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Home > Products > Integrated Circuits (ICs) > Interface > Analog Switches, Multiplexers, Demultiplexers

Vishay Siliconix DG409DJ-E3

Name: DG409DJ-E3
Brand: Vishay Siliconix
SKU: DG409DJ-E3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DG409DJ-E3

Manufacturer:: Vishay Siliconix

Category:: Analog Switches, Multiplexers, Demultiplexers

Package:: 16-DIP (0.300", 7.62mm)

Datasheet:: DG409DJ-E3.pdf

Description:: IC SWITCH SP4T X 2 100OHM 16DIP

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Product details

Overview

DG409DJ-E3 from Vishay Siliconix is a dual 4-channel differential analog multiplexer IC designed to route one of four differential input pairs (S1a/S1b through S4a/S4b) to a common dual output (Da/Db) under 2-bit binary address control (A0, A1), with break-before-make switching and TTL-compatible enable (EN). It delivers 100 Ω on-resistance, 20 pC charge injection, and operates from ±5 V to ±20 V dual supplies or +5 V to +36 V single supply - ideal for precision data acquisition and audio routing in battery-powered instrumentation.

For engineers reviewing the DG409DJ-E3 datasheet, DG409DJ-E3 pinout, DG409DJ-E3 application, or DG409DJ-E3 equivalent, key selection criteria include its differential channel architecture, guaranteed 125 Ω max R_DS(on) over temperature, -75 dB off-isolation at 1 MHz, and compatibility with industrial-grade 16-pin plastic DIP packaging for through-hole prototyping and legacy system upgrades.

Technical Context

The DG409DJ-E3 implements a CMOS decoder/driver with level-shifting circuitry to support rail-to-rail analog signal handling across ±20 V dual or +36 V single supplies. Its epitaxial silicon-gate process ensures latchup immunity and extends absolute maximum voltage rating to 44 V between V+ and V−.

Each of the two independent 4:1 differential sections features break-before-make switching (≥10 ns t_OPEN), TTL-compatible digital inputs (V_IL ≤ 0.8 V, V_IH ≥ 2.4 V), and enables stacking via EN pin - allowing synchronized shutdown of multiple devices without crosstalk.

Key Specifications

Parameter	Value and Actual Design Meaning
R_DS(on)	100 Ω typical, 125 Ω max at full temperature range - ensures minimal signal attenuation and gain error in precision sensor interfaces.
Charge injection	20 pC typical - limits voltage glitch on high-impedance nodes (e.g., sample-and-hold capacitors), preserving ADC accuracy.
Transition time	160 ns typical - supports >1 MHz multiplexed signal throughput in high-speed data acquisition systems.
Off-isolation (OIRR)	-75 dB at 1 MHz - suppresses crosstalk between inactive differential channels, critical for multi-sensor ECG or audio mixing.
Supply range	±5 V to ±20 V dual or +5 V to +36 V single - enables operation in both bipolar instrumentation and unipolar portable medical devices.
Leakage current	±5 nA max (full temp) - maintains signal integrity in nanoamp-level biopotential measurements.
Enable timing	t_ON(EN) = 150 ns max, t_OFF(EN) = 150 ns max - allows fast power-gating without disrupting adjacent channel settling.

Pinout & Package

Package: 16-pin plastic DIP (JEDEC MS-012), 0.300″ wide body, through-hole mount. Pin pitch: 0.100″ (2.54 mm); row spacing: 0.300″ (7.62 mm).

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4, 5, 6, 7, 8	S1a, S2a, S3a, S4a, S1b, S2b, S3b, S4b	Differential source inputs - each pair (e.g., S1a/S1b) forms one selectable differential channel; bidirectional conduction.
9	A0	LSB address input - selects channel 1–4 in conjunction with A1; TTL-compatible, referenced to GND.
10	A1	MSB address input - completes 2-bit binary selection (00–11) for active differential channel.
11	EN	Active-high enable - forces all switches OFF when low; enables cascading and power sequencing.
12	GND	Digital ground reference - decoupling required near pin for stable logic thresholds and noise immunity.
13	V−	Negative supply rail - must be ≤ V+ − 44 V; clamps analog signals exceeding rails via internal diodes.
14	V+	Positive supply rail - supports up to +36 V single or ±20 V dual; epitaxial layer prevents latchup.
15, 16	Da, Db	Differential output terminals - deliver selected Sxa/Sxb pair; matched impedance critical for balanced signal integrity.

Key Features

Feature	Design Value
Dual independent 4:1 differential mux	Enables simultaneous routing of two isolated differential signal paths (e.g., stereo audio or dual-sensor front-end) without shared switch resistance.
Break-before-make switching	Guarantees ≥10 ns isolation gap between channel transitions - eliminates momentary short-circuits in sensitive transducer interfaces.
Single-supply capability	Operates from +5 V to +36 V - simplifies power design in portable equipment by eliminating negative rail generation.
TTL-compatible control	Logic thresholds (0.8 V/2.4 V) ensure direct interfacing with microcontrollers and FPGAs without level-shifting.
44 V absolute max rating	Withstands transient overvoltage events up to 44 V between V+ and V− - enhances robustness in industrial I/O modules.

Applications

Medical Instrumentation	Audio Signal Routing
Use Scenario: Multiplexing ECG electrode pairs in 12-lead portable monitors with isolated front-end amplifiers. IC Role / Device Role / Timing Role: Differential analog multiplexer selecting one of four patient lead configurations per acquisition cycle. Use Value: 20 pC charge injection minimizes baseline shift during lead switching; -75 dB off-isolation prevents cross-talk between limb leads.	Use Scenario: Routing balanced line-level audio signals between multiple sources (mic preamps, DACs) and outputs (headphone amps, ADCs). IC Role / Device Role / Timing Role: Dual differential switch enabling stereo channel selection without breaking common-mode rejection. Use Value: Matched R_DS(on) (≤15 Ω channel-to-channel) preserves amplitude balance; 160 ns transition supports 48 kHz sampling.
Data Acquisition Systems	Battery-Powered Test Equipment
Use Scenario: Scanning thermocouple or strain gauge bridges in automated test equipment with cold-junction compensation. IC Role / Device Role / Timing Role: High-precision analog switch isolating measurement channels before ADC sampling. Use Value: 100 Ω R_DS(on) and ±5 nA leakage maintain <0.1% gain error and <1 μV offset drift over temperature.	Use Scenario: Power management in handheld multimeters where analog front-end channels are dynamically enabled based on measurement mode. IC Role / Device Role / Timing Role: Low-quiescent-current (10 μA) multiplexer enabling selective channel activation to extend battery life. Use Value: 10 μA supply current reduces standby power; single-supply +9 V operation eliminates need for charge pumps.

Medical Instrumentation

Audio Signal Routing

Use Scenario: Multiplexing ECG electrode pairs in 12-lead portable monitors with isolated front-end amplifiers.

IC Role / Device Role / Timing Role: Differential analog multiplexer selecting one of four patient lead configurations per acquisition cycle.

Use Value: 20 pC charge injection minimizes baseline shift during lead switching; -75 dB off-isolation prevents cross-talk between limb leads.

Use Scenario: Routing balanced line-level audio signals between multiple sources (mic preamps, DACs) and outputs (headphone amps, ADCs).

IC Role / Device Role / Timing Role: Dual differential switch enabling stereo channel selection without breaking common-mode rejection.

Use Value: Matched R_DS(on) (≤15 Ω channel-to-channel) preserves amplitude balance; 160 ns transition supports 48 kHz sampling.

Data Acquisition Systems

Battery-Powered Test Equipment

Use Scenario: Scanning thermocouple or strain gauge bridges in automated test equipment with cold-junction compensation.

IC Role / Device Role / Timing Role: High-precision analog switch isolating measurement channels before ADC sampling.

Use Value: 100 Ω R_DS(on) and ±5 nA leakage maintain <0.1% gain error and <1 μV offset drift over temperature.

Use Scenario: Power management in handheld multimeters where analog front-end channels are dynamically enabled based on measurement mode.

IC Role / Device Role / Timing Role: Low-quiescent-current (10 μA) multiplexer enabling selective channel activation to extend battery life.

Use Value: 10 μA supply current reduces standby power; single-supply +9 V operation eliminates need for charge pumps.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual differential analog multiplexer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX4679EPP+	Higher R_DS(on) (180 Ω typ), lower supply voltage range (±5 V only), no single-supply support.	Better ESD rating (±4 kV HBM), but unsuitable for +24 V industrial sensors.	Prefer DG409DJ-E3 for wide supply flexibility and lower on-resistance in precision measurement.
ADG1409BRUZ	Lower R_DS(on) (4.7 Ω typ), higher cost, TSSOP-16 package only - no DIP option.	Superior bandwidth (>180 MHz) and lower charge injection (3 pC), but requires PCB redesign for surface-mount.	Choose DG409DJ-E3 for through-hole compatibility, cost-sensitive designs, and legacy system replacement.

Compared with MAX4679EPP+ and ADG1409BRUZ, the DG409DJ-E3 uniquely balances wide supply range (+5 V to +36 V), DIP packaging for prototyping, and sub-125 Ω guaranteed R_DS(on), making it optimal for industrial and medical equipment where layout stability and voltage headroom are prioritized over ultra-low on-resistance.

Availability

DG409DJ-E3 is available at Aetrix Electronics and suitable for medical instrumentation, audio routing, data acquisition systems, and battery-powered test equipment requiring stable component supply with long-term obsolescence planning.

Supply support for DG409DJ-E3 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Vishay Siliconix is a global leader in discrete semiconductors and passive components, specializing in high-reliability analog switches, MOSFETs, and precision resistors for industrial, automotive, and medical markets.

The DG409DJ-E3 belongs to Vishay's high-performance CMOS analog multiplexer family, engineered for precision signal routing in environments demanding low leakage, rail-to-rail operation, and latchup immunity - especially where differential signaling and legacy through-hole assembly are required.

FAQ

What is the maximum supply voltage rating for DG409DJ-E3?

The DG409DJ-E3 has an absolute maximum voltage rating of 44 V between V+ and V− pins. It supports dual supplies from ±5 V to ±20 V or single supply from +5 V to +36 V. Exceeding these limits risks permanent damage, and operation above 44 V differential violates the absolute maximum rating regardless of individual rail values.

Does DG409DJ-E3 support single-supply operation with ground-referenced analog signals?

Yes, DG409DJ-E3 supports true single-supply operation with V− tied to GND. In this configuration, analog signals must remain within 0 V to V+ − 1 V due to internal clamp diode forward drop. The device maintains 100 Ω typical R_DS(on) and 20 pC charge injection under +12 V single-supply conditions per datasheet specifications.

How does the break-before-make feature function in DG409DJ-E3?

The DG409DJ-E3 guarantees a minimum 10 ns break interval (t_OPEN) between deactivation of one differential channel and activation of the next, preventing momentary shorts during address transitions. This behavior is inherent to the internal decoder/driver design and requires no external timing control - critical for avoiding transients in sensor front-ends.

Can DG409DJ-E3 be used in differential ADC driver applications?

Yes, DG409DJ-E3 is well-suited for differential ADC driver applications where matched channel resistance and low charge injection are essential. Its dual 4:1 differential architecture routes full differential pairs directly to ADC inputs, and its ≤15 Ω R_DS(on) matching ensures common-mode rejection ratio (CMRR) degradation remains below 0.01% at 1 kHz.

What is the thermal derating specification for DG409DJ-E3 in plastic DIP package?

For the DG409DJ-E3 in 16-pin plastic DIP (DJ suffix), power dissipation must be derated by 6 mW/°C above +75 °C ambient. At +125 °C, maximum allowable power drops to 150 mW from the rated 450 mW at +75 °C. Adequate board-level copper area and airflow are recommended for sustained operation near thermal limits.

DG409DJ-E3 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay Siliconix

Series:: -

Packaging:: Tube

Product Status:: Last Time Buy

Switch Circuit:: SP4T

Multiplexer/Demultiplexer Circuit:: 4:1

Number of Circuits:: 2

On-State Resistance (Max):: 100Ohm

Channel-to-Channel Matching (ΔRon):: 15Ohm (Max)

Voltage - Supply, Single (V+):: 13V ~ 44V

Voltage - Supply, Dual (V±):: ±5V ~ 20V

Switch Time (Ton, Toff) (Max):: 150ns, 150ns

-3db Bandwidth:: -

Charge Injection:: 20pC

Channel Capacitance (CS(off), CD(off)):: 3pF, 14pF

Current - Leakage (IS(off)) (Max):: 500pA

Crosstalk:: -

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: 16-PDIP

DG409DJ-E3 FAQ

1.How can I place an order for DG409DJ-E3 through Aetrix?

Please submit a Request for Quotation (RFQ) for DG409DJ-E3 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for DG409DJ-E3 reliable?

The price and inventory of DG409DJ-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG409DJ-E3 is usually 5 days.

3.What payment methods are accepted for DG409DJ-E3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG409DJ-E3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DG409DJ-E3?

DG409DJ-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DG409DJ-E3 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for DG409DJ-E3?

For technical support, including DG409DJ-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG409DJ-E3 requirements.

6.How does Aetrix verify that DG409DJ-E3 is sourced from the original manufacturer or authorized distributors?

All DG409DJ-E3 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DG409DJ-E3 meets industry standards.

7.What is the process for return or replacement of DG409DJ-E3?

All DG409DJ-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG409DJ-E3, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The DG409DJ-E3 part is unused and in its original packaging.

Return procedure for DG409DJ-E3:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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