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Vishay Siliconix DG9431EDY-GE3
- Part No.:
- DG9431EDY-GE3
- Manufacturer:
- Vishay Siliconix
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG9431EDY-GE3.pdf
- Description:
- IC SWITCH SPDT X 1 30OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,716
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Product details
Overview
DG9431EDY-GE3 from Vishay Siliconix is a low-voltage single-pole/double-throw (SPDT) analog switch in SOIC-8 package, designed for high-performance signal routing in portable systems. It operates from +2.7 V to +5 V, delivers 20 Ω typical on-resistance at 5 V, 35 ns turn-on time, and 1 pC charge injection - enabling precision sample-and-hold and battery-powered RF/data-path switching.
For engineers reviewing the DG9431EDY-GE3 datasheet, DG9431EDY-GE3 pinout, DG9431EDY-GE3 application, or DG9431EDY-GE3 equivalent, key selection criteria include break-before-make timing guarantee, ±20 mA continuous current rating, TSOP-6/SOIC-8 dual-package availability, RoHS-compliant matte tin terminations, and 2000 V HBM ESD protection per Method 3015.7.
Technical Context
The DG9431EDY-GE3 implements a monolithic CMOS SPDT switch fabricated on Vishay's BCD-15 low-voltage process, with epitaxial layer latchup prevention. Its logic interface accepts TTL/CMOS-compatible inputs (0.8 V low, 2.4 V high), and guarantees break-before-make operation to prevent signal shorting during state transitions.
All terminals support analog signals from 0 V to V+ (up to +5 V), with bidirectional conduction when on and blocking up to supply rail when off. Internal clamping diodes limit input/output voltages exceeding V+ or GND, requiring external current limiting per absolute maximum ratings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7 V to +5 V - enables direct integration into 3.3 V and 5 V logic-supplied portable systems without level shifting |
| rDS(on) @ V+ = 5 V | 20 Ω typ - ensures minimal signal attenuation and distortion in audio, sensor, and data acquisition paths |
| tON / tOFF | 35 ns / 20 ns - supports high-speed multiplexing in instrumentation and communication front-ends |
| Charge Injection | 1 pC - critical for low-error sample-and-hold and ADC driver applications where voltage glitch must be minimized |
| Off-Leakage Current | ±100 pA max - preserves signal integrity in high-impedance sensor interfaces and precision bias networks |
| ESD Rating | >2000 V HBM - provides robust handling margin during PCB assembly and field operation |
| Break-Before-Make | Guaranteed - eliminates momentary short-circuit risk between NO and NC paths during switching |
Pinout & Package
Package: SOIC-8 (Narrow Body, 150 mil), RoHS-compliant matte tin terminations, -40 °C to +85 °C operating range.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Digital control input | Active-high logic: '1' connects COM to NO; '0' connects COM to NC; TTL/CMOS compatible thresholds |
| 2 (NO) | Normally-open switch terminal | Open-circuit path when IN = 0; connected to COM when IN = 1; bidirectional analog signal path |
| 3 (COM) | Common analog terminal | Central signal node routed to either NO or NC; supports full-rail analog swing (0 V to V+) |
| 4 (GND) | Analog/digital ground reference | Return path for logic and analog circuits; must be low-impedance to minimize noise coupling |
| 5 (NC) | Normally-closed switch terminal | Connected to COM when IN = 0; open when IN = 1; not internally connected elsewhere |
| 6 (V+) | Positive power supply | Supplies switch core and logic; must be bypassed locally with ≥0.1 µF ceramic capacitor |
| 7, 8 | No Connect (NC) | Internally unconnected; left floating or tied to GND per layout best practice - no electrical function |
Key Features
| Feature | Design Value |
|---|---|
| Low on-resistance flatness | 2 Ω max variation across 1–3 V COM voltage range - maintains consistent gain and linearity in variable-input circuits |
| Low channel-on leakage | ±200 pA max at room temperature - avoids DC offset drift in high-gain amplifier feedback paths |
| Low off-isolation | -74 dB at 1 MHz - suppresses crosstalk between adjacent channels in multi-signal routing applications |
| Small signal capacitance | 7 pF NC/NO off-capacitance - minimizes high-frequency loading and bandwidth reduction in RF/analog paths |
| Power supply current | 1 µA max - enables always-on configuration in ultra-low-power wake-up or monitoring circuits |
Applications
| Battery-Powered Test Equipment | Portable Medical Sensors |
|---|---|
Use Scenario: Handheld multimeter or signal analyzer selecting between multiple input ranges or calibration references. IC Role / Device Role / Timing Role: SPDT analog switch routing differential sensor outputs or reference voltages to ADC front-end. Use Value: 20 Ω rDS(on) and 1 pC charge injection preserve measurement accuracy; 35 ns switching enables rapid auto-ranging. | Use Scenario: Wearable ECG or pulse oximeter conditioning analog biosignals before digitization. IC Role / Device Role / Timing Role: Low-leakage analog multiplexer selecting between electrode pairs or gain stages in analog front-end. Use Value: ±100 pA off-leakage prevents baseline drift; 2000 V ESD protection withstands clinical handling environments. |
| Cellular Baseband Signal Routing | Industrial Data Acquisition Modules |
Use Scenario: LTE/5G handset baseband IC selecting between antenna diversity paths or filter banks. IC Role / Device Role / Timing Role: High-speed SPDT switch managing RF-adjacent analog control lines and DC bias paths. Use Value: Break-before-make guarantee prevents transient shorts; 20 Ω on-resistance minimizes insertion loss in bias networks. | Use Scenario: Modular PLC I/O card routing multiple thermocouple or RTD inputs to shared signal conditioning circuitry. IC Role / Device Role / Timing Role: Precision analog switch isolating sensor inputs during calibration or channel scanning. Use Value: Full-rail 0–5 V analog range accommodates industrial sensor spans; SOIC-8 footprint simplifies automated assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617EUA+ | Higher rDS(on): 35 Ω typ @ 5 V; 10 ns faster tOFF (10 ns); requires separate logic supply (VL) | Optimized for ultra-fast digital control loops; less suitable for low-distortion analog paths due to higher on-resistance | Select when sub-20 ns switching is mandatory and on-resistance tolerance >30 Ω is acceptable |
| ADG741BRMZ | Lower leakage: ±1 pA typ; same 20 Ω rDS(on); smaller 6-lead SOT-23 package; no break-before-make guarantee | Better for femtoampere-level sensor nodes; unsuitable where guaranteed break-before-make is required for safety-critical routing | Select for ultra-low-leakage applications where PCB space is constrained and timing coordination is managed externally |
Compared with MAX4617EUA+ and ADG741BRMZ, the DG9431EDY-GE3 uniquely balances low on-resistance, guaranteed break-before-make, and robust ESD protection in a standard SOIC-8 - making it preferred for portable instrumentation and medical devices requiring both precision and reliability.
Availability
DG9431EDY-GE3 is available at Aetrix Electronics and suitable for battery-operated test equipment, portable medical sensors, cellular baseband routing, and industrial data acquisition modules requiring stable component supply across extended production lifecycles.
Supply support for DG9431EDY-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 MOSFETs, diodes, optoelectronics, and analog switches, with emphasis on high-reliability, high-efficiency power and signal solutions.
The DG9431EDY-GE3 belongs to Vishay's low-voltage analog switch product line, engineered specifically for portable, battery-constrained systems demanding low power, small size, and rail-to-rail signal integrity.
FAQ
What is the maximum analog signal voltage range supported by the DG9431EDY-GE3?
The DG9431EDY-GE3 supports analog signals from 0 V to V+, where V+ ranges from +2.7 V to +5 V. At V+ = 5 V, the full analog range is 0 V to +5 V. Signals exceeding V+ or dropping below GND are clamped by internal diodes, so external current limiting is required to stay within ±20 mA continuous rating per terminal.
Does the DG9431EDY-GE3 require external pull-up or pull-down resistors on its IN pin?
No, the DG9431EDY-GE3 does not require external pull-up or pull-down resistors on the IN pin. Its logic inputs are TTL/CMOS compatible with defined thresholds (≤0.8 V for logic low, ≥2.4 V for logic high at V+ = 5 V), and input current is limited to ±1 µA across temperature - allowing direct connection to microcontroller GPIO or FPGA outputs without additional biasing.
Is break-before-make timing guaranteed for the DG9431EDY-GE3, and what is the typical value?
Yes, break-before-make timing is guaranteed for the DG9431EDY-GE3. The datasheet specifies a minimum break interval (td) of 3 ns and maximum of 10 ns at V+ = 5 V and room temperature. This guarantee is built into the internal logic design and verified across process corners - ensuring no overlap between NO and NC conduction states during switching transitions.
Can the DG9431EDY-GE3 be used with a 3.3 V supply, and how does performance change versus 5 V operation?
Yes, the DG9431EDY-GE3 is fully specified for 3.3 V operation. At V+ = 3.3 V, rDS(on) increases to 30 Ω typ (vs. 20 Ω at 5 V), tON extends to 50 ns (vs. 35 ns), and charge injection remains ≤1 pC. All logic thresholds scale proportionally, maintaining reliable switching - making it ideal for mixed-voltage 3.3 V systems without performance compromise in most portable applications.
What is the thermal derating behavior of the DG9431EDY-GE3 above 75 °C?
The DG9431EDY-GE3 has a thermal derating factor of 6.5 mW/°C above 75 °C ambient. Its SOIC-8 package has a rated power dissipation of 400 mW at ≤75 °C. Above that, allowable power drops linearly - e.g., at 100 °C ambient, max dissipation is reduced to 400 mW − (25 °C × 6.5 mW/°C) = 237.5 mW - requiring careful thermal design in enclosed or high-temperature industrial deployments.
DG9431EDY-GE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 1:2
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 30Ohm
- Channel-to-Channel Matching (ΔRon):
- 400mOhm
- Voltage - Supply, Single (V+):
- 2.7V ~ 12V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 75ns, 50ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 7pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
DG9431EDY-GE3 FAQ
1.How can I place an order for DG9431EDY-GE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG9431EDY-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 DG9431EDY-GE3 reliable?
The price and inventory of DG9431EDY-GE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG9431EDY-GE3 is usually 5 days.
3.What payment methods are accepted for DG9431EDY-GE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG9431EDY-GE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG9431EDY-GE3?
DG9431EDY-GE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG9431EDY-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 DG9431EDY-GE3?
For technical support, including DG9431EDY-GE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG9431EDY-GE3 requirements.
6.How does Aetrix verify that DG9431EDY-GE3 is sourced from the original manufacturer or authorized distributors?
All DG9431EDY-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 DG9431EDY-GE3 meets industry standards.
7.What is the process for return or replacement of DG9431EDY-GE3?
All DG9431EDY-GE3 units undergo pre-shipment inspection (PSI). If there is an issue with DG9431EDY-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 DG9431EDY-GE3 part is unused and in its original packaging.
Return procedure for DG9431EDY-GE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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