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Vishay Siliconix DG1408EN-T1-GE4
- Part No.:
- DG1408EN-T1-GE4
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
DG1408EN-T1-GE4.pdf
- Description:
- IC MUX 8:1 4.7OHM 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,306
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Product details
Overview
DG1408EN-T1-GE4 from Vishay Siliconix is an 8-channel precision analog multiplexer IC with 3.2 Ω typical on-resistance, ±15 V / +12 V / ±5 V dual/single supply operation, and QFN16 (4 mm × 4 mm) package. It routes one of eight single-ended inputs to a common drain output under 3-bit binary address control (A0–A2), enabling high-fidelity signal switching in data acquisition and medical instrumentation.
For engineers reviewing the DG1408EN-T1-GE4 datasheet, DG1408EN-T1-GE4 pinout, DG1408EN-T1-GE4 application, or DG1408EN-T1-GE4 equivalent, key selection criteria include on-resistance flatness (0.5 Ω), rail-to-rail signal handling, break-before-make timing (50 ns typ.), charge injection (100 pC typ. at ±15 V), and guaranteed operation from –40 °C to +125 °C.
Technical Context
The DG1408EN-T1-GE4 implements a CMOS-based 8:1 analog switch architecture with integrated decoder/driver, supporting bidirectional signal flow and rail-to-rail analog voltage range (V– to V+). Its break-before-make switching prevents crosstalk during channel transitions, and the EN pin enables global reset to all-off state for cascading configurations.
It operates across three supply configurations: ±4.5 V to ±15 V dual supplies, +4.5 V to +24 V single supply (with V– tied to GND), or asymmetric rails up to ±16.5 V. Digital inputs are TTL/CMOS-compatible (VIH = 2 V, VIL = 0.8 V) and require no separate VL supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RDS(on)) | 3.2 Ω typical at ±15 V, 25 °C - ensures low insertion loss and minimal signal attenuation in precision measurement paths |
| On-resistance flatness | 0.5 Ω typical - maintains consistent gain and linearity across full analog input range (±10 V) |
| Channel matching (ΔRDS(on)) | 0.2 Ω typical - critical for differential and ratiometric measurements requiring matched path impedance |
| Charge injection | 100 pC typical at ±15 V - minimizes sampling error in sample-and-hold and ADC front-end applications |
| Off isolation (OIRR) | –60 dB typical at 1 MHz - suppresses signal coupling between inactive channels in multi-sensor systems |
| Bandwidth (–3 dB) | 46 MHz typical (DG1408) - supports fast-switching analog signals up to audio and low-speed video frequencies |
| Supply range | ±4.5 V to ±16.5 V dual or +4.5 V to +24 V single - enables compatibility with industrial ±15 V, automotive +12 V, and portable +5 V systems |
Pinout & Package
Package: RoHS-compliant, halogen-free QFN16 (4 mm × 4 mm), exposed pad tied to V– per datasheet note.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN) | Enable input | Active-high logic control; drives all switches OFF when low - enables stacking and power-gating in multi-mux systems |
| 2 (A0), 3 (A1), 4 (A2) | Binary address inputs | 3-bit select lines determining which of S1–S8 connects to D - compatible with standard microcontroller GPIO |
| 5 (S4), 6 (D), 7 (S8), 8 (S7) | Analog terminals | S4/S7/S8 are source inputs; D is common drain output - bidirectional conduction supports mux or demux use |
| 9 (V–), 10 (S1), 11 (S2), 12 (S3) | Negative supply & sources | V– is negative rail reference; S1–S3 complete 8-channel set - all sources rated for rail-to-rail voltage swing |
| 13 (GND), 14 (V+), 15 (S5), 16 (S6) | Ground, positive supply & sources | GND is digital ground reference; V+ is positive rail; S5/S6 finalize 8-channel array - exposed pad must be soldered to PCB ground plane for thermal and EMI performance |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs from V– to V+ without clipping - essential for full-scale sensor interfacing in industrial control |
| Break-before-make switching | 50 ns minimum tOPEN - eliminates momentary short-circuit between adjacent channels during address changes |
| Low parasitic capacitance | CS(off) = 14 pF, CD(on) = 123 pF - reduces loading on high-impedance sources and preserves bandwidth in fast-switching circuits |
| Ultra-low power consumption | I+ = 17 μA typical at ±16.5 V - extends battery life in portable data loggers and handheld test equipment |
| Temperature-stable on-resistance | RDS(on) variation ≤ 6.7 Ω max. over –40 °C to +125 °C - ensures consistent channel matching across automotive and industrial environments |
Applications
| Medical Instrumentation | Data Acquisition Systems |
|---|---|
Use Scenario: Multiplexing ECG, EEG, and EMG electrode signals into a single high-resolution ADC channel. IC Role / Device Role / Timing Role: 8:1 analog multiplexer providing low-distortion, low-noise signal routing with <0.02% THD. Use Value: 3.2 Ω on-resistance and 0.5 Ω flatness preserve signal fidelity across biopotential frequency bands (0.05–1 kHz). | Use Scenario: Scanning multiple thermocouple, RTD, and strain gauge inputs in industrial PLC analog input modules. IC Role / Device Role / Timing Role: Precision analog switch enabling ratiometric measurements with matched channel resistance. Use Value: 0.2 Ω channel-to-channel RDS(on) matching minimizes gain error between sensor channels. |
| Test & Measurement Equipment | Battery-Powered Systems |
Use Scenario: Signal routing in automated test equipment (ATE) for semiconductor parametric testing. IC Role / Device Role / Timing Role: High-isolation (–60 dB OIRR) switch isolating DUT signals from measurement circuitry. Use Value: 14 pF source-off capacitance and –64 dB crosstalk prevent interference between adjacent test channels. | Use Scenario: Low-power sensor hub in wearable health monitors with multi-day battery life. IC Role / Device Role / Timing Role: Energy-efficient analog multiplexer with 17 μA supply current at ±15 V. Use Value: Sub-20 μA quiescent current and no VL supply requirement simplify power architecture in coin-cell-powered devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1408BRUZ | 4.5 Ω max. RDS(on) at ±15 V; 16-lead TSSOP package; higher 250 pC charge injection | Less suitable for ultra-low-error sample-and-hold due to higher charge injection and mismatch | Select DG1408EN-T1-GE4 when on-resistance flatness (<0.7 Ω max.) and charge injection (<100 pC) are critical |
| MAX4617ESE+ | 6 Ω typical RDS(on); SO-16 package; only specified at +12 V single supply | Limited to single-supply systems; not rated for ±15 V operation or extended temperature range | Select DG1408EN-T1-GE4 for dual-supply industrial designs requiring –40 °C to +125 °C operation |
Compared with ADG1408BRUZ and MAX4617ESE+, DG1408EN-T1-GE4 delivers superior on-resistance flatness (0.5 Ω vs. ≥1.2 Ω), lower charge injection (100 pC vs. ≥250 pC), and guaranteed dual-supply operation across –40 °C to +125 °C - making it optimal for high-accuracy, wide-temperature, rail-to-rail analog multiplexing.
Availability
DG1408EN-T1-GE4 is available at Aetrix Electronics and suitable for medical instrumentation, industrial data acquisition, and test equipment requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for DG1408EN-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-performance analog switches, MOSFETs, and precision resistors.
The DG1408EN-T1-GE4 belongs to Vishay's precision analog multiplexer product line, engineered for low-distortion, rail-to-rail signal routing in high-accuracy measurement and control systems.
FAQ
What supply voltages does the DG1408EN-T1-GE4 support?
The DG1408EN-T1-GE4 supports dual supplies from ±4.5 V to ±16.5 V and single supplies from +4.5 V to +24 V. It is fully specified at ±15 V, +12 V, and ±5 V operating points, with rail-to-rail analog signal handling across the entire supply range. The device requires no separate logic supply (VL), and its digital inputs are compatible with 0.8 V / 2 V TTL/CMOS thresholds.
Does the DG1408EN-T1-GE4 support bidirectional signal flow?
Yes, the DG1408EN-T1-GE4 supports fully bidirectional analog signal conduction between any source (S1–S8) and drain (D) terminal. This allows flexible use as either a multiplexer (multiple inputs → one output) or demultiplexer (one input → multiple outputs), provided external logic manages address sequencing and enable control.
What is the maximum continuous current rating for the DG1408EN-T1-GE4?
The DG1408EN-T1-GE4 is rated for 250 mA maximum continuous switch current at TA = 25 °C in the QFN16 package. At 125 °C ambient, the rating reduces to 100 mA. These values assume proper PCB thermal design, including connection of the exposed pad to a sufficient copper area for heat dissipation.
How does the break-before-make feature work in the DG1408EN-T1-GE4?
The DG1408EN-T1-GE4 guarantees break-before-make timing with a minimum tOPEN of 50 ns under typical conditions. This ensures that the previously selected channel disconnects completely before the newly addressed channel connects, preventing transient short-circuits between adjacent inputs - critical for avoiding signal corruption in multi-sensor systems.
Is the DG1408EN-T1-GE4 suitable for battery-powered applications?
Yes, the DG1408EN-T1-GE4 is optimized for battery-powered systems: it draws only 17 μA typical positive supply current at ±16.5 V, requires no VL supply, and features low charge injection (100 pC) and low on-resistance (3.2 Ω) to minimize power loss and sampling error - making it ideal for portable data loggers and handheld medical devices.
DG1408EN-T1-GE4 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):
- 4.7Ohm
- Channel-to-Channel Matching (ΔRon):
- 200mOhm
- Voltage - Supply, Single (V+):
- 4.5V ~ 24V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 16.5V
- Switch Time (Ton, Toff) (Max):
- 150ns, 120ns
- -3db Bandwidth:
- 46MHz
- Charge Injection:
- 100pC
- Channel Capacitance (CS(off), CD(off)):
- 14pF, 89pF
- Current - Leakage (IS(off)) (Max):
- 200pA
- Crosstalk:
- -64dB @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (4x4)
DG1408EN-T1-GE4 FAQ
1.How can I place an order for DG1408EN-T1-GE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG1408EN-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 DG1408EN-T1-GE4 reliable?
The price and inventory of DG1408EN-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 DG1408EN-T1-GE4 is usually 5 days.
3.What payment methods are accepted for DG1408EN-T1-GE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG1408EN-T1-GE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG1408EN-T1-GE4?
DG1408EN-T1-GE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG1408EN-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 DG1408EN-T1-GE4?
For technical support, including DG1408EN-T1-GE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG1408EN-T1-GE4 requirements.
6.How does Aetrix verify that DG1408EN-T1-GE4 is sourced from the original manufacturer or authorized distributors?
All DG1408EN-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 DG1408EN-T1-GE4 meets industry standards.
7.What is the process for return or replacement of DG1408EN-T1-GE4?
All DG1408EN-T1-GE4 units undergo pre-shipment inspection (PSI). If there is an issue with DG1408EN-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 DG1408EN-T1-GE4 part is unused and in its original packaging.
Return procedure for DG1408EN-T1-GE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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