LMH2180SD/NOPB Integrated Circuits (ICs)

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LMH2180SD/NOPB is a high speed, low power, fully differential, advanced low voltage differential signaling (LVDS), multi-purpose differential line driver developed to drive a variety of data transmission standards such as LVDS, CML and double data rate (DDR). It is a line driver for inter-chip communication, communication between different chips in the same system, and also for communication between different systems. This line driver also complies with the LVDS protocol, the Controlled-Edge Rate (CER) technology, and the differential Coding scheme (DCS). As its recognized application field, Clock/Timing - Clock Buffers, Drivers, are the market references for the LMH2180SD/NOPB device.

The features of the LMH2180SD/NOPB device include low power consumption with a quiescent current of 17 mA max, a propagation delay of 8.5 ns, and a control input which allows the device to operate in either single-ended or differential mode. The device also provides a differential power supply rail of 1.8 V and the ability to sense the input signal level, making it fully applicable to LVDS systems. The device also features predefined architectures such as data encoding, serial output, and frequency based drivers with integrated glitch-free switching without external components.

The design of the LMH2180SD/NOPB device is extremely robust and tolerant of signal packaging, power issues, and overvoltage conditions. Its internal power save control eliminates the possibility of device damage from current limiting. With its high-performance ESD protection, the device derives its stability from its high level of ESD immunity.

The working principle of the LMH2180SD/NOPB device entails using three main stages: First stage is the data serialization stage which contains a 5-bit data latches along with a multiplexer to control the data being sent to the output stage. Second is the output stage that is the driving stage. It consists of two small-signal N-channel MOSFETs connected in common source configuration. The input from the data serialization stage is translated by the MOSFETs and is used to drive the differential or single ended outputs. Third is the power stage which consists of a PMOS FET that is used to control the power consumption of the device.

The power consumption has been reduced by placing the power transistors in a low-voltage common-emitter configuration. The power consumption can be further reduced by using the power save control circuit. The power save control circuit enables the device to enter a "sleep" mode whenever the input is low and to return to the active state when data is present.

The LMH2180SD/NOPB device is a highly integrated and cost-effective LVDS line driver. It is designed to provide reliable, low-power transmission capabilities to suit various types of applications requiring LVDS data transmission. It is compliant with the LVDS protocol and offers data encoding, serial output, and frequency based drivers with an integrated glitch-free switching system. With the combination of power save control and high level ESD protection, the LMH2180SD/NOPB device is an ideal solution for applications requiring reliable transmission of LVDS data.

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