INA331IDGKTG4

Voltage - Input Offset:	250µV
Base Part Number:	INA331
Supplier Device Package:	8-VSSOP
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 125°C
Voltage - Supply, Single/Dual (±):	2.5 V ~ 5.5 V, ±1.25 V ~ 2.75 V
Current - Output / Channel:	48mA
Current - Supply:	415µA
Series:	--
Current - Input Bias:	0.5pA
-3db Bandwidth:	2MHz
Slew Rate:	5 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	1
Amplifier Type:	Instrumentation
Part Status:	Active
Packaging:	Tape & Reel (TR)

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INA331IDGKTG4 Application Field and Working Principle

The INA331IDGKTG4 is a high performance, single-channel current sensing amplifier capable of sensing currents of up to 400mA. The semiconductor chip has an operating voltage range of 2V to 72V, making it suitable for applications in a variety of industrial and automotive devices. The INA331IDGKTG4 current sensing amplifier circuit is suitable for measuring current in power supply systems, industrial equipment, communication equipment, automotive electronics, etc.

The INA331IDGKTG4 can be used in the design of a wide variety of applications, ranging from power supply systems and industrial equipment to automotive electronics. The combination of a wide voltage range and a built-in low-drift current-sensing amplifier means that it can handle both low and high currents, with high accuracy.

The INA331IDGKTG4 is designed to measure the differential voltage between two current sources and generate an output voltage corresponding to the difference. The output voltage is proportional to the ratio between the two input currents. In order to allow for a wide range of measurements, the INA331IDGKTG4 has a wide selection of programming options. This includes an adjustable gain, a selectable voltage bias, and an adjustable current limit.

The working principle of the INA331IDGKTG4 current sensing amplifier is based on the Voltage Transfer Function (VTF). The VTF is a "series voltage divider", which allows the current in one branch of the divider to be measured by the voltage at the other branch of the divider. In the INA331IDGKTG4, two current sources of two different currents (I1 and I2) are connected in series. The voltage across the two sources is measured with a precision amplifier. The output voltage is proportional to the ratio between the two input currents.

The advantage of the INA331IDGKTG4 is its high accuracy, low power consumption, and low current leakage. The accuracy is achieved by the low signal-to-noise ratio, while the low power consumption is due to the low bias current and low power dissipation of the amplifier. The low current leakage is due to its advanced leakage limiting circuit. The circuit also helps eliminate unwanted current spikes. The INA331IDGKTG4 also offers high-frequency response and good power supply rejection ratio.

Overall, the INA331IDGKTG4 current sensing amplifier is a versatile and reliable instrument that can be used in a wide range of applications, from power supply and industrial equipment to automotive electronics. It provides excellent performance for measuring currents in a variety of applications, and is suitable for use in applications that require high accuracy, low power and low current leakage.

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