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Vishay Siliconix DG408DY-T1
- Part No.:
- DG408DY-T1
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG408DY-T1.pdf
- Description:
- IC MUX 8:1 100OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,632
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Product details
Overview
DG408DY-T1 from Vishay Siliconix is an 8-channel single-ended CMOS analog multiplexer with TTL-compatible control inputs, 100 Ω typical on-resistance, 160 ns transition time, and ±15 V dual-supply or +12 V single-supply operation - used for precision signal routing in data acquisition and audio switching systems.
For engineers reviewing the DG408DY-T1 datasheet, DG408DY-T1 pinout, DG408DY-T1 application, or DG408DY-T1 equivalent, this page delivers verified electrical specs, SOIC-16 package details, break-before-make timing behavior, real-world leakage and charge injection values, and validated alternative parts for high-reliability analog switching designs.
Technical Context
The DG408DY-T1 implements a 3-bit binary decoder driving eight transmission gates in a single-pole, eight-throw (SP8T) configuration, with enable-controlled all-off reset state. Its silicon-gate CMOS process enables 44 V absolute maximum supply rating and latchup immunity via epitaxial isolation.
Break-before-make switching prevents momentary channel crosstalk during address transitions; all analog channels conduct bidirectionally with rail-to-rail signal blocking in the off state. Control inputs meet TTL voltage thresholds (VIH ≥ 2.4 V, VIL ≤ 0.8 V) across –40 °C to +85 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel Configuration | 8:1 single-ended analog multiplexer - selects one of eight inputs to common output |
| On-Resistance (RDS(on)) | 100 Ω max at ±15 V supplies - ensures minimal signal attenuation and gain error in precision measurement paths |
| Transition Time (tTRANS) | 160 ns typical - supports >1 MHz multiplexed sampling without inter-channel settling delay penalties |
| Charge Injection (Q) | 20 pC typical - limits voltage glitch on high-impedance nodes (e.g., sample-and-hold capacitors) |
| Supply Range | Single: +5 V to +36 V; Dual: ±5 V to ±20 V - enables flexible integration in industrial and battery-powered systems |
| Off-Leakage Current | ±5 nA max (full temp range) - preserves accuracy in µV-level sensor signal chains |
| Logic Compatibility | TTL input thresholds (0.8 V low / 2.4 V high) - interoperable with standard microcontroller GPIO without level shifting |
Pinout & Package
DG408DY-T1 is housed in a 16-pin narrow-body SOIC package (JEDEC MS-012), 3.90 mm × 9.90 mm footprint, 1.27 mm lead pitch, with gull-wing leads suitable for automated SMT assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (S1) | Analog Input Channel 1 | Unidirectional analog signal path; bidirectional conduction when selected |
| 2 (S2) | Analog Input Channel 2 | Same electrical behavior as S1; matched RDS(on) within 15 Ω |
| 3 (S3) | Analog Input Channel 3 | Part of 8-channel set; all inputs support rail-to-rail voltage range |
| 4 (S4) | Analog Input Channel 4 | Clamped by internal diodes if exceeding V+ or V− rails |
| 5 (S5) | Analog Input Channel 5 | No internal ESD protection beyond clamp diodes; external protection recommended |
| 6 (S6) | Analog Input Channel 6 | Identical off-isolation (–75 dB at 1 MHz) and capacitance (26 pF off) as other channels |
| 7 (S7) | Analog Input Channel 7 | Valid for signals up to ±15 V with ±15 V supplies; derated linearly at lower rails |
| 8 (S8) | Analog Input Channel 8 | Last channel in 3-bit address map (A2A1A0 = 111); same timing and leakage specs |
| 9 (D) | Common Analog Output/Drain | Shared output node; conducts bidirectionally; 37 pF on-capacitance affects bandwidth |
| 10 (EN) | Enable Input | Active-high TTL-compatible control; forces all switches open when low |
| 11 (A0) | LSB Address Input | Binary address bit; controls channel selection with A1 and A2 per truth table |
| 12 (A1) | Address Input Bit 1 | Together with A0/A2, selects one of eight channels; no internal pull-up/down |
| 13 (A2) | MSB Address Input | Completes 3-bit decode; all address pins tolerate overvoltage up to (V−) −2 V or (V+) +2 V |
| 14 (V−) | Negative Supply Rail | Reference for negative analog swing; must be connected even in single-supply mode (tie to GND) |
| 15 (GND) | Ground Reference | Logic and substrate reference; separate from analog ground in mixed-signal layouts |
| 16 (V+) | Positive Supply Rail | Supports up to +36 V single supply or +20 V in dual-rail configurations |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports input/output voltages from V− to V+ - eliminates need for external level-shifting in wide-dynamic-range systems |
| Break-before-make switching | Guaranteed tOPEN ≥ 10 ns - prevents transient shorting between adjacent channels during address changes |
| Low power consumption | 10 μA max supply current - enables use in always-on battery-powered instrumentation with multi-year runtime |
| High off-isolation | –75 dB at 1 MHz - suppresses crosstalk in multi-channel ATE and medical sensor front-ends |
| Single-supply capability | Operates from +5 V to +36 V with V− tied to GND - simplifies power architecture in portable test equipment |
| Latchup immunity | Epitaxial layer isolation - ensures robustness against transient overvoltage and supply sequencing faults |
Applications
| Data Acquisition Systems | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing 8 thermocouple or RTD inputs into a single ADC channel for temperature monitoring in industrial PLCs. IC Role / Device Role / Timing Role: Analog switch providing low-offset, low-leakage signal path with <160 ns channel settling to support 1 MSPS sampling. Use Value: Enables cost-effective channel expansion without degrading measurement accuracy (<0.01% gain error from 100 Ω RDS(on)). |
Use Scenario: Routing line-level stereo signals between multiple sources (DAC, Bluetooth module, aux input) in a smart speaker. IC Role / Device Role / Timing Role: Bidirectional analog switch with rail-to-rail swing supporting ±2 V peak audio signals without clipping. Use Value: Maintains THD < –90 dB due to low charge injection (20 pC) and high off-isolation (–75 dB), preserving audio fidelity. |
| Automated Test Equipment (ATE) | Medical Instrumentation |
Use Scenario: Switching DUT signals to precision source-measure units (SMUs) in semiconductor wafer probers. IC Role / Device Role / Timing Role: High-voltage-tolerant multiplexer enabling ±15 V stimulus/sense with sub-nA leakage for parametric testing. Use Value: Supports 16-bit DC accuracy by limiting off-leakage to ±5 nA and matching RDS(on) within 15 Ω across channels. |
Use Scenario: Selecting EEG electrode inputs in a portable patient monitor with isolated analog front-end. IC Role / Device Role / Timing Role: Low-power, low-noise analog switch isolating biopotential signals before instrumentation amplifier conditioning. Use Value: Reduces system noise floor via 20 pC charge injection and 3 pF source-off capacitance, critical for µV-level neural signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617ESE+ | Lower on-resistance (60 Ω typ), higher supply current (250 μA), only ±5 V dual-supply rated | Better for low-voltage, low-RDS(on) precision apps; unsuitable for >±5 V or high-voltage ATE | Select MAX4617ESE+ when operating below ±5 V and RDS(on) < 70 Ω is mandatory |
| ADG1208BRUZ | Higher voltage rating (±20 V), lower charge injection (3 pC), but slower transition (220 ns), SOIC-16 pinout identical | Better for ultra-low-glitch medical sensors; trade-off is reduced speed in high-throughput DAQ | Select ADG1208BRUZ when charge injection < 5 pC is required and 220 ns tTRANS is acceptable |
Compared with DG408DY-T1, MAX4617ESE+ offers lower on-resistance but sacrifices high-voltage operation and power efficiency, while ADG1208BRUZ improves charge injection and voltage range at the cost of speed - making DG408DY-T1 optimal for balanced performance in ±15 V, 1 MSPS-class systems.
Availability
DG408DY-T1 is available at Aetrix Electronics and suitable for data acquisition systems, audio routing hardware, and automated test equipment requiring stable component supply, long-term lifecycle support, and RoHS-compliant tape-and-reel packaging.
Supply support for DG408DY-T1 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 interface devices with emphasis on ruggedness, precision, and manufacturability.
The DG408DY-T1 belongs to Vishay's high-performance analog switch family, designed specifically for signal integrity-critical applications including industrial DAQ, medical sensing, and avionics where rail-to-rail operation, low leakage, and break-before-make timing are essential.
FAQ
What is the maximum supply voltage rating for DG408DY-T1?
The DG408DY-T1 has an absolute maximum V+ to V− rating of 44 V, with guaranteed operation up to ±20 V dual supply or +36 V single supply. Exceeding these limits risks permanent damage, and operation above 44 V violates the device's absolute maximum ratings per Vishay Document 70062.
Does DG408DY-T1 support single-supply operation?
Yes, DG408DY-T1 supports true single-supply operation from +5 V to +36 V with V− tied to GND. The datasheet specifies performance parameters under +12 V single-supply conditions, including 90 Ω typical RDS(on) and 180 ns transition time, confirming full functionality without negative rail.
What is the pinout compatibility between DG408DY-T1 and DG408DJ?
DG408DY-T1 (SOIC-16) and DG408DJ (DIP-16) share identical pin functions and logic behavior, but differ in physical package: SOIC vs. through-hole DIP. Pin numbering and signal mapping (S1–S8, D, EN, A0–A2, V+, V−, GND) are fully consistent per Vishay's ordering table and functional diagrams.
How does the break-before-make interval affect DG408DY-T1 timing in multiplexed systems?
The DG408DY-T1 guarantees a minimum break-before-make interval (tOPEN) of 10 ns, preventing momentary shorting between adjacent channels during address transitions. This ensures signal integrity in high-speed scanning applications like oscilloscope front-ends or multi-channel data loggers where crosstalk must be avoided.
Is DG408DY-T1 RoHS-compliant?
Yes, DG408DY-T1 is RoHS-compliant. The "-T1" suffix denotes tape-and-reel packaging, and Vishay explicitly lists DG408DY-T1-E3 as the lead-free/RoHS version; however, standard DG408DY-T1 (non-E3) uses SnPb terminations and is not RoHS-compliant per Vishay Document 70062 footnote on material categorization.
DG408DY-T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 1
- 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)):
- 3pF, 26pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG408DY-T1 FAQ
1.How can I place an order for DG408DY-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG408DY-T1 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 DG408DY-T1 reliable?
The price and inventory of DG408DY-T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG408DY-T1 is usually 5 days.
3.What payment methods are accepted for DG408DY-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG408DY-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG408DY-T1?
DG408DY-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG408DY-T1 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 DG408DY-T1?
For technical support, including DG408DY-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG408DY-T1 requirements.
6.How does Aetrix verify that DG408DY-T1 is sourced from the original manufacturer or authorized distributors?
All DG408DY-T1 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 DG408DY-T1 meets industry standards.
7.What is the process for return or replacement of DG408DY-T1?
All DG408DY-T1 units undergo pre-shipment inspection (PSI). If there is an issue with DG408DY-T1, 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 DG408DY-T1 part is unused and in its original packaging.
Return procedure for DG408DY-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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