The INA254 is a
voltage-output, current sense amplifier with a
400-µΩ integrated shunt resistor. The INA254 is designed to
monitor bidirectional currents over a wide
common-mode range from –4 V to +80 V, independent
of the supply voltage. Three fixed gains are
available: 20 mV/A, 40 mV/A, and 75 mV/A. The
integration of the precision resistor with a
zero-drift chopped amplifier provides calibration
equivalent measurement accuracy, ultra-low
temperature drift performance of ±45 ppm/°C
(maximum), and an optimized Kelvin layout for the
sensing resistor.
The INA254 is designed with enhanced PWM rejection circuitry to suppress large (dv/dt) signals that enable real-time continuous current measurements. The measurements are critical for in-line current measurements in a motor-drive application, and for solenoid valve control applications.
This device operates from a single 2.7-V to 5.5-V
power supply, drawing a maximum of 2.4 mA of supply current. All gain versions are specified
over the extended operating temperature range (–40°C to +125°C), and are available in a
24-pin HTSSOP package.
The INA254 is a
voltage-output, current sense amplifier with a
400-µΩ integrated shunt resistor. The INA254 is designed to
monitor bidirectional currents over a wide
common-mode range from –4 V to +80 V, independent
of the supply voltage. Three fixed gains are
available: 20 mV/A, 40 mV/A, and 75 mV/A. The
integration of the precision resistor with a
zero-drift chopped amplifier provides calibration
equivalent measurement accuracy, ultra-low
temperature drift performance of ±45 ppm/°C
(maximum), and an optimized Kelvin layout for the
sensing resistor.
The INA254 is designed with enhanced PWM rejection circuitry to suppress large (dv/dt) signals that enable real-time continuous current measurements. The measurements are critical for in-line current measurements in a motor-drive application, and for solenoid valve control applications.
This device operates from a single 2.7-V to 5.5-V
power supply, drawing a maximum of 2.4 mA of supply current. All gain versions are specified
over the extended operating temperature range (–40°C to +125°C), and are available in a
24-pin HTSSOP package.