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Vishay Siliconix DG9408EDN-T1-GE4
- Part No.:
- DG9408EDN-T1-GE4
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
DG9408EDN-T1-GE4.pdf
- Description:
- IC MUX 8:1 7OHM 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:13,553
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Product details
Overview
DG9408EDN-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 features 3.2 Ω typical on-resistance, 36 ns enable turn-on time, and operates from 3 V to 16 V single supply or ±3 V to ±8 V dual supply - ideal for precision data acquisition systems requiring low distortion and fast channel switching.
For engineers reviewing the DG9408EDN-T1-GE4 datasheet, DG9408EDN-T1-GE4 pinout, DG9408EDN-T1-GE4 application, or DG9408EDN-T1-GE4 equivalent, key selection criteria include guaranteed break-before-make timing, ±5 V dual-supply compatibility, QFN-16 package thermal performance, and 2500 V HBM ESD rating for rugged industrial signal routing.
Technical Context
The DG9408EDN-T1-GE4 employs BiCMOS fabrication to support wide supply ranges while maintaining low RON flatness (≤8 Ω) and tight channel-to-channel RON matching (ΔRON ≤ 3.6 Ω). Its decoder/driver integrates level-shifting circuitry enabling TTL/CMOS/LV logic compatibility across 3 V, 5 V, and 12 V supplies.
Break-before-make switching is architecturally guaranteed - preventing momentary crosstalk during channel transitions - and all digital inputs tolerate overvoltage clamping up to V+ or V− via internal diodes, supporting robust interfacing in mixed-signal environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance | 3.2 Ω typ. at 12 V - ensures minimal signal attenuation and gain error in precision measurement paths |
| Enable turn-on time | 36 ns typ. - enables high-throughput scanning in automated test equipment (ATE) |
| Analog signal range | 0 to 12 V (single supply) or ±5 V (dual supply) - supports full-rail operation with bipolar sensor interfaces |
| Charge injection | 4.5 pC typ. - limits voltage glitch on high-impedance sampling nodes (e.g., SAR ADC hold capacitors) |
| Off isolation | −83 dB at 100 kHz - suppresses crosstalk between inactive channels in multi-sensor monitoring |
| ESD rating | 2500 V HBM - meets IEC 61000-4-2 Level 2 for handling robustness in production environments |
| Supply current | 1 μA max. - enables ultra-low-power operation in battery-backed data loggers |
Pinout & Package
The DG9408EDN-T1-GE4 is housed in a lead (Pb)-free 16-pin QFN package (4 mm × 4 mm), with exposed thermal pad having no internal electrical connection - configurable as GND, V+, V−, or floating per layout requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 7, 8, 10 | S1–S8 analog inputs | Eight independent single-ended source terminals; each clamped to V+ or V− by internal diodes |
| 6 | D analog output | Common drain node; supports bidirectional signal flow with 154 pF on-capacitance at 1 MHz |
| 9, 11, 12 | A0, A1, A2 address inputs | 3-bit binary select lines; CMOS-compatible with 0.8 V / 2.4 V thresholds at 12 V supply |
| 13 | EN enable input | Active-low enable; asserts break-before-make timing when transitioning between channels |
| 14 | V+ | Positive supply rail; supports 3–16 V single or ±3–±8 V dual operation |
| 15 | V− | Negative supply rail; required for dual-supply mode; tied to GND in single-supply configurations |
| 16 | GND | Ground reference; decoupling recommended adjacent to V+ and V− pins |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make guarantee | Prevents signal shorting during channel transitions - critical for avoiding transient errors in medical sensor arrays |
| Wide supply flexibility | Operates from 3 V to 16 V single supply or ±3 V to ±8 V dual supply - eliminates need for level shifters in mixed-voltage systems |
| Low leakage performance | ±2 nA max. off-state leakage - preserves accuracy in high-impedance pH or thermocouple front-ends |
| QFN-16 thermal design | Exposed pad enhances power dissipation (1880 mW at 70 °C ambient) - sustains continuous 100 mA channel current |
| TTL/CMOS/LV logic compatibility | Supports 3 V, 5 V, and 12 V logic families without external translators - simplifies microcontroller interface |
Applications
| Automatic Test Equipment | Data Acquisition Systems |
|---|---|
Use Scenario: High-speed scanning of DUT signals across 8 sensor inputs in semiconductor wafer probers. IC Role / Device Role / Timing Role: Analog multiplexer routing selected sensor voltage to shared ADC input with <71 ns max transition time. Use Value: Enables 10 kSPS aggregate sampling rate with <0.01% gain error due to 3.2 Ω RON and <8 Ω flatness. | Use Scenario: Consolidating temperature, pressure, and humidity readings from distributed industrial sensors into a single microcontroller ADC. IC Role / Device Role / Timing Role: Low-leakage (±2 nA) channel selector ensuring <1 LSB error in 16-bit SAR conversion at 1 MΩ source impedance. Use Value: Eliminates external op-amp buffers per channel, reducing BOM count and board area by 40%. |
| Medical Instrumentation | Audio Signal Routing |
Use Scenario: Multiplexing ECG electrode signals in portable patient monitors with battery-only operation. IC Role / Device Role / Timing Role: Ultra-low 1 μA supply current and 3 V minimum operation extend runtime in coin-cell-powered devices. Use Value: Achieves >100-hour operation on CR2032 while maintaining <83 dB off-isolation between leads. | Use Scenario: Switching line-level analog audio between multiple sources (mic, instrument, playback) in studio mixers. IC Role / Device Role / Timing Role: Low 4.5 pC charge injection prevents audible pop/click during source switching. Use Value: Delivers <−90 dB crosstalk at 20 kHz, meeting AES17 professional audio standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617ESE+ | Higher RON (10 Ω typ.), slower tON (120 ns), SOIC-16 package | Lacks QFN thermal performance and dual-supply support; limited to 5 V systems | Choose for legacy through-hole designs where PCB rework is prohibitive |
| ADG1408BRUZ | Lower RON (4.5 Ω typ.), higher supply current (200 μA), TSSOP-16 | Superior THD but requires active biasing for ±5 V operation; no integrated clamp diodes | Prefer when total harmonic distortion < −100 dB is mandatory and layout allows discrete protection |
Compared with MAX4617ESE+ and ADG1408BRUZ, the DG9408EDN-T1-GE4 delivers optimal balance of speed (36 ns), low RON (3.2 Ω), and dual-supply flexibility in a thermally enhanced QFN - making it the preferred choice for space-constrained, multi-range industrial DAQ platforms.
Availability
DG9408EDN-T1-GE4 is available at Aetrix Electronics and suitable for automatic test equipment, process control systems, and medical instrumentation requiring stable component supply across extended temperature ranges (−40 °C to +85 °C).
Supply support for DG9408EDN-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 leader in discrete semiconductors and passive components, specializing in high-reliability analog solutions for industrial, automotive, and medical markets.
The DG9408EDN-T1-GE4 belongs to Vishay's high-performance analog switch product line, engineered specifically for precision signal routing in data acquisition, instrumentation, and portable healthcare devices where low distortion and supply flexibility are critical.
FAQ
What supply voltage ranges does the DG9408EDN-T1-GE4 support?
The DG9408EDN-T1-GE4 supports single-supply operation from 3 V to 16 V and dual-supply operation from ±3 V to ±8 V. At 12 V single supply, typical on-resistance is 3.2 Ω; at ±5 V dual supply, it rises to 4 Ω. The device maintains guaranteed break-before-make timing and logic compatibility across all supported rails - confirmed in Vishay's E25-0257-Rev. B datasheet sections 3 and 4.
Does the DG9408EDN-T1-GE4 require external clamping diodes for overvoltage protection?
No. The DG9408EDN-T1-GE4 integrates internal clamping diodes on all analog terminals (S1–S8, D), limiting signals exceeding V+ or V−. Per datasheet Note "a" on page 2, forward diode current must be limited to rated maximums - but no external diodes are needed for standard overvoltage transients within ±0.3 V of supply rails.
What is the maximum analog signal voltage the DG9408EDN-T1-GE4 can handle in single-supply mode?
In single-supply mode, the DG9408EDN-T1-GE4 supports analog signals from 0 V to V+ (e.g., 0–12 V at V+ = 12 V). The absolute maximum rating allows VANALOG up to V+ + 0.3 V, but functional operation is specified only within the 0 to V+ range. This full-rail capability is validated in the "Analog Signal Range" parameter table on page 3 of the datasheet.
How is break-before-make timing guaranteed in the DG9408EDN-T1-GE4?
Break-before-make timing is architecturally guaranteed in the DG9408EDN-T1-GE4 via internal decoder/driver logic that forces all switches to open before any new channel closes. Measured tBBM is ≥2 ns (room temp, 12 V supply) - verified in Figure 4 test circuit and Table "Dynamic Characteristics" on page 3. This eliminates momentary shorts during address changes, critical for sensor multiplexing integrity.
Is the exposed thermal pad on the DG9408EDN-T1-GE4 QFN package electrically connected?
No. The central exposed pad on the DG9408EDN-T1-GE4 QFN-16 package has no internal electrical connection to the die. As stated in the "Functional Block Diagram" note on page 1, it may be connected to GND, V+, V−, or left floating - serving solely as a thermal path. PCB layout should use thermal vias to a solid plane for optimal junction-to-ambient thermal resistance.
DG9408EDN-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):
- 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)):
- 21pF, 211pF
- 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)
DG9408EDN-T1-GE4 FAQ
1.How can I place an order for DG9408EDN-T1-GE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG9408EDN-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 DG9408EDN-T1-GE4 reliable?
The price and inventory of DG9408EDN-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 DG9408EDN-T1-GE4 is usually 5 days.
3.What payment methods are accepted for DG9408EDN-T1-GE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG9408EDN-T1-GE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG9408EDN-T1-GE4?
DG9408EDN-T1-GE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG9408EDN-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 DG9408EDN-T1-GE4?
For technical support, including DG9408EDN-T1-GE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG9408EDN-T1-GE4 requirements.
6.How does Aetrix verify that DG9408EDN-T1-GE4 is sourced from the original manufacturer or authorized distributors?
All DG9408EDN-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 DG9408EDN-T1-GE4 meets industry standards.
7.What is the process for return or replacement of DG9408EDN-T1-GE4?
All DG9408EDN-T1-GE4 units undergo pre-shipment inspection (PSI). If there is an issue with DG9408EDN-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 DG9408EDN-T1-GE4 part is unused and in its original packaging.
Return procedure for DG9408EDN-T1-GE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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