INA240A1QPWRQ1
| Parameters | |
|---|---|
| Series | Automotive, AEC-Q100, Zero-Drift |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 8-TSSOP (0.173", 4.40mm Width) |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C |
| Current - Supply | 1.8mA |
| Output Type | - |
| Number of Circuits | 1 |
| Slew Rate | 2V/µs |
| Supplier Device Package | 8-TSSOP |
| -3db Bandwidth | 400 kHz |
| Current - Input Bias | 90 µA |
| Amplifier Type | Current Sense |
| Voltage - Input Offset | 5 µV |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | INA240 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,000 |
| ECCN | EAR99 |
| HTSUS | 8542.33.0001 |
| Voltage - Supply Span (Min) | 2.7 V |
| Voltage - Supply Span (Max) | 5.5 V |
INA240A1QPWRQ1 Current Sense Amplifier 1 Circuit 8-TSSOP
The INA240A1QPWRQ1 is an automotive-qualified, voltage-output, bidirectional current sense amplifier engineered by Texas Instruments as part of the INA240-Q1 series, specifically designed to deliver ultra-precise current measurements across shunt resistors in both high-side and low-side configurations. This device operates over a wide common-mode voltage range from –4 V to 80 V, independent of the supply voltage, with the negative common-mode capability allowing operation below ground to accommodate flyback periods typical in solenoid applications.
The hallmark feature of the INA240A1QPWRQ1 is its enhanced PWM rejection capability, which provides superior immunity to large common-mode transients (ΔV/Δt) commonly encountered in pulse-width modulated systems such as motor drives, solenoid controls, and electronic power steering. This advanced rejection mechanism ensures accurate current measurement without introducing large output voltage transients or associated recovery ripple. The device also features bidirectional current sensing, analog output interface, and programmable output reference level functionality.
Typical application domains span a wide array of industries including automotive systems (electronic power steering, stability and traction control, motor and actuator control, solenoid and valve control), high-performance battery monitoring, precision power management, industrial automation, telecom infrastructure, and motor control systems where accurate, reliable current measurement under noisy PWM conditions is paramount.
Alternative Comparable Current Sensing Amplifiers
1. INA240A2QPWRQ1 (Same AEC-Q100 family with identical –4V to 80V range but 50V/V gain for higher sensitivity applications)
2. INA240A3QPWRQ1 (100V/V gain variant offering enhanced output scaling for ultra-low shunt voltage sensing)
3. INA240A4QPWRQ1 (200V/V gain version maximizing output swing for minimal shunt drop applications)
4. INA240A1QDRQ1 (Same core specifications in SOIC-8 package for alternative board layout preferences)
5. INA240A1DR (Non-automotive qualified version with identical electrical performance for industrial applications)
