ADG623BRMZ

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The ADG623BRMZ is a device belonging to the group of Interface – Analog Switches, Multiplexers, Demultiplexers, and it is a monolithic CMOS device that utilizes on-chip CMOS logic levels to control analog signal switch elements. It is composed of two single-pole/double-throw (SPDT) switches, two sample and hold circuits, two driver stages and two gain stages in one integrated structure. The device is actually two CMOS switches in a single package, with each switch having its own driver, gain and sample & hold stages.

When considering its application field, the ADG623BRMZ is ideal for switching low-level analog signals, such as those found in audio, test and measurement, and instrumentation systems. The on-chip sample and hold circuit allows for accurate channel-to-channel switching of signals, and each channel also has an associated driver and gain stage to increase the signal levels of low-level signals before switching takes place. The ADG623BRMZ is also suitable as a gain or attenuation selector in RF circuits. Further, the device can be used as a True RMS-to-DC converter in communications applications, as it provides the necessary isolation between the input signal and the converter.

The ADG623BRMZ operates on 5V power supply and features both low on resistance and low off-isolation of typically 20Ω and 35dB respectively. The high-drive output impedance of 40Ω also helps to maintain an integration profile with internal analog circuits. The device has an exceptionally fast switching speed of approximately 10ns. Furthermore, its power dissipation is quite low, and it can operate in high temperature environments, ranging from -40 to +125 degrees Celsius. The ADG623BRMZ is also RoHS compliant and extremely reliable, even under stringent testing conditions.

The working principle of the device is based on its logical integrated circuit design, which is used to control analog signal switch elements. As a monolithic CMOS device, the ADG623BRMZ is composed of two single-pole/double-throw (SPDT) switches, two sample and hold circuits, two driver stages and two gain stages in one package. Two CMOS switches are connected in series, each with its own driver and gain stage, with each connected to its own sample and hold circuit. The logic levels are then used to control the switching elements, as determined by the input signals supplied to the device logic. When a signal arrives at one of the switch inputs, it is sent through a series of driver and gain stages, and then to the sample and hold circuit. The value of the signal is then stored in the sample and hold circuit, which then triggers the switch to open or close, depending on the input values. As a result, the signal is accurately switched between channels, and the device is able to maintain a high level of signal integrity.

The ADG623BRMZ is an exceptionally fast and reliable device that is ideal for use in audio, test and measurement, and instrumentation systems. Its low power consumption and low on-resistance make it a great choice for applications requiring accurate signal switching between channels. Further, its CMOS logic levels enabled the device to accurately switch between input signals quickly, with minimal power consumption and high signal integrity. Hence, the ADG623BRMZ is a must-consider device for any circuit design requiring an analog switch.

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