# INA240A1D (Component) ## Description Current Sense Amplifier 1 Circuit 8-SOIC The INA240A1D is a precision current-sense amplifier manufactured by Texas Instruments, specifically designed for high-side and low-side current measurement applications in electrically noisy environments. The device features enhanced PWM rejection capability, enabling accurate current sensing in motor control systems, switching power supplies, solenoid drivers, and other fast-switching power electronics applications. The amplifier is optimized for measuring voltage drops across shunt resistors while maintaining high common-mode voltage tolerance and excellent signal accuracy. Its bidirectional current-sensing capability allows monitoring of charging and discharging currents in battery systems and power management circuits. The INA240A1D provides fixed gain amplification and high common-mode transient immunity, making it suitable for industrial automation, automotive electronics, embedded power systems, and precision current monitoring applications. The device combines low offset voltage, low drift characteristics, and robust analog performance within a compact surface-mount package, simplifying precision current measurement implementation in modern electronic systems. Engineering Specification Device Type Current-sense amplifier Amplifier Configuration Precision bidirectional current-shunt monitor Input Characteristics High common-mode voltage sensing capability Gain Configuration Fixed-gain current measurement amplifier Measurement Topology High-side and low-side current sensing support Signal Performance High accuracy with low offset voltage and low drift PWM Rejection Enhanced PWM rejection for switching power applications Common-Mode Performance High common-mode transient immunity Output Characteristics Analog voltage output proportional to sensed current Power Consumption Low-power precision analog operation Package Type SOIC surface-mount package Mounting Style Surface mount technology Protection and Reliability Designed for robust operation in electrically noisy environments Applications Motor control systems Battery management systems Switching power supplies Industrial automation Current monitoring Solenoid control Power inverters Embedded power electronics Automotive current sensing Load measurement systems Manufacturer Texas Instruments #commonpartslibrary #currentsenseamplifier #analogfrontend #powermanagement #texasinstruments #motorcontrol #currentsensing #embeddedhardware #industrialelectronics #analogdesign #surfaceountcomponents #powerelectronics #signalconditioning #batterymanagement #precisionanalog ## Component Details - **Owner:** lcsc - **Created:** 11/1/2024 - **Last Updated:** 5/28/2026 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ - **Package or Case Code:** SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL - **Datasheet URL:** https://www.ti.com/lit/ds/symlink/ina240.pdf - **Manufacturer Part Number:** INA240A1D - **Part Type:** Integrated Circuit - **Symbol Style:** parametric-v1 - **LCSC Part Number:** C1346458 - **JLCPCB Part Class:** Extended Part - **Manufacturer Name:** Texas Instruments - **Used in:** 108 projects ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Arrow](https://www.arrow.com/en/products/ina240a1d/texas-instruments.html?utm_currency=USD&region=nac) | $3.768 | 3 | | [Digi-Key](https://www.digikey.com/en/products/detail/texas-instruments/INA240A1D/8571542) | $3.81 | 2K | | [LCSC](https://www.lcsc.com/product-detail/C1346458.html) | $1.6313 | 288 | | [Mouser](https://www.mouser.com/en/ProductDetail/Texas-Instruments/INA240A1D?qs=u4fy%2FsgLU9OqCdP7Ou6Gjw%3D%3D) | $4.23 | 14K | | [TME](https://www.tme.com/us/en-us/katalog/?queryPhrase=INA240A1D) | $2.58 | 75 | | [Verical](https://www.verical.com/pd/texas-instruments-amplifier---operational-INA240A1D-5410184?utm_currency=USD) | N/A | N/A | - **Part Type:** Integrated Circuits - **Sub-Type:** Logic - **Manufacturer:** Texas Instruments - **MPN:** INA240A1D - **Mount Type:** Surface Mount - **Package / Case Code:** 8-SOIC - **Pin Count:** 8 - **Logic Function:** AND ## Pins | Pin | Name | Type | |-----|------|------| | 1 | IN- | | | 2 | GND | | | 3 | REF2 | | | 4 | NC | | | 5 | OUT | | | 6 | VS | | | 7 | REF1 | | | 8 | IN+ | | --- *Generated from [https://www.flux.ai/lcsc/ina240a1d~275](https://www.flux.ai/lcsc/ina240a1d~275)*