Texas Instruments
AEC-Q100 zero-drift current-sense amp, -4 V to 80 V, PWM rejection, 20 V/V, SOIC-8
The INA240A1QDRQ1 is an automotive-qualified, zero-drift current-sense amplifier with a fixed gain of 20 V/V in an 8-pin SOIC package. Its -4 V to 80 V common-mode range and enhanced PWM rejection enable precise bidirectional measurement across shunt resistors on high-side, low-side or in-line motor phases, even with large common-mode transients. Offset voltage is ±25 µV max and gain error 0.20% max, with 400 kHz bandwidth. Typical applications include electronic power steering, stability and traction control, motor and actuator control, and solenoid and valve control.
Key Specifications
Verify against the original datasheet before quoting.
| Gain | 20 V/V (A1) |
|---|---|
| Common-mode range | -4 V to 80 V |
| Supply voltage | 2.7 V to 5.5 V |
| Offset voltage | ±25 µV max (±250 nV/°C max drift) |
| Gain error / CMRR | 0.20% max; CMRR 132 dB DC, 93 dB at 50 kHz |
| Temperature | Operating ambient -40 to +125 °C |
Market Status
Availability is limited. Factory lead time is currently around 26 weeks.
Quality & Traceability
Cerametronics is ISO 9001 certified and products are RoHS compliant, with counterfeit screening and full traceability on every shipment. A Certificate of Conformance is available on request. For allocation-sensitive or high-risk lots, independent third-party lab verification can be arranged — just flag it on your RFQ. Any lot that fails incoming inspection is quarantined and never shipped.
FAQ
What does the A1 suffix mean?
A1 is the 20 V/V gain option; the INA240-Q1 family also offers A2 (50 V/V), A3 (100 V/V) and A4 (200 V/V).
Why use the INA240-Q1 for in-line motor current sensing?
Its enhanced PWM rejection and -4 V to 80 V common-mode range let it measure phase current accurately while the common-mode voltage swings with each PWM edge.
← See all Hot Shortage & EOL Parts This Week
Cerametronics is an independent electronic components distributor and is not affiliated with Texas Instruments. All trademarks belong to their respective owners.
