Overview
The INA293B2IDBVR from Texas Instruments is a state-of-the-art current sense amplifier designed to offer industry-leading accuracy and precision. This device is part of the INA293 series, which are bidirectional, zero-drift, current sense amplifiers optimized for measuring small differential voltages across a shunt resistor. It is ideal for applications such as power management and overcurrent protection.
The INA293B2IDBVR features a compact SOT-23 package, making it suitable for space-constrained applications. It operates over an extended temperature range of –40°C to +125°C, ensuring high reliability and performance in industrial environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Common-mode voltage range | –4 to 110 | V |
| Survival voltage range | –20 to 120 | V |
| Supply voltage range | 2.7 to 20 | V |
| Quiescent current | 1.5 | mA |
| Input offset voltage | ±15 | µV |
| Input offset drift | ±0.05 | µV/°C |
| Gain | 50 V/V | |
| Gain error | ±0.15% | |
| Gain drift | ±10 ppm/°C | |
| Bandwidth | 1.3 MHz | |
| Slew rate | 2.5 V/µs | |
| Operating temperature range | –40 to 125 | °C |
| Package | SOT-23-5 |
Key Features
- High Precision: The INA293B2IDBVR offers high accuracy with low offset voltage and drift, making it suitable for precise current sensing applications.
- Wide Common-Mode Range: It supports common-mode voltages from –4 V to +110 V, independent of the supply voltage.
- High Bandwidth and Slew Rate: With a bandwidth of 1.3 MHz and a slew rate of 2.5 V/µs, it is capable of handling fast transient signals.
- Low Power Consumption: The device draws a typical quiescent current of 1.5 mA, making it suitable for low-power applications.
- Compact Design: The SOT-23 package is ideal for space-constrained applications.
- Long Term Reliability: It operates over an extended temperature range of –40°C to +125°C, ensuring reliability in industrial environments.
Applications
- Power Management: The INA293B2IDBVR is used in power management systems to monitor and control current flow accurately.
- Overcurrent Protection: It is employed in overcurrent protection circuits to detect and respond to excessive current conditions quickly.
- Data Acquisition Systems: The device is suitable for data acquisition systems requiring precise voltage references and current measurements.
- Precision Instrumentation: It is used in various precision instrumentation applications where high accuracy and reliability are crucial.
- Active Antenna Systems and mMIMO (AAS): The INA293B2IDBVR can be used in active antenna systems and massive MIMO applications for precise current sensing and control.
Q & A
- What is the common-mode voltage range of the INA293B2IDBVR?
The common-mode voltage range is from –4 V to +110 V.
- What is the supply voltage range for the INA293B2IDBVR?
The supply voltage range is from 2.7 V to 20 V.
- What is the typical quiescent current of the INA293B2IDBVR?
The typical quiescent current is 1.5 mA.
- What is the bandwidth of the INA293B2IDBVR?
The bandwidth is 1.3 MHz.
- What is the slew rate of the INA293B2IDBVR?
The slew rate is 2.5 V/µs.
- What is the operating temperature range of the INA293B2IDBVR?
The operating temperature range is from –40°C to +125°C.
- In what package is the INA293B2IDBVR available?
The device is available in a SOT-23-5 package.
- What are some typical applications of the INA293B2IDBVR?
Typical applications include power management, overcurrent protection, data acquisition systems, precision instrumentation, and active antenna systems.
- What is the gain of the INA293B2IDBVR?
The gain of the INA293B2IDBVR is 50 V/V.
- What is the input offset voltage of the INA293B2IDBVR?
The input offset voltage is typically ±15 µV.
