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INA241A-Q1

Q: Can A1 and A5 share a ±10µV, ±0.01% error budget?

No. Rev D specifies maximum offsets of ±20µV for A1 and ±8µV for A5 at 25°C, VS=5V, VCM=48V and both reference inputs at VS/2. Maximum gain error is ±0.01% for A1–A3 and ±0.015% for A4/A5. Gain accuracy requires GND+50mV < VOUT < VS−200mV; add drift for an over-temperature budget.

Q: Why is the orderable example Grade 1 rather than the shared page's Grade 0?

This follows the family-variant scope, not grade inference from temperature. The shared datasheet explicitly lists Grades 1/0 and restricts its +150°C electrical conditions to INA241B3EDRQ1. This page selects only verified INA241A1QDDFRQ1, Grade 1, TA −40 to +125°C. Discussing A1–A5 parameters does not claim orderable coverage of every gain.

Q: Can it measure across −20 to 120V or directly sense a high-voltage traction pack?

No. −20 to 120V is a survival range; operating common mode is −5 to 110V, separate from the 2.7–20V supply range. The device provides no galvanic isolation. Inputs relative to local ground must meet operating limits and cannot be connected directly across a several-hundred-volt traction pack.

Q: How should I verify the INA241A-Q1 orderable?

The page lists 1 OPN examples from official material checked on 2026-11-06. Match package, function options and temperature definitions; obtain live price/stock from TI or authorized distributors.

Precision −5 to 110V common-mode current amplifier with PWM rejection

Measures shunt drops through switching common-mode transitions for motor or power nodes needing PWM rejection and bidirectional sensing. Budget offset and gain error by A1–A5 using the Rev D electrical table rather than applying the headline ±10µV to every gain. The orderable example is limited to a Grade 1 A1 part; the shared A/B material's Grade 0 claim is not assigned to the A series.

AutomotiveActiveExample package: SOT-23-THN (DDF) · 8 pinVerified 2026-11-06

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5-second verdict

AutomotiveAEC-Q100 Grade 1 (selected INA241A1QDDFRQ1 example)

Temperature−40°C to +125°C (TA; selected INA241A1QDDFRQ1)

Functional safetyFunctional Safety-Capable

LifecycleActive

In one sentence: Qualification is grounded in this TI product's documentation; no grade is inferred from temperature. An ordering table may show junction or variant-specific limits, which must be distinguished from ambient conditions. TI explicitly lists Functional Safety-Capable. This is a device-documentation category, not system ASIL certification; assess the exact function, assumptions and safety manual.

Key specifications

Operating common-mode range−5–110 V; both inputs must remain in range

Common-mode survival range−20–120 V; not a valid measurement range

Supply range2.7–20 V

A1–A5 fixed gains10 / 20 / 50 / 100 / 200 V/V, respectively

A1–A5 input offset (25°C maximum)±20 / ±15 / ±10 / ±10 / ±8 µV; VS = 5 V, VCM = 48 V, VREF1 = VREF2 = VS/2

Gain error (25°C maximum)A1–A3: ±0.01%; A4–A5: ±0.015%; VS = 5 V, VCM = 48 V, VREF1 = VREF2 = VS/2

Output condition for gain accuracyGND + 50 mV < VOUT < VS − 200 mV; not rail-to-rail accuracy

Small-signal bandwidth (typical)1.1 MHz at all gains; not a PWM switching-frequency rating

Orderable variants (OPNs)

The GPN is for selection; the full OPN is for ordering. These examples were observed on the verification date, not live stock. Variants may differ in package, temperature, gain/threshold and, for PMICs, NVM/sequencing. Distinguish TA from TJ in the exact datasheet.

OPN	Package	Temperature	Note
INA241A1QDDFRQ1	SOT-23-THN (DDF) · 8 pin	-40 to +125°C (TI OPN listing; verify TA/TJ)	Verify exact OPN, temperature definition and revision; not a stock claim.

INA241A1QDDFRQ1-40 to +125°C (TI OPN listing; verify TA/TJ)

SOT-23-THN (DDF) · 8 pinVerify exact OPN, temperature definition and revision; not a stock claim.

Official ordering page: https://www.ti.com/product/INA241A-Q1

Typical applications

PWM motor phase-current sensing within the common-mode limitsBidirectional shunt-current measurement on protected 48V nodes

FAQ

Can A1 and A5 share a ±10µV, ±0.01% error budget?

No. Rev D specifies maximum offsets of ±20µV for A1 and ±8µV for A5 at 25°C, VS=5V, VCM=48V and both reference inputs at VS/2. Maximum gain error is ±0.01% for A1–A3 and ±0.015% for A4/A5. Gain accuracy requires GND+50mV < VOUT < VS−200mV; add drift for an over-temperature budget.

Why is the orderable example Grade 1 rather than the shared page's Grade 0?

This follows the family-variant scope, not grade inference from temperature. The shared datasheet explicitly lists Grades 1/0 and restricts its +150°C electrical conditions to INA241B3EDRQ1. This page selects only verified INA241A1QDDFRQ1, Grade 1, TA −40 to +125°C. Discussing A1–A5 parameters does not claim orderable coverage of every gain.

Can it measure across −20 to 120V or directly sense a high-voltage traction pack?

No. −20 to 120V is a survival range; operating common mode is −5 to 110V, separate from the 2.7–20V supply range. The device provides no galvanic isolation. Inputs relative to local ground must meet operating limits and cannot be connected directly across a several-hundred-volt traction pack.

How should I verify the INA241A-Q1 orderable?

The page lists 1 OPN examples from official material checked on 2026-11-06. Match package, function options and temperature definitions; obtain live price/stock from TI or authorized distributors.

Sources and verification

Related selection and design checks

All selection guides →What does TI Q1 mean →AEC-Q100 grades →Model Y TI BOM →

NuAxi is an independent semiconductor market-intelligence platform and is not affiliated with Texas Instruments. Information is for selection reference only and is not a design, certification or procurement guarantee; verify against TI's official datasheet, ordering page and terms.