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INA750A

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Amplif. de detec. de cte. de ultra prec., der. integ., 110 V y 35 ARMS con rechazo de PWM mejorado

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Hoja de datos

document-pdfAcrobat INA750x –4V to 110V, Bidirectional, Ultra-Precise, Current Sense Amplifier With Enhanced PWM Rejection and 35A EZShunt Technology datasheet (Rev. A) (Inglés) PDF | HTML

INA750A

ACTIVO

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Detalles del producto

Common-mode voltage (max) (V)

110

Common-mode voltage (min) (V)

-4

Continuous current (max) (A)

35

Gain error (%)

0.05

CMRR (min) (dB)

160

Bandwidth (kHz)

1000

Features

Analog Gain Set, Enhanced PWM Rejection

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Common-mode voltage (max) (V)

110

Common-mode voltage (min) (V)

-4

Continuous current (max) (A)

35

Gain error (%)

0.05

CMRR (min) (dB)

160

Bandwidth (kHz)

1000

Features

Analog Gain Set, Enhanced PWM Rejection

Rating

Catalog

Operating temperature range (°C)

-40 to 125

VQFN (REM)

14

20 mm² (5 mm × 4 mm)

Precision design with integrated shunt resistor
- ±35A continuous current at 25°C
- ±25A continuous current from at 125°C
- Shunt resistor: 800µΩ
- Shunt inductance: 2.5nH
Wide common-mode voltage range: –4V to +110V
Enhanced PWM rejection optimized for systems subject to switching common-mode voltages
- Supports switching frequencies up to 125kHz
Excellent CMRR
- 160dB DC CMRR
- 114dB AC CMRR at 50kHz
High measurement accuracy
- System Gain error (maximum)
  - Version A: ±0.4%, ±40ppm/°C drift
  - Version B: ±1%, ±100ppm/°C drift
- Offset current (maximum)
  - Version A: ±20mA, ±35mA over temperature
  - Version B: ±105mA, ±125mA over temperature
Adjustable gain with external resistor divider network: 40mV/A to 800mV/A
Open-drain temperature alert at TJ of 160°C

Precision design with integrated shunt resistor
- ±35A continuous current at 25°C
- ±25A continuous current from at 125°C
- Shunt resistor: 800µΩ
- Shunt inductance: 2.5nH
Wide common-mode voltage range: –4V to +110V
Enhanced PWM rejection optimized for systems subject to switching common-mode voltages
- Supports switching frequencies up to 125kHz
Excellent CMRR
- 160dB DC CMRR
- 114dB AC CMRR at 50kHz
High measurement accuracy
- System Gain error (maximum)
  - Version A: ±0.4%, ±40ppm/°C drift
  - Version B: ±1%, ±100ppm/°C drift
- Offset current (maximum)
  - Version A: ±20mA, ±35mA over temperature
  - Version B: ±105mA, ±125mA over temperature
Adjustable gain with external resistor divider network: 40mV/A to 800mV/A
Open-drain temperature alert at TJ of 160°C

The INA750x is a voltage output, current sense amplifier with an integrated shunt resistor of 800µΩ. The INA750x is designed to monitor bidirectional current over a common-mode range of –4V to +110V, independent of the supply voltage. Adjustable gain option assists in optimizing the system dynamic range. The integration of the Kelvin connected shunt resistor with a zero-drift chopped amplifier provides calibration equivalent measurement accuracy, ultra-low temperature drift performance of ±40ppm/°C, and an optimized layout for the sensing resistor.

The INA750x is designed with enhanced PWM rejection circuitry to suppress disturbances from large (dv/dt) common-mode transients and enable real-time continuous current measurements in switching systems. The continuous measurements are critical for inline current measurements in a motor-drive application, and for solenoid valve control applications

This device operates from a single 2.7V to 5.5V power supply, drawing a maximum of 4.25mA of supply current. All versions are specified over the extended operating temperature range (–40°C to +125°C), and are available in a 14-pin VQFN package.

The INA750x is a voltage output, current sense amplifier with an integrated shunt resistor of 800µΩ. The INA750x is designed to monitor bidirectional current over a common-mode range of –4V to +110V, independent of the supply voltage. Adjustable gain option assists in optimizing the system dynamic range. The integration of the Kelvin connected shunt resistor with a zero-drift chopped amplifier provides calibration equivalent measurement accuracy, ultra-low temperature drift performance of ±40ppm/°C, and an optimized layout for the sensing resistor.

The INA750x is designed with enhanced PWM rejection circuitry to suppress disturbances from large (dv/dt) common-mode transients and enable real-time continuous current measurements in switching systems. The continuous measurements are critical for inline current measurements in a motor-drive application, and for solenoid valve control applications

This device operates from a single 2.7V to 5.5V power supply, drawing a maximum of 4.25mA of supply current. All versions are specified over the extended operating temperature range (–40°C to +125°C), and are available in a 14-pin VQFN package.

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Documentación principal	Tipo	Título	Opciones de formato
*	Hoja de datos	INA750x –4V to 110V, Bidirectional, Ultra-Precise, Current Sense Amplifier With Enhanced PWM Rejection and 35A EZShunt Technology datasheet (Rev. A)	PDF \| HTML	12/11/2025
	Información sobre seguridad funcional	INA75X-Q1 Functional Safety FIT Rate, FMD and Pin FMA	PDF \| HTML	11/11/2025
	Nota sobre la aplicación	Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers	PDF \| HTML	18/11/2024
	Certificado	INA750AEVM EU Declaration of Conformity (DoC)	PDF \| HTML	31/10/2024

Diseño y desarrollo

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Placa de evaluación

INA75XXEVM — Módulo de evaluación INA75xx

El módulo de evaluación (EVM) INA75xx incluye el amplificador de detección de corriente INA750x bidireccional y ultrapreciso de 4 V a 110 V con tecnología EZShunt™ de 25 A. El INA750 también cuenta con rechazo de modulación por ancho de pulsos (PWM) mejorado. El EVM proporciona una plataforma que (...)

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