SSM2143SZ

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SSM2143SZ Application Field and Working Principle

The SSM2143SZ is a high-performance, low-noise instrumentation amplifier featuring a wide range of applications. It is a low cost, single supply amplifier with an offset voltage of only 2mV. The amplifier is ideal for medical, industrial and automotive instrumentation applications.

The SSM2143SZ has a very low noise density of 3.2nV/rtHz which makes it suitable for high-precision, low-noise measurements. It has a low gain bandwidth product of 0.4MHz and a wide bandwidth of 4MHz. This makes the SSM2143SZ suitable for a wide range of applications such as signal conditioning, pressure and temperature measurements, strain measurements, temperature and strain compensation, etc.

The SSM2143SZ has a very wide input common-mode voltage range from −2.5V to +2.5V, which makes it suitable for both single-ended and differential inputs. The amplifier can be powered with a single supply voltage from +3V to +24V. It has a very low power consumption of only 2.2mA.

The working principle of the SSM2143SZ is based on a differential input and a unipolar output structure. It contains two input amplifiers, a differential stage, and a current mirror. The differential stage is controlled by two resistors in the feedback loop, which allows the output voltage to be internally adjusted. The current mirror is used to create a balanced output, and two capacitors in the output stage compensate the low frequency response. The output voltage is determined by the voltage applied to the two input pins and the feedback resistors in the feedback loop.

The SSM2143SZ can be used in various applications, such as sensor data acquisition, signal conditioning, bridge measurements, instrumentation amplifiers and various industrial, automotive and audio systems. Its low noise, low power consumption, and wide input common-mode voltage range make it an ideal choice for a wide range of applications.

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