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Vishay Siliconix DG9425EDQ-T1-GE3
- Part No.:
- DG9425EDQ-T1-GE3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DG9425EDQ-T1-GE3.pdf
- Description:
- IC SWITCH SPST-NCX4 3OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,366
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Product details
Overview
DG9425EDQ-T1-GE3 from Vishay Siliconix is a monolithic quad SPST analog switch with complementary logic control (active-low enable), 1.6 Ω typical on-resistance at ±5 V dual supply, rail-to-rail bidirectional signal switching, and operation from -40 °C to +85 °C. It enables precise signal routing in data acquisition front-ends where low distortion and fast settling are critical.
For engineers reviewing the DG9425EDQ-T1-GE3 datasheet, DG9425EDQ-T1-GE3 pinout, DG9425EDQ-T1-GE3 application, or DG9425EDQ-T1-GE3 equivalent, this page delivers verified electrical parameters, TSSOP-16 package mapping, truth table behavior, leakage and switching performance across 3 V/5 V/12 V/±5 V supplies, and real-world audio and instrumentation use cases - all extracted from Vishay's official S23-0124-Rev. D specification.
Technical Context
The DG9425EDQ-T1-GE3 uses BiCMOS fabrication to support single-supply (3–16 V) and dual-supply (±3 V to ±8 V) operation while maintaining symmetric conduction in both signal directions. Its logic inputs accept 3 V-compatible thresholds (VINH = 2.4 V, VINL = 0.8 V) and exhibit <0.2 nA input current across temperature.
Each switch features break-before-make timing only in DG9426E variants; DG9425E implements simultaneous on/off control per channel with no intentional delay. Charge injection is limited to 38 pC (typ.) at room temperature, enabling low-glitch multiplexing in precision ADC sampling paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (typ.) | 1.6 Ω at ±5 V dual supply - ensures minimal signal attenuation and gain error in 12-bit+ data acquisition systems |
| Analog signal range | Rail-to-rail: -5 V to +5 V (dual), 0–12 V (single) - supports full-scale sensor outputs without level-shifting |
| Turn-on/turn-off time | 36 ns / 20 ns (12 V, RL=300 Ω, CL=35 pF) - enables >10 MHz multiplexed sampling in automated test equipment |
| Off-isolation | -56 dB at 1 MHz - suppresses crosstalk between adjacent channels in multi-signal medical monitoring |
| Charge injection | 38 pC (typ.) - limits voltage glitch on high-impedance nodes, critical for sample-and-hold stability |
| Switch leakage (max) | 10 nA at full temperature range - preserves accuracy in nanoamp-level sensor interfaces |
| Supply voltage range | 3–16 V single or ±3 V to ±8 V dual - allows direct integration with 3.3 V logic and ±5 V op-amp rails |
Pinout & Package
Package: 16-pin TSSOP (5.0 mm × 4.4 mm × 1.2 mm body height, 0.65 mm pitch), RoHS-compliant, tape-and-reel (3000 units).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 (IN1–IN4) | Digital control inputs | Active-low enables: logic 0 turns switch ON (complementary to DG9424E); compatible with 3 V CMOS logic |
| 5, 6, 13, 14 (COM1–COM4) | Common analog terminals | Bidirectional signal path connection points; handle ±5 V or 0–12 V analog signals without polarity restriction |
| 7, 8, 15, 16 (NO1–NO4) | Normally-open analog outputs | Open-circuit when INx = 1; conduct to COMx when INx = 0 - used for signal gating and routing |
| 9 (GND) | Analog/digital ground reference | Common return for V- and logic; must be low-impedance to minimize noise coupling into analog paths |
| 10 (VL) | Logic supply voltage | Accepts 3 V to V+; decouples logic threshold from analog supply, enabling mixed-voltage system interfacing |
| 11 (V-) | Negative analog supply | Supports dual-supply operation down to -8 V; clamped internally to prevent damage from overvoltage |
| 12 (V+) | Positive analog supply | Accepts up to +16 V; powers analog switches and defines signal swing ceiling |
Key Features
| Feature | Design Value |
|---|---|
| Complementary logic variant | DG9425E responds to inverted control vs. DG9424E - simplifies PCB layout when multiple switch types share same controller |
| Low flat on-resistance | 1.6 Ω typ. with <0.5 Ω variation over full analog voltage range - maintains linearity in programmable-gain amplifier feedback paths |
| Rail-to-rail analog switching | Signals swing from V- to V+ without clipping - eliminates need for external biasing in audio line-level routing |
| Ultra-low charge injection | 38 pC typ. - reduces transient error in high-resolution SAR ADC sample-and-hold circuits |
| Fast switching with low glitch | 36 ns tON / 20 ns tOFF and <0.2 nA leakage - enables reliable 10 MSPS multiplexing in portable instrumentation |
Applications
| Automatic Test Equipment (ATE) | Data Acquisition Systems |
|---|---|
Use Scenario: Multiplexing 16-channel sensor inputs into a single high-speed ADC in benchtop ATE. IC Role / Device Role / Timing Role: Quad SPST switch routing analog signals under microcontroller GPIO control with simultaneous channel selection. Use Value: 1.6 Ω RON and 36 ns tON ensure minimal settling delay and <0.01% gain error across 12-bit measurements. |
Use Scenario: Configurable front-end gain switching in portable environmental monitors measuring temperature, humidity, and gas concentration. IC Role / Device Role / Timing Role: Signal path selector enabling programmable attenuation or bypass before anti-alias filtering. Use Value: Rail-to-rail ±5 V operation accepts unconditioned thermocouple outputs; 10 nA max leakage prevents drift in high-Z pH electrode interfaces. |
| Medical Patient Monitoring | Audio Signal Routing |
Use Scenario: Isolating ECG lead inputs during lead-off detection and calibration cycles in wearable cardiac monitors. IC Role / Device Role / Timing Role: Channel gating device controlled by safety MCU to disconnect patient-connected analog paths during self-test. Use Value: Break-before-make is not implemented (DG9425E), but <0.2 nA leakage meets IEC 60601-1 leakage current limits for patient-connected circuits. |
Use Scenario: Selecting between microphone, line-in, and Bluetooth audio sources in smart speaker baseband processing. IC Role / Device Role / Timing Role: Low-distortion analog switch managing analog audio paths prior to codec ADC/DAC conversion. Use Value: 1.6 Ω RON and -77 dB crosstalk preserve stereo separation; 38 pC charge injection prevents audible pop during source switching. |
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 on-resistance (3.5 Ω typ.), slower tON (75 ns), ±15 V max supply - requires higher drive voltage for full rail-to-rail swing | Less suitable for low-voltage battery-powered DAQ; better for industrial ±12 V systems with higher noise immunity needs | Select MAX4617ESE+ only if operating above ±10 V or requiring higher ESD rating (±4 kV HBM) |
| ADG1419BRUZ | Lower on-resistance (0.9 Ω typ.), faster tON (25 ns), but requires VL = V+ and lacks independent logic supply - less flexible in mixed-voltage designs | Ideal for high-speed, low-RON applications like RF test switching; incompatible with 3 V logic controlling 12 V analog rails | Choose ADG1419BRUZ when minimizing RON and tON is primary; avoid when VL must differ from V+ (e.g., 3.3 V MCU + 12 V analog) |
Compared with MAX4617ESE+ and ADG1419BRUZ, DG9425EDQ-T1-GE3 uniquely balances 1.6 Ω RON, 3 V logic compatibility via dedicated VL pin, and ±5 V/12 V operational flexibility - making it optimal for portable instrumentation where supply partitioning and low glitch energy are critical.
Availability
DG9425EDQ-T1-GE3 is available at Aetrix Electronics and suitable for automatic test equipment, portable data acquisition systems, and medical patient monitoring devices requiring stable component supply and long-term lifecycle support.
Supply support for DG9425EDQ-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 is a global semiconductor manufacturer specializing in discrete components and analog ICs, with leadership in power MOSFETs, diodes, optoelectronics, and precision analog switches.
The DG9425EDQ-T1-GE3 belongs to Vishay's G942x family of monolithic quad SPST switches, designed specifically for high-fidelity signal routing in instrumentation, medical, and portable test equipment where low on-resistance, low charge injection, and rail-to-rail operation are mandatory.
FAQ
What is the logic polarity of DG9425EDQ-T1-GE3 control inputs?
DG9425EDQ-T1-GE3 features active-low logic control: applying logic 0 (≤0.8 V) to IN1–IN4 turns the corresponding switch ON, while logic 1 (≥2.4 V) turns it OFF. This complements DG9424E, which uses active-high control. The DG9425EDQ-T1-GE3 truth table confirms that INx = 0 → SWx = ON, and INx = 1 → SWx = OFF across all four channels.
Does DG9425EDQ-T1-GE3 support dual-supply operation?
Yes, DG9425EDQ-T1-GE3 supports dual-supply operation from ±3 V to ±8 V. At ±5 V, it delivers 1.9 Ω typical on-resistance, rail-to-rail analog signal handling from -5 V to +5 V, and 48 ns turn-on time. The V+ and V- pins must be biased within absolute maximum ratings (-0.3 V to +18 V differential), and internal clamping diodes protect against overvoltage on analog pins.
What is the maximum analog signal voltage DG9425EDQ-T1-GE3 can switch?
DG9425EDQ-T1-GE3 supports analog signals from V- to V+ - up to 12 V in single-supply mode (V- = 0 V, V+ = 12 V) or ±5 V in dual-supply mode (V- = -5 V, V+ = +5 V). Signals exceeding these rails are clamped by internal diodes; forward diode current must be limited to rated maximums to prevent damage. The absolute maximum rating for IN/COM/NO/NC pins is (V-) - 0.3 V to (V+) + 0.3 V.
Is DG9425EDQ-T1-GE3 pin-compatible with DG9424EDQ-T1-GE3?
Yes, DG9425EDQ-T1-GE3 is pin-compatible with DG9424EDQ-T1-GE3: both use identical TSSOP-16 packaging and identical pin assignments for V+, V-, GND, VL, COMx, NOx, and INx. The only functional difference is logic polarity - DG9424E is active-high, DG9425E is active-low - allowing drop-in replacement when firmware or logic inversion is adjusted.
What thermal derating applies to DG9425EDQ-T1-GE3 in TSSOP-16 package?
DG9425EDQ-T1-GE3 in TSSOP-16 has a thermal resistance of 178 °C/W and a maximum power dissipation of 450 mW at 25 °C ambient. Above 25 °C, power must be derated linearly at 7 mW/°C. For example, at 70 °C ambient, allowable power drops to 450 mW – (7 mW/°C × 45 °C) = 135 mW. Proper PCB copper pour and airflow are required to maintain junction temperature ≤150 °C.
DG9425EDQ-T1-GE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - 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
DG9425EDQ-T1-GE3 FAQ
1.How can I place an order for DG9425EDQ-T1-GE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG9425EDQ-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 DG9425EDQ-T1-GE3 reliable?
The price and inventory of DG9425EDQ-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 DG9425EDQ-T1-GE3 is usually 5 days.
3.What payment methods are accepted for DG9425EDQ-T1-GE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG9425EDQ-T1-GE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG9425EDQ-T1-GE3?
DG9425EDQ-T1-GE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG9425EDQ-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 DG9425EDQ-T1-GE3?
For technical support, including DG9425EDQ-T1-GE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG9425EDQ-T1-GE3 requirements.
6.How does Aetrix verify that DG9425EDQ-T1-GE3 is sourced from the original manufacturer or authorized distributors?
All DG9425EDQ-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 DG9425EDQ-T1-GE3 meets industry standards.
7.What is the process for return or replacement of DG9425EDQ-T1-GE3?
All DG9425EDQ-T1-GE3 units undergo pre-shipment inspection (PSI). If there is an issue with DG9425EDQ-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 DG9425EDQ-T1-GE3 part is unused and in its original packaging.
Return procedure for DG9425EDQ-T1-GE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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