INA240PMPWTPSEP Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
INA240PMPWTPSEP is a zero-drift, voltage-feedback current-sense amplifier supporting common-mode voltages up to 80 V on low or high-side configurations. It achieves a minimum 120 dB common-mode rejection ratio and 25 µV maximum input offset, with enhanced PWM rejection for motor-drive systems. Packaged in Space Enhanced Plastic SOIC, it targets space-grade power monitoring and industrial motor control.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- INA240PMPWTPSEP Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of INA240PMPWTPSEP?
- 80 V common-mode voltage range for low and high-side sensing
- Zero-drift architecture with 25 µV maximum input offset voltage
- 120 dB minimum common-mode rejection ratio (132 dB typical)
- Enhanced PWM rejection for accurate sensing in motor-drive environments
- Space Enhanced Plastic (SEP) package for radiation-tolerant applications
- Voltage-feedback operational amplifier architecture
- Wide temperature range operation suited to harsh environments
What is INA240PMPWTPSEP used for?
The INA240PMPWTPSEP is designed for space and high-reliability power systems that require accurate current sensing across 80 V common-mode rails in the presence of high-frequency PWM switching noise. Its zero-drift architecture and 132 dB typical CMRR make it reliable in satellite power distribution units and spacecraft motor controllers. Industrial designs such as servo drives and three-phase inverters also benefit from its enhanced PWM rejection, which maintains measurement accuracy even at high carrier frequencies.
What are the specifications of INA240PMPWTPSEP?
| Pbfree Code | Yes |
| Date Of Intro | 2018-12-23 |
| YTEOL | 0 |
| Amplifier Type | OPERATIONAL AMPLIFIER |
| Architecture | VOLTAGE-FEEDBACK |
| Common Mode Voltage-Max | 80V |
| Common-mode Reject Ratio-Min | 120dB |
| Common-mode Reject Ratio-Nom | 132dB |
| Frequency Compensation | NO |
| Input Offset Voltage-Max | 25 µV |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Low-Bias | NO |
| Low-Offset | NO |
| Micropower | NO |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR, 7 INCH |
| Peak Reflow Temperature (Cel) | 260 |
| Power | NO |
| Programmable Power | NO |
| Slew Rate-Nom | 2V/us |
| Supply Current-Max | 2.6mA |
| Supply Voltage Limit-Max | 6V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | BICMOS |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Unity Gain BW-Nom | 400 |
| Voltage Gain-Nom | 20 |
| Wideband | NO |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
| Country of Origin | Malaysia |
Where can I find the INA240PMPWTPSEP datasheet?
INA240PMPWTPSEP Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for INA240PMPWTPSEP?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What common-mode voltage range does the INA240PMPWTPSEP support for current sensing?
The INA240PMPWTPSEP supports common-mode voltages from -4 V to +80 V, allowing current sensing on both low-side and high-side shunt resistors connected to bus voltages up to 80 V. This range covers typical 48 V and 60 V power bus architectures used in spacecraft power distribution and industrial motor drive systems without requiring level-shift circuits.
How does the enhanced PWM rejection feature help in motor-drive applications?
The device's enhanced PWM rejection circuit suppresses switching transients that appear on the shunt resistor during PWM inverter operation, where switching frequencies commonly range from 10 kHz to 100 kHz. By filtering these transients, the amplifier delivers stable current readings even at high duty cycles, enabling accurate torque control and overcurrent protection in three-phase motor controllers and servo drives.
What is the input offset voltage specification and why does it matter for precision current sensing?
The INA240PMPWTPSEP specifies a maximum input offset voltage of 25 µV. When sensing milliamp-level currents across a small shunt resistor such as 10 mΩ, a 25 µV offset represents less than 2.5 mA measurement error, enabling sub-percent accuracy in low-current monitoring applications without the need for external trimming or calibration circuits.
Why is the Space Enhanced Plastic package important for satellite power system designs?
The Space Enhanced Plastic (SEP) package is screened and qualified for radiation environments typical of low Earth orbit missions, where cumulative ionizing dose and single-event effects degrade standard commercial components. It retains the small SOIC footprint of approximately 5 mm × 4 mm while meeting MIL-grade screening, reducing mass and board area penalties in power regulation modules on small satellites and CubeSats.
How does the 120 dB common-mode rejection ratio benefit high-voltage industrial sensing?
At 120 dB minimum CMRR, the INA240PMPWTPSEP rejects 10^6 parts of common-mode interference for every part of differential signal, meaning a 80 V common-mode swing produces less than 80 µV equivalent differential error. This level of rejection is critical in variable-frequency drive applications where switching noise on the 48 V or higher bus would otherwise saturate a lower-CMRR amplifier and corrupt current feedback to the control loop.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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