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INA296B-Q1

ACTIVE

AEC-Q100, -5V to 110V, bidirectional, 1.1-MHz 8-V/µs high-precision current sense amplifier

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Data sheet

INA296B-Q1

ACTIVE
Data sheet Order now

Product details

Product type Analog output Common-mode voltage (max) (V) 110 Common-mode voltage (min) (V) -5 Input offset (±) (max) (µV) 150 Input offset drift (±) (typ) (µV/°C) 0.5 Features Bidirectional, High precision, Low-side Capable Rating Automotive Voltage gain (V/V) 10, 20, 50, 100, 200 CMRR (min) (dB) 120 Bandwidth (kHz) 1100 Iq (max) (mA) 3.2 Number of channels 1 Comparators (#) 0 Gain error (%) 0.1 Gain error drift (±) (max) (ppm/°C) 5 Slew rate (V/µs) 8 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150
Product type Analog output Common-mode voltage (max) (V) 110 Common-mode voltage (min) (V) -5 Input offset (±) (max) (µV) 150 Input offset drift (±) (typ) (µV/°C) 0.5 Features Bidirectional, High precision, Low-side Capable Rating Automotive Voltage gain (V/V) 10, 20, 50, 100, 200 CMRR (min) (dB) 120 Bandwidth (kHz) 1100 Iq (max) (mA) 3.2 Number of channels 1 Comparators (#) 0 Gain error (%) 0.1 Gain error drift (±) (max) (ppm/°C) 5 Slew rate (V/µs) 8 TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 150
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) VSSOP (DGK) 8 14.7 mm² (3 mm × 4.9 mm) VSSOP (DGS) 10 14.7 mm² (3 mm × 4.9 mm) SOT-23-THN (DDF) 8 8.12 mm² (2.9 mm × 2.8 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature Grade 1: −40°C to 125°C, TA
    • Temperature Grade 0: −40°C to 150°C, TA
  • Functional Safety-Capable
  • Wide common-mode voltage:
    • Operational voltage: −5V to 110V
    • Survival voltage: −20V to 120V
  • Bidirectional operation
  • High small signal bandwidth: 1.1MHz (at all gains)
  • Slew rate: 8V/µs
  • Step response settling time to 1%: 1µs
  • Excellent CMRR: 166dB
  • Accuracy:
    • Gain error (maximum)
      • Version A: ±0.01%, ±1ppm/°C drift
      • Version B: ±0.1%, ±5ppm/°C drift
    • Offset voltage (maximum)
      • Version A: ±10µV, ±0.1µV/°C drift
      • Version B: ±150µV, ±0.5µV/°C drift
  • Available gains:
    • INA296A1-Q1 : 10V/V
    • INA296A2-Q1 : 20V/V
    • INA296A3-Q1 : 50V/V
    • INA296A4-Q1 : 100V/V
    • INA296A5-Q1 : 200V/V
  • Package options: SOT23-8, VSSOP-8, SOIC-8, VSSOP-10
  • AEC-Q100 qualified for automotive applications:
    • Temperature Grade 1: −40°C to 125°C, TA
    • Temperature Grade 0: −40°C to 150°C, TA
  • Functional Safety-Capable
  • Wide common-mode voltage:
    • Operational voltage: −5V to 110V
    • Survival voltage: −20V to 120V
  • Bidirectional operation
  • High small signal bandwidth: 1.1MHz (at all gains)
  • Slew rate: 8V/µs
  • Step response settling time to 1%: 1µs
  • Excellent CMRR: 166dB
  • Accuracy:
    • Gain error (maximum)
      • Version A: ±0.01%, ±1ppm/°C drift
      • Version B: ±0.1%, ±5ppm/°C drift
    • Offset voltage (maximum)
      • Version A: ±10µV, ±0.1µV/°C drift
      • Version B: ±150µV, ±0.5µV/°C drift
  • Available gains:
    • INA296A1-Q1 : 10V/V
    • INA296A2-Q1 : 20V/V
    • INA296A3-Q1 : 50V/V
    • INA296A4-Q1 : 100V/V
    • INA296A5-Q1 : 200V/V
  • Package options: SOT23-8, VSSOP-8, SOIC-8, VSSOP-10

The INA296x-Q1 is an ultra-precise, bidirectional current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from –5V to 110V, independent of the supply voltage. The high-precision current measurement is achieved through a combination of low offset voltage (±10µV, maximum), small gain error (±0.01%, maximum) and a high DC CMRR (typical 166dB). The INA296x-Q1 is not only designed for high voltage, bidirectional DC current measurements, but also for high-speed applications (such as transient detection and fast overcurrent protection) with a high signal bandwidth of 1.1MHz and fast settling time.

The INA296x-Q1 operates from a supply of 2.7V to 20V, drawing 2.5mA of supply current. The INA296x-Q1 is available in five gain options: 10V/V, 20V/V, 50V/V, 100V/V, and 200V/V. Multiple gain options allow for optimization between available shunt resistor values and wide output dynamic range requirements.

The INA296x-Q1Grade 1 is specified over operating temperature range of −40°C to 125°C and Grade 0 over operating temperature range of −40°C to 150°C.

The INA296x-Q1 is an ultra-precise, bidirectional current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from –5V to 110V, independent of the supply voltage. The high-precision current measurement is achieved through a combination of low offset voltage (±10µV, maximum), small gain error (±0.01%, maximum) and a high DC CMRR (typical 166dB). The INA296x-Q1 is not only designed for high voltage, bidirectional DC current measurements, but also for high-speed applications (such as transient detection and fast overcurrent protection) with a high signal bandwidth of 1.1MHz and fast settling time.

The INA296x-Q1 operates from a supply of 2.7V to 20V, drawing 2.5mA of supply current. The INA296x-Q1 is available in five gain options: 10V/V, 20V/V, 50V/V, 100V/V, and 200V/V. Multiple gain options allow for optimization between available shunt resistor values and wide output dynamic range requirements.

The INA296x-Q1Grade 1 is specified over operating temperature range of −40°C to 125°C and Grade 0 over operating temperature range of −40°C to 150°C.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet INA296x-Q1 AEC-Q100, –5V to 110V, Bidirectional, 1.1MHz, 8V/μs, Ultra-Precise Current Sense Amplifier datasheet (Rev. D) PDF | HTML Jun 9, 2025
Application note Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers PDF | HTML Nov 18, 2024
Functional safety information INA241x-Q1 and INA296x-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. A) PDF | HTML Jan 29, 2024
Analog design Journal Second-sourcing options for small-package amplifiers Mar 26, 2018

Design & development

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

Evaluation board

INA296AEVM — INA296x evaluation module for -5-V to 110-V 1.1-MHz current sense amplifier with 5-V/µs slew rate

INA296AEVM is a small module with five completely independent boards that can be broken off by the designer. Five schematically identical boards are available for each of the five gain variations of the INA296x with inputs up to 110-V common-mode and 10-A (onboard shunt) input capability.

Each board (...)

User guide: PDF | HTML
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Calculation tool

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This Excel calculator provides a comparison between two and five of our standard current sense amplifiers, delivering a chart containing the basic parameters of each device. This calculator also takes system condition inputs from users such as common-mode voltage, supply voltage, shunt resistor (...)
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Reference design

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This reference design overcomes challenges commonly associated with replacing the standard melting fuse. By implementing the TPS1213-Q1 high-side switch controller, INA296B-Q1 current sense amplifier, and a microcontroller, this design provides I2 t overcurrent protection, low-power mode to (...)

Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
VSSOP (DGS) 10 Ultra Librarian
SOT-23-THN (DDF) 8 Ultra Librarian
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