratio ensuring precision in noisy environments
Applications
- DC/DC converter current monitoring
- Battery management systems (BMS)
- Fuel cell control units
- Smart junction boxes
Procurement Notes
Verify the specific suffix 'DDFRQ1' corresponds to the SOT-23-8 thin package and tape-and-reel quantity. Confirm AEC-Q100 Grade 1 qualification requirements for your target temperature range. Ensure reference pin configurations match your unidirectional or bidirectional design needs. Check for functional safety documentation availability if required for your system architecture.
Selection Notes
Select this component when high precision and wide common-mode voltage are critical. The 20V/V gain suits applications requiring moderate output swing relative to shunt voltage. Consider the low offset voltage and drift for low-side or inline sensing where shunt drops are minimal. Evaluate thermal dissipation in the DDF package for high-current continuous operation scenarios.
Part Context
This part belongs to the INA296x-Q1 family of ultra-precise current sense amplifiers. It shares architectural similarities with other members like the INA241 and INA190 but offers higher precision and wider common-mode range. The 'A2' designation indicates the 20V/V gain variant within the series, distinct from the B-grade versions which have lower precision specifications.
Replacement Considerations
INA296A2QDGKRQ1 (VSSOP-8 package), INA296A2QDRQ1 (SOIC-8 package). Verify pinout compatibility and thermal characteristics when substituting packages.
