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INA223

ACTIVO

Amplificador de detección de corriente de ganancia programable de 26 V y monitor de potencia analógi

Detalles del producto

Product type Analog output Common-mode voltage (max) (V) 26 Common-mode voltage (min) (V) 0 Input offset (±) (max) (µV) 100, 150, 300 Input offset drift (±) (typ) (µV/°C) 0.6 Features I2C, Programmable Gain Rating Catalog Voltage gain (V/V) 20, 128, 300 CMRR (min) (dB) 100 Bandwidth (kHz) 10, 20, 25 Iq (max) (mA) 0.25 Number of channels 1 Comparators (#) 0 Gain error (%) 0.25, 0.5, 1 Gain error drift (±) (max) (ppm/°C) 50 Slew rate (V/µs) 0.25 Operating temperature range (°C) -40 to 105
Product type Analog output Common-mode voltage (max) (V) 26 Common-mode voltage (min) (V) 0 Input offset (±) (max) (µV) 100, 150, 300 Input offset drift (±) (typ) (µV/°C) 0.6 Features I2C, Programmable Gain Rating Catalog Voltage gain (V/V) 20, 128, 300 CMRR (min) (dB) 100 Bandwidth (kHz) 10, 20, 25 Iq (max) (mA) 0.25 Number of channels 1 Comparators (#) 0 Gain error (%) 0.25, 0.5, 1 Gain error drift (±) (max) (ppm/°C) 50 Slew rate (V/µs) 0.25 Operating temperature range (°C) -40 to 105
WSON (DSK) 10 6.25 mm² (2.5 mm × 2.5 mm)
  • Wide Common-Mode Range: 0 V to 26 V
  • ±100 µV Offset (Max, Gain = 300 V/V)
  • Accuracy
    • ±0.25% Shunt Voltage Gain Error (Max)
    • ±0.15% Bus Voltage Gain Error (Max)
    • 1.25% Power Error (Max)
    • 0.3 µV/°C Offset Drift (Max)
    • 50 ppm/°C Gain Drift (Max)
  • Programmable Gains
    • Current Shunt Voltage Gains: 20, 128, 300
    • Bus Voltage Attenuations: 1/10, 1/5, 2/5
  • Monitors/Measures/Reports:
    • Instantaneous Power
    • Bus Voltage
    • Load Current
  • Quiescent Current: 250 µA (Max)
  • Shutdown Current: 1 µA (Max)
  • Wide Common-Mode Range: 0 V to 26 V
  • ±100 µV Offset (Max, Gain = 300 V/V)
  • Accuracy
    • ±0.25% Shunt Voltage Gain Error (Max)
    • ±0.15% Bus Voltage Gain Error (Max)
    • 1.25% Power Error (Max)
    • 0.3 µV/°C Offset Drift (Max)
    • 50 ppm/°C Gain Drift (Max)
  • Programmable Gains
    • Current Shunt Voltage Gains: 20, 128, 300
    • Bus Voltage Attenuations: 1/10, 1/5, 2/5
  • Monitors/Measures/Reports:
    • Instantaneous Power
    • Bus Voltage
    • Load Current
  • Quiescent Current: 250 µA (Max)
  • Shutdown Current: 1 µA (Max)

The INA223 is a voltage-output device that monitors the current, bus voltage, and power of a supply line by sensing a voltage drop across a shunt at common-mode voltages from 0 V to 26 V. The common-mode voltage range is independent of the supply voltage. The low offset of the Zerø-Drift architecture enables current sensing with maximum drops across the shunt as low as 10 mV, full-scale.

The INA223 includes a two-wire interface used for adjusting the configuration settings of the device. The interface is used to control the signal (current shunt voltage, bus voltage, or power) that is directed to the device output. Multiple gain and attenuation settings can be programmed through the two-wire interface to allow for application-specific configurations. The programmable gain feature also allows the device to be operated over a much wider dynamic current load range without having to switch the sensing element used.

A shutdown feature is available to disable the device and effectively disconnect it from the shunt resistor and supply voltage, thus reducing the drain on the battery.

The INA223 operates from a single +2.7-V to +5.5-V supply, drawing a maximum supply current of 250 µA. It is specified over the extended temperature range of –40°C to +105°C, and is offered in an SON-10 package.

The INA223 is a voltage-output device that monitors the current, bus voltage, and power of a supply line by sensing a voltage drop across a shunt at common-mode voltages from 0 V to 26 V. The common-mode voltage range is independent of the supply voltage. The low offset of the Zerø-Drift architecture enables current sensing with maximum drops across the shunt as low as 10 mV, full-scale.

The INA223 includes a two-wire interface used for adjusting the configuration settings of the device. The interface is used to control the signal (current shunt voltage, bus voltage, or power) that is directed to the device output. Multiple gain and attenuation settings can be programmed through the two-wire interface to allow for application-specific configurations. The programmable gain feature also allows the device to be operated over a much wider dynamic current load range without having to switch the sensing element used.

A shutdown feature is available to disable the device and effectively disconnect it from the shunt resistor and supply voltage, thus reducing the drain on the battery.

The INA223 operates from a single +2.7-V to +5.5-V supply, drawing a maximum supply current of 250 µA. It is specified over the extended temperature range of –40°C to +105°C, and is offered in an SON-10 package.

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos Analog Output Current Shunt and Voltage Instantaneous Power Monitor datasheet 13/06/2012
Nota sobre la aplicación Using a PCB Copper Trace as a Current Sense Shunt Resistor (Rev. A) PDF | HTML 27/04/2026
Nota sobre la aplicación Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers PDF | HTML 18/11/2024
Application brief Energy and Power Monitoring with Digital Current Sensors 25/05/2017
Nota sobre la aplicación Understanding the I2C Bus PDF | HTML 30/06/2015

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

INA223EVM — Módulo de evaluación INA223

The INA223EVM is a platform for evaluating the performance of the INA223 under various signal, shunt, and supply conditions.

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