Analog Devices Inc. ADG221KN 4 Circuit IC Switch - Versatile Analog Switching Solution

The Analog Devices Inc. ADG221KN is a 4 circuit IC switch designed to provide versatile analog switching capabilities. It falls under the category of analog switches, multiplexers, and demultiplexers. Featuring a single-pole, single-throw normally closed (SPST-NC) switch circuit, the ADG221KN is suitable for applications where the switch is normally closed and opens when activated. The ADG221KN offers four independent circuits, allowing for simultaneous switching of multiple channels. Its compact 16-PDIP package provides convenience and ease of use in through-hole mounting applications.

ADG221KN 4 Circuit IC Switch by Analog Devices Inc. - Reliable and Efficient Analog Switching

With a maximum on-state resistance of 90Ohm, the ADG221KN minimizes signal losses during switching. It also offers excellent channel-to-channel resistance matching, with a delta Ron (ΔRon) of 4.5Ohm, ensuring consistent performance across all channels. The ADG221KN operates with a single supply voltage (V+) of 15V and can also accommodate dual supply voltages (V±) of ±15V, providing flexibility in power supply configurations. Featuring fast switching times, the ADG221KN has a maximum turn-on time (Ton) of 350ns and turn-off time (Toff) of 250ns, allowing for efficient switching in time-critical applications. With a low charge injection of 20pC, the ADG221KN minimizes the introduction of additional charge during switching, ensuring accurate signal transmission.

The switch's channel capacitance includes an off-state capacitance (CS(off)) and an on-state capacitance (CD(off)) of 5pF each, providing appropriate capacitive loads for driving circuits. Operating reliably within a temperature range of -40°C to 85°C (TA), the ADG221KN can withstand varying environmental conditions. Its 16-DIP (0.300", 7.62mm) package allows for secure and reliable through-hole mounting. Please note that the ADG221KN is an obsolete product, meaning it is no longer actively manufactured. However, it might still be available from some distributors or in the secondary market.

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