ADG1438BRUZ

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ADG1438BRUZ is an integrated circuit that belongs to a family of analog switches, multiplexers, and demultiplexers, enabling the user to interface different signals in their project.

The ADG1438BRUZ is a low on-resistance analog switch designed to operate from a single +3 V to +5.5 V supply with up to eight high-bandwidth switches. Each switch features low on-resistance (less than 0.5 Ω), excellent on-resistance matching, and low crosstalk. The digital control logic levels are 1.8 V logic compatible for interfacing directly to modern digital signal processing chipsets. The parts are housed in a space-saving and lead-free, 8-lead MSOP package.

The ADG1438BRUZ is ideal for use in applications such as analog to digital converter (ADC) and digital to analog converter (DAC) muxing, buffer control, and multiplexing applications, such as in central processing units (CPUs), memory system control, and voltage detection applications. This device is fully specified over the commercial temperature range, 0°C to +70°C.

The working principle of the ADG1438BRUZ is based on analog switches, multiplexers and demultiplexers. Each switch consists of an interconnected number of circuit elements and are connected to form an integrated circuit with a combination of switches and control logic. The input signals are routed to the output by selecting one of the switches, which is achieved by the two digital control inputs D0 and D1. When D0 and D1 are both logic high, S0 is selected and its output is routed to the OUT terminal. Similarly, when D0 and D1 are both logic low, S1 is selected and its output is routed to the OUT terminal.

In addition, the multiplexer control logic includes three series of latches for the D0, D1, and D2 control inputs. These latches allow the control logic to update the state of the devices without the need for an explicit store signal. The part is factory-programmed to operate in either a single-channel or double-channel mode. In single-channel mode, the part acts like a single 5- or 6-channel multiplexer/switch depending on the value of the D2 input. In double-channel mode, it acts as two separate 5- or 6-channel multiplexers/switches.

The ADG1438BRUZ offers excellent signal integrity and power supply noise immunity with its ESD protection diodes on the analog switching path and integrated clamp diodes on the digital control inputs. The ESD diodes support up to 10 kV of Human Body Model (HBM) ESD without performance degradation. Furthermore, this device features a fast power-on-reset function to ensure glitch-free transitions.

In conclusion, the ADG1438BRUZ is a versatile and high-performance analog switch, multiplexer and demultiplexer device suitable for a range of different applications, from digital signal processing to voltage detection. This device is well-suited for integration into modern processors, memory systems, and other related devices.

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