DG409DQ-E3

Switch Time (Ton, Toff) (Max):	150ns, 150ns
Base Part Number:	DG409
Supplier Device Package:	16-TSSOP
Package / Case:	16-TSSOP (0.173", 4.40mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Crosstalk:	--
Current - Leakage (IS(off)) (Max):	500pA
Channel Capacitance (CS(off), CD(off)):	14pF, 25pF
Charge Injection:	20pC
-3db Bandwidth:	--
Series:	--
Voltage - Supply, Dual (V±):	±5 V ~ 20 V
Voltage - Supply, Single (V+):	5 V ~ 36 V
Channel-to-Channel Matching (ΔRon):	15 Ohm (Max)
On-State Resistance (Max):	100 Ohm
Number of Circuits:	2
Multiplexer/Demultiplexer Circuit:	4:1
Switch Circuit:	SP4T
Part Status:	Active
Packaging:	Tube

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IntroductionThe DG409DQ-E3 is an analog switch from the interface - analog switches, multiplexers, and demultiplexers family. It is a monolithic CMOS analog switch designed for use in single-pole, dual-throw (SPDT) and single-pole, single-throw (SPST) configurations. It is ideally suited for applications where low power consumption, low on-resistance, low charge injection, and fast switching speeds are desired.Application FieldThe DG409DQ-E3 is primarily designed for applications in the instrumentation, data acquisition, and communication markets. It is also found in medical equipment, test and measurement systems, automotive, industrial control, and consumer applications. The switch can be used in any application requiring low power consumption and fast switching capabilities.FeaturesThe DG409DQ-E3 is designed for a wide range of signal switching requirements. It features low static and dynamic on-resistance, low charge injection, wide signal bandwidth, excellent thermal stability, and fast switching speeds. The switch features 0.2µA leakage current with 0.8V signal swing, 4nA maximum charge injection, and 6ns turn-on/off time. Additionally, the switch provides low off-state leakage current, with 0.04µA (max) normally-open static leakage current and 0.2µA (max) biased static leakage current.Working PrincipleThe DG409DQ-E3 is a switch that operates by controlling the gate voltage of a MOSFET. By controlling the gate voltage, the on-resistance and switching speed of the switch can be controlled. The switch is designed to be operated with a logic signal, with a logic-low corresponding to the on state and a logic-high corresponding to the off state. The switch requires a single supply voltage for operation, with a typical supply voltage range of 3.0V to 15V. By changing the logic level supplied at the control input to the switch, the on/off state of the switch can be changed. When the control input is a logic-low, the gate voltage of the switch is controlled to a voltage level where the switch is “on”, and when the control input is a logic-high, the gate voltage is controlled to a voltage level where the switch is “off”. The switch features a back gate protection circuit that prevents undesired switching of the switch due to noise on the supply line.ConclusionThe DG409DQ-E3 is an analog switch used in a variety of applications. It offers low power consumption, low on-resistance, and low charge injection, with fast switching speeds. The feature set of this switch make it ideal for use in single-pole, dual-throw (SPDT) and single-pole single-throw (SPST) configurations. The switch is designed for operation with a logic signal and requires a single supply voltage for operation. The DG409DQ-E3 is a well-suited switch for applications requiring low power consumption and fast switching capabilities.

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