HMC974LC3C

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HMC974LC3C is an integrated circuit leads from the Linear-Comparators classification. It is a mix-signal comparator designed for switching low-speed, high-impedance analog signals in single-ended or differential inputs. It has a wide range of applications including DC voltage and AC line protection, quadrature demodulation, pulse extraction, threshold detection, temperature control, power supply monitoring, and fault detection.

HMC974LC3C has three voltage comparator sections with one input common to all sections. This means that it can detect up or down changes in three voltages simultaneously. Its input is composed of LVPECL, CMOS, and TTL compatible signals, so the HMC974LC3C can be used with analog voltages from DC to near 11GHz.

The Comparator section of the HMC974LC3C is a differential amplifier with a high-gain, high-impedance input stage, followed by a low noise amplifier stage. The HMC974LC3C is designed to minimize the effect of non-linearity in the transimpedance path of a typical PECL device, while maintaining high input impedance.

The reference voltage of the HMC974LC3C can be adjusted externally or internally. An external reference voltage input can range from 0.25V to 1.0V and allows the user to easily adjust the importance of logic signals. Additionally, the HMC974LC3C also has an adjustable hysteresis feature which allows for greater flexibility in noise and transient rejection.

The output of the HMC974LC3C is a differential PECL voltage, which can be used to drive TTL and LVPECL logic systems. With the HMC974LC3C, the noise performance is improved, and the high-speed operation is more robust compared to other inverting comparators.

The HMC974LC3C is designed to switch low-speed, high-impedance analog signals between single-ended and differential inputs. It allows for accurate and reliable high-speed detection and conversion of these signals, while also providing a high level of noise and transient rejection. With its wide range of applications, the HMC974LC3C is a great choice for any application requiring fast, high-impedance detection of analog signals.

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