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Vishay Siliconix DG309BDJ-E3
- Part No.:
- DG309BDJ-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG309BDJ-E3.pdf
- Description:
- IC SWITCH SPST-NCX4 85OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,653
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Product details
Overview
DG309BDJ-E3 from Vishay Siliconix is a quad, normally closed (NC), CMOS analog switch in 16-pin plastic DIP 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 and programmable gain amplifiers where low signal distortion and bi-directional analog switching are required.
For engineers reviewing the DG309BDJ-E3 datasheet, DG309BDJ-E3 pinout, DG309BDJ-E3 application, or DG309BDJ-E3 equivalent, this page delivers verified electrical specs, truth-table–aligned switching behavior, thermal derating guidance, RoHS-compliant termination details, and real-world design context for industrial instrumentation and test equipment signal routing.
Technical Context
The DG309BDJ-E3 implements four independent single-pole single-throw (SPST) switches with complementary logic control versus DG308B: logic "0" (≤3.5 V) enables conduction (ON), while logic "1" (≥11 V) disables (OFF). Each channel features true bi-directional analog signal handling up to ±22 V, supported by epitaxial layer latchup protection and internal clamping diodes limiting forward current to 30 mA.
Its silicon gate CMOS process delivers low leakage (±20 pA off-state), high off-isolation (90 dB at 100 kHz), and minimal crosstalk (95 dB), enabling use in high-precision DC-coupled paths. The device supports both dual-supply (±4 V to ±22 V) and single-supply (4 V to 44 V) operation, with guaranteed RDS(on) matching ≤2 % across channels at room temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V (full range under ±15 V supply; supports rail-to-rail analog signals without clipping) |
| RDS(on) | 45 Ω typical (low insertion loss; preserves signal integrity in 50 Ω–1 kΩ impedance systems) |
| Charge Injection | 1 pC (minimizes voltage step error in sample-and-hold hold capacitors ≤1 nF) |
| tON/tOFF | <200 ns / <150 ns (enables fast multiplexing in data acquisition at ≥1 MHz sampling rates) |
| Off-Leakage (IS(off)) | ±20 pA max (prevents drift in high-impedance sensor interfaces and integrator circuits) |
| Supply Range | ±4 V to ±22 V dual or 4 V to 44 V single (supports legacy ±15 V and modern low-voltage industrial rails) |
| OIRR | 90 dB at 100 kHz (rejects coupled noise between adjacent switched channels in dense PCB layouts) |
Pinout & Package
Package: 16-pin plastic DIP (JEDEC MS-012), 0.300" wide body, RoHS-compliant matte tin terminations (E3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 7 (IN1–IN4) | Digital control input | Active-low logic interface: ≤3.5 V = ON (closed); ≥11 V = OFF (open) for DG309B |
| 2, 4, 6, 8 (S1–S4) | Source terminal | Bi-directional analog I/O node; connects to load or signal path when switch is closed |
| 9, 11, 13, 15 (D1–D4) | Drain terminal | Bi-directional analog I/O node; symmetric to source; no intrinsic directionality |
| 10 | V− | Negative supply rail; must be connected for dual-supply operation or grounded for single-supply |
| 12 | GND | Digital ground reference; tied to V− in single-supply mode |
| 14 | V+ | Positive supply rail; sets upper analog voltage limit and powers internal level shifters |
| 16 | NC | No internal connection; left unconnected per datasheet; not usable as heat sink or bypass |
Key Features
| Feature | Design Value |
|---|---|
| Improved charge injection compensation | Reduces hold-step error to ≤1 mV in 1 nF sample capacitors, critical for 12-bit+ ADC front-ends |
| Epitaxial latchup protection | Enables robust operation in noisy industrial environments without system reset events |
| True bi-directional analog switching | Supports signal flow from drain-to-source or source-to-drain without performance degradation |
| Wide supply voltage tolerance | Operates reliably across ±4 V to ±22 V, eliminating need for external level-shifting in mixed-rail systems |
| Low dynamic power consumption | I+ and I− ≤5 µA ensures minimal quiescent loading on precision voltage references and regulators |
Applications
| Precision Sample-and-Hold Circuit | Programmable Gain Amplifier |
|---|---|
Use Scenario: Capturing transient analog waveforms in automated test equipment with sub-microsecond aperture time. IC Role / Device Role / Timing Role: DG309BDJ-E3 acts as the hold switch, closing during acquisition and opening to isolate the hold capacitor during conversion. Use Value: 1 pC charge injection limits hold-step error to <5 mV with 1000 pF capacitor, preserving 12-bit accuracy. | Use Scenario: Digitally selecting feedback resistor networks in lab-grade instrumentation amplifiers. IC Role / Device Role / Timing Role: DG309BDJ-E3 configures gain-setting resistors via TTL-compatible logic inputs, enabling software-controlled scaling. Use Value: 45 Ω RDS(on) introduces <0.05 % gain error in 10 kΩ feedback paths, maintaining calibration stability. |
| Industrial Data Acquisition Multiplexer | Communications Channel Switching |
Use Scenario: Routing multiple sensor outputs (thermocouples, RTDs) to a shared ADC in PLC modules. IC Role / Device Role / Timing Role: DG309BDJ-E3 serves as a low-leakage, high-isolation analog MUX stage before signal conditioning. Use Value: ±20 pA off-leakage prevents >1 µV offset drift in 10 MΩ sensor bridges over temperature range. | Use Scenario: Isolating transmit/receive paths in full-duplex analog modem designs. IC Role / Device Role / Timing Role: DG309BDJ-E3 provides bidirectional RF/line-level signal gating synchronized to protocol state machines. Use Value: 90 dB off-isolation at 100 kHz suppresses crosstalk between voiceband channels below audible threshold. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4675EPP+ | Higher RDS(on) (100 Ω typ), wider temp range (−40°C to +85°C same), but lower supply rating (±20 V max) | Less suitable for ±22 V signal routing; requires redesign if full ±22 V swing is needed | Select when lower cost and availability outweigh ±2 V headroom requirement |
| ADG419BNZ | Lower charge injection (0.2 pC), but higher RDS(on) (65 Ω typ) and narrower supply range (±15 V only) | Preferred for ultra-low-distortion S/H; unsuitable for systems requiring >±15 V analog range | Choose for 16-bit+ precision where charge injection dominates error budget |
Compared with DG309BDJ-E3, MAX4675EPP+ trades ±2 V supply margin for cost efficiency, while ADG419BNZ sacrifices voltage range to achieve 5× lower charge injection - making DG309BDJ-E3 the optimal balance of wide-range capability, low distortion, and industrial temperature compliance.
Availability
DG309BDJ-E3 is available at Aetrix Electronics and suitable for industrial instrumentation, test equipment, and communications systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant through-hole packaging.
Supply support for DG309BDJ-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 core expertise in power MOSFETs, diodes, optoelectronics, and precision analog switches.
The DG309B product line was designed specifically for high-fidelity analog signal routing in harsh industrial and test environments, emphasizing low distortion, latchup immunity, and extended voltage range over consumer-grade alternatives.
FAQ
What is the maximum analog signal voltage the DG309BDJ-E3 can switch without damage?
The DG309BDJ-E3 supports analog signals up to ±22 V when operated within its absolute maximum ratings. Signals exceeding V+ or V− are clamped by internal diodes; forward current must be limited to ≤30 mA to prevent damage. For continuous safe operation, analog inputs should remain within the specified supply rails (e.g., ±15 V with ±15 V supplies) to avoid triggering clamping action.
Does DG309BDJ-E3 require separate digital and analog grounds?
No - DG309BDJ-E3 uses a single GND pin (Pin 12) that serves as the reference for both digital control inputs and analog signal paths. In mixed-signal PCB layouts, this pin should connect to a unified low-impedance ground plane; splitting grounds is unnecessary and may increase noise coupling due to ground bounce between domains.
Can DG309BDJ-E3 operate from a single 12 V supply?
Yes - DG309BDJ-E3 supports single-supply operation from 4 V to 44 V. With V+ = 12 V and V− = GND, it delivers an analog signal range of 0 V to 12 V and maintains functional logic thresholds (VINH ≥ 11 V, VINL ≤ 3.5 V). RDS(on) increases to 90 Ω typical under these conditions, as confirmed in the single-supply specification table.
How does the DG309BDJ-E3 differ from the DG308BDJ-E3 in circuit behavior?
DG309BDJ-E3 is normally closed (NC): logic "0" closes the switch, logic "1" opens it. DG308BDJ-E3 is normally open (NO): logic "0" opens, logic "1" closes. Their pinouts and electrical specs are identical; only the truth table and default state differ. This makes them direct functional complements in designs requiring paired NO/NC switching, such as relay emulation or fail-safe signal paths.
Is thermal derating required for DG309BDJ-E3 in continuous operation?
Yes - for ambient temperatures above 75 °C, DG309BDJ-E3 must be derated at 6.5 mW/°C (per the 16-pin plastic DIP package rating). At 100 °C ambient, maximum allowable power dissipation drops from 470 mW to 307.5 mW. Layouts must ensure adequate airflow or heatsinking if operating near thermal limits, especially in enclosed industrial enclosures.
DG309BDJ-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:
- Through Hole
- Supplier Device Package:
- 16-PDIP
DG309BDJ-E3 FAQ
1.How can I place an order for DG309BDJ-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG309BDJ-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 DG309BDJ-E3 reliable?
The price and inventory of DG309BDJ-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG309BDJ-E3 is usually 5 days.
3.What payment methods are accepted for DG309BDJ-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG309BDJ-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG309BDJ-E3?
DG309BDJ-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG309BDJ-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 DG309BDJ-E3?
For technical support, including DG309BDJ-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG309BDJ-E3 requirements.
6.How does Aetrix verify that DG309BDJ-E3 is sourced from the original manufacturer or authorized distributors?
All DG309BDJ-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 DG309BDJ-E3 meets industry standards.
7.What is the process for return or replacement of DG309BDJ-E3?
All DG309BDJ-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG309BDJ-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 DG309BDJ-E3 part is unused and in its original packaging.
Return procedure for DG309BDJ-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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