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Vishay Siliconix DG9426DQ-T1-E3
- Part No.:
- DG9426DQ-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DG9426DQ-T1-E3.pdf
- Description:
- IC SW SPST-NO/NCX4 3OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,871
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Product details
Overview
DG9426DQ-T1-E3 from Vishay Siliconix is a low-voltage, dual-supply, quad SPST analog switch with two normally open (NO) and two normally closed (NC) channels. It operates on single supplies (2.7–12 V) or dual supplies (±3 to ±6 V), delivers 1.7 Ω typical on-resistance at 12 V, 42 ns turn-on time, and supports audio/video signal routing in precision instrumentation.
For engineers reviewing the DG9426DQ-T1-E3 datasheet, DG9426DQ-T1-E3 pinout, DG9426DQ-T1-E3 application, or DG9426DQ-T1-E3 equivalent, key selection criteria include break-before-make timing (2 ns min), ±5 V dual-supply crosstalk (-82 dB), and TSSOP-16 package compatibility with high-density PCB layouts.
Technical Context
The DG9426DQ-T1-E3 implements BiCMOS process technology to enable simultaneous low RON and fast switching across wide supply ranges. Its internal architecture integrates level-shifted control logic for TTL/CMOS-compatible inputs and clamped ESD protection diodes on all analog pins (2000 V HBM).
Unlike DG9424/DG9425, the DG9426DQ-T1-E3 features asymmetric switch configuration: SW1/SW4 are NO while SW2/SW3 are NC, enabling true break-before-make operation with guaranteed 2 ns minimum delay between turn-off and turn-on transitions under ±5 V dual-supply conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 2.7–12 V single or ±3 to ±6 V dual - supports mixed-signal systems with shared rail constraints |
| RON (typ) | 1.7 Ω at V+ = 12 V - minimizes signal attenuation and THD in audio paths |
| tON/tOFF | 42 ns / 28 ns at 12 V - enables >10 MHz switching in data acquisition front-ends |
| OIRR / XTalk | -56 dB off-isolation / -82 dB crosstalk at 1 MHz - preserves channel integrity in multi-channel ADC sampling |
| Charge Injection | 38 pC (12 V) / 112 pC (±5 V) - limits voltage glitch amplitude in precision sample-hold circuits |
| ESD Rating | 2000 V HBM - reduces need for external protection in test equipment I/O stages |
| Leakage (max) | 10 nA at full temp range - maintains accuracy in high-impedance sensor interfaces |
Pinout & Package
Package: 16-pin TSSOP (5.00 × 6.40 mm, 0.65 mm pitch), JEDEC MO-153 compliant, thermal resistance 178 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Digital control input | Active-high logic drives SW1–SW4; IN1/IN4 control NO switches, IN2/IN3 control NC switches |
| COM1–COM4 | Analog common terminal | Signal path return for each switch; must remain within (V− − 0.3 V) to (V+ + 0.3 V) |
| NC1–NC4 | Normally closed analog terminal | Connected to COM when IN = 0; open when IN = 1 (SW2/SW3 only) |
| NO1–NO4 | Normally open analog terminal | Connected to COM when IN = 1; open when IN = 0 (SW1/SW4 only) |
| V+, V− | Analog supply rails | Support bidirectional analog signals spanning full rail-to-rail range (e.g., ±5 V) |
| VL | Logic supply reference | Decouples digital interface voltage (typically 3.3 V or 5 V) from analog supplies |
| GND | Ground reference | Common return for logic and substrate; requires low-impedance connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed 2 ns minimum tD prevents momentary shorting in relay-replacement applications |
| Flat RON vs. signal voltage | ≤1.5 Ω variation over full analog range - ensures linear gain in video signal paths |
| Low charge injection | 38 pC typical at 12 V - reduces settling error in 16-bit SAR ADC multiplexing |
| TTL/CMOS compatible inputs | 0.8 V / 2.4 V thresholds at VL = 5 V - eliminates level-shifter requirements in microcontroller interfaces |
| High off-isolation | -56 dB at 1 MHz - suppresses interference between RF and baseband channels in xDSL line cards |
Applications
| Automatic Test Equipment | Data Acquisition Systems |
|---|---|
Use Scenario: Multiplexing DUT signals to shared digitizer channels during functional testing. IC Role / Device Role / Timing Role: Quad SPST switch routing analog sensor outputs or power supply monitor lines with break-before-make sequencing. Use Value: 2 ns guaranteed tD prevents transient shorts during reconfiguration; 10 nA max leakage avoids DC offset errors in µV-level measurements. | Use Scenario: Channel selection in 16-channel industrial data loggers with ±10 V input range. IC Role / Device Role / Timing Role: Analog front-end multiplexer enabling sequential sampling of thermocouple, RTD, and voltage inputs. Use Value: ±5 V dual-supply operation matches sensor excitation rails; -82 dB crosstalk maintains 100 dB SNR across channels. |
| Audio Signal Routing | xDSL Line Cards |
Use Scenario: Selecting between microphone, line-in, and headphone output paths in professional audio mixers. IC Role / Device Role / Timing Role: Low-distortion analog switch handling 20 Hz–20 kHz signals with minimal RON variation. Use Value: 1.7 Ω RON and flat response preserve frequency balance; 2000 V ESD protects against user-handling transients. | Use Scenario: Separating upstream/downstream analog signals in ADSL2+ transceivers. IC Role / Device Role / Timing Role: High-isolation switch isolating POTS voice band from DSL data band during line activation. Use Value: -56 dB off-isolation at 1 MHz blocks DSL noise from entering voice codec; 190 MHz -3 dB bandwidth accommodates full ADSL spectrum. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617ESE+ | Higher RON (4.5 Ω typ), no NC/NO asymmetry, SO-16 package | Lacks break-before-make guarantee; suited for generic multiplexing where switch sequencing is software-controlled | Select when cost sensitivity outweighs need for hardware-enforced switching sequence |
| ADG1419BRUZ | Lower leakage (1 pA typ), higher supply rating (±15 V), TSSOP-16 but 1.27 mm pitch | Requires PCB redesign due to larger pitch; preferred for high-voltage medical instrumentation | Select when sub-nA leakage and extended voltage range justify layout change |
Compared with DG9426DQ-T1-E3, MAX4617ESE+ offers lower cost but sacrifices guaranteed break-before-make timing and dual-supply crosstalk performance, while ADG1419BRUZ provides superior leakage and voltage range at the expense of footprint compatibility and higher unit price.
Availability
DG9426DQ-T1-E3 is available at Aetrix Electronics and suitable for automatic test equipment, data acquisition systems, and audio signal routing requiring stable component supply across industrial temperature range (-40 °C to +85 °C).
Supply support for DG9426DQ-T1-E3 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 designs high-performance analog and discrete semiconductors using advanced silicon process technologies for signal integrity and power efficiency.
The DG9426DQ-T1-E3 belongs to Vishay's precision analog switch product line, engineered specifically for low-RON, high-speed signal routing in test, measurement, and communications infrastructure.
FAQ
What supply configurations does the DG9426DQ-T1-E3 support?
The DG9426DQ-T1-E3 supports single-supply operation from 2.7 V to 12 V and dual-supply operation from ±3 V to ±6 V. At ±5 V, it achieves 2 Ω typical on-resistance and -82 dB crosstalk. The VL pin allows independent logic-level referencing (e.g., 3.3 V MCU control with ±5 V analog rails), and all analog pins tolerate signals from (V− − 0.3 V) to (V+ + 0.3 V). This flexibility makes DG9426DQ-T1-E3 suitable for mixed-voltage system integration without level shifters.
How does the DG9426DQ-T1-E3 differ from DG9424 and DG9425?
The DG9426DQ-T1-E3 differs fundamentally in switch configuration: it contains two normally open (NO) and two normally closed (NC) switches, whereas DG9424 and DG9425 are fully NO with complementary logic control. DG9426DQ-T1-E3 guarantees break-before-make timing (tD ≥ 2 ns), critical for preventing signal contention during reconfiguration. DG9424/DG9425 truth tables show inverted logic responses, but neither provides NC functionality or hardware-enforced switching sequencing like DG9426DQ-T1-E3.
What is the maximum analog signal bandwidth supported by DG9426DQ-T1-E3?
The DG9426DQ-T1-E3 delivers -3 dB insertion loss at 190 MHz under 12 V single-supply conditions, confirming usable analog bandwidth up to ~280 MHz. This is enabled by low channel on-capacitance (89 pF typ) and flat RON across the signal range. At ±5 V dual supply, bandwidth remains robust due to symmetric rail operation, supporting high-fidelity video routing and broadband communication signals such as ADSL2+ and PABX trunk interfaces where DG9426DQ-T1-E3 maintains signal fidelity without external equalization.
Can DG9426DQ-T1-E3 be used in ±12 V systems?
No, DG9426DQ-T1-E3 is not rated for ±12 V operation. Its absolute maximum V+ to V− rating is +13 V, and dual-supply operation is specified only for ±3 V to ±6 V. Exceeding ±6 V risks permanent damage per the Absolute Maximum Ratings table. For ±12 V applications, consider higher-voltage alternatives like the ADG1419BRUZ (±15 V rated). Using DG9426DQ-T1-E3 beyond its specified dual-supply range violates reliability design margins and voids parametric guarantees including RON, leakage, and switching speed.
Does DG9426DQ-T1-E3 require external ESD protection?
No, DG9426DQ-T1-E3 integrates 2000 V HBM ESD protection on all pins, eliminating the need for external TVS diodes in most board-level implementations. Internal clamping diodes limit analog pin voltages to (V− − 0.3 V) and (V+ + 0.3 V), and forward diode current must be limited to rated values via series resistance if signals exceed rails. This integrated protection meets IEC 61000-4-2 Level 2 requirements and simplifies layout in automated test equipment where user-accessible connectors are present, reducing BOM count and PCB area versus discrete protection solutions.
DG9426DQ-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO/NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 3Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 3V ~ 16V
- Voltage - Supply, Dual (V±):
- ±3V ~ 8V
- Switch Time (Ton, Toff) (Max):
- 51ns, 35ns
- -3db Bandwidth:
- -
- Charge Injection:
- 38pC
- Channel Capacitance (CS(off), CD(off)):
- 49pF, 37pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -77dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
DG9426DQ-T1-E3 FAQ
1.How can I place an order for DG9426DQ-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG9426DQ-T1-E3 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 DG9426DQ-T1-E3 reliable?
The price and inventory of DG9426DQ-T1-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG9426DQ-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG9426DQ-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG9426DQ-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG9426DQ-T1-E3?
DG9426DQ-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG9426DQ-T1-E3 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 DG9426DQ-T1-E3?
For technical support, including DG9426DQ-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG9426DQ-T1-E3 requirements.
6.How does Aetrix verify that DG9426DQ-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG9426DQ-T1-E3 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 DG9426DQ-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG9426DQ-T1-E3?
All DG9426DQ-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG9426DQ-T1-E3, 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 DG9426DQ-T1-E3 part is unused and in its original packaging.
Return procedure for DG9426DQ-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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