DG309DY-T1-E3

Switch Time (Ton, Toff) (Max):	200ns, 150ns
Base Part Number:	DG309
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Crosstalk:	-95dB @ 100kHz
Current - Leakage (IS(off)) (Max):	500pA
Channel Capacitance (CS(off), CD(off)):	5pF, 5pF
Charge Injection:	1pC
-3db Bandwidth:	--
Series:	--
Voltage - Supply, Dual (V±):	±4 V ~ 22 V
Voltage - Supply, Single (V+):	4 V ~ 44 V
Channel-to-Channel Matching (ΔRon):	1.7 Ohm
On-State Resistance (Max):	85 Ohm
Number of Circuits:	4
Multiplexer/Demultiplexer Circuit:	1:1
Switch Circuit:	SPST - NC
Part Status:	Active
Packaging:	Tape & Reel (TR)

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DG309DY-T1-E3 is an analog switch from Texas Instruments. It is a double pole double throw (DPDT) analog switch and multiplexer that can handle up to 300V and 8mA of current. It is a low voltage, single supply digital logic compatible switch/multiplexer. The switch has a break-before-make feature which allows it to switch between two signal lines without distorting the signals.The DG309DY-T1-E3 switch has two single pole double throw (SPDT) switches in the same package. This allows it to charge two signal lines instead of one at a time. It also provides a low on-state resistance of 0.2Ω. This makes the switch suitable for applications including switching high frequency signals, controlling large loads, and controlling multiple channels in switching power supplies.The DG309DY-T1-E3 is a digital logic compatible device and can be controlled using TTL/CMOS compatible logic inputs. The switch has an enable pin which can be used to enable/disable the pins. The enable pin is active low and the enable pin must be driven LOW to activate the switch.The DG309DY-T1-E3 is ideal for applications such as audio and video switching, power switching, and general purpose switching. It can also be used in multiplexer/demultiplexer applications, and for driving relay/solenoid loads.In terms of its working principle, the DG309DY-T1-E3 operates by controlling the flow of electric current through the switch. The current flow is controlled by two switches (a two pole on-off switch) that can be enabled and disabled individually. The two switches are called the “call” (or the switch side) and the “active” (or the signal side). When the switch is enabled, current flows from one signal line to the other, depending on the controlling logic. When the switch is disabled, the signal lines are disconnected, and no current flows.The DG309DY-T1-E3 is also available as an E2 version, which has a slightly different design, but operates according to the same principles. The E2 version uses a single pole double throw (SPDT) switch for each signal line, allowing for a simpler design. However, this version does not have the break-before-make feature of the E3 version.The DG309DY-T1-E3 is an ideal component for general purpose analog switching and multiplexer/demultiplexer applications. Its low on-state resistance and digital logic compatibility makes it suitable for applications such as audio and video switching, power switching, and driving relay/solenoid loads. It also provides a break-before-make feature which helps to eliminate signal distortion when switching between two signal lines.

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