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Product Detailed Parameters
- Description：IC CURR SENSE 1 CIRCUIT SOT23-5
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：Current Sense
- Number of Circuits：1
- Output Type：-
- Slew Rate：2.5V/µs
- Gain Bandwidth Product：-
- Current - Input Bias：20 µA
- Voltage - Input Offset：15 µV
- Current - Supply：1.5mA
- Current - Output / Channel：-
- Voltage - Supply Span (Min)：2.7 V
- Voltage - Supply Span (Max)：20 V
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SC-74A, SOT-753
- Supplier Device Package：SOT-23-5
- -3db Bandwidth：1.3 MHz
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Overview
The INA293B2IDBVT is a unidirectional current sense amplifier from Texas Instruments, designed for high-precision applications. It operates with a common-mode voltage range of -4 V to 110 V and features a bandwidth of 1.3 MHz. The device offers a fixed gain of 50 V/V, an input offset voltage of 80 µV maximum, and a gain error of 0.02%. It functions within a supply voltage range of 2.7 V to 20 V, consuming 1.5 mA of quiescent current. The component is housed in a SOT-23-5 package and supports operation temperatures from -40°C to +125°C.
Feature Summary
- Supports high common-mode voltages up to 110 V for flexible circuit placement
- Provides ultra-precise measurement capabilities with low gain error
- Features high bandwidth for fast transient response in sensing applications
Applications
- Industrial motor control systems
- Power supply monitoring circuits
- Battery management systems
Procurement Notes
Verify the specific suffix IDBVT indicates tape-and-reel packaging when sourcing. Confirm the B2 variant corresponds to the 50 V/V gain setting and 80 µV max offset voltage specifications. Ensure compatibility with the required operating temperature range and package dimensions for the target PCB layout.
Selection Notes
Select this component for designs requiring high-side current sensing in high-voltage environments. The 50 V/V gain is suitable for detecting small voltage drops across shunt resistors. Consider the 1.3 MHz bandwidth for applications demanding rapid signal processing. Verify that the SOT-23-5 package fits the available board space constraints.
Part Context
This part belongs to the INA293 family of ultra-precise current sense amplifiers. It shares architectural similarities with other members like the INA293A4 and INA293B5 but differs in fixed gain settings. The family is characterized by zero-drift technology and high common-mode rejection ratios, distinguishing it from standard operational amplifiers used in similar roles.
Replacement Considerations
The INA293B2IDBVR serves as a reel-compatible alternative with identical electrical characteristics. For automotive applications, the AEC-Q100 qualified INA293B2QDBVRQ1 is a verified substitute. Check pinout compatibility before replacing with non-TI equivalents.
