MPY100SG

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Linear-Analog Multipliers, Dividers are capable of performing mathematical calculations on analog input signals without the need for conversion to digital. The MPY100SG application field and working principle is one example of how such devices can be employed in a wide range of applications.

MPY100SG is a programmable gain low-noise amplifier (LNA) with an analog multiplication and division path. The application of this device is twofold - in an analog multiplication configuration, it can be used as an adjustable gain amplifier; and in an analog division configuration it can be used to obtain a programmable ratio between two signal inputs.

The working principle of the MPY100SG is based on the concept of impedance inverters. An impedance inverter is a device that converts a resistive load into a voltage source. By taking advantage of this concept, the input signals are converted from a resistive to a voltage level, resulting in a gain that can be controlled by a variable impedance or resistance.

In a multiplication configuration, the MPY100SG works by feeding one of the two input signals into an imaginary node, whereby both the voltages of the two inputs are added together. This voltage is then applied to an impedance inverter, which converts this voltage into an impedance of the opposite sign. The output of the impedance inverter is then connected to an adjustable resistor, which, when adjusted, provides gain control of the output signal. In a division configuration, the principle is the same, but the variable resistor is fed with the voltage of the second input, so that the gain can be adjusted accordingly.

The MPY100SG can also be used to measure very low input signals, like temperature gradients. This is achieved by using two differential inputs. The difference of the two input signals is then converted into an impedance level and fed to an adjustable resistor. By controlling the resistance of this adjustable resistor, the gain of the output signal is directly proportional to the difference in voltage between the two inputs.

The MPY100SG can also be used in combination with other devices, such as transducers and receivers, to sample and process signals. In this configuration, transducers convert the signal into an electric current, which is fed to the MPY100SG for amplification. The output of the MPY100SG is then connected to a receiver, where the signal is further processed or converted into a usable analog or digital signal.

The MPY100SG is a versatile, easy-to-use device that can be employed for a variety of applications, ranging from simple mathematical operations to complex signal processing purposes. Its programmable gain and high-resolution capability make it a preferred choice for many engineering applications.

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