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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：2 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 INA296A5IDDFR is a bidirectional current sense amplifier from Texas Instruments, featuring a fixed gain of 200 V/V. It operates with a common-mode voltage range of -5V to 110V and supports a supply voltage between 2.7V and 20V. The device offers a small signal bandwidth of 1.1MHz, a slew rate of 8V/µs, and a typical CMRR of 166dB. Key electrical characteristics include a maximum offset voltage of ±8µV, a maximum gain error of ±0.015%, and a quiescent current of 2.5mA. It is housed in an 8-pin SOT-23 (DDF) package.
Feature Summary
- Ultra-precise bidirectional measurement capability over a wide common-mode voltage range independent of the supply voltage
- High-speed response with 1.1MHz bandwidth and fast settling time suitable for transient detection and overcurrent protection
- Low input bias current that remains constant across the entire common-mode voltage range
- Configurable output reference via dedicated pins to support unidirectional or bidirectional operation modes
Applications
- 48V DC/DC Converter
- 48V battery management systems (BMS)
- Macro remote radio unit (RRU)
- 48V rack server power supplies
Procurement Notes
Verify the specific suffix IDDFR corresponds to the SOT-23-8 package configuration. Confirm the A5 designation indicates the 200V/V gain variant. Ensure environmental compliance requirements match the datasheet specifications. Check for any specific handling precautions related to electrostatic discharge sensitivity during assembly.
Selection Notes
Select this component when high precision is required for bidirectional current sensing in high-voltage environments. The 200V/V gain is optimal for detecting very small differential voltages across low-value shunt resistors. Consider the 1.1MHz bandwidth for applications requiring rapid fault detection. Ensure the system supply voltage falls within the 2.7V to 20V operating range.
Part Context
This part belongs to the INA296x family of ultra-precise current sense amplifiers. The 'A' suffix denotes Version A accuracy with tighter tolerance specifications compared to Version B. The '5' indicates the 200V/V gain option. The 'IDDFR' suffix specifies the SOIC/VSSOP/SOT-23 package type and reel packaging. This series is designed for industrial and automotive applications requiring high-side, inline, or low-side sensing.
Replacement Considerations
INA296A5IDGKR: Same gain and accuracy but in VSSOP-8 package. INA296A5D: Same gain and accuracy but in SOIC-8 package. INA296B5IDDFR: Lower accuracy version (Version B) in the same SOT-23-8 package.
