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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：5 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：900 kHz
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Overview
The INA293A4IDBVT is a unidirectional current sense amplifier from Texas Instruments, housed in a SOT-23-5 package. It features a fixed gain of 200 V/V and supports a common-mode voltage range of -4 V to 110 V. Key electrical parameters include a 900 kHz bandwidth, 160 dB CMRR, 5 uV input offset voltage, and 20 uA input bias current. Operating supply voltage ranges from 2.7 V to 20 V with a typical quiescent current of 1.5 mA. The device operates within a temperature range of -40°C to +125°C.
Feature Summary
- Ultra-precise performance with low input offset voltage and high common-mode rejection ratio for accurate measurement
- Wide common-mode voltage range supporting high-side sensing in systems up to 110 V
- High bandwidth capability suitable for fast transient detection and dynamic load monitoring
Applications
- Industrial motor control current monitoring
- Power supply overcurrent protection circuits
- Battery management system current sensing
Procurement Notes
Verify the specific suffix IDBVT indicates tape-and-reel packaging when ordering. Confirm the A4 variant corresponds to the 200 V/V gain setting required by the design. Ensure the operating environment stays within the specified -40°C to +125°C temperature limits. Check for RoHS compliance status if environmental regulations apply to the final assembly.
Selection Notes
Select this component when high accuracy is required in high-voltage common-mode environments. The fixed 200 V/V gain eliminates external resistor matching issues. Consider the SOT-23-5 package size constraints against thermal dissipation needs. Compare bandwidth requirements against the 900 kHz specification to ensure adequate response time for the application.
Part Context
This part belongs to the INA293 family of ultra-precise current sense amplifiers designed for high-side measurements. It offers improved accuracy over previous generations with reduced offset voltage and higher CMRR. The device integrates precision resistors internally to maintain gain accuracy without external components.
