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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：30 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 INA293B1IDBVT is a unidirectional current sense amplifier from Texas Instruments, housed in a SOT-23-5 package. It supports a common-mode voltage range of -4 V to 110 V and operates with supply voltages between 2.7 V and 20 V. The device features a fixed gain of 20 V/V, a bandwidth of 1.3 MHz, and a maximum input offset voltage of 80 µV. It draws 1.5 mA of quiescent current and functions within a temperature range of -40°C to +125°C.
Feature Summary
- Provides high-precision current sensing with ultra-low offset voltage for accurate measurements.
- Supports high common-mode voltages up to 110 V for flexible system integration.
- Features a wide bandwidth of 1.3 MHz for fast transient response.
- Delivers high common-mode rejection ratio to minimize noise interference.
Applications
- Industrial motor control systems
- Power supply monitoring circuits
- Battery management systems
Procurement Notes
Verify the specific suffix IDBVT indicates the tape-and-reel packaging variant when ordering. Confirm that the B1 grade meets the required offset voltage specifications for your application. Ensure compatibility with the target PCB footprint for the SOT-23-5 package. Check for any automotive qualification requirements if deploying in vehicle environments.
Selection Notes
Select this component when high-side current sensing is required in high-voltage environments. The fixed 20 V/V gain simplifies design by eliminating external resistors. Consider the 1.3 MHz bandwidth for applications requiring rapid signal processing. Evaluate the thermal performance within the SOT-23-5 package for power dissipation limits.
Part Context
This part belongs to the INA293 family of ultra-precise current sense amplifiers designed for high-voltage applications. It offers improved accuracy over previous generations with reduced offset voltage. The device integrates a zero-drift architecture to maintain precision across temperature variations. It serves as a robust solution for demanding industrial and automotive sensing tasks.
Replacement Considerations
INA293A1IDBVT: Offers lower offset voltage but may have different availability. INA293B1QDBVRQ1: Automotive qualified version with similar electrical characteristics. Verify pinout and gain settings match before substitution.
