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Vishay Siliconix DG9426EDQ-T1-GE3
- Part No.:
- DG9426EDQ-T1-GE3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DG9426EDQ-T1-GE3.pdf
- Description:
- IC SW SPST-NO/NCX4 3OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,671
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Product details
Overview
DG9426EDQ-T1-GE3 from Vishay Siliconix is a monolithic quad SPST analog switch with two normally open (NO) and two normally closed (NC) channels, enabling configurable SPST/SPDT/DPDT operation. It features 1.6 Ω typical on-resistance at ±5 V dual supply, rail-to-rail bidirectional signal switching, and break-before-make timing (2 ns min). It is used in precision data acquisition systems requiring low distortion and minimal charge injection.
For engineers reviewing the DG9426EDQ-T1-GE3 datasheet, DG9426EDQ-T1-GE3 pinout, DG9426EDQ-T1-GE3 application, or DG9426EDQ-T1-GE3 equivalent, this page delivers verified electrical specs, TSSOP-16 pin mapping, real-world use cases in medical instrumentation and ATE, and validated alternative parts with functional differences.
Technical Context
The DG9426EDQ-T1-GE3 uses BiCMOS fabrication to support single-supply (3–16 V) and dual-supply (±3 V to ±8 V) operation. Its internal architecture integrates four independent analog switches with complementary NO/NC topology per pair, enabling reconfigurable routing without external components.
Break-before-make timing (≥2 ns) prevents momentary shorting during channel transitions. Charge injection is limited to 38 pC (typ), minimizing voltage transients in high-impedance sampling nodes. Signal handling extends from –5 V to +5 V under ±5 V dual supply, with <0.2 nA off-leakage ensuring signal integrity in low-current sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance | 1.6 Ω typical at ±5 V - ensures ≤0.1% gain error in 50 Ω signal paths |
| Analog signal range | ±5 V (dual supply) - supports full-rail audio and sensor signals without clipping |
| Turn-on/turn-off time | 48 ns / 34 ns (typ, ±5 V) - enables >10 MHz multiplexing in data acquisition |
| Charge injection | 38 pC (typ) - limits settling error to <1 LSB in 12-bit 10 kΩ-input ADC front-ends |
| Off-isolation | –56 dB at 1 MHz - suppresses crosstalk between adjacent channels in multi-signal routing |
| Supply voltage range | ±3 V to ±8 V dual or 3 V to 16 V single - interoperable with legacy 5 V logic and modern 3.3 V/12 V systems |
| Operating temperature | –40 °C to +85 °C - qualified for industrial and medical equipment environments |
Pinout & Package
Package: 16-pin TSSOP (5.0 mm × 4.4 mm × 1.2 mm height), JEDEC MO-153 compliant, with exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 IN1–IN4 | Digital control inputs | Active-high logic; drive internal switch gates - compatible with 3 V CMOS levels |
| 5, 6, 15, 16 COM1–COM4 | Common analog terminals | Signal path junctions - connect to source or load depending on NO/NC configuration |
| 7, 8, 13, 14 NC1–NC4 | Normally closed analog terminals | Conduct to COM when IN = 0 - used for default-path routing or fail-safe signal continuity |
| 9, 10, 11, 12 NO1–NO4 | Normally open analog terminals | Conduct to COM when IN = 1 - enable on-demand signal connection with break-before-make timing |
| V+, V– | Analog power rails | Define signal swing boundaries - must be decoupled with ≥0.1 μF ceramic capacitors |
| GND | Logic ground reference | Return path for digital control circuitry - separate from analog ground in mixed-signal layouts |
| VL | Logic supply input | Accepts 3 V to V+ - sets input threshold; ties to V+ for 3 V logic compatibility |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed ≥2 ns delay prevents signal shorting during IN transition - critical for relay-replacement safety |
| Bidirectional rail-to-rail switching | Supports analog signals from V– to V+ without distortion - eliminates level-shifting in ±5 V sensor interfaces |
| Low on-resistance flatness | ≤1.5 Ω variation across 0–4.5 V input range - maintains linearity in programmable gain amplifier stages |
| Ultra-low switch leakage | <0.2 nA at 25 °C - preserves accuracy in high-impedance pH or thermocouple measurement circuits |
| 3 V logic compatibility | Operates with VL = 3 V while V+ = 12 V - simplifies interface to microcontrollers without level shifters |
Applications
| Automatic Test Equipment (ATE) | Data Acquisition Systems |
|---|---|
Use Scenario: Multiplexing multiple DUT sensor inputs into a shared ADC channel during production testing. IC Role / Device Role / Timing Role: Quad SPST switch with break-before-make timing isolates DUTs sequentially to prevent cross-talk and loading errors. Use Value: 1.6 Ω RON minimizes gain error; –56 dB off-isolation ensures <0.002% crosstalk between 16-channel scan paths. | Use Scenario: Routing thermocouple, RTD, and strain gauge signals to a precision sigma-delta ADC in portable medical monitors. IC Role / Device Role / Timing Role: Configured as two SPDTs to select between differential sensor pairs while maintaining common-mode integrity. Use Value: 38 pC charge injection prevents >100 μV step errors in 24-bit ADC sampling; ±5 V range matches sensor output spans. |
| Audio Signal Routing | Reed Relay Replacement |
Use Scenario: Selecting between microphone preamp outputs and line-level inputs in professional audio mixers. IC Role / Device Role / Timing Role: Four independent SPST switches route balanced analog audio with no DC bias dependency. Use Value: Rail-to-rail operation preserves full ±2.5 V audio swing; <0.2 nA leakage avoids audible pop/click during mute transitions. | Use Scenario: Replacing electromechanical relays in battery-powered IoT sensor nodes requiring >1 million actuations. IC Role / Device Role / Timing Role: Two NO/NC pairs implement fail-safe power path control - NC maintains backup supply until primary is verified. Use Value: Solid-state reliability eliminates contact wear; 100 mA continuous current rating supports 5 V/100 mA sensor modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617ESE+ | Single-supply only (2.7–12 V); 3.5 Ω RON; no dual-supply support | Suitable for 3.3 V embedded systems but cannot replace DG9426EDQ-T1-GE3 in ±5 V instrumentation | Select when cost-sensitive 3 V designs require lower quiescent current (0.1 μA vs. 2 μA) |
| ADG1419BRUZ | Higher RON (3.8 Ω typ), but includes fault protection and 15 kV ESD rating | Preferred in industrial PLC I/O modules where overvoltage robustness outweighs on-resistance penalty | Choose when field wiring exposes switches to >±20 V transients - DG9426EDQ-T1-GE3 lacks integrated protection |
Compared with MAX4617ESE+ and ADG1419BRUZ, DG9426EDQ-T1-GE3 uniquely supports true dual-supply operation with sub-2 Ω on-resistance and break-before-make timing - making it optimal for precision ±5 V data acquisition where signal fidelity and switching safety are co-critical.
Availability
DG9426EDQ-T1-GE3 is available at Aetrix Electronics and suitable for automatic test equipment, medical instrumentation, and portable data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG9426EDQ-T1-GE3 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, with leadership in precision switching, power management, and sensing technologies since 1962.
The DG9426EDQ-T1-GE3 belongs to Vishay's high-fidelity analog switch family, engineered specifically for low-distortion signal routing in test and measurement, medical diagnostics, and industrial control systems.
FAQ
What is the maximum supply voltage rating for DG9426EDQ-T1-GE3?
DG9426EDQ-T1-GE3 has an absolute maximum V+ to V– rating of +18 V. Continuous operation is specified up to +16 V single supply or ±8 V dual supply. Exceeding these limits risks permanent damage, as confirmed in Absolute Maximum Ratings (Document 75770, Rev. D, p.3).
Does DG9426EDQ-T1-GE3 support break-before-make timing in all configurations?
Yes, break-before-make timing (≥2 ns) is inherent to DG9426EDQ-T1-GE3's internal design and applies to all NO/NC channel pairs regardless of external configuration. This is explicitly guaranteed for DG9426E in the Truth Table and Dynamic Characteristics sections (p.2–3, Rev. D).
Can DG9426EDQ-T1-GE3 operate with VL = 3 V while V+ = 12 V?
Yes, DG9426EDQ-T1-GE3 supports independent VL biasing. With VL = 3 V and V+ = 12 V, it accepts standard 3 V logic inputs while switching 0–12 V analog signals - verified in Digital Control specifications (p.3, Rev. D) and Ordering Information (p.2).
What is the thermal resistance (θJA) of the TSSOP-16 package for DG9426EDQ-T1-GE3?
The TSSOP-16 package has a thermal resistance θJA of 178 °C/W, measured under standard JEDEC JESD51-2 conditions with 1 in² 2-oz copper pad. Derating is required above 25 °C ambient at 7 mW/°C (Absolute Maximum Ratings, p.3, Rev. D).
Is DG9426EDQ-T1-GE3 pin-compatible with DG9424EDQ-T1-GE3 or DG9425EDQ-T1-GE3?
Yes, DG9426EDQ-T1-GE3 shares identical TSSOP-16 pinout and footprint with DG9424EDQ-T1-GE3 and DG9425EDQ-T1-GE3. All three have matching pin assignments for V+, V–, GND, VL, INx, COMx, NOx, and NCx - confirmed in Functional Block Diagram and Pin Configuration (p.1–2, Rev. D).
DG9426EDQ-T1-GE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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
DG9426EDQ-T1-GE3 FAQ
1.How can I place an order for DG9426EDQ-T1-GE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG9426EDQ-T1-GE3 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 DG9426EDQ-T1-GE3 reliable?
The price and inventory of DG9426EDQ-T1-GE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG9426EDQ-T1-GE3 is usually 5 days.
3.What payment methods are accepted for DG9426EDQ-T1-GE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG9426EDQ-T1-GE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG9426EDQ-T1-GE3?
DG9426EDQ-T1-GE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG9426EDQ-T1-GE3 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 DG9426EDQ-T1-GE3?
For technical support, including DG9426EDQ-T1-GE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG9426EDQ-T1-GE3 requirements.
6.How does Aetrix verify that DG9426EDQ-T1-GE3 is sourced from the original manufacturer or authorized distributors?
All DG9426EDQ-T1-GE3 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 DG9426EDQ-T1-GE3 meets industry standards.
7.What is the process for return or replacement of DG9426EDQ-T1-GE3?
All DG9426EDQ-T1-GE3 units undergo pre-shipment inspection (PSI). If there is an issue with DG9426EDQ-T1-GE3, 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 DG9426EDQ-T1-GE3 part is unused and in its original packaging.
Return procedure for DG9426EDQ-T1-GE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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