DG403DY-E3

Switch Time (Ton, Toff) (Max):	150ns, 100ns
Base Part Number:	DG403
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Crosstalk:	-90dB @ 1MHz
Current - Leakage (IS(off)) (Max):	500pA
Channel Capacitance (CS(off), CD(off)):	12pF, 12pF
Charge Injection:	60pC
-3db Bandwidth:	--
Series:	--
Voltage - Supply, Dual (V±):	±5 V ~ 17 V
Voltage - Supply, Single (V+):	5 V ~ 34 V
Channel-to-Channel Matching (ΔRon):	3 Ohm
On-State Resistance (Max):	45 Ohm
Number of Circuits:	2
Multiplexer/Demultiplexer Circuit:	1:1
Switch Circuit:	SPST - NO/NC
Part Status:	Active
Packaging:	Tube

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Introduction

The DG403DY-E3 from Texas Instruments is an analog switch which provides two independent channels, each with two SPDT switches and an input range of up to 1MHz. It is available in DSBGA, SOIC and TSSOP packages. The device is designed for low-voltage operation and is ideal for switching high speed or sensitive signals.

Application Field

The DG403DY-E3 can be used in a variety of applications including signal routing, signal multiplexing, signal gating and data acquisition. It is also suitable for low-voltage, high-speed switching and has a wide range of applications in audio, telecommunications, automotive, automotive audio, and low-power embedded systems.

Working Principle

The device operates through the use of two independent channels, each with an input range of up to 1MHz. Each switch has an SPDT switch configuration and operates on a 50% duty cycle. Input voltages at the switch enable inputs (EN) to determine the ON/OFF switch state.The ON resistance of the switch is a function of the enable voltage. When the enable voltage is low, the switch is ON and the resistance is low. When the enable voltage is high, the switch is OFF and the resistance is high. The signal is routed to the enabled switch output based on the enable voltage. The signal pass-through of the switch is independent of the input voltage and the enable voltage. This feature allows the signal to remain uninterrupted on the switch regardless of the switch state.

Summary

The DG403DY-E3 from Texas Instruments is a two-channel analog switch that is designed for use in low-voltage, high-speed applications. It has an input range of up to 1MHz and is available in various package sizes to fit any application. Its SPDT switch configuration allows for signal routing, signal multiplexing, signal gating and data acquisition. The device operates on a 50% duty cycle and the signal pass through is independent of the enable voltage and input voltage.

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