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Vishay Siliconix DG408LEDN-T1-GE4
- Part No.:
- DG408LEDN-T1-GE4
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
DG408LEDN-T1-GE4.pdf
- Description:
- IC MUX 8:1 23OHM 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:6,348
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Product details
Overview
DG408LEDN-T1-GE4 from Vishay Siliconix is an 8-channel single-ended analog multiplexer IC designed to route one of eight analog inputs to a common output under 3-bit binary address control (A0–A2). It operates on single supplies from 3 V to 16 V or dual ±3 V to ±8 V, features 17 Ω typical on-resistance, 55 ns enable turn-on time, and break-before-make switching-ideal for precision data acquisition in portable medical instruments.
For engineers reviewing the DG408LEDN-T1-GE4 datasheet, DG408LEDN-T1-GE4 pinout, DG408LEDN-T1-GE4 application, or DG408LEDN-T1-GE4 equivalent, key selection criteria include guaranteed break-before-make timing, low 1 nA max off-leakage at -40 °C to +85 °C, RoHS-compliant QFN16 (3 mm × 3 mm) packaging, and compatibility with TTL/CMOS/LV logic interfaces.
Technical Context
The DG408LEDN-T1-GE4 integrates an internal voltage regulator to power its logic circuitry, reducing total supply current to 6 μA max and enabling battery-operated use. Its monolithic CMOS design ensures symmetrical bidirectional conduction in the on-state and rail-to-rail blocking in the off-state up to ±18 V absolute maximum ratings.
Switching is controlled by three address lines (A0–A2) and an active-low enable (EN), with all digital inputs TTL-compatible across the full temperature range. The device guarantees break-before-make operation to prevent channel crosstalk during transitions, validated per functional truth table and test circuit Fig. 4.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog configuration | 8:1 single-ended multiplexer - selects one of eight analog inputs to single output |
| On-resistance (RDS(on)) | 17 Ω typ. at V+ = 12 V - enables low insertion loss and minimal signal distortion in sensor front-ends |
| Supply range | 3 V to 16 V single or ±3 V to ±8 V dual - supports wide-range industrial and portable power architectures |
| Enable turn-on time (tON(EN)) | 55 ns typ. at V+ = 12 V - ensures fast channel selection for high-throughput data logging |
| Off-leakage current (IS(OFF)) | 1 nA max. over -40 °C to +85 °C - preserves accuracy in high-impedance measurement paths |
| Off-isolation | -99 dB at 100 kHz - suppresses inter-channel interference in multi-sensor systems |
| Package | QFN16 (3 mm × 3 mm, Variation 2) - provides compact footprint and thermal performance for space-constrained PCBs |
Pinout & Package
DG408LEDN-T1-GE4 is housed in a 16-pin QFN package (3 mm × 3 mm, Variation 2) with exposed thermal pad. Pin 1 is marked by mold or laser indicator within specified zone; exposed pad may be connected to GND, V−, or left floating per layout requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A0) | Address input bit 0 | LSB of 3-bit binary channel select; TTL/CMOS compatible, drives internal decoder |
| 2 (A1) | Address input bit 1 | Middle bit of channel select; determines group of four channels (1–4 or 5–8) |
| 3 (A2) | Address input bit 2 | MSB of channel select; selects upper or lower half of 8-channel array |
| 4 (EN) | Active-low enable | Resets all switches to OFF when low; allows stacking multiple devices without crosstalk |
| 5–12 (S1–S8) | Analog switch inputs | Eight single-ended source terminals; bidirectional, rail-to-rail signal handling capability |
| 13 (D) | Common analog output | Shared drain terminal; connects to selected Sx input when enabled and addressed |
| 14 (V−) | Negative supply | Reference for dual-supply operation; tied to GND in single-supply mode |
| 15 (GND) | Ground reference | Logic and substrate reference; must be low-impedance connection for noise immunity |
| 16 (V+) | Positive supply | Primary power rail; powers analog switch core and internal voltage regulator |
Key Features
| Feature | Design Value |
|---|---|
| Internal voltage regulator | Reduces logic supply current to ≤6 μA, enabling direct integration into battery-powered systems |
| Break-before-make switching | Guaranteed timing prevents momentary shorting between adjacent channels during address changes |
| Rail-to-rail analog range | Supports full V− to V+ signal swing (e.g., 0–12 V or ±5 V), preserving dynamic range in sensor interfaces |
| TTL/CMOS/LV logic compatibility | Accepts 0.4 V to 2.4 V logic thresholds across 3 V to 16 V supply, simplifying host MCU interface |
| ESD protection | ±2.5 kV HBM and ±100 V machine model - enhances robustness in manufacturing and field environments |
Applications
| Automatic Test Equipment (ATE) | Data Acquisition Systems |
|---|---|
Use Scenario: Multiplexing dozens of sensor outputs into a single ADC channel for sequential sampling. IC Role / Device Role / Timing Role: Analog signal router with deterministic 55 ns enable latency and <1 nA leakage to maintain measurement integrity. Use Value: Enables high-channel-count, low-power ATE designs without external level-shifting or buffering. | Use Scenario: Selecting among thermocouple, RTD, and strain gauge inputs in a modular DAQ module. IC Role / Device Role / Timing Role: Precision analog switch with 17 Ω RDS(on) and -99 dB off-isolation to minimize cross-talk between sensor types. Use Value: Preserves signal fidelity across mixed-signal inputs while supporting single-supply 3.3 V or 5 V microcontroller control. |
| Portable Medical Devices | Battery-Powered Instrumentation |
Use Scenario: Routing ECG, SpO₂, and temperature signals to a shared analog front-end in handheld monitors. IC Role / Device Role / Timing Role: Low-power analog multiplexer with internal regulator and 6 μA max I+ consumption. Use Value: Extends battery life in Class II medical devices while meeting IEC 60601 creepage/clearance via QFN package. | Use Scenario: Signal conditioning in field-deployable environmental sensors powered by Li-ion cells. IC Role / Device Role / Timing Role: Single-supply 3 V–16 V operation with rail-to-rail analog range accommodates varying sensor output levels. Use Value: Eliminates need for separate charge pumps or LDOs, reducing BOM count and PCB area in compact enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617ESE+ | 8-channel, 16-pin SOIC; 45 Ω RDS(on) at +5 V; no internal regulator; 100 ns tON | Higher on-resistance and slower switching limit use in high-accuracy, high-speed DAQ | Select when SOIC footprint is required and 45 Ω on-resistance is acceptable for signal chain error budget |
| ADG1408BRUZ | 8-channel, 16-pin TSSOP; 4.7 Ω RDS(on) at +15 V; ±15 V dual-supply capable; 125 ns tON | Lower on-resistance but higher supply current (200 μA) and larger package reduce portability | Select for ultra-low distortion in precision instrumentation where power and size are secondary to RDS(on) |
Compared with MAX4617ESE+ and ADG1408BRUZ, DG408LEDN-T1-GE4 delivers optimal balance of low power (6 μA), compact QFN16 size, and 17 Ω on-resistance-making it preferred for battery-powered, space-constrained, and medium-accuracy analog routing tasks.
Availability
DG408LEDN-T1-GE4 is available at Aetrix Electronics and suitable for automatic test equipment, portable medical devices, and battery-powered instrumentation requiring stable component supply, RoHS-compliant packaging, and long-term production continuity.
Supply support for DG408LEDN-T1-GE4 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 semiconductor manufacturer specializing in discrete semiconductors and analog ICs, with leadership in power MOSFETs, diodes, optoelectronics, and precision analog switches.
The DG408LE product line is engineered for high-fidelity analog signal routing in data acquisition, test equipment, and portable healthcare systems-emphasizing low leakage, rail-to-rail operation, and integrated power efficiency.
FAQ
What supply voltage ranges does the DG408LEDN-T1-GE4 support?
The DG408LEDN-T1-GE4 supports single-supply operation from 3 V to 16 V and dual-supply operation from ±3 V to ±8 V. At V+ = 12 V, its analog signal range spans 0 V to 12 V; at ±5 V dual supply, it handles ±5 V signals. The internal regulator ensures logic functionality remains stable across this full range, making DG408LEDN-T1-GE4 suitable for mixed-voltage system designs.
Does DG408LEDN-T1-GE4 require external level-shifting for 3.3 V microcontroller control?
No, DG408LEDN-T1-GE4 accepts TTL/CMOS/LV logic inputs directly: logic high threshold is 2.4 V max and logic low is 0.8 V min at V+ = 12 V, scaling down to 2.0 V and 0.4 V respectively at V+ = 3 V. This eliminates external level shifters when interfacing with 3.3 V or 5 V MCUs, simplifying design and reducing component count for DG408LEDN-T1-GE4 implementations.
How is break-before-make timing guaranteed in DG408LEDN-T1-GE4?
Break-before-make timing is guaranteed by internal decoder architecture and process-controlled timing margins, validated in test circuit Fig. 4 and specified as tOPEN ≥ 34 ns (typ.) at V+ = 12 V. This ensures no overlap between switch closure and opening during address transitions, preventing transient shorts-critical for DG408LEDN-T1-GE4 use in high-impedance sensor multiplexing where even nanosecond crosstalk causes measurement errors.
Can the exposed thermal pad on the DG408LEDN-T1-GE4 QFN package be left unconnected?
Yes, the exposed pad on DG408LEDN-T1-GE4's QFN16 (Variation 2) package may be left floating, connected to GND, or tied to V− based on thermal and electrical requirements. Vishay documentation explicitly permits all three configurations; grounding is recommended for EMI reduction, while floating is acceptable in low-power applications where thermal dissipation is not limiting for DG408LEDN-T1-GE4 operation.
What is the maximum analog signal frequency supported by DG408LEDN-T1-GE4?
Based on -3 dB insertion loss data, DG408LEDN-T1-GE4 supports analog signals up to 39 MHz at V+ = 5 V (single supply). Off-isolation remains > -90 dB up to 1 MHz, and crosstalk stays below -95 dB in that band. For audio, sensor, and DC–100 kHz DAQ applications-which constitute the primary use cases for DG408LEDN-T1-GE4-bandwidth is not limiting, and signal integrity is preserved by low 5.5 pF CS(OFF) and 35 pF CD(ON).
DG408LEDN-T1-GE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 23Ohm
- Channel-to-Channel Matching (ΔRon):
- 1Ohm
- Voltage - Supply, Single (V+):
- 3V ~ 16V
- Voltage - Supply, Dual (V±):
- ±3V ~ 8V
- Switch Time (Ton, Toff) (Max):
- 72ns, 47ns
- -3db Bandwidth:
- -
- Charge Injection:
- 11pC
- Channel Capacitance (CS(off), CD(off)):
- 5.5pF, 25pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -98dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (3x3)
DG408LEDN-T1-GE4 FAQ
1.How can I place an order for DG408LEDN-T1-GE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG408LEDN-T1-GE4 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 DG408LEDN-T1-GE4 reliable?
The price and inventory of DG408LEDN-T1-GE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG408LEDN-T1-GE4 is usually 5 days.
3.What payment methods are accepted for DG408LEDN-T1-GE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG408LEDN-T1-GE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG408LEDN-T1-GE4?
DG408LEDN-T1-GE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG408LEDN-T1-GE4 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 DG408LEDN-T1-GE4?
For technical support, including DG408LEDN-T1-GE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG408LEDN-T1-GE4 requirements.
6.How does Aetrix verify that DG408LEDN-T1-GE4 is sourced from the original manufacturer or authorized distributors?
All DG408LEDN-T1-GE4 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 DG408LEDN-T1-GE4 meets industry standards.
7.What is the process for return or replacement of DG408LEDN-T1-GE4?
All DG408LEDN-T1-GE4 units undergo pre-shipment inspection (PSI). If there is an issue with DG408LEDN-T1-GE4, 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 DG408LEDN-T1-GE4 part is unused and in its original packaging.
Return procedure for DG408LEDN-T1-GE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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