Top

Product details

Parameters

Common mode voltage (Max) (V) 80 Common mode voltage (Min) (V) -4 Input offset (+/-) (Max) (uV) 25 Input offset drift (+/-) (Typ) (uV/C) 0.05 Gain (V/V) 20 Gain error (%) 0.2 Gain error drift (+/-) (Max) (ppm/°C) 10 CMRR (Min) (dB) 120 Bandwidth (kHz) 400 Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 2.7 Iq (Max) (mA) 2.6 Number of channels (#) 1 Comparators (#) 0 Features Bi-directional, Enhanced PWM Rejection, Low-side Capable Rating Space Operating temperature range (C) -55 to 125 open-in-new Find other Current sense amplifiers analog output

Package | Pins | Size

TSSOP (PW) 8 19 mm² 3 x 6.4 open-in-new Find other Current sense amplifiers analog output

Features

  • VID V62/18615
  • Radiation Hardened
    • Single Event Latch-up (SEL) Immune to 43 MeV-cm2/mg at 125°C
    • ELDRS Free to 30 krad(Si)
    • Total Ionizing Dose (TID) RLAT for Every Wafer Lot up to 20 krad(Si)
  • Space Enhanced Plastic
    • Controlled Baseline
    • Gold Wire
    • NiPdAu Lead Finish
    • One Assembly and Test Site
    • One Fabrication Site
    • Available in Military (–55°C to 125°C) Temperature Range
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability
    • Enhanced Mold Compound for Low Outgassing
  • Enhanced PWM Rejection
  • Excellent CMRR: 132 dB (Typical)
  • Wide Common-Mode Range: –4 V to 80 V
  • Gain: 20 V/V:
    • Gain Error: 0.2% (Maximum)
    • Gain Drift: 2.5 ppm/°C (Maximum)
  • Offset Voltage: ±25 µV (Maximum)
  • Offset Drift: 250 nV/°C (Maximum)
  • Quiescent Current: 2.4 mA (Maximum)

All trademarks are the property of their respective owners.

open-in-new Find other Current sense amplifiers analog output

Description

The INA240-SEP device is a voltage-output, current-sense amplifier with enhanced PWM rejection that can sense drops across shunt resistors over a wide common-mode voltage range from –4 V to 80 V, independent of the supply voltage. The negative common-mode voltage allows the device to operate below ground, accommodating the flyback period of typical solenoid applications. Enhanced PWM rejection provides high levels of suppression for large common-mode transients (ΔV/Δt) in systems that use pulse width modulation (PWM) signals (such as motor drives and solenoid control systems). This feature allows for accurate current measurements without large transients and associated recovery ripple on the output voltage.

This device operates from a single 2.7-V to 5.5-V power supply, drawing a maximum of 2.4 mA of supply current. The fixed gain is 20 V/V. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10-mV full-scale.

open-in-new Find other Current sense amplifiers analog output
Download

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 17
Type Title Date
* Datasheet INA240-SEP Wide Common-Mode Range, High- and Low-Side, Bidirectional, Zero-Drift, Current-Sense Amplifier in Space Enhanced Plastic datasheet Dec. 20, 2018
* Radiation & reliability report INA240-SEP Single-Event Latch-Up (SEL) Radiation Report Aug. 14, 2020
* VID INA240-SEP VID INA240-SEP VID V6218615 Aug. 04, 2020
* Radiation & reliability report INA240-SEP Reliability Report Feb. 28, 2019
* Radiation & reliability report INA240-SEP wide common-mode high/low-side bidirectional zero-drift cs amp TID Feb. 01, 2019
Application note High-Side Motor Current Monitoring for Over-Current Protection (Rev. B) Feb. 23, 2021
Technical article How current-sense amplifiers monitor satellite health Feb. 08, 2021
Application note Current Sensing in an H-Bridge (Rev. B) Feb. 05, 2021
Selection guide TI Space Products (Rev. H) Jan. 27, 2021
Application note Current Measurements in Power Supplies (Rev. B) Dec. 29, 2020
Application note Current Mode Control in Switching Power Supplies (Rev. B) Dec. 29, 2020
Technical article Space Enhanced Plastic gives designers a new solution for emerging low-Earth orbit commercial applications Oct. 03, 2019
Application note Reduce the risk in NewSpace with Space Enhanced Plastic products Jul. 29, 2019
Technical article A key to accurate system thermal management: monitoring both current flow and temperature Oct. 04, 2018
Application note Low-Drift, Precision, In-Line Motor Current Measurements With PWM Rejection (Rev. B) Jul. 20, 2018
Technical article System trade-offs for high- and low-side current measurements Jun. 01, 2017
White paper Overcurrent protection enables more efficient and reliable systems May 16, 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
25
Description

Evaluate the performance of the INA240 current sense amplifier with the INA240 evaluation module. The INA240EVM package includes one large PCB that can be broken apart into four separate PCBs, one for each of the four gain versions (INA240A1/A2/A3/A4).

 The EVM includes test points for external (...)

Features
  • Simple access to all device pins
  • Multiple input signal options
  • Space for optional input filtering
  • Configurable reference pins

Design tools & simulation

SIMULATION MODEL Download
SBOMAC7A.ZIP (28 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBOMAC8A.TSC (440 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SBOMB42.ZIP (48 KB) - PSpice Model
SIMULATION MODEL Download
SBOMBC6.ZIP (23 KB) - PSpice Model
SIMULATION MODEL Download
SBOMBE4.ZIP (23 KB) - PSpice Model
SIMULATION MODEL Download
SBOMBG4.ZIP (23 KB) - PSpice Model
SIMULATION MODEL Download
SBOMBG5.ZIP (25 KB) - PSpice Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOL Download
SPICE-based analog simulation program
TINA-TI TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
document-generic User guide
CALCULATION TOOL Download
SBOR020A.ZIP (525 KB)

Reference designs

REFERENCE DESIGNS Download
Current Shunt Monitor with Transient Robustness Reference Design
TIDA-00302 This high-side current shunt monitor is used to measure the voltage developed across a current-sensing resistor when current passes through it.

Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)

document-generic Schematic document-generic User guide
Design files

CAD/CAE symbols

Package Pins Download
TSSOP (PW) 8 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos