ADG442BNZ

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ADG442BNZ is a general purpose single-pole double-throw (SPDT) analog switch for use in analog signal-routing applications. It is characterized with a break-before‑make switching action and high signal integrity. It can be used to route signals of various levels including 0 V to 5 V, 0 V to 10 V, and -10 V to 10 V. The ADG442BNZ is available in a 14-lead wide-body Flatpack package requiring low power and featuring TTL/CMOS compatible control voltage levels.

Application

The ADG442BNZ is used in a variety of signal routing and multiplexing applications. It is an ideal choice for low-power systems and for those applications that require minimal signal distortion. It finds applications in audio switching, analog signal routing, remote sensing, and servo control.

Working principle

The ADG442BNZ utilizes a switching action based on the break-before-make principle that consists of a single armature actuated by a monolithic electrostatic transducer. This design ensures low switching noise and low delayed turn-off time. It exhibits low capacitive coupling from one side of the switch to the other when the switch is in the open position. Additionally, it maintains high isolation between the switch terminals when the switch is in the open position. The ADG442BNZ can handle both AC and DC signals.

The ADG442BNZ supports logic control voltage levels in the range of 0 V to 5 V. It provides a differential switch-control input with a guaranteed switching threshold of 2 V. Additionally, it provides a logic-controlled shutdown feature that allows the user to disable the switch by applying a logic “1” on the Shutdown pin.

The on-resistance of the switch is relatively low and is specified to be less than 10 ohms. It also ensures a low input-bias current, less than 100 nA, for the inputs. In addition, the switch offers low leakage current when in the open state with the dynamic resistance of greater than 1 x 10^12 ohms.

The ADG442BNZ is an ideal choice for applications that require high signal integrity, wide operating voltage range, low on-resistance, and low power consumption. Its TTL/CMOS compatible control voltage level and low-power drain make it particularly suitable for low-power systems.

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