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Vishay Siliconix DG409DQ-T1-E3
- Part No.:
- DG409DQ-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DG409DQ-T1-E3.pdf
- Description:
- IC SWITCH SP4TX2 100OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:9,556
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Product details
Overview
DG409DQ-T1-E3 from Vishay Siliconix is a dual 4-channel differential analog multiplexer 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 TTL-compatible enable (EN) and break-before-make switching. 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 audio routing and battery-powered data acquisition.
For engineers reviewing the DG409DQ-T1-E3 datasheet, DG409DQ-T1-E3 pinout, DG409DQ-T1-E3 application, or DG409DQ-T1-E3 equivalent, key selection criteria include differential channel isolation (-75 dB off-isolation at 1 MHz), low leakage (<5 nA off-state), fast transition time (160 ns), and TSSOP-16 RoHS-compliant packaging suitable for high-density PCB layouts.
Technical Context
The DG409DQ-T1-E3 implements a CMOS decoder/driver architecture with level-shifted control logic, enabling full rail-to-rail analog signal handling up to ±20 V while maintaining TTL-compatible digital inputs (VINL ≤ 0.8 V, VINH ≥ 2.4 V). Its epitaxial silicon-gate process ensures latchup immunity and supports 44 V absolute maximum supply rating.
Break-before-make switching prevents momentary crosstalk between adjacent differential channels, and the EN pin provides global reset to force all switches OFF - critical for stacking multiple DG409 devices in multichannel systems without signal contention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Configuration | Dual 4:1 differential analog multiplexer - routes one of four matched differential input pairs to common differential output |
| On-resistance (RDS(on)) | 100 Ω max at ±15 V - ensures minimal signal attenuation and gain error in precision instrumentation paths |
| Charge injection | 20 pC typical - limits voltage glitch on high-impedance nodes (e.g., sample-and-hold capacitors) |
| Transition time | 160 ns max - enables reliable switching at >1 MHz data rates in high-speed acquisition |
| Off-isolation (OIRR) | -75 dB min at 1 MHz - suppresses crosstalk between inactive differential channels |
| Supply range | Single: +5 V to +36 V; Dual: ±5 V to ±20 V - supports wide-range industrial and medical power architectures |
| Leakage current (off) | ±5 nA max over -40 °C to +85 °C - preserves accuracy in µA-level sensor front-ends |
Pinout & Package
TSSOP-16 package (JEDEC MO-153, 5.0 mm × 4.4 mm × 1.2 mm), RoHS-compliant, lead (Pb)-free finish (-E3), tape-and-reel (-T1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 13, 14, 15, 16 |
S1a–S4a / S1b–S4b | Differential source terminals - each pair (e.g., S1a/S1b) forms one selectable differential input channel |
| 5, 6 | Da, Db | Differential drain outputs - common destination for selected input pair; bidirectional conduction |
| 7, 8 | A0, A1 | 2-bit binary address inputs - select channel 1–4 (00–11); TTL-compatible thresholds (0.8 V/2.4 V) |
| 9 | EN | Enable input - logic low disables all switches; active-high enables channel selection |
| 10 | GND | Analog/digital ground reference - must be low-impedance return path for signal and control currents |
| 11, 12 | V−, V+ | Negative and positive supply rails - support symmetric dual or asymmetric single-supply operation |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guarantees no overlap during channel transitions - eliminates transient short-circuits in differential signal paths |
| 44 V absolute max supply rating | Enables robust operation in industrial environments with transient overvoltage exposure |
| Epitaxial latchup immunity | Prevents destructive latchup under overvoltage or ESD stress - critical for field-deployed equipment |
| Low 10 μA supply current | Reduces quiescent power in battery-operated portable instruments and remote sensors |
| Single-supply capability | Supports +5 V to +36 V operation - simplifies power design in mixed-signal systems without negative rails |
Applications
| Audio Signal Routing | Data Acquisition Systems |
|---|---|
|
Use Scenario: Switching between multiple differential microphone or line-level inputs in a professional audio mixer. IC Role / Device Role / Timing Role: Differential analog multiplexer selecting one of four balanced inputs to ADC input stage. Use Value: Maintains common-mode rejection (>75 dB) and low THD due to matched RDS(on) and low charge injection. |
Use Scenario: Multiplexing sensor signals (e.g., thermocouples, strain gauges) into a single high-resolution sigma-delta ADC. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sampling of 4 differential sensor bridges. Use Value: Sub-5 nA off-leakage preserves µV-level signal integrity; 100 Ω RDS(on) minimizes gain error in PGA front-end. |
| Battery-Powered Instrumentation | Medical Patient Monitoring |
|
Use Scenario: Portable ECG or EEG device requiring low-power, rail-to-rail analog switching across multiple electrode pairs. IC Role / Device Role / Timing Role: Low-quiescent-current multiplexer routing differential biopotential signals to analog front-end. Use Value: 10 μA ISUPPLY extends battery life; ±20 V dual-supply operation supports high-gain, low-noise amplification. |
Use Scenario: Multi-parameter patient monitor aggregating differential SpO₂, respiration, and impedance plethysmography channels. IC Role / Device Role / Timing Role: Medical-grade analog switch meeting IEC 60601 creepage/clearance requirements via isolated layout and low leakage. Use Value: <5 nA off-leakage meets safety-critical leakage limits; RoHS-compliant -E3 finish satisfies medical regulatory compliance. |
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, 60 Ω RDS(on), 10 pC charge injection, −40 °C to +85 °C | Higher bandwidth (300 MHz −3 dB), lower on-resistance - better for RF/mixed-signal test equipment | Select MAX4679ETP+ when lower on-resistance and higher frequency response are required; verify layout compatibility with TQFN thermal pad. |
| ADG1409YRUZ | 16-pin TSSOP, 4.7 Ω RDS(on), 25 pC charge injection, −40 °C to +125 °C | Lower on-resistance but higher charge injection; extended temperature range - suited for automotive engine control units | Select ADG1409YRUZ for high-temperature environments (>85 °C); accept higher charge injection if system includes downstream glitch filtering. |
Compared with DG409DQ-T1-E3, MAX4679ETP+ offers superior bandwidth and lower resistance but requires different PCB footprint and thermal management, while ADG1409YRUZ trades higher leakage and charge injection for extended temperature operation and ultra-low RDS(on) - making each suitable for distinct performance vs. environmental trade-offs.
Availability
DG409DQ-T1-E3 is available at Aetrix Electronics and suitable for audio signal routing, battery-powered instrumentation, and medical patient monitoring requiring stable component supply, RoHS-compliant packaging, and long-term production continuity.
Supply support for DG409DQ-T1-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 designs high-performance analog switches, MOSFETs, and discrete semiconductors using advanced silicon-gate CMOS processes, with emphasis on reliability, low power, and ruggedness for industrial and medical markets.
The DG409DQ-T1-E3 belongs to Vishay's high-performance analog multiplexer product line, engineered for precision differential signal routing in data acquisition, instrumentation, and portable healthcare devices where low leakage, low distortion, and rail-to-rail operation are essential.
FAQ
What is the maximum supply voltage rating for DG409DQ-T1-E3?
The DG409DQ-T1-E3 has an absolute maximum supply rating of 44 V between V+ and V− pins. This allows operation up to ±20 V dual supply or +36 V single supply while maintaining guaranteed performance within datasheet specifications. Exceeding this rating risks permanent damage, per Vishay's absolute maximum ratings table in Document 70062.
Does DG409DQ-T1-E3 support single-supply operation?
Yes, DG409DQ-T1-E3 supports true single-supply operation from +5 V to +36 V, with V− tied to GND. In this configuration, it maintains 100 Ω max on-resistance and 160 ns max transition time, enabling simplified power design in portable and industrial systems without negative rails.
What is the function of the EN pin on DG409DQ-T1-E3?
The EN (enable) pin on DG409DQ-T1-E3 is an active-high digital control input. When logic low, it forces all internal switches OFF regardless of A0/A1 address state - providing global reset capability. This feature enables safe stacking of multiple DG409DQ-T1-E3 devices on shared analog buses without contention.
How does DG409DQ-T1-E3 achieve break-before-make switching?
DG409DQ-T1-E3 achieves break-before-make switching through internal timing control in its decoder/driver circuitry. When address bits change, the previously selected channel is fully turned OFF before the newly addressed channel turns ON - eliminating momentary short-circuits between differential inputs and preventing crosstalk in sensitive measurement paths.
Is DG409DQ-T1-E3 RoHS-compliant and what does the -E3 suffix indicate?
Yes, DG409DQ-T1-E3 is RoHS-compliant. The -E3 suffix explicitly denotes lead (Pb)-free terminations and compliance with EU RoHS Directive 2011/65/EU, as confirmed in Vishay's ordering information table and material categorization note in Document 70062. The -T1 indicates tape-and-reel packaging for automated assembly.
DG409DQ-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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-T1-E3 FAQ
1.How can I place an order for DG409DQ-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG409DQ-T1-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-T1-E3 reliable?
The price and inventory of DG409DQ-T1-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-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG409DQ-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG409DQ-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG409DQ-T1-E3?
DG409DQ-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG409DQ-T1-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-T1-E3?
For technical support, including DG409DQ-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG409DQ-T1-E3 requirements.
6.How does Aetrix verify that DG409DQ-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG409DQ-T1-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-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG409DQ-T1-E3?
All DG409DQ-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG409DQ-T1-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-T1-E3 part is unused and in its original packaging.
Return procedure for DG409DQ-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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