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Vishay Siliconix DG304BDJ
- Part No.:
- DG304BDJ
- Manufacturer:
- Vishay Siliconix
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
DG304BDJ.pdf
- Description:
- IC SWITCH SPST-NOX2 50OHM 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,474
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Product details
Overview
DG304BDJ from Vishay Siliconix is a monolithic CMOS analog switch with four independent SPST channels, designed for low-level signal routing in instrumentation and process control systems. It supports ±15 V analog signal range, exhibits 30 Ω typical RDS(on), achieves 110 ns turn-on time, and operates with micropower consumption (30 nW), enabling use in battery-powered programmable gain amplifiers.
For engineers reviewing the DG304BDJ datasheet, DG304BDJ pinout, DG304BDJ application, or DG304BDJ equivalent, key selection criteria include rail-to-rail analog voltage handling (-15 V to +15 V), guaranteed break-before-make switching, latchup immunity via epitaxial layer, and compatibility with CMOS logic levels (0 V / ≥11 V).
Technical Context
The DG304BDJ implements four independent single-pole single-throw (SPST) switches fabricated on Vishay's PLUS-40 CMOS process, delivering low power dissipation while maintaining fast switching performance. Each channel conducts bidirectionally when on and blocks up to the full supply voltage when off, with internal clamping diodes limiting analog signals exceeding V+ or V−.
It guarantees break-before-make operation only in DG307B per datasheet; DG304BDJ operates as independent SPST switches without inter-channel timing coordination. Digital inputs accept CMOS-compatible thresholds (≤3.5 V for logic 0, ≥11 V for logic 1), and single-supply operation is supported by tying V− to GND for positive-only applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V - supports full rail-to-rail signal handling across entire input voltage span |
| RDS(on) | 30 Ω typical - ensures minimal signal attenuation and distortion in precision analog paths |
| tON | 110 ns - enables high-speed multiplexing in data acquisition and test equipment |
| Supply Current (I+, I−) | ±0.001 µA typical - contributes negligible load to dual-supply rails in low-power systems |
| Off-Leakage (IS(off), ID(off)) | ±0.1 nA max - preserves signal integrity in high-impedance sensor interfaces |
| Charge Injection | 30 pC - limits voltage glitch at switch output during state transitions |
| Off-Isolation (OIRR) | 62 dB at 500 kHz - suppresses crosstalk between inactive and active channels |
Pinout & Package
Package: 14-pin plastic DIP (dual in-line package), body width 7.62 mm (E), length 19.30 mm (D), height 5.08 mm (A), RoHS-compliant lead finish available as DG304BDJ-E3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V+ | Positive supply rail - must be ≥11 V for logic high recognition and defines upper analog limit |
| 2 | S1 | Source terminal of Switch 1 - bidirectional conduction path when enabled |
| 3 | S2 | Source terminal of Switch 2 - electrically isolated from S1 when off |
| 4 | D1 | Drain terminal of Switch 1 - connects to S1 when logic input IN1 = high |
| 5 | D2 | Drain terminal of Switch 2 - connects to S2 when logic input IN2 = high |
| 6 | IN1 | Digital control input for Switch 1 - CMOS-compatible (0 V / ≥11 V) |
| 7 | IN2 | Digital control input for Switch 2 - independent of IN1; no interlock logic |
| 8 | GND | Ground reference - used as return for negative supply when V− = 0 V |
| 9 | V− | Negative supply rail - sets lower analog limit; may be tied to GND for single-supply use |
| 10 | D3 | Drain terminal of Switch 3 - not present in DG304BDJ (DG306B/DG307B only) |
| 11 | D4 | Drain terminal of Switch 4 - not present in DG304BDJ (DG306B/DG307B only) |
| 12 | S3 | Source terminal of Switch 3 - not present in DG304BDJ (DG306B/DG307B only) |
| 13 | S4 | Source terminal of Switch 4 - not present in DG304BDJ (DG306B/DG307B only) |
| 14 | NC | No connect - internally unconnected; must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional analog conduction | Each SPST channel passes signals equally in either direction when ON, simplifying PCB routing in AC-coupled paths |
| Latchup immunity | Epitaxial layer construction prevents destructive latchup under transient overvoltage conditions |
| Rail-to-rail analog range | Supports input signals from V− to V+, eliminating need for level-shifting in ±15 V systems |
| Low charge injection (30 pC) | Minimizes output voltage glitches in sample-and-hold and multiplexer-based ADC front-ends |
| CMOS logic compatibility | Accepts standard CMOS voltage thresholds (≤3.5 V low, ≥11 V high), interfacing directly with microcontrollers |
Applications
| Programmable Gain Amplifier | Low-Level Sensor Multiplexing |
|---|---|
Use Scenario: Digitally selecting feedback resistor values in op-amp circuits to achieve discrete gain steps (e.g., 1×, 10×, 100×). IC Role / Device Role / Timing Role: DG304BDJ acts as low-distortion, low-leakage analog switch controlling resistor network configuration. Use Value: 30 Ω RDS(on) and ±0.1 nA off-leakage preserve gain accuracy and DC offset stability across gain ranges. |
Use Scenario: Routing outputs from multiple low-output-impedance sensors (e.g., thermocouples, strain gauges) into a shared ADC channel. IC Role / Device Role / Timing Role: DG304BDJ serves as a low-crosstalk, high-isolation analog multiplexer with independent channel control. Use Value: 62 dB off-isolation and 14 pF off-capacitance minimize signal coupling and settling time between channel selections. |
| Battery-Powered Data Logger | Industrial Process Monitoring Interface |
Use Scenario: Enabling/disabling analog signal paths in portable environmental monitoring units powered by coin-cell or Li-ion batteries. IC Role / Device Role / Timing Role: DG304BDJ functions as a micropower signal gate, reducing system standby current. Use Value: 30 nW quiescent power and sub-µA supply currents extend battery life without compromising switching speed (110 ns tON). |
Use Scenario: Isolating field transducer inputs (4–20 mA loops, RTDs) from sensitive measurement circuitry in PLC analog input modules. IC Role / Device Role / Timing Role: DG304BDJ provides robust analog switching with ±15 V tolerance and internal clamping diodes. Use Value: ±15 V analog range and (V− −2 V) to (V+ +2 V) clamping protect downstream circuitry from transient overvoltages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617CPD+ | Single-supply only (1.8–12 V); 60 Ω RDS(on); 35 ns tON; no dual-supply support | Not suitable for ±15 V rail-to-rail signal routing; limited to unipolar systems | Select when ultra-fast switching in low-voltage battery systems outweighs dual-supply requirement |
| ADG1404BRUZ | 4-channel SPST; ±15 V rating; 4.7 Ω RDS(on); 125 ns tON; requires external VLOGIC pin | Lower on-resistance improves gain accuracy but higher cost and tighter layout constraints | Choose for precision instrumentation where <5 Ω RDS(on) and guaranteed 12-bit linearity are critical |
Compared with MAX4617CPD+ and ADG1404BRUZ, DG304BDJ uniquely balances ±15 V analog range, 30 Ω RDS(on), and micropower operation in a legacy-compatible DIP package-making it optimal for retrofitting industrial analog signal conditioning without redesigning power architecture.
Availability
DG304BDJ is available at Aetrix Electronics and suitable for programmable gain amplifiers, low-level sensor multiplexing, and battery-powered data loggers requiring stable component supply across extended temperature ranges (-40 °C to +85 °C).
Supply support for DG304BDJ 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 expertise in power management, sensing, and signal conditioning technologies.
The DG304BDJ belongs to Vishay's PLUS-40 CMOS analog switch family, engineered for instrumentation, communications, and process control applications demanding low power, fast switching, and rail-to-rail analog performance.
FAQ
What is the maximum analog signal voltage the DG304BDJ can handle?
The DG304BDJ supports an analog signal range of ±15 V when operated with V+ = +15 V and V− = −15 V. Signals exceeding these rails are clamped by internal diodes, with forward current limited to 30 mA. Operation outside absolute maximum ratings risks permanent damage, and the device is rated for continuous analog voltages from V− to V+ under normal conditions.
Does the DG304BDJ support single-supply operation?
Yes, the DG304BDJ supports single-supply operation by connecting V− to GND. In this configuration, the analog input range becomes 0 V to V+, with V+ typically set to +15 V. Logic inputs retain CMOS compatibility (≤3.5 V for low, ≥11 V for high), and all specifications-including RDS(on) and leakage-remain valid per the datasheet's single-supply test conditions.
Is the DG304BDJ pin-compatible with DG306BDJ or DG307BDJ?
No, DG304BDJ is not pin-compatible with DG306BDJ or DG307BDJ. While all three share the same 14-pin DIP footprint, their internal channel configurations differ: DG304BDJ has two independent SPST switches (S1/D1, S2/D2), DG306BDJ has four SPST switches (S1–S4/D1–D4), and DG307BDJ implements two SPDT switches. Pin functions for pins 10–13 differ across variants, requiring PCB redesign for substitution.
What is the purpose of the NC (no-connect) pin on DG304BDJ?
Pin 14 of the DG304BDJ is designated NC (no connect) and is internally unconnected. Vishay recommends leaving it unconnected or grounding it to reduce noise coupling-however, it must never be driven or used as a supply or signal path. This pin exists for mechanical compatibility with other devices in the DG3xxB family and does not affect DG304BDJ functionality.
How does the DG304BDJ prevent latchup in harsh environments?
The DG304BDJ incorporates an epitaxial layer in its PLUS-40 CMOS fabrication process, which eliminates parasitic thyristor structures that cause latchup. This design ensures immunity to destructive latchup events even under transient overvoltage or ESD stress, making DG304BDJ suitable for industrial environments where reliability under electrical stress is critical.
DG304BDJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 50Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±15V
- Switch Time (Ton, Toff) (Max):
- 110ns, 70ns (Typ)
- -3db Bandwidth:
- -
- Charge Injection:
- 30pC
- Channel Capacitance (CS(off), CD(off)):
- 14pF, 14pF
- Current - Leakage (IS(off)) (Max):
- 5nA
- Crosstalk:
- -74dB @ 500kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
DG304BDJ FAQ
1.How can I place an order for DG304BDJ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG304BDJ 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 DG304BDJ reliable?
The price and inventory of DG304BDJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG304BDJ is usually 5 days.
3.What payment methods are accepted for DG304BDJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG304BDJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG304BDJ?
DG304BDJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG304BDJ 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 DG304BDJ?
For technical support, including DG304BDJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG304BDJ requirements.
6.How does Aetrix verify that DG304BDJ is sourced from the original manufacturer or authorized distributors?
All DG304BDJ 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 DG304BDJ meets industry standards.
7.What is the process for return or replacement of DG304BDJ?
All DG304BDJ units undergo pre-shipment inspection (PSI). If there is an issue with DG304BDJ, 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 DG304BDJ part is unused and in its original packaging.
Return procedure for DG304BDJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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