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Vishay Siliconix DG459DJ-E3
- Part No.:
- DG459DJ-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG459DJ-E3.pdf
- Description:
- IC SWITCH SP4T X 2 1.5KOHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,341
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Product details
Overview
DG459DJ-E3 from Vishay Siliconix is a fault-protected differential 4-channel analog multiplexer with ±35 V continuous overvoltage tolerance, 180 Ω typical on-resistance at ±5 V supplies, 200 ns transition time, and break-before-make switching. It operates across –40 °C to +85 °C in a 16-pin plastic DIP package and is used in avionics test equipment for high-reliability signal routing under fault conditions.
For engineers reviewing the DG459DJ-E3 datasheet, DG459DJ-E3 pinout, DG459DJ-E3 application, or DG459DJ-E3 equivalent, key selection criteria include its fault-protected architecture, differential channel configuration, TTL/CMOS-compatible control inputs, and guaranteed off-isolation of 90 dB at 100 kHz - all critical for ruggedized data acquisition and telemetry systems.
Technical Context
The DG459DJ-E3 implements a triple-series n-p-n MOSFET switch structure per channel, enabling intrinsic overvoltage protection even with power supplies off. Its analog signal range is guaranteed ±10 V under normal operation, and it maintains sub-nanoampere leakage (≤0.5 nA) when subjected to ±33 V overvoltage with power applied.
Control logic uses TTL/CMOS-compatible thresholds (VIL ≤ 0.8 V, VIH ≥ 2.4 V), and enable-driven operation ensures all channels remain off during power loss. Break-before-make timing is specified at 45 ns minimum, preventing channel-to-channel crosstalk during switching transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Channels | Differential 4-channel - routes paired analog signals with matched path integrity |
| On-Resistance | 180 Ω typ. at ±5 V - enables <1 LSB error in 12-bit systems with 1 kΩ source impedance |
| Transition Time | 200 ns max - supports multiplexed sampling rates up to ~2 MHz with settling margin |
| Fault Tolerance | ±35 V continuous input overvoltage - protects sensors and downstream circuitry without external clamping |
| Off-Isolation | 90 dB at 100 kHz - suppresses crosstalk between active and inactive differential pairs |
| Supply Range | ±4.5 V to ±18 V - supports dual-rail operation in industrial and aerospace signal chains |
| Leakage Current | ≤0.5 nA at ±10 V - preserves accuracy in high-impedance sensor interfaces (e.g., thermocouples) |
Pinout & Package
Package: 16-pin plastic DIP (Dual-In-Line), RoHS-compliant (E3 suffix), body dimensions 19.05 mm × 7.62 mm × 3.18 mm (L × W × H), lead pitch 2.54 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 9 | S1a–S4a, S1b–S4b | Differential analog inputs - each pair (e.g., S1a/S1b) forms one fully isolated channel |
| 8 | EN | Enable input - active-high; forces all switches open when low, regardless of address state |
| 10, 11 | A0, A1 | Channel select address lines - binary-coded selection of one of four differential channels |
| 12 | GND | Analog/digital ground reference - common return for supplies and logic |
| 13 | V− | Negative supply rail - powers internal level shifters and switch bias networks |
| 14 | V+ | Positive supply rail - establishes analog signal range and switch conduction capability |
| 15, 16 | Da, Db | Differential analog outputs - deliver selected channel's balanced signal to ADC or instrumentation amp |
Key Features
| Feature | Design Value |
|---|---|
| Fault-protected architecture | Triple-series MOSFET per channel blocks >±33 V faults with <0.02 nA output leakage - eliminates need for external TVS or series resistors |
| Power-loss immunity | All channels auto-disable when V+ or V− drops below operating threshold - prevents backfeeding into powered-off subsystems |
| Break-before-make switching | 45 ns minimum inter-channel isolation gap - avoids momentary shorting between differential pairs during reconfiguration |
| Latchup-proof design | Junction-isolated CMOS process withstands >100 mA transient current without latchup - suitable for noisy industrial environments |
| TTL/CMOS compatibility | Logic thresholds fixed at 0.8 V / 2.4 V independent of supply rails - simplifies interface with microcontrollers and FPGAs |
Applications
| Avionics Test Equipment | Industrial Process Control |
|---|---|
Use Scenario: Multiplexing multiple RTD and thermocouple inputs in airborne environmental monitoring units where EMI and power interruption are frequent. IC Role / Device Role / Timing Role: Fault-tolerant differential analog switch routing sensor signals to a shared 16-bit SAR ADC under ±35 V transients. Use Value: Maintains measurement continuity during voltage sags and prevents damage to precision front-end amplifiers during lightning-induced surges. | Use Scenario: Routing 4–20 mA loop signals from distributed pressure and flow transmitters to a central PLC analog input module in oil refinery control cabinets. IC Role / Device Role / Timing Role: Differential channel selector isolating field-side signals from controller-side circuitry while rejecting common-mode noise. Use Value: Enables single-board consolidation of four independent 4–20 mA channels with <0.5 nA off-leakage, preserving loop accuracy over decades of operation. |
| Telemetry Systems | High-Reliability Data Acquisition |
Use Scenario: Signal conditioning stage in satellite payload telemetry units handling vibration, temperature, and radiation sensor outputs across wide thermal ranges. IC Role / Device Role / Timing Role: Overvoltage-hardened analog multiplexer feeding isolated sigma-delta ADCs in radiation-tolerant data loggers. Use Value: Survives launch-induced power glitches and maintains channel integrity during deep-space thermal cycling without recalibration. | Use Scenario: Front-end multiplexer in medical-grade patient monitoring devices acquiring ECG, respiration, and SpO₂ signals with strict leakage limits. IC Role / Device Role / Timing Role: Low-leakage differential switch ensuring <100 pA input bias current compliance for biopotential amplifiers. Use Value: Meets IEC 60601-1 creepage/clearance requirements via inherent power-off isolation, eliminating need for mechanical relays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX359CPN+ | Same pinout, identical truth table, but higher RDS(on) (300 Ω typ.) and lower fault tolerance (±20 V) | Limited to benign industrial environments; unsuitable for avionics surge testing | Select when cost sensitivity outweighs overvoltage margin and on-resistance performance |
| HI-509ACJ | Pin-compatible, same ±35 V rating, but wider temp range (–55 °C to +125 °C) and higher power dissipation (1000 mW) | Required for extended temperature military/aerospace deployments beyond DG459DJ-E3's –40 °C to +85 °C range | Choose when operating in extreme ambient conditions or requiring higher thermal headroom |
Compared with MAX359CPN+ and HI-509ACJ, the DG459DJ-E3 delivers optimal balance of fault robustness, low on-resistance, and commercial-temperature reliability - making it preferred for cost-constrained avionics and industrial telemetry where full military spec is unnecessary.
Availability
DG459DJ-E3 is available at Aetrix Electronics and suitable for avionics test equipment, industrial process control systems, and telemetry applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for DG459DJ-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 leadership in high-reliability switching, protection, and sensing technologies.
The DG459DJ-E3 belongs to Vishay's fault-protected analog switch product line, engineered specifically for mission-critical signal routing in harsh environments where power instability, voltage transients, and long-term reliability are primary design constraints.
FAQ
What is the maximum continuous overvoltage rating for DG459DJ-E3 with power supplies off?
The DG459DJ-E3 sustains ±35 V continuous analog input overvoltage even when V+ and V− are unpowered. Under this condition, input leakage remains ≤2 nA, and the device presents an open-circuit impedance to protect upstream sensors. This behavior is confirmed in the Absolute Maximum Ratings table and Figure 5 of the DG458/DG459 datasheet (Document Number: 70064, Rev. H).
Does DG459DJ-E3 support break-before-make switching, and what is its minimum interval?
Yes, DG459DJ-E3 guarantees break-before-make operation with a minimum tOPEN of 45 ns, measured between turn-off of the previously selected channel and turn-on of the newly selected channel. This prevents momentary shorting in differential configurations and is validated under room-temperature conditions with ±15 V supplies, as specified in the Dynamic Characteristics table.
What is the on-resistance specification for DG459DJ-E3, and how does it vary with supply voltage?
DG459DJ-E3 has a typical on-resistance of 180 Ω at ±5 V supplies and ±9.5 V analog signal levels, rising to 400 Ω at ±5 V with ±5 V signal swing. The RDS(on) increases nonlinearly near supply rails due to MOSFET pinch-off; full characterization is provided in Figure 5 of the datasheet, showing 700 Ω max at ±20 V supplies with ±10 V signals.
Can DG459DJ-E3 be used with single-supply operation, and what are the limitations?
No, DG459DJ-E3 requires dual symmetric supplies (e.g., ±5 V, ±12 V, ±15 V) to maintain its specified ±10 V analog signal range and fault protection. Single-supply operation violates the Absolute Maximum Rating for V− to GND (–25 V min), risks latchup, and degrades RDS(on) matching. The device is not characterized for unipolar use.
How does the fault protection in DG459DJ-E3 differ from standard analog multiplexers like the CD4051?
DG459DJ-E3 integrates three-series MOSFETs per channel that intrinsically cut off under overvoltage, limiting leakage to <0.02 nA at ±33 V. In contrast, CD4051 lacks such architecture and fails catastrophically above its supply rails, requiring external protection diodes and current-limiting resistors - increasing board area, cost, and signal path error.
DG459DJ-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 1.5kOhm
- Channel-to-Channel Matching (ΔRon):
- 90Ohm
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 18V
- Switch Time (Ton, Toff) (Max):
- 250ns, 250ns
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 10pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
DG459DJ-E3 FAQ
1.How can I place an order for DG459DJ-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG459DJ-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 DG459DJ-E3 reliable?
The price and inventory of DG459DJ-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG459DJ-E3 is usually 5 days.
3.What payment methods are accepted for DG459DJ-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG459DJ-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG459DJ-E3?
DG459DJ-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG459DJ-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 DG459DJ-E3?
For technical support, including DG459DJ-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG459DJ-E3 requirements.
6.How does Aetrix verify that DG459DJ-E3 is sourced from the original manufacturer or authorized distributors?
All DG459DJ-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 DG459DJ-E3 meets industry standards.
7.What is the process for return or replacement of DG459DJ-E3?
All DG459DJ-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG459DJ-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 DG459DJ-E3 part is unused and in its original packaging.
Return procedure for DG459DJ-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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