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Vishay Siliconix DG419BDJ
- Part No.:
- DG419BDJ
- Manufacturer:
- Vishay Siliconix
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
DG419BDJ.pdf
- Description:
- IC SWITCH SPDT X 1 25OHM 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,309
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Product details
Overview
DG419BDJ from Vishay Siliconix is a precision monolithic SPDT CMOS analog switch designed for high-fidelity signal routing in dual-supply systems. It features ±15 V analog signal range, 15 Ω typical on-resistance, guaranteed break-before-make switching, 110 ns turn-on time, and operates over –40 °C to +85 °C - ideal for precision instrumentation and military-grade sample-and-hold circuits.
For engineers reviewing the DG419BDJ datasheet, DG419BDJ pinout, DG419BDJ application, or DG419BDJ equivalent, this page delivers verified specifications, package-validated pin functions, real-world use cases in guidance systems and test equipment, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The DG419BDJ implements a single-pole double-throw (SPDT) topology with complementary control logic: logic low (≤0.8 V) enables SW1 (S1→D), logic high (≥2.4 V) enables SW2 (S2→D). Its HVSG process ensures latchup immunity and supports rail-to-rail analog signals up to ±15 V.
Break-before-make timing is guaranteed at 16 ns minimum (tD) under RL = 300 Ω / CL = 35 pF conditions, preventing momentary shorting between S1 and S2. Channel conduction is bidirectional, with off-isolation of –82 dB and crosstalk of –88 dB at 1 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V - supports full-rail bipolar signal switching without clipping in dual-supply precision systems |
| RDS(on) | 15 Ω typical - minimizes signal attenuation and gain error in low-impedance sensor or DAC output paths |
| tON/tOFF | 110 ns / 99 ns - enables sub-microsecond multiplexing in high-speed data acquisition and ATE |
| Break-Before-Make Delay (tD) | 16 ns min - eliminates signal coupling between S1 and S2 during state transition, critical for fault-tolerant routing |
| Off Isolation (OIRR) | –82 dB at 1 MHz - suppresses leakage from adjacent channels in multi-signal monitoring systems |
| Charge Injection | 38 pC - limits voltage glitch on high-impedance hold capacitors in sample-and-hold stages |
| Supply Current (I+, I–, IL) | <5 µA max - enables ultra-low-power operation in battery-backed instrumentation |
Pinout & Package
DG419BDJ is housed in an 8-pin Plastic MiniDIP (Dual-In-Line) package per JEDEC MS-001, with 0.3-inch body width and 0.1-inch lead pitch. The package is RoHS-compliant (Pb-free terminations).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (S1) | Source 1 input | Bidirectional analog terminal for first SPDT path; connects to D when IN = logic low |
| 2 (S2) | Source 2 input | Bidirectional analog terminal for second SPDT path; connects to D when IN = logic high |
| 3 (D) | Common drain output | Shared analog output node; routes either S1 or S2 based on IN logic level |
| 4 (V–) | Negative supply rail | Supports –20 V absolute max; establishes lower analog voltage boundary and bias reference |
| 5 (GND) | Digital ground reference | Reference for logic inputs (IN, VL); must be tied to system digital ground |
| 6 (IN) | Logic control input | TTL/CMOS-compatible; ≤0.8 V selects S1→D, ≥2.4 V selects S2→D |
| 7 (V+) | Positive supply rail | Supports +20 V absolute max; establishes upper analog voltage boundary |
| 8 (VL) | Logic supply voltage | Accepts 2.4 V to V+ + 0.3 V; decouples logic threshold from analog rails for stable switching |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make guarantee | Ensures no overlap between S1 and S2 conduction, eliminating transient shorts in safety-critical routing |
| ±15 V analog signal handling | Enables direct interface with industrial sensors, op-amp outputs, and bipolar DACs without level-shifting |
| 15 Ω RDS(on) with flatness over signal range | Maintains linearity and low THD in audio and precision measurement paths up to ±12.5 V |
| 38 pC charge injection | Reduces hold-step error to <0.5 mV on 10 nF capacitors - suitable for 12-bit+ sample-and-hold accuracy |
| Epitaxial latchup immunity | Permits robust operation in noisy environments (e.g., military radios, guidance systems) without reset events |
Applications
| Precision Test Equipment | Precision Instrumentation |
|---|---|
Use Scenario: Automated test systems routing multiple sensor inputs to a shared ADC channel. IC Role / Device Role / Timing Role: SPDT analog switch selecting between calibrated reference and device-under-test signals with sub-100 ns settling. Use Value: Break-before-make prevents cross-talk-induced measurement errors; ±15 V range accommodates high-output transducers without attenuation. |
Use Scenario: Portable multimeter front-end switching between AC/DC voltage, current, and resistance ranges. IC Role / Device Role / Timing Role: Low-leakage, low-RDS(on) signal router isolating sensitive input amplifiers from range-selection networks. Use Value: 0.25 nA max off-leakage preserves nanoamp-level current measurements; 15 Ω on-resistance avoids burden voltage errors. |
| Battery-Powered Systems | Military Radios |
Use Scenario: Handheld spectrum analyzer powering down unused RF front-end paths to extend battery life. IC Role / Device Role / Timing Role: Ultra-low-quiescent-current analog switch enabling selective signal path enable/disable under microcontroller control. Use Value: <5 µA total supply current minimizes standby drain; MSOP-8/SOIC-8 options support compact PCB layouts. |
Use Scenario: Secure comms radio requiring EMI-hardened signal routing between antenna, LNA, and mixer stages. IC Role / Device Role / Timing Role: High-isolation SPDT switch isolating receive and transmit paths during TDD operation. Use Value: –82 dB off-isolation suppresses Tx leakage into Rx chain; latchup immunity withstands radiated ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4619EPA+ | Higher RDS(on) (35 Ω typ), wider temp range (–40 °C to +105 °C), requires external logic level translation for VL-independent control | Better suited for extended-temperature industrial controllers where power dissipation margin is available | Select MAX4619EPA+ only if operating above 85 °C or when higher on-resistance is acceptable for cost-sensitive designs |
| ADG1419BRUZ | Lower charge injection (12 pC), higher bandwidth (200 MHz), but higher supply current (20 µA) and no break-before-make guarantee | Preferred for high-frequency RF sampling where glitch energy matters more than fault tolerance | Choose ADG1419BRUZ when minimizing hold-capacitor disturbance is critical and break-before-make is not required |
Compared with DG419BDJ, MAX4619EPA+ trades guaranteed break-before-make and lower leakage for extended temperature capability, while ADG1419BRUZ sacrifices fault-safe switching for superior high-frequency performance and lower charge injection - making DG419BDJ the optimal choice for precision, safety-critical, or battery-constrained SPDT routing.
Availability
DG419BDJ is available at Aetrix Electronics and suitable for precision test equipment, military radios, and battery-powered instrumentation requiring stable component supply across long production lifecycles.
Supply support for DG419BDJ 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 leader in discrete semiconductors and passive components, specializing in high-reliability, high-performance analog solutions for demanding industrial and defense applications.
The DG419BDJ belongs to Vishay's precision analog switch family built on HVSG process technology, engineered specifically for rail-to-rail signal integrity, latchup immunity, and guaranteed break-before-make behavior in mission-critical systems.
FAQ
What is the maximum analog signal voltage supported by the DG419BDJ?
The DG419BDJ supports analog signals from V– to V+, with absolute maximum ratings of –20 V on V– and +20 V on V+. Under standard ±15 V dual-supply operation, its guaranteed analog signal range is ±15 V - enabling full-rail switching without clipping. This specification is validated across the –40 °C to +85 °C operating temperature range and applies directly to the DG419BDJ in its MiniDIP package.
Does the DG419BDJ require external pull-up or pull-down resistors on the IN pin?
No, the DG419BDJ does not require external biasing on the IN pin. Its TTL/CMOS-compatible input accepts logic low ≤0.8 V and logic high ≥2.4 V with input currents under ±0.5 µA across temperature - allowing direct connection to microcontrollers, FPGAs, or logic gates without additional components. This behavior is specified and tested for the DG419BDJ across its full operating range.
Is break-before-make timing guaranteed for the DG419BDJ, and what is the minimum delay?
Yes, break-before-make timing is guaranteed for the DG419BDJ. The minimum break-before-make delay (tD) is 16 ns under RL = 300 Ω and CL = 35 pF test conditions, with typical values of 25 ns and maximum of 33 ns. This guarantee is explicitly stated in the DG419BDJ datasheet and applies to all units regardless of process variation or temperature - a key differentiator from non-guaranteed alternatives.
Can the DG419BDJ operate with a single 12 V supply, and how does performance change?
Yes, the DG419BDJ supports single-supply operation at V+ = 12 V and V– = 0 V. In this configuration, its analog signal range becomes 0 V to 12 V, RDS(on) increases to 26 Ω typical, tON extends to 100 ns, and charge injection reduces to 18 pC. All these parameters are fully characterized and published in the DG419BDJ datasheet for the D-suffix (–40 °C to +85 °C) version.
What is the thermal derating for the DG419BDJ in the MiniDIP package?
The DG419BDJ in the 8-pin Plastic MiniDIP package has a power dissipation limit of 400 mW at +75 °C ambient, with linear derating of 5.3 mW/°C above that temperature. At +100 °C ambient, usable power drops to 265.5 mW. This derating curve is specified in the Absolute Maximum Ratings table of the DG419BDJ datasheet and applies exclusively to the DG419BDJ MiniDIP variant.
DG419BDJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 25Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 13V ~ 36V
- Voltage - Supply, Dual (V±):
- ±7V ~ 22V
- Switch Time (Ton, Toff) (Max):
- 89ns, 80ns
- -3db Bandwidth:
- -
- Charge Injection:
- 38pC
- Channel Capacitance (CS(off), CD(off)):
- 12pF, 12pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -88dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
DG419BDJ FAQ
1.How can I place an order for DG419BDJ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG419BDJ 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 DG419BDJ reliable?
The price and inventory of DG419BDJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG419BDJ is usually 5 days.
3.What payment methods are accepted for DG419BDJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG419BDJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG419BDJ?
DG419BDJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG419BDJ 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 DG419BDJ?
For technical support, including DG419BDJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG419BDJ requirements.
6.How does Aetrix verify that DG419BDJ is sourced from the original manufacturer or authorized distributors?
All DG419BDJ 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 DG419BDJ meets industry standards.
7.What is the process for return or replacement of DG419BDJ?
All DG419BDJ units undergo pre-shipment inspection (PSI). If there is an issue with DG419BDJ, 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 DG419BDJ part is unused and in its original packaging.
Return procedure for DG419BDJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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