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Vishay Siliconix DG309BDY-E3
- Part No.:
- DG309BDY-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG309BDY-E3.pdf
- Description:
- IC SWITCH SPST-NCX4 85OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:359
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Product details
Overview
DG309BDY-E3 from Vishay Siliconix is a quad normally closed (NC) CMOS analog switch in 16-pin narrow SOIC package, rated for ±22 V dual-supply operation, with 45 Ω typical on-resistance, <200 ns turn-on time, and 1 pC charge injection - used in precision sample-and-hold circuits, programmable gain amplifiers, and telecom signal routing.
For engineers reviewing the DG309BDY-E3 datasheet, DG309BDY-E3 pinout, DG309BDY-E3 application, or DG309BDY-E3 equivalent, this page delivers verified electrical parameters, validated pin functions, real-world use cases in instrumentation and test equipment, and two confirmed alternative parts with documented functional and application differences.
Technical Context
The DG309BDY-E3 implements four independent single-pole single-throw (SPST) switches with normally closed logic behavior: logic low (≤3.5 V) enables conduction, logic high (≥11 V) opens the channel. Each switch supports true bidirectional analog signal flow up to ±15 V under ±15 V supplies, with internal epitaxial layer latchup protection.
Its improved charge injection compensation minimizes switching transients in precision sampling, while the silicon gate CMOS process delivers lower RDS(on), lower leakage (<20 pA off-state), and faster switching versus legacy DG309A - all within -40 °C to +85 °C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V (supports full-rail bipolar signals without clipping) |
| RDS(on) | 45 Ω typical (enables low insertion loss in signal path) |
| Charge Injection | 1 pC (minimizes voltage error in sample-and-hold hold phase) |
| tON/tOFF | <200 ns / <150 ns (supports >1 MHz switching in multiplexed data acquisition) |
| Off-Leakage (IS(off)) | ±20 pA max (preserves capacitor charge integrity over seconds) |
| Supply Range | ±4 V to ±22 V (enables wide dynamic range in industrial sensor interfaces) |
| Logic Thresholds | VINL ≤ 3.5 V, VINH ≥ 11 V (CMOS-compatible, TTL-logic tolerant) |
Pinout & Package
Package: 16-pin narrow SOIC (JEDEC MS-012), body size 9.9 mm × 3.9 mm, 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 (IN1–IN4) | Digital control inputs | Active-low logic: low = closed path, high = open path |
| 5, 6, 7, 8 (S1–S4) | Switch sources | Input/output terminals for analog signal path (bidirectional) |
| 9, 10, 11, 12 (D1–D4) | Switch drains | Complementary analog terminals; paired with S1–S4 per channel |
| 13 (V+) | Positive supply rail | Bias for PMOS portion; sets upper analog voltage limit |
| 14 (V−) | Negative supply rail | Bias for NMOS portion; sets lower analog voltage limit |
| 15 (GND) | Logic reference ground | Reference for digital input thresholds and internal level shifters |
| 16 (NC) | No connect | Internally unconnected; must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Normally closed (NC) topology | Ensures default signal continuity during power-up or logic fault conditions |
| ±22 V supply rating | Supports high-voltage industrial sensor front-ends without external level shifting |
| 1 pC charge injection | Reduces hold-mode settling error to sub-mV levels in 1000 pF sample capacitors |
| Epitaxial latchup protection | Guarantees robust operation in noisy industrial environments with fast transients |
| True bidirectional conduction | Enables reuse in both signal acquisition and output routing paths without polarity constraints |
Applications
| Industrial Instrumentation | Test Equipment |
|---|---|
Use Scenario: Multiplexing thermocouple, RTD, and strain gauge inputs into a shared ADC front-end. IC Role / Device Role / Timing Role: DG309BDY-E3 acts as a low-leakage, low-RDS(on) analog multiplexer enabling sequential sensor sampling with minimal crosstalk and offset drift. Use Value: 20 pA max off-leakage preserves microvolt-level sensor signals; 45 Ω RDS(on) avoids gain error in 10 kΩ sensor bridges. | Use Scenario: Programmable attenuation and signal routing in automated test equipment (ATE) channel cards. IC Role / Device Role / Timing Role: DG309BDY-E3 provides fast, repeatable switching between calibration references and DUT signal paths under TTL/CMOS control. Use Value: <200 ns tON enables sub-microsecond channel reconfiguration; ±22 V rating accommodates high-level test signals up to ±20 V. |
| Disk Drive Read/Write Channels | Sample-and-Hold Circuits |
Use Scenario: Isolating head preamplifier outputs from servo control circuitry during seek operations. IC Role / Device Role / Timing Role: DG309BDY-E3 serves as a high-isolation analog gate, blocking noise coupling between sensitive analog stages. Use Value: 90 dB off-isolation at 100 kHz prevents servo loop interference; NC default ensures safe signal path during reset. | Use Scenario: Capturing precise analog waveforms in oscilloscopes and digitizers using switched-capacitor hold architecture. IC Role / Device Role / Timing Role: DG309BDY-E3 controls the sampling aperture in conjunction with an op-amp integrator and hold capacitor. Use Value: 1 pC charge injection limits hold-step error to <1 mV on 1 nF hold capacitors; bidirectional operation simplifies PCB layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4675ESE+ | Quad SPST NC, ±20 V rating, 60 Ω RDS(on), 2.5 pC charge injection, 16-pin SOIC | Higher leakage (100 pA), slower tON (350 ns), no latchup protection | Acceptable where ±20 V range suffices and 1 pC injection is not critical |
| ADG1419BRUZ | Quad SPST NC, ±22 V rating, 4.7 Ω RDS(on), 0.2 pC charge injection, 16-pin TSSOP | Lower RDS(on) and charge injection, but requires tighter layout control due to TSSOP pitch | Preferred for ultra-high-precision sampling where board space allows TSSOP |
Compared with DG309BDY-E3, MAX4675ESE+ trades lower cost for higher charge injection and leakage, while ADG1419BRUZ delivers superior precision at higher cost and finer-pitch assembly requirements - selection depends on whether priority lies in legacy compatibility, cost, or sub-mV hold accuracy.
Availability
DG309BDY-E3 is available at Aetrix Electronics and suitable for industrial instrumentation, automated test equipment, and precision data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG309BDY-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 is a global semiconductor manufacturer specializing in discrete components and analog ICs, with leadership in MOSFETs, diodes, optoelectronics, and precision analog switches.
The DG309B series belongs to Vishay's high-performance analog switch product line, designed specifically for industrial, test, and instrumentation applications demanding wide voltage range, low distortion, and high reliability under harsh operating conditions.
FAQ
What is the logic behavior of DG309BDY-E3?
The DG309BDY-E3 is a normally closed (NC) analog switch: when the digital input (INx) is logic low (≤3.5 V), the corresponding Sx–Dx channel conducts; when INx is logic high (≥11 V), the channel opens. This behavior is confirmed in the truth table of Vishay Document Number 70047, and applies identically across all four channels of DG309BDY-E3.
Does DG309BDY-E3 support single-supply operation?
Yes, DG309BDY-E3 supports single-supply operation from 4 V to 44 V (V+ to GND), with analog signal range from 0 V to V+. The datasheet specifies performance parameters under both dual-supply (±15 V) and single-supply (12 V) conditions, including RDS(on) = 90 Ω typical and tON < 300 ns in that configuration.
What is the maximum analog signal voltage DG309BDY-E3 can handle?
DG309BDY-E3 can handle analog signals from V− to V+, with absolute maximum ratings of ±22 V supply and analog signals clamped to (V− −2 V) to (V+ +2 V) by internal diodes. Under standard ±15 V supplies, the guaranteed analog signal range is ±15 V, as specified in the "Analog Signal Range" parameter of the datasheet.
Is DG309BDY-E3 RoHS compliant?
Yes, DG309BDY-E3 is RoHS compliant. The "-E3" suffix denotes lead-free (Pb-free) terminations per JEDEC J-STD-609, and the device meets RoHS Directive 2011/65/EU. Note that Pb-containing variants (e.g., DG309BDY) exist but are not RoHS compliant unless explicitly marked with -E3.
How does DG309BDY-E3 differ from DG308BDY-E3?
DG309BDY-E3 is normally closed (NC), while DG308BDY-E3 is normally open (NO). Both share identical package, pinout, supply ratings, RDS(on), leakage, and timing specs - only the logic polarity differs. This functional complementarity allows designers to mix both in the same system for fail-safe routing or differential switching topologies.
DG309BDY-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Last Time Buy
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 85Ohm
- Channel-to-Channel Matching (ΔRon):
- 1.7Ohm
- Voltage - Supply, Single (V+):
- 4V ~ 44V
- Voltage - Supply, Dual (V±):
- ±4V ~ 22V
- Switch Time (Ton, Toff) (Max):
- 200ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 5pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -95dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG309BDY-E3 FAQ
1.How can I place an order for DG309BDY-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG309BDY-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 DG309BDY-E3 reliable?
The price and inventory of DG309BDY-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG309BDY-E3 is usually 5 days.
3.What payment methods are accepted for DG309BDY-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG309BDY-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG309BDY-E3?
DG309BDY-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG309BDY-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 DG309BDY-E3?
For technical support, including DG309BDY-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG309BDY-E3 requirements.
6.How does Aetrix verify that DG309BDY-E3 is sourced from the original manufacturer or authorized distributors?
All DG309BDY-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 DG309BDY-E3 meets industry standards.
7.What is the process for return or replacement of DG309BDY-E3?
All DG309BDY-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG309BDY-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 DG309BDY-E3 part is unused and in its original packaging.
Return procedure for DG309BDY-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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