LM2903DMR2G

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The LM2903DMR2G from Texas Instruments is a dual-comparator, wide range voltage comparator IC that operates from a single supply voltage up to 36 V. It has two channels, each with an independent output and set of operational conditions, that can be configured independently. Designed for general purpose and voltage monitoring applications, the LM2903DMR2G is available in two package options and can operate in temperatures ranging from -40°C to 85°C.

The LM2903DMR2G features excellent accuracy, low power consumption, superior noise immunity and fast response time, with typical response times of only 9μs. It is ideal for systems needing to detect diffuse signals, and its 3V logic control input ensures improved immunity to higher levels of common-mode noise. Its power-up/down control and two-stage output current sinking allows for both common-mode and different-mode signals to be detected, and its low power enables extended battery life.

The LM2903DMR2G is part of Texas Instruments’ Linear-Comparators product line, and is therefore a type of precision, wide supply range operational amplifier specifically designed for its comparator application. In comparison to other linear amplifiers, the LM2903DMR2G has a high input impedance and low output impedance, giving it superior capabilities for high-precision signal comparison. These characteristics make it ideal for a range of general-purpose application, such as voltage monitoring, over-voltage/under-voltage protection, soft start and many more.

In addition to these useful characteristics, the LM2903DMR2G also has several built-in features that improve its performance and reliability. These include a hysteresis voltage control, which allows two different output states depending on whether the input voltage is above or below a certain threshold value. This ensures greater accuracy in comparisons and reduces the chances of erroneous readings. Additionally, the LM2903DMR2G employs a glitch-less input stage, preventing any momentary spikes of voltage from triggering spurious output states, and a programmable latch-up protection circuit, which steadily increases the threshold voltage to prevent parametric failures.

In essence, the LM2903DMR2G’s linear-comparator capabilities, wide supply range and low current consumption make it ideal for a wide range of voltage monitoring, signal comparison and protection applications. The low-powered, faster response time and glitch-less input ensures it to be reliable and incredibly precise for use in complex circuit configurations. It is a great option for system integrators, engineers and product unis looking for a high- precision, low power total solution for the detection and monitoring of signals.

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