Spesifikasi
This is a dual 4-channel differential CMOS analog multiplexer produced by Vishay Siliconix, adopting break-before-make switching mechanism to avoid signal short-circuit between adjacent channels, suitable for multi-channel analog signal gating and data acquisition switching.
Part Number Definition
DG409 stands for dual independent 4-to-1 analog multiplexer core model. DQ represents 16-pin TSSOP surface mount package. T1 means tape-and-reel bulk packaging for automatic SMT placement. E3 indicates lead-free manufacturing and compliance with environmental restriction specifications.
Core Electrical Performance Parameters
The chip contains two groups of completely independent 4-channel single-pole four-throw switching circuits, supporting differential signal input and output switching. The maximum on-state resistance is 100Ω, with channel resistance matching error controlled within 15Ω to guarantee signal consistency among each channel. It works under single power supply ranging from 5V to 36V, and also supports dual symmetrical negative power supply mode. Typical charge injection is 20pC, switching transmission delay is 160ns, with ultra-low off-state leakage current to reduce signal distortion during standby. Address pins and enable pin fully match TTL logic level, and the global enable terminal can cut off all switch channels simultaneously for multi-chip cascading expansion. The internal latch-up prevention structure improves circuit stability under complex electromagnetic interference. Total power dissipation is limited to 600mW, with extremely low static power consumption ideal for battery-powered portable devices.
Packaging and Assembly Specifications
Package specification is 16-pin TSSOP with outline dimension 4.4mm×5.07mm, surface mount soldering installation. This device belongs to MSL1 moisture sensitive grade, with unlimited shelf life after vacuum package opening without mandatory time limit for reflow welding. Standard reel packaging is adopted to fit feeding requirements of fully automatic placement equipment on production lines.
Environmental and Compliance Standards
Operating temperature range covers -40℃ to +85℃, capable of stable operation in industrial measurement equipment, on-site monitoring terminals and medical electronic instruments. The whole product is lead-free and halogen-free, meeting universal international environmental protection standards. Compact patch packaging effectively reduces PCB layout occupation area and peripheral component quantity.
Bidang Aplikasi Umum
Multi-channel analog signal acquisition boards and industrial sensor data switching modules Audio equipment multi-channel signal routing and audio source selection circuits Automatic test equipment channel switching and circuit detection gating units Medical precision measuring instruments and portable analytical equipment signal selection Battery-powered field monitoring terminals and remote wired data collection nodes Instrument panel multi-parameter sampling switching and industrial control signal multiplexing circuits
LXB Semicon supplies original Vishay DG409DQ-T1-E3 dual differential 4-channel analog multiplexer IC
