LE79128KVC

LE79128KVC is a kind of integrated circuit, which is widely used in the applications of various levels for telecommunication interface. It is based on the same architecture and idea of SN7128 family, but with the lower cost and higher reliability. The main features of LE79128KVC are wide operating temperature and the superior low voltage operation. It is applied in industrial control and power and some other telecommunication applications.

Working Principle

The working principle of LE79128KVC is based on a low noise, high linearity circuit design. The circuit includes an analog basic cell, an analog multiplexer, an anti-parallel transistor, an error canceling current mirror, a differential amplifier and a voltage divider. The analog basic cell has bi-directional gain, and the analog multiplexer has switches to control the level of gain. A low noise current mirror is used to provide a differential voltage output with a low offset voltage. The anti-parallel transistor is used to reduce the voltage level of the output signal and to provide a faster conversion. The differential amplifier is used to provide a low power consumption and stability for the circuit. Finally, a voltage divider is used to split the input signal into two levels.

Application Field

LE79128KVC has various application fields that relate to the telecommunication. It is widely applied in high volume and low cost ADC designs, high voltage power & industrial control, local and remote monitoring systems, multi-system remote monitoring, mobile & wireless handsets, high speed xDSL, LTE and cellular applications. Furthermore, it is applicable for the transmission and reception side of ISDN, DSL and other telecommunication applications.

Due to the wide temperature range operating ability, LE79128KVC can be applied to temperature sensitive applications. It is suitable in both normal and extreme temperature environments. Moreover, one of the characteristics of LE79128KVC is the superior low voltage operation, which makes it suitable in power supplies, both balanced and unbalanced power systems. Besides, the high linearity, low offset and low noise performance of LE79128KVC ensures the accuracy and long-term stability.