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Vishay Siliconix DG9424DQ-T1
- Part No.:
- DG9424DQ-T1
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DG9424DQ-T1.pdf
- Description:
- IC SWITCH SPST-NOX4 3OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,579
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Product details
Overview
DG9424DQ-T1 from Vishay Siliconix is a low-voltage, dual-supply, quad SPST analog switch with break-before-make action, 1.7 Ω on-resistance (typ.), 42 ns turn-on time, and ±3 V to ±6 V or 3 V to 12 V supply operation - used for precision audio/video signal routing in communication and data acquisition systems.
For engineers reviewing the DG9424DQ-T1 datasheet, DG9424DQ-T1 pinout, DG9424DQ-T1 application, or DG9424DQ-T1 equivalent, this page delivers verified electrical specs, TSSOP-16 pin mapping, real-world use cases, and two validated alternative parts for signal-switching designs requiring low RON, high off-isolation, and TTL/CMOS-compatible control.
Technical Context
The DG9424DQ-T1 implements four independent normally-open SPST switches using BiCMOS process technology, enabling simultaneous single- and dual-supply operation without external level-shifting. Its control logic is active-high (ON when IN = high), opposite to DG9425, and it guarantees break-before-make timing of ≥2 ns at room temperature.
Each channel supports analog signals from 0 V to V+ (single supply) or ±5 V (dual supply), with flat RON vs. voltage profile, 38 pC charge injection (typ.), and −56 dB off-isolation at 1 MHz - critical for minimizing crosstalk in multi-channel ATE and ADC front-end switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RON) | 1.7 Ω typ. at V+ = 12 V, ensuring minimal signal attenuation and distortion in low-impedance audio paths. |
| Turn-on time (tON) | 42 ns typ. at RL = 300 Ω, CL = 35 pF - enables reliable switching in high-speed data acquisition up to ~10 MSPS. |
| Analog signal range | 0 to 12 V (single supply) or ±5 V (dual supply) - supports full-rail signal handling in mixed-signal instrumentation. |
| Off-isolation (OIRR) | −56 dB at 1 MHz - suppresses inter-channel interference in dense PCB layouts with shared return paths. |
| Charge injection | 38 pC typ. - limits voltage glitch on sampled-hold nodes in precision ADC multiplexing applications. |
| ESD protection | 2000 V HBM - provides robustness against handling damage during board assembly and system integration. |
| Supply current (I+) | 0.02 μA typ. at room temperature - enables ultra-low-power standby in battery-operated test equipment. |
Pinout & Package
Package: 16-pin TSSOP (JEDEC MO-153, 5.0 mm × 6.4 mm × 1.1 mm), lead-free and RoHS-compliant per Vishay specification 74417.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Digital control input | Active-high logic inputs; drive internal gate drivers - compatible with 3.3 V/5 V TTL/CMOS levels. |
| COM1–COM4 | Analog common terminal | Switch output node; connects to load or downstream circuit - must remain within V− to V+ rail. |
| NO1–NO4 | Normally-open switch terminal | Open-circuit when IN = low; connects to COM when IN = high - no internal pull-down or pull-up. |
| V+, V− | Analog supply rails | Support dual ±3 V to ±6 V or single 3–12 V operation - decoupling required near pins for dynamic performance. |
| GND | Analog ground reference | Return path for analog signals and substrate bias - separate from digital ground if noise isolation needed. |
| VL | Logic supply reference | Bias for input buffers; typically tied to V+ or external 3.3 V/5 V - sets logic threshold and leakage behavior. |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed ≥2 ns delay between channel turn-off and adjacent turn-on - prevents momentary shorting in multiplexer sequencing. |
| Flat RON over signal range | ≤1.8 Ω variation across 0–12 V analog swing - preserves linearity in audio gain stages and sensor signal conditioning. |
| Low leakage current | 0.2 nA max. off-state leakage - avoids DC offset accumulation in high-impedance medical sensor front-ends. |
| High-frequency performance | −3 dB insertion loss at 190 MHz - supports video signal switching (e.g., HDMI auxiliary paths, CVBS routing). |
| TTL/CMOS compatibility | Input thresholds defined at 0.8 V / 2.4 V - eliminates need for external level translators in FPGA- or MCU-driven switch matrices. |
Applications
| Automatic Test Equipment | Data Acquisition Systems |
|---|---|
Use Scenario: Multiplexing DUT signals to shared digitizers or stimulus sources in rack-mounted ATE platforms. IC Role / Device Role / Timing Role: Quad SPST switch providing isolated signal paths with sub-50 ns switching and <1.8 Ω RON for minimal measurement error. Use Value: Enables 16:1 analog mux expansion via cascaded DG9424DQ-T1 units while maintaining channel-to-channel isolation >56 dB. | Use Scenario: Routing sensor outputs (thermocouples, strain gauges) to a single ADC in industrial PLC modules. IC Role / Device Role / Timing Role: Low-leakage analog switch selecting one of four differential inputs with <0.2 nA off-state current. Use Value: Prevents input bias current errors in 24-bit sigma-delta ADCs, preserving ENOB in high-resolution measurements. |
| Communication Systems | Audio Signal Routing |
Use Scenario: Selecting between multiple xDSL line drivers or PBX codec interfaces in telecom access equipment. IC Role / Device Role / Timing Role: High-bandwidth analog switch supporting 190 MHz −3 dB bandwidth for DSL upstream/downstream signal paths. Use Value: Maintains signal integrity across ADSL2+ and VDSL2 frequency bands without external buffering or impedance matching. | Use Scenario: Muting, mixing, or routing line-level stereo signals in professional audio mixers and broadcast gear. IC Role / Device Role / Timing Role: Low-distortion SPST switch with 1.7 Ω RON and <38 pC charge injection - minimizes pop/click artifacts during live switching. Use Value: Eliminates need for series coupling capacitors in DC-coupled audio paths, reducing component count and phase shift. |
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 (3.5 Ω typ.), slower tON (75 ns), but offers fault-protection and overvoltage tolerant inputs. | Suitable where input transients exceed supply rails - not required in controlled lab-grade ATE environments. | Choose MAX4617ESE+ only if input overvoltage protection is mandatory; DG9424DQ-T1 delivers superior speed and RON in clean-signal applications. |
| ADG1414BRUZ | Lower leakage (0.01 nA typ.), higher supply voltage (±15 V), but larger 16-lead TSSOP footprint and 100 ns tON. | Better for high-voltage industrial sensors; less optimal for high-speed, low-RON audio routing. | Select ADG1414BRUZ when extended voltage range or ultra-low leakage dominates design priorities over switching speed. |
Compared with MAX4617ESE+ and ADG1414BRUZ, the DG9424DQ-T1 offers the best balance of low on-resistance, fast switching, and compact TSSOP-16 packaging for cost-sensitive, high-fidelity signal routing - especially where dual-supply flexibility and 190 MHz bandwidth are essential.
Availability
DG9424DQ-T1 is available at Aetrix Electronics and suitable for automatic test equipment, data acquisition systems, and communication systems requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for DG9424DQ-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 semiconductor manufacturer specializing in discrete power MOSFETs, analog switches, diodes, and optoelectronics, with emphasis on high-reliability, high-performance components for industrial and communications markets.
The DG9424DQ-T1 belongs to Vishay's precision analog switch product line, designed specifically for low-RON, high-bandwidth signal routing in test, measurement, and telecom infrastructure where signal fidelity and timing accuracy are critical.
FAQ
What supply voltages does the DG9424DQ-T1 support?
The DG9424DQ-T1 supports single-supply operation from 3 V to 12 V and dual-supply operation from ±3 V to ±6 V. At V+ = 12 V and V− = 0 V, typical on-resistance is 1.7 Ω; at ±5 V, RON is 2.0 Ω. The VL pin may be tied to V+ or an external logic supply to set input thresholds, and all supplies require local ceramic decoupling per Vishay's layout guidelines.
Is the DG9424DQ-T1 pin-compatible with DG9425DQ-T1 or DG9426DQ-T1?
No, the DG9424DQ-T1 is not pin-compatible with DG9425DQ-T1 or DG9426DQ-T1. While all three share the same 16-pin TSSOP package and pinout numbering, their internal switch configurations differ: DG9424DQ-T1 has four normally-open switches with active-high control, DG9425DQ-T1 uses active-low logic, and DG9426DQ-T1 integrates two NO and two NC switches. Swapping them requires logic inversion or rework.
What is the maximum analog signal frequency supported by the DG9424DQ-T1?
The DG9424DQ-T1 maintains −3 dB insertion loss at 190 MHz under standard test conditions (RL = 300 Ω, CL = 35 pF). Its off-isolation remains −56 dB at 1 MHz, and crosstalk is −77 dB at the same frequency. For signals above 50 MHz, proper RF layout - including controlled-impedance traces, ground plane integrity, and minimized parasitic capacitance - is required to preserve these specifications in actual DG9424DQ-T1 implementations.
Does the DG9424DQ-T1 include ESD protection?
Yes, the DG9424DQ-T1 features 2000 V human-body-model (HBM) ESD protection on all pins, as specified in Vishay document 71807. This protection is integrated into the BiCMOS process and does not require external TVS devices for handling or board-level assembly. However, system-level ESD events exceeding 2 kV still require board-level protection per IEC 61000-4-2.
Can the DG9424DQ-T1 operate with a 3.3 V logic supply while using ±5 V analog supplies?
Yes, the DG9424DQ-T1 supports independent logic and analog supplies: VL may be set to 3.3 V while V+ = +5 V and V− = −5 V. Input thresholds scale with VL, so with VL = 3.3 V, logic high is ~2.4 V and logic low is ~0.8 V - fully compatible with 3.3 V FPGA or MCU GPIO. This configuration is validated in Vishay's dual-supply specifications table and maintains full RON, tON, and leakage performance.
DG9424DQ-T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- 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
DG9424DQ-T1 FAQ
1.How can I place an order for DG9424DQ-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG9424DQ-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 DG9424DQ-T1 reliable?
The price and inventory of DG9424DQ-T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG9424DQ-T1 is usually 5 days.
3.What payment methods are accepted for DG9424DQ-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG9424DQ-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG9424DQ-T1?
DG9424DQ-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG9424DQ-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 DG9424DQ-T1?
For technical support, including DG9424DQ-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG9424DQ-T1 requirements.
6.How does Aetrix verify that DG9424DQ-T1 is sourced from the original manufacturer or authorized distributors?
All DG9424DQ-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 DG9424DQ-T1 meets industry standards.
7.What is the process for return or replacement of DG9424DQ-T1?
All DG9424DQ-T1 units undergo pre-shipment inspection (PSI). If there is an issue with DG9424DQ-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 DG9424DQ-T1 part is unused and in its original packaging.
Return procedure for DG9424DQ-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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