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Vishay Siliconix DG409DQ-E3
- Part No.:
- DG409DQ-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DG409DQ-E3.pdf
- Description:
- IC SWITCH SP4TX2 100OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:530
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Product details
Overview
DG409DQ-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, ±20 V dual supply or +5 V to +36 V single supply operation, and 100 Ω typical on-resistance - used in precision data acquisition and audio routing systems.
For engineers reviewing the DG409DQ-E3 datasheet, DG409DQ-E3 pinout, DG409DQ-E3 application, or DG409DQ-E3 equivalent, this page delivers verified specifications including RDS(on) = 100 Ω, tTRANS = 160 ns, Q = 20 pC, ISUPPLY = 10 μA, and -75 dB off-isolation - critical for low-glitch, low-power, high-voltage analog signal switching designs.
Technical Context
The DG409DQ-E3 implements a CMOS-based dual 4:1 differential switch architecture with independent channel enable (EN) and address decoding logic. Its break-before-make timing (tOPEN ≥ 10 ns) prevents momentary crosstalk between adjacent differential channels, while TTL-compatible inputs (VINH ≥ 2.4 V, VINL ≤ 0.8 V) ensure robust interfacing with microcontrollers and FPGAs across -40 °C to +85 °C.
Designed in a 44 V silicon-gate CMOS process with epitaxial latchup protection, it supports rail-to-rail analog signal handling up to ±20 V (dual) or +36 V (single), with guaranteed 125 Ω max RDS(on), <5 nA max leakage at full temperature range, and 1 kΩ load-dependent off-isolation of -75 dB at 1 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(on) | 100 Ω typical, 125 Ω max - ensures minimal signal attenuation and voltage drop in precision analog paths |
| Charge injection | 20 pC - limits glitch amplitude in sampled-data systems using capacitive hold circuits |
| Transition time | 160 ns - enables reliable switching in >1 MHz multiplexed data acquisition | Supply range | +5 V to +36 V single or ±5 V to ±20 V dual - supports wide industrial and battery-powered operating conditions |
| Off-isolation | -75 dB at 1 MHz - suppresses crosstalk between inactive differential channels |
| Leakage current | ±5 nA max at full temperature - preserves accuracy in high-impedance sensor interfaces |
| Enable timing | tON(EN) = 150 ns max, tOFF(EN) = 150 ns max - allows synchronized global reset across stacked devices |
Pinout & Package
TSSOP-16 package: 5.0 mm × 4.4 mm × 1.2 mm body, 0.65 mm pitch, lead (Pb)-free and RoHS-compliant per -E3 suffix.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 13, 14, 15, 16 | Differential source inputs (S1a–S4a, S1b–S4b) | Accept complementary analog signals; each pair routed together to preserve differential integrity |
| 5, 6 | Differential outputs (Da, Db) | Deliver selected differential pair; symmetric layout minimizes skew and common-mode imbalance |
| 7, 8 | Address inputs (A0, A1) | 2-bit binary select: 00→S1, 01→S2, 10→S3, 11→S4 - TTL-compatible, no external pull-ups required |
| 9 | Enable (EN) | Active-high global disable; forces all switches OFF - essential for stacking and power sequencing |
| 10 | GND | Analog/digital reference common; must be low-impedance to minimize noise coupling into differential paths |
| 11, 12 | Supply rails (V+, V-) | Support bipolar or unipolar operation; V+ can be up to +36 V, V- down to -25 V relative to GND |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed tOPEN ≥ 10 ns prevents transient shorting between differential channels during address changes |
| Dual-supply rail-to-rail operation | Handles analog signals from V- to V+ without clipping - critical for ±10 V sensor front-ends |
| Low charge injection (20 pC) | Reduces sampling error in ADC-driven systems using external hold capacitors |
| TTL-compatible control inputs | Direct interface with 3.3 V/5 V logic without level shifters - simplifies FPGA/microcontroller integration |
| Epitaxial latchup protection | Immune to destructive latchup under overvoltage or ESD stress - enhances field reliability |
Applications
| Medical Instrumentation | Data Acquisition Systems |
|---|---|
Use Scenario: Multiplexing multiple ECG electrode pairs into a single differential ADC channel for portable patient monitors. IC Role / Device Role / Timing Role: Dual 4:1 differential switch providing matched gain/phase paths with <150 ns enable timing for synchronized channel scanning. Use Value: Maintains common-mode rejection ratio (CMRR) >80 dB across all 4 channels due to matched RDS(on) (ΔR ≤ 15 Ω) and low crosstalk (-75 dB). | Use Scenario: Routing 8-channel thermocouple or strain gauge outputs to a shared precision instrumentation amplifier in automated test equipment. IC Role / Device Role / Timing Role: High-voltage analog multiplexer enabling ±15 V sensor signal routing with break-before-make to prevent cross-channel contamination. Use Value: Enables 16-bit measurement accuracy via 100 Ω RDS(on) matching and <5 nA leakage - minimizing offset drift in high-Z bridges. |
| Audio Signal Routing | Battery-Powered Test Equipment |
Use Scenario: Switching balanced line-level audio inputs (XLR/TRS) between multiple DSP processing paths in studio hardware. IC Role / Device Role / Timing Role: Differential analog switch preserving signal symmetry and rejecting ground-loop noise across 4 input sources. Use Value: Delivers <100 μV RMS crosstalk at 20 kHz due to -75 dB off-isolation and matched Sx/Sy capacitance (CS(off) = 3 pF). | Use Scenario: Low-power multiplexing of pH, conductivity, and dissolved oxygen sensor outputs in handheld environmental analyzers. IC Role / Device Role / Timing Role: Ultra-low-quiescent-current analog switch (ISUPPLY = 10 μA) enabling multi-week battery life with periodic sensor polling. Use Value: Reduces system standby power by >95% vs. discrete MOSFET solutions while maintaining 16-bit resolution via low RDS(on) tempco. |
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 |
|---|---|---|---|
| MAX4679ETP+ | 16-pin TQFN, 45 Ω RDS(on), 10 pC charge injection, -40 °C to +85 °C | Lower on-resistance and charge injection, but only supports ±5 V dual supply (no +36 V single supply) | Preferred for ultra-low-distortion audio where supply headroom is limited to ±5 V |
| ADG1409BRUZ | 16-pin TSSOP, 4.7 Ω RDS(on), 23 pC charge injection, -40 °C to +125 °C | Far lower RDS(on) and extended temperature range, but higher supply current (200 μA) and cost | Chosen when sub-10 mΩ channel matching and automotive-grade temp range are mandatory |
Compared with DG409DQ-E3, MAX4679ETP+ offers better signal fidelity at lower voltages but sacrifices supply flexibility, while ADG1409BRUZ delivers superior on-resistance and temperature resilience at higher quiescent power and BOM cost - making DG409DQ-E3 optimal for cost-sensitive industrial DAQ with wide supply adaptability.
Availability
DG409DQ-E3 is available at Aetrix Electronics and suitable for medical instrumentation, data acquisition systems, and battery-powered test equipment requiring stable component supply with long-term lifecycle support.
Supply support for DG409DQ-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 and automotive markets.
The DG409 product line targets high-performance analog signal routing in harsh environments, emphasizing rail-to-rail operation, latchup immunity, and low-glitch switching for instrumentation and test systems.
FAQ
What is the maximum supply voltage rating for DG409DQ-E3?
The DG409DQ-E3 has an absolute maximum V+ to V− rating of 44 V, with operational dual-supply range up to ±20 V and single-supply range up to +36 V. Exceeding these limits risks permanent damage; internal clamping diodes limit forward current to 20 mA. Always observe derating above 75 °C (7.6 mW/°C for TSSOP).
Does DG409DQ-E3 support single-supply operation with ground-referenced signals?
Yes, DG409DQ-E3 supports true single-supply operation from +5 V to +36 V with V− tied to GND. In this configuration, analog signals can swing from 0 V to V+, and the device maintains 100 Ω typical RDS(on), 180 ns transition time, and <5 nA leakage - validated per single-supply specs in the datasheet (V+ = 12 V, V− = 0 V).
How does the break-before-make feature work in DG409DQ-E3?
DG409DQ-E3 guarantees a minimum break interval (tOPEN ≥ 10 ns) between deactivation of one differential channel and activation of the next during address changes. This prevents momentary shorts between Sx/Sy pairs, eliminating crosstalk-induced glitches - confirmed by Fig. 4 test circuit and specified across -40 °C to +85 °C.
What is the thermal performance of DG409DQ-E3 in TSSOP-16 package?
In TSSOP-16, DG409DQ-E3 has a maximum power dissipation of 600 mW at 25 °C, derated linearly at 7.6 mW/°C above 75 °C. Junction-to-ambient thermal resistance (θJA) is ~167 °C/W. For continuous operation at +85 °C ambient, total power must remain below ~520 mW to keep junction temperature ≤125 °C.
Can DG409DQ-E3 be used in overvoltage-protected circuits?
Yes - DG409DQ-E3 tolerates analog signals exceeding V+ or V− via internal clamping diodes (per Note a). For robust overvoltage protection, Vishay recommends adding series 1N4148 diodes on V+ and V− pins (Fig. 10), which float the supply rails while preserving low RDS(on) and leakage - extending safe analog range to (V− −1 V) to (V+ +1 V).
DG409DQ-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- 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+):
- 5V ~ 36V
- Voltage - Supply, Dual (V±):
- ±5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 150ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 20pC
- Channel Capacitance (CS(off), CD(off)):
- 14pF, 25pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
DG409DQ-E3 FAQ
1.How can I place an order for DG409DQ-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG409DQ-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 DG409DQ-E3 reliable?
The price and inventory of DG409DQ-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG409DQ-E3 is usually 5 days.
3.What payment methods are accepted for DG409DQ-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG409DQ-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG409DQ-E3?
DG409DQ-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG409DQ-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 DG409DQ-E3?
For technical support, including DG409DQ-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG409DQ-E3 requirements.
6.How does Aetrix verify that DG409DQ-E3 is sourced from the original manufacturer or authorized distributors?
All DG409DQ-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 DG409DQ-E3 meets industry standards.
7.What is the process for return or replacement of DG409DQ-E3?
All DG409DQ-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG409DQ-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 DG409DQ-E3 part is unused and in its original packaging.
Return procedure for DG409DQ-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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