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Vishay Siliconix DG419DJ
- Part No.:
- DG419DJ
- Manufacturer:
- Vishay Siliconix
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
DG419DJ.pdf
- Description:
- IC SWITCH SPDT X 1 35OHM 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,058
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Product details
Overview
DG419DJ from Vishay Siliconix is a precision SPDT CMOS analog switch designed for bidirectional signal routing in high-accuracy, low-power systems. It features ±15 V analog signal range, 20 Ω on-resistance, 100 ns turn-on time, and guaranteed break-before-make switching - making it suitable for precision instrumentation and battery-powered test equipment.
For engineers reviewing the DG419DJ datasheet, DG419DJ pinout, DG419DJ application, or DG419DJ equivalent, this page delivers verified specifications, MiniDIP-8 package details, real-world use cases in sample-and-hold and military radios, and two validated alternative parts with documented functional differences.
Technical Context
The DG419DJ implements a single-pole double-throw (SPDT) topology with complementary control logic: logic low enables S1–D conduction, logic high enables S2–D conduction. Break-before-make timing is guaranteed at ≥5 ns (typ. 13 ns), preventing signal shorting during state transitions.
It operates from dual supplies (±5 V to ±20 V) or single supplies (5 V to 40 V), uses Vishay's high-voltage silicon gate (HVSG) process for 44 V absolute max supply rating, and incorporates an epitaxial layer to prevent latch-up under transient overvoltage conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog signal range | ±15 V - supports full-rail bipolar signal switching without clipping in precision measurement front-ends |
| On-resistance (RDS(on)) | 20 Ω (typ.) - ensures minimal gain error and THD degradation in programmable gain amplifiers |
| Turn-on time (ton) | 100 ns (typ., ±15 V supplies) - enables sub-microsecond channel selection in automated test equipment |
| Switch off leakage (IS(off)) | ±0.75 nA (max, full temp range) - preserves signal integrity in high-impedance sample-and-hold circuits |
| Charge injection | 60 pC (typ.) - limits voltage step error at switch output, critical for low-drift integrators |
| Supply voltage range | ±5 V to ±20 V dual or 5 V to 40 V single - allows operation in both industrial rail and portable battery systems |
| Logic compatibility | TTL/CMOS - interfaces directly with microcontrollers and FPGAs without level-shifting circuitry |
Pinout & Package
DG419DJ is housed in an 8-pin plastic MiniDIP package (JEDEC MS-001), with 0.3 inch body width, 0.1 inch lead pitch, and through-hole mounting. Pin 1 is marked by a notch or dot; leads are tin-lead (Pb) terminated unless specified as RoHS-compliant (e.g., -E3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Digital control input | Active-high logic: high = connect D to S2; low = connect D to S1 |
| 2 (D) | Common drain terminal | Bidirectional analog path shared by both SPDT channels |
| 3 (S2) | Source 2 terminal | Second analog input/output port; conducts to D when IN = high |
| 4 (V−) | Negative supply rail | Reference for negative analog swing; must be ≤ V+ − 44 V |
| 5 (GND) | Ground reference | Logic ground and substrate reference; separate from analog ground in mixed-signal layouts |
| 6 (V+) | Positive supply rail | Reference for positive analog swing; supports up to +44 V absolute max |
| 7 (VL) | Logic supply voltage | Independent 5 V rail for TTL/CMOS interface; decoupling required near pin |
| 8 (S1) | Source 1 terminal | First analog input/output port; conducts to D when IN = low |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed ≥5 ns delay prevents momentary short between S1 and S2 - essential for safe multiplexing of conflicting signal sources |
| Ultra-low power consumption | 35 nW typical quiescent power - extends battery life in portable instrumentation and remote sensors |
| High-voltage silicon gate process | Enables 44 V absolute max supply rating and robust ESD tolerance - suitable for industrial transducer interfaces |
| Low charge injection (60 pC) | Minimizes settling error in precision sampling circuits; avoids need for large hold capacitors or correction algorithms |
| Epitaxial latch-up protection | Prevents destructive parasitic SCR activation during overvoltage or hot-insertion events - improves field reliability |
Applications
| Precision Test Equipment | Precision Instrumentation |
|---|---|
Use Scenario: Automated calibration of multimeters and oscilloscope front-ends using relayless signal routing. IC Role / Device Role / Timing Role: DG419DJ serves as a low-distortion, low-leakage analog multiplexer selecting reference voltages or sensor inputs. Use Value: 20 Ω RDS(on) and ±0.75 nA off-leakage ensure <0.005% gain error and <1 µV offset drift across temperature. |
Use Scenario: Signal conditioning in medical EEG/ECG acquisition systems requiring galvanic isolation and low-noise switching. IC Role / Device Role / Timing Role: DG419DJ routes biopotential signals to differential amplifiers while maintaining common-mode rejection. Use Value: ±15 V analog range and 60 pC charge injection preserve signal fidelity during channel scanning at ≤1 kSPS. |
| Battery-Powered Systems | Military Radios |
Use Scenario: Power-path management in handheld spectrum analyzers with dual Li-ion cells and backup supercapacitors. IC Role / Device Role / Timing Role: DG419DJ acts as a micropower UPS transfer switch, enabling seamless switchover below 3.3 V. Use Value: 35 nW quiescent power and 100 pA standby current minimize self-discharge, extending shelf life >2 years. |
Use Scenario: Antenna diversity switching and IF signal routing in tactical HF/VHF transceivers operating in extreme environments. IC Role / Device Role / Timing Role: DG419DJ selects between redundant receiver paths or antenna feeds under digital control. Use Value: Guaranteed break-before-make and −60 dB off-isolation suppress inter-channel crosstalk in multi-band RF front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4619CPD+ | Higher on-resistance (35 Ω typ.), faster ton (50 ns), requires only single 5 V supply | Better suited for 5 V-only digital systems; less ideal for ±15 V precision signal chains | Select MAX4619CPD+ when interfacing with 3.3/5 V microcontrollers and lower-voltage analog rails |
| ADG1419BRUZ | Lower on-resistance (1.3 Ω typ.), higher supply rating (±22 V), but 3× higher charge injection (180 pC) | Superior for low-RON applications like audio routing; unsuitable where charge injection dominates error budget | Select ADG1419BRUZ when minimizing insertion loss is critical and charge injection can be compensated |
Compared with DG419DJ, MAX4619CPD+ offers simpler single-supply operation but sacrifices bipolar signal handling, while ADG1419BRUZ delivers ultra-low RON at the cost of higher charge-induced settling error - making DG419DJ the balanced choice for ±15 V, low-leakage, precision multiplexing.
Availability
DG419DJ is available at Aetrix Electronics and suitable for precision test equipment, battery-powered instrumentation, and military radio designs requiring stable component supply across extended temperature ranges (−40 °C to +85 °C) and long production lifecycles.
Supply support for DG419DJ 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 high-reliability switches, MOSFETs, and power management devices.
The DG419DJ belongs to Vishay's precision CMOS analog switch family, engineered for high-performance signal routing in test, medical, and defense applications where low leakage, low distortion, and guaranteed break-before-make behavior are mandatory.
FAQ
What is the maximum supply voltage rating for DG419DJ?
The DG419DJ has an absolute maximum supply rating of 44 V across V+ and V− terminals. This allows operation with dual supplies up to ±20 V or single supplies up to 40 V. Exceeding 44 V risks permanent damage, per Vishay's Absolute Maximum Ratings table in Document 70051.
Does DG419DJ support single-supply operation?
Yes, DG419DJ supports single-supply operation from 5 V to 40 V. When used with unipolar supplies (e.g., V+ = 12 V, V− = 0 V), its analog signal range is 0 V to 12 V, and performance parameters such as RDS(on) and ton remain within datasheet limits per the unipolar test conditions section.
What is the guaranteed break-before-make time for DG419DJ?
DG419DJ guarantees a minimum break-before-make time delay of 5 ns (measured at room temperature, ±15 V supplies). Typical value is 13 ns. This specification ensures no overlap between S1–D and S2–D conduction, preventing signal shorting during switching - a key requirement confirmed in the Functional Block Diagram and Truth Table sections of the DG419 datasheet.
Is DG419DJ RoHS-compliant?
The base DG419DJ part uses lead (Pb) terminations and is not RoHS-compliant. However, Vishay offers RoHS-compliant variants including DG419DJ-E3 (lead-free, matte tin finish). Compliance status is explicitly defined in the Ordering Information table and Notes section of Document 70051.
How does DG419DJ handle logic-level translation?
DG419DJ uses an independent VL pin (pin 7) for logic supply, accepting 5 V TTL/CMOS levels regardless of analog supply rails. Logic thresholds are fixed: VIN ≤ 0.8 V = low, VIN ≥ 2.4 V = high. This allows clean interfacing with 3.3 V or 5 V controllers even when analog supplies are ±15 V - a feature verified in the Truth Table and Digital Control specifications.
DG419DJ 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):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 12V
- Voltage - Supply, Dual (V±):
- ±15V
- Switch Time (Ton, Toff) (Max):
- 175ns, 145ns
- -3db Bandwidth:
- -
- Charge Injection:
- 60pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
DG419DJ FAQ
1.How can I place an order for DG419DJ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG419DJ 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 DG419DJ reliable?
The price and inventory of DG419DJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG419DJ is usually 5 days.
3.What payment methods are accepted for DG419DJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG419DJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG419DJ?
DG419DJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG419DJ 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 DG419DJ?
For technical support, including DG419DJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG419DJ requirements.
6.How does Aetrix verify that DG419DJ is sourced from the original manufacturer or authorized distributors?
All DG419DJ 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 DG419DJ meets industry standards.
7.What is the process for return or replacement of DG419DJ?
All DG419DJ units undergo pre-shipment inspection (PSI). If there is an issue with DG419DJ, 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 DG419DJ part is unused and in its original packaging.
Return procedure for DG419DJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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