MAX391EUE+

Switch Time (Ton, Toff) (Max):	130ns, 75ns
Base Part Number:	MAX391
Supplier Device Package:	16-TSSOP
Package / Case:	16-TSSOP (0.173", 4.40mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Crosstalk:	-85dB @ 1MHz
Current - Leakage (IS(off)) (Max):	100pA
Channel Capacitance (CS(off), CD(off)):	9pF, 9pF
Charge Injection:	2pC
-3db Bandwidth:	--
Series:	--
Voltage - Supply, Dual (V±):	±3 V ~ 8 V
Voltage - Supply, Single (V+):	3 V ~ 15 V
Channel-to-Channel Matching (ΔRon):	300 mOhm
On-State Resistance (Max):	35 Ohm
Number of Circuits:	4
Multiplexer/Demultiplexer Circuit:	1:1
Switch Circuit:	SPST - NC
Part Status:	Active
Packaging:	Tube

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IntroductionThe MAX391EU/MAX921EUE+ are integrated switches, multiplexers and demultiplexers. They provide a high-impedance, low-voltage logic-controlled switch, allowing voltage levels up to 30V to be switched without the need for external resistors. This makes them ideal for protection and signal multiplexing applications in a variety of different interfaces.Application fieldThe MAX391EU/MAX921EUE+ is designed for a variety of low-power, switching applications making them ideal for use in audio, communications and industrial applications. The MAX391EU/MAX921EUE+ offers multiplexing, enabling them to switch one signal to another without additional circuitry. It is also capable of selecting a single voltage rail from a number of selected sources, offering digital control and protection from high voltages (up to 30V). These switches can be used in a variety of applications from digital logic, automated instrumentation, power systems to lighting and multimedia digital signal routing.Working PrincipleThe MAX391EU/MAX921EUE+ allows for complete digital control over switching, providing digital control over signal multiplexing. These switches offer an TTL/CMOS compatible logic input signal, allowing for switching from one signal source to another with minimal delay. The low-voltage device is capable of operating a single voltage rail from a number of different sources, providing signal routing with digital control and protection. The switch is designed to prevent signal corruption due to incoming voltage transients, providing consistent signal transfer.ConclusionThe MAX391EU/MAX921EUE+ offers the flexibility and convenience of high-impedance, low-voltage logic controlled switching. The application range of these switches ranges from digital logic to automated instrumentation, video and multimedia signal control and power systems. By providing high-speed signal routing, multiplexing, as well as voltage levels up to 30V, these switches are designed to perform with dependable reliability every time. Thus, the MAX391EU/MAX921EUE+ can be used in a multitude of interface, analog switching, multiplexer and demultiplexer applications.

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