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Vishay Siliconix DG309CJ
- Part No.:
- DG309CJ
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG309CJ.pdf
- Description:
- IC SWITCH SPST-NCX4 85OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,809
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Product details
Overview
DG309CJ from Vishay Siliconix is a quad monolithic SPST CMOS analog switch in normally closed (NC) configuration, rated for ±15 V analog signal range, 60 Ω on-resistance, and 130 ns turn-on time. It operates with single or dual supplies, supports rail-to-rail analog signals, and is used in high-speed multiplexing within portable instrumentation and communication systems.
For engineers reviewing the DG309CJ datasheet, DG309CJ pinout, DG309CJ application, or DG309CJ equivalent, this device is selected for low-leakage, bidirectional analog switching where NC default state, fast settling, and low power dissipation (30 nW) are critical in battery-powered and precision signal-path designs.
Technical Context
The DG309CJ implements four independent SPST switches fabricated using Vishay's PLUS-40 CMOS process, enabling 44 V breakdown voltage and latch-up immunity via epitaxial isolation. Each channel conducts equally in both directions when on and blocks up to supply rails when off.
Logic inputs are high-voltage CMOS compatible (logic "0" ≤ 3.5 V, logic "1" ≥ 11 V), supporting direct interface with TTL/CMOS without level-shifting. The device guarantees ±15 V analog input range under ±15 V dual-supply operation and maintains sub-100 nA off-leakage across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V - supports full rail-to-rail signal handling with ±15 V dual supply; no clamping required within supply bounds. |
| Drain-Source On-Resistance | 60 Ω typical - ensures minimal signal attenuation and voltage drop in precision analog paths. |
| Turn-On Time | 130 ns - enables reliable sampling and multiplexing at >1 MHz switching rates. |
| Off-Leakage Current | ±0.1 nA typical - preserves signal integrity in high-impedance sensor and measurement circuits. |
| Power Dissipation | 30 nW - allows integration into ultra-low-power portable and battery-operated systems. |
| Digital Input Threshold | Logic "0" ≤ 3.5 V, Logic "1" ≥ 11 V - ensures noise-immune control with standard logic families without external biasing. |
| Supply Voltage Range | ±15 V max (V+ to V−), 44 V breakdown - supports robust operation in industrial and test equipment environments. |
Pinout & Package
Package: 16-pin plastic DIP (JEDEC MS-012), 0.300″ wide body, lead pitch 0.100″, RoHS-compliant suffix -E3 available.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | IN1–IN4 (Digital Control Inputs) | Active-high logic inputs controlling respective switch states; NC default requires logic high to open. |
| 2, 6, 10, 14 | S1–S4 (Switch Sources) | Input-side terminals of SPST switches; connected to analog signal sources in NC configuration. |
| 3, 7, 11, 15 | D1–D4 (Switch Drains) | Output-side terminals; carry switched analog signals to load or next stage when closed. |
| 4 | V− | Negative supply rail; must be referenced to system ground or negative bias source. |
| 8 | GND | Digital ground reference; separate from analog ground but tied at single point per layout best practice. |
| 12 | V+ | Positive supply rail; supports single-supply operation when GND = V−, or dual-supply with V− < 0 V. |
| 16 | NC | No connect - internally unconnected; must remain floating or grounded per PCB design rules. |
Key Features
| Feature | Design Value |
|---|---|
| Normally Closed (NC) Switch Configuration | Ensures fail-safe signal continuity during power loss or control failure-critical in safety-critical analog monitoring paths. |
| Bidirectional Analog Conduction | Enables flexible signal routing without polarity constraints-ideal for AC-coupled and differential signal applications. |
| Low Charge Injection (−10 pC) | Minimizes transient glitches during switching-essential for precision data acquisition and sample-and-hold circuits. |
| High Off-Isolation (78 dB @ 500 kHz) | Provides strong channel-to-channel crosstalk suppression in multi-channel multiplexers and audio routing. |
| Epitaxial Latch-Up Protection | Guarantees robust operation under transient overvoltage and ESD events-no external protection needed in most cases. |
Applications
| Portable Instrumentation | Communication Systems |
|---|---|
Use Scenario: Battery-powered handheld multimeter selecting between voltage, current, and resistance measurement paths. IC Role / Device Role / Timing Role: DG309CJ acts as NC analog multiplexer front-end, maintaining default connection until digital command opens path for alternate function. Use Value: Low 30 nW quiescent power extends battery life; ±15 V range accommodates full-scale analog inputs without scaling. |
Use Scenario: RF transceiver baseband signal routing between ADC/DAC and antenna interface ICs. IC Role / Device Role / Timing Role: DG309CJ serves as low-distortion analog switch matrix for I/Q channel selection and calibration loopback. Use Value: 60 Ω RDS(on) and 78 dB off-isolation preserve SNR and minimize intermodulation distortion in sensitive receive paths. |
| Computer Peripherals | High-Speed Multiplexing |
Use Scenario: USB-C docking station managing analog audio line-out, microphone input, and legacy VGA sync signals. IC Role / Device Role / Timing Role: DG309CJ provides isolated analog signal gating with NC default for plug-and-play detection and hot-swap safety. Use Value: 130 ns tON supports real-time audio switching; ±15 V tolerance handles legacy VGA sync swing beyond 0–3.3 V logic levels. |
Use Scenario: Automated test equipment scanning 16-channel thermocouple inputs into a single high-resolution ADC. IC Role / Device Role / Timing Role: DG309CJ functions as precision multiplexer with guaranteed low leakage (<100 pA) to prevent thermal EMF drift errors. Use Value: Sub-100 pA off-leakage ensures <0.1 µV offset error over 10 MΩ source impedance-meeting Class A DAQ accuracy requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617CPE+ | Single-supply only (up to +12 V), 65 Ω RDS(on), 125 ns tON; no dual-supply support. | Limited to positive-rail systems; unsuitable for ±15 V signal conditioning or bipolar op-amp interfaces. | Select when cost-sensitive, single-rail designs dominate and bipolar analog range is not required. |
| ADG1404BRUZ | Quad SPST, NC, 4.7 Ω RDS(on), 150 ns tON, ±15 V rating, but requires 3 V logic control (not 11 V high-threshold). | Needs level-shifter for 5 V/12 V logic; superior on-resistance but higher power and larger TSSOP package. | Prefer when ultra-low on-resistance is critical and logic interface can accommodate 3 V control. |
Compared with MAX4617CPE+ and ADG1404BRUZ, the DG309CJ uniquely combines NC default, ±15 V dual-supply compatibility, high-threshold logic interface, and DIP packaging-making it optimal for legacy test gear, industrial analog backplanes, and designs requiring no PCB redesign for 12 V logic control.
Availability
DG309CJ is available at Aetrix Electronics and suitable for portable instrumentation, communication systems, computer peripherals, and high-speed multiplexing requiring stable component supply across extended product lifecycles.
Supply support for DG309CJ 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 semiconductors and passive components, with leadership in analog switching, power MOSFETs, and precision resistors.
The DG309CJ belongs to Vishay's PLUS-40 CMOS analog switch family, engineered for high-voltage tolerance, low leakage, and robust operation in industrial test, medical, and communications equipment.
FAQ
What is the default switch state of DG309CJ?
The DG309CJ is a normally closed (NC) analog switch: each of its four SPST channels conducts by default when no logic signal is applied to the INx pins. A logic high (≥11 V) at INx opens the corresponding switch. This behavior is confirmed in the truth table and functional description of the DG309CJ datasheet, and distinguishes it from the DG308A (NO version). DG309CJ's NC state ensures signal continuity during power-up, reset, or control loss.
Can DG309CJ operate from a single +15 V supply?
Yes, DG309CJ supports single-supply operation with V+ = +15 V and V− = GND (0 V), enabling use in systems with only one positive rail. However, the analog input range is then limited to 0 V to +15 V-not ±15 V-and RDS(on) increases while switching speed decreases slightly versus dual-supply mode. DG309CJ's datasheet explicitly validates this configuration and specifies performance trade-offs in the Applications section.
What is the maximum allowable analog voltage at DG309CJ's S or D pins?
The absolute maximum analog voltage at any S or D pin is bounded by the supply rails: signals must remain between V− and V+, inclusive. With ±15 V supplies, the safe analog range is −15 V to +15 V. Exceeding these limits forward-biases internal clamping diodes, risking damage if current exceeds 20 mA. DG309CJ's Absolute Maximum Ratings table confirms this limit and specifies clamp current derating rules.
Does DG309CJ require external ESD protection?
No, DG309CJ incorporates static-protected logic inputs and uses an epitaxial layer that prevents latch-up-both features explicitly cited in the Benefits and Description sections of the DG309CJ datasheet. While external protection is always recommended in harsh environments, the device meets standard HBM ESD specifications per its manufacturing process and does not mandate external TVS or series resistors for typical board-level operation.
How does DG309CJ compare to DG309DY in terms of package and temperature range?
DG309CJ uses a 16-pin plastic DIP package rated for 0 °C to +70 °C operation, whereas DG309DY uses a 16-pin narrow SOIC package rated for −40 °C to +85 °C. Both share identical electrical specifications and pinout, but DG309CJ's DIP format supports through-hole prototyping and legacy board compatibility, while DG309DY targets surface-mount volume production and extended temperature applications. DG309CJ's package dimensions conform to JEDEC MS-012.
DG309CJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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
DG309CJ FAQ
1.How can I place an order for DG309CJ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG309CJ 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 DG309CJ reliable?
The price and inventory of DG309CJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG309CJ is usually 5 days.
3.What payment methods are accepted for DG309CJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG309CJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG309CJ?
DG309CJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG309CJ 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 DG309CJ?
For technical support, including DG309CJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG309CJ requirements.
6.How does Aetrix verify that DG309CJ is sourced from the original manufacturer or authorized distributors?
All DG309CJ 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 DG309CJ meets industry standards.
7.What is the process for return or replacement of DG309CJ?
All DG309CJ units undergo pre-shipment inspection (PSI). If there is an issue with DG309CJ, 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 DG309CJ part is unused and in its original packaging.
Return procedure for DG309CJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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