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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 INA296B5IDDFR 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 provides a small signal bandwidth of 1.1MHz, a slew rate of 8V/µs, and a maximum gain error of ±0.1%. It utilizes an SOT-23-8 (DDF) package and functions within an ambient temperature range of -40°C to +125°C.
Feature Summary
- Supports bidirectional current measurement across a wide common-mode voltage range independent of the supply voltage
- Delivers high-speed transient detection capabilities through a 1.1MHz bandwidth and fast settling time
- Maintains precision accuracy with low offset voltage and minimal gain drift over the full operating temperature range
Applications
- 48V DC/DC Converter
- 48V battery management systems (BMS)
- Test & Measurement
- Macro remote radio unit (RRU)
- 48V rack server power supply
Procurement Notes
Verify the specific suffix IDDFR corresponds to the SOT-23-8 package configuration. Confirm that the B5 designation matches the required 200 V/V gain for the application circuit. Ensure the component meets the necessary environmental specifications for the intended operating temperature range.
Selection Notes
Select this part when a high gain of 200 V/V is required to amplify small differential signals from low-value shunt resistors. The wide common-mode range allows placement in high-side or low-side configurations without exceeding supply limits. Consider the thermal characteristics of the SOT-23-8 package for heat dissipation requirements.
Part Context
This component belongs to the INA296x family of ultra-precise current sense amplifiers. The 'B' variant indicates a gain error specification of ±0.1%, distinguishing it from the higher precision 'A' series. The '5' suffix denotes the 200 V/V gain option, while 'DDFR' specifies the SOT-23-8 tape and reel packaging format.
Replacement Considerations
INA296B5IDGKR
FAQ
How does the output voltage relate to the reference pins?
The output voltage is determined by the gain multiplied by the input differential voltage plus the average of the voltages applied to REF1 and REF2.
What is the maximum common-mode voltage the device can withstand?
The operational common-mode voltage range extends from -5V to 110V.
