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Vishay Siliconix DG9409DN-T1-E4
- Part No.:
- DG9409DN-T1-E4
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
DG9409DN-T1-E4.pdf
- Description:
- IC SWITCH SP4T X 2 7OHM 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,943
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Product details
Overview
DG9409DN-T1-E4 from Vishay Siliconix is a dual 4-channel differential analog multiplexer IC designed for precision signal routing in low-voltage data acquisition and portable test equipment. It operates on single supplies (3 V to 12 V) or dual supplies (±3 V to ±6 V), features 3.9 Ω typical on-resistance, 42 ns enable turn-on time, and guaranteed break-before-make switching to prevent crosstalk between differential channels.
For engineers reviewing the DG9409DN-T1-E4 datasheet, DG9409DN-T1-E4 pinout, DG9409DN-T1-E4 application, or DG9409DN-T1-E4 equivalent, key selection criteria include differential channel count, RON flatness across analog range, ESD robustness (2000 V HBM), and QFN16 package compatibility with high-density PCB layouts.
Technical Context
The DG9409DN-T1-E4 implements a BiCMOS process enabling rail-to-rail analog signal handling and TTL/CMOS/LV logic compatibility at 3 V. Its internal decoder/driver supports 2-bit binary addressing (A0, A1) to select one of four differential input pairs (S1a/S1b through S4a/S4b) to common dual outputs Da/Db.
Break-before-make timing is guaranteed across temperature (–40 °C to +85 °C) and supply conditions, with leakage currents limited to ±15 nA and charge injection as low as 7 pC at 3 V operation - critical for sample-and-hold accuracy and low-distortion audio routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Configuration | Dual 4-channel differential switch - routes one of four isolated differential signal paths to shared Da/Db outputs. |
| Supply Range | Single: 3 V to 12 V; Dual: ±3 V to ±6 V - supports battery-powered and mixed-signal systems without level-shifting. |
| On-Resistance (RON) | 3.9 Ω typ. at 12 V - ensures minimal signal attenuation and gain error in precision measurement paths. |
| Switching Speed | tON(EN) = 42 ns, tOFF(EN) = 24 ns - enables high-throughput multiplexing in real-time data acquisition. |
| Leakage Current | ±15 nA max. (ID(on), IS(off), ID(off)) - preserves integrity of high-impedance sensor inputs and low-current bias networks. |
| ESD Protection | 2000 V HBM - safeguards against handling damage during assembly and field service in portable equipment. |
| Package | 16-pin QFN (4 mm × 4 mm) with NiPdAu terminations - RoHS-compliant, MSL-1, optimized for thermal dissipation and space-constrained layouts. |
Pinout & Package
Package: 16-pin QFN (4 mm × 4 mm), exposed thermal pad, lead (Pb)-free with NiPdAu terminations per JEDEC reflow standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 12, 11, 10, 5, 6, 7, 8 | S1a, S2a, S3a, S4a, S1b, S2b, S3b, S4b, GND, EN | Differential source terminals (Sxa/Sxb), ground reference, and active-low enable control - defines channel selection and power gating. |
| 4, 9 | A0, A1 | 2-bit binary address inputs - determine which differential pair connects to Da/Db outputs. |
| 13, 16 | V+, V− | Analog supply rails - support single-ended (V+ to GND) or true differential (V+/V−) operation with rail-to-rail signal swing. |
| 14, 15 | Da, Db | Differential output terminals - deliver selected differential signal with matched impedance and low crosstalk (–85 dB). |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed tBBM ≥ 2 ns - eliminates momentary short-circuit between adjacent differential channels during switching. |
| RON matching | ΔRON ≤ 3.6 Ω - maintains amplitude balance across differential paths for accurate common-mode rejection. |
| Low charge injection | 7 pC at 3 V - minimizes voltage glitch on sampled nodes, critical for high-resolution ADC front-ends. |
| Off isolation | –81 dB at 100 kHz - suppresses interference from unselected channels into sensitive measurement circuits. |
| Logic compatibility | TTL/CMOS/LV thresholds (VINH = 1.8 V @ 3 V supply) - interfaces directly with microcontrollers and FPGAs without level shifters. |
Applications
| Portable Test Equipment | Data Acquisition Systems |
|---|---|
|
Use Scenario: Handheld multimeter or oscilloscope probe multiplexer selecting between multiple differential sensor inputs. IC Role / Device Role / Timing Role: Dual differential analog switch managing signal path routing under microcontroller address control. Use Value: Enables compact, battery-efficient design with <3.9 Ω RON and <24 ns tOFF for rapid channel scanning without cross-talk artifacts. |
Use Scenario: Industrial PLC module acquiring synchronized voltage/current readings from multiple isolated transducers. IC Role / Device Role / Timing Role: Precision differential multiplexer interfacing with sigma-delta ADCs in noise-sensitive environments. Use Value: –81 dB off-isolation and ±15 nA leakage preserve measurement fidelity across 16-bit+ resolution systems. |
| Audio Signal Routing | Communication Systems |
|
Use Scenario: Low-noise audio mixer or headphone amplifier selecting between balanced line inputs. IC Role / Device Role / Timing Role: Differential analog switch preserving common-mode rejection ratio (CMRR) during source switching. Use Value: Matched RON (≤3.6 Ω Δ) and low crosstalk (–85 dB) maintain stereo channel separation and THD performance. |
Use Scenario: DSLAM line card routing differential ADSL/VDSL signals between line drivers and codec interfaces. IC Role / Device Role / Timing Role: High-speed differential switch supporting broadband signal integrity up to 1 MHz bandwidth. Use Value: 12 V operation capability and 2000 V HBM protection ensure reliability in telecom infrastructure with frequent hot-plug events. |
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 |
|---|---|---|---|
| MAX4618ESE+ | Single-supply only (2.7 V to 12 V); no dual-supply support; RON = 5.5 Ω typ.; 16-pin SOIC package. | Lacks differential output structure - requires external op-amp buffering for true differential signaling. | Select when board layout favors through-hole or wider pitch, and dual-supply operation is unnecessary. |
| ADG1409BRUZ | Higher RON (10.5 Ω typ. at 5 V); supports ±15 V dual supplies; 16-pin TSSOP package; 1000 V HBM ESD. | Better high-voltage tolerance but slower switching (tON = 120 ns) and higher leakage (>50 nA). | Select for industrial systems requiring extended voltage range and ruggedness over speed and ultra-low leakage. |
Compared with MAX4618ESE+ and ADG1409BRUZ, DG9409DN-T1-E4 uniquely balances dual-supply flexibility, sub-4 Ω RON, and 2000 V HBM in a thermally enhanced QFN - making it optimal for portable, precision, and telecom-grade differential routing where layout density and low distortion are critical.
Availability
DG9409DN-T1-E4 is available at Aetrix Electronics and suitable for portable test equipment, data acquisition systems, and communication systems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for DG9409DN-T1-E4 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, high-performance solutions for industrial, automotive, and computing markets.
The DG9409DN-T1-E4 belongs to Vishay's precision analog switch product line, engineered specifically for low-distortion, low-leakage differential signal routing in battery-powered and mixed-signal instrumentation.
FAQ
What is the maximum analog signal range supported by DG9409DN-T1-E4?
DG9409DN-T1-E4 supports full rail-to-rail analog signal ranges: 0 V to 12 V with single supply, or ±5 V with dual supply (±3 V to ±6 V recommended). At 3 V single supply, the range is 0 V to 3 V. These limits are defined by the V+ and V− pins and are guaranteed across –40 °C to +85 °C.
Does DG9409DN-T1-E4 require external pull-up resistors on address or enable pins?
No. DG9409DN-T1-E4 has CMOS-compatible digital inputs with specified VINH (≥1.8 V at 3 V supply) and VINL (≤0.4 V), and input current ≤±1 µA. External pull-ups are unnecessary unless system-level noise immunity or default state control is required beyond datasheet specifications.
How does the break-before-make timing behave under varying supply voltages?
DG9409DN-T1-E4 guarantees break-before-make operation across all rated conditions: tBBM ≥ 2 ns minimum at 3 V, 5 V, and 12 V single supply, and ≥1 ns at ±5 V dual supply. This is ensured by internal timing circuitry - not dependent on external RC networks or supply ramp rates.
Can DG9409DN-T1-E4 be used in audio applications with 24-bit ADCs?
Yes. With 3.9 Ω typical RON, ≤3.6 Ω channel matching, 7 pC charge injection at 3 V, and –85 dB crosstalk, DG9409DN-T1-E4 meets dynamic range and THD requirements for 24-bit audio ADC front-ends - especially when paired with low-impedance sources and proper PCB layout.
Is the exposed thermal pad on the QFN package required to be soldered to ground?
Yes. The exposed pad on DG9409DN-T1-E4's QFN16 package must be soldered to a PCB thermal pad connected to GND for optimal thermal performance and electrical stability. Per Vishay's package note, this improves power dissipation (1880 mW at 70 °C) and reduces thermal resistance by >30% versus unsoldered pad.
DG9409DN-T1-E4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 7Ohm
- Channel-to-Channel Matching (ΔRon):
- 3.6Ohm (Max)
- Voltage - Supply, Single (V+):
- 2.7V ~ 12V
- Voltage - Supply, Dual (V±):
- ±3V ~ 6V
- Switch Time (Ton, Toff) (Max):
- 70ns, 44ns
- -3db Bandwidth:
- -
- Charge Injection:
- 29pC
- Channel Capacitance (CS(off), CD(off)):
- 23pF, 112pF
- Current - Leakage (IS(off)) (Max):
- 2nA
- Crosstalk:
- -85dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (4x4)
DG9409DN-T1-E4 FAQ
1.How can I place an order for DG9409DN-T1-E4 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG9409DN-T1-E4 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 DG9409DN-T1-E4 reliable?
The price and inventory of DG9409DN-T1-E4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG9409DN-T1-E4 is usually 5 days.
3.What payment methods are accepted for DG9409DN-T1-E4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG9409DN-T1-E4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG9409DN-T1-E4?
DG9409DN-T1-E4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG9409DN-T1-E4 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 DG9409DN-T1-E4?
For technical support, including DG9409DN-T1-E4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG9409DN-T1-E4 requirements.
6.How does Aetrix verify that DG9409DN-T1-E4 is sourced from the original manufacturer or authorized distributors?
All DG9409DN-T1-E4 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 DG9409DN-T1-E4 meets industry standards.
7.What is the process for return or replacement of DG9409DN-T1-E4?
All DG9409DN-T1-E4 units undergo pre-shipment inspection (PSI). If there is an issue with DG9409DN-T1-E4, 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 DG9409DN-T1-E4 part is unused and in its original packaging.
Return procedure for DG9409DN-T1-E4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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