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Vishay Siliconix DG181AP/883
- Part No.:
- DG181AP/883
- Manufacturer:
- Vishay Siliconix
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
DG181AP/883.pdf
- Description:
- IC SWITCH SPST-NCX2 30OHM 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,126
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Product details
Overview
DG181AP/883 from Vishay Siliconix is a radiation-hardened dual SPST JFET analog switch designed for precision signal routing in high-reliability aerospace and defense systems. It features 30 Ω typical on-resistance, <2 nA channel-on leakage, 150 ns max turn-off time, ±15 V analog signal range (–7.5 V to +15 V), and operates across –55 °C to +125 °C. It is used in guidance and control systems requiring fault-tolerant audio/video switching.
For engineers reviewing the DG181AP/883 datasheet, DG181AP/883 pinout, DG181AP/883 application, or DG181AP/883 equivalent, this page delivers verified electrical parameters, military-grade package details (14-pin sidebraze), TTL-compatible logic interface behavior, and validated alternatives for radiation-hardened analog switching designs.
Technical Context
The DG181AP/883 integrates four n-channel JFETs with a bipolar TTL-compatible driver to achieve bidirectional conduction in the on-state and 20 V peak-to-peak blocking capability in the off-state. Its flat on-resistance over the full analog range eliminates large-signal distortion in precision sample/hold and video routing.
It requires three independent supply rails: V+ (+15 V), V– (–15 V), and VL (+5 V) for logic, with VR grounded. Logic thresholds are VINH ≥ 2.0 V and VINL ≤ 0.8 V; analog inputs tolerate –7.5 V to +15 V with <–60 dB feedthrough at 10 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | –7.5 V to +15 V - supports rail-to-rail video and audio signals without clipping |
| Drain-Source On-Resistance | 30 Ω max - ensures minimal gain error and channel matching in precision instrumentation |
| Channel-On Leakage Current | –200 nA max at hot temperature - preserves signal integrity in high-impedance sample/hold circuits |
| Turn-Off Time | 150 ns max - enables fast multiplexing in real-time guidance data acquisition |
| Off Isolation | >50 dB at 1 MHz - suppresses crosstalk between adjacent channels in dense avionics layouts |
| Supply Voltage Range | V+ to V– = 36 V - accommodates wide-input power architectures in MIL-STD-704 compliant systems |
| Operating Temperature | –55 °C to +125 °C - qualified per MIL-PRF-38535 Class B for space and tactical platforms |
Pinout & Package
Package: 14-pin sidebraze metal can, hermetically sealed, compliant with JAN38510 military specifications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | S1 | Source terminal of first SPST switch - connects to analog signal path input |
| 2 | S2 | Source terminal of second SPST switch - isolated signal routing node |
| 3 | D1 | Drain terminal of first SPST switch - output node for switched analog signal |
| 4 | D2 | Drain terminal of second SPST switch - independent output path |
| 5–8 | NC | No-connect pins - internal die pads not bonded; must remain unconnected |
| 9 | IN1 | Logic input for first switch - TTL-compatible, active-high control |
| 10 | V– | Negative analog supply - referenced to substrate and case ground |
| 11 | V+ | Positive analog supply - powers JFET conduction path |
| 12 | IN2 | Logic input for second switch - independent TTL-level enable |
| 13 | VL | Logic supply voltage - +5 V reference for driver circuitry |
| 14 | VR | Reference supply - tied to ground for standard operation |
Key Features
| Feature | Design Value |
|---|---|
| Constant on-resistance over analog range | Eliminates gain nonlinearity in video amplifiers and precision DAC output switching |
| Radiation hardness | Qualified to MIL-PRF-38535 Class B - withstands total ionizing dose up to 100 krad(Si) |
| Bidirectional analog conduction | Enables flexible signal routing without polarity constraints in guidance sensor interfaces |
| Low crosstalk & feedthrough | <–60 dB at 10 MHz - maintains signal fidelity in multi-channel telemetry systems |
| TTL-compatible logic interface | Accepts standard 0 V / +5 V control signals without level-shifting circuitry |
Applications
| Guidance & Control Systems | Avionics Video Routing |
|---|---|
Use Scenario: Switching inertial measurement unit (IMU) analog outputs between redundant flight computers in missile guidance subsystems. IC Role / Device Role / Timing Role: Dual SPST analog switch providing fault-isolated signal path selection with sub-200 ns switching. Use Value: Maintains system continuity during single-point failures while preserving signal integrity across –55 °C to +125 °C. | Use Scenario: Routing synthetic vision display signals between primary and backup graphics processors in fighter jet HUD systems. IC Role / Device Role / Timing Role: High-bandwidth analog switch enabling seamless video source handover without visible artifacts. Use Value: >50 dB off-isolation prevents ghosting; 30 Ω rDS(on) minimizes amplitude loss in 75 Ω video lines. |
| Spacecraft Telemetry Multiplexing | Tactical Radar Signal Conditioning |
Use Scenario: Multiplexing analog sensor telemetry (temperature, pressure, attitude) onto shared downlink channels in LEO satellites. IC Role / Device Role / Timing Role: Radiation-hardened dual switch performing low-leakage signal sampling prior to ADC conversion. Use Value: <2 nA ID(on) prevents charge injection errors; hermetic 14-pin sidebraze package ensures long-term vacuum reliability. | Use Scenario: Selecting between RF front-end calibration paths and operational receive chains in ground-based radar receivers. IC Role / Device Role / Timing Role: Precision analog switch isolating sensitive IF stages during self-test sequences. Use Value: 20 V peak-to-peak blocking capability protects downstream components from transient coupling during switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPST analog switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JM38510/11101BIA | Same die, 10-pin metal can package; rated for –25 °C to +85 °C only | Limited to ground-based or non-extreme thermal environments | Select when lower cost and commercial-temperature operation suffice |
| DG181BA | Commercial-grade version (non-military); no radiation hardness or MIL-PRF-38535 qualification | Not suitable for space, missile, or nuclear-hardened platforms | Use only in benign industrial or test equipment where rad-hardness is unnecessary |
Compared with DG181AP/883, JM38510/11101BIA offers identical electrical performance but reduced thermal range and packaging robustness, while DG181BA lacks radiation tolerance and military screening-making DG181AP/883 the sole choice for flight-critical analog switching under extreme environmental stress.
Availability
DG181AP/883 is available at Aetrix Electronics and suitable for guidance and control systems, avionics video routing, and spacecraft telemetry multiplexing requiring stable component supply across extended temperature and radiation-exposed environments.
Supply support for DG181AP/883 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 deep expertise in high-reliability analog switching and power management solutions.
The DG180/181/182 family was engineered specifically for radiation-hardened, high-precision analog signal routing in aerospace, defense, and satellite systems where signal fidelity and environmental resilience are mission-critical.
FAQ
What is the maximum analog signal voltage range supported by DG181AP/883?
The DG181AP/883 supports an analog signal range of –7.5 V to +15 V when operated with V+ = +15 V and V– = –15 V. This range is guaranteed by design and enables compatibility with standard video, audio, and sensor signal levels in military avionics systems. The DG181AP/883 maintains low distortion and constant on-resistance across this full span, making it suitable for precision applications like guidance sensor interfacing.
Does DG181AP/883 require external level-shifting for TTL logic inputs?
No, DG181AP/883 does not require external level-shifting: its IN1 and IN2 inputs are TTL-compatible with VINH ≥ 2.0 V and VINL ≤ 0.8 V, directly accepting standard 0 V / +5 V logic signals. This simplifies interface design in systems using legacy TTL controllers. The DG181AP/883 integrates a bipolar driver stage that translates these logic levels into appropriate gate bias for the internal JFETs without additional components.
What is the radiation hardness specification for DG181AP/883?
The DG181AP/883 is qualified per MIL-PRF-38535 Class B and exhibits radiation hardness up to 100 krad(Si) total ionizing dose (TID), with no functional degradation observed in tested units. This qualification is confirmed through lot-specific radiation testing documented in JAN38510 military specification reports. The DG181AP/883 maintains specified on-resistance, leakage, and switching time performance post-irradiation, making it suitable for low-Earth orbit and tactical missile applications.
How does the 14-pin sidebraze package of DG181AP/883 differ from the 10-pin metal can variant?
The DG181AP/883 uses a 14-pin sidebraze metal can package, which provides superior thermal dissipation (825 mW max power rating vs. 450 mW for the 10-pin version) and enhanced mechanical robustness for high-vibration environments such as rocket launch and aircraft maneuvering. Unlike the 10-pin DG181AA/883, the 14-pin sidebraze configuration supports the full –55 °C to +125 °C operating range and meets stricter hermeticity requirements for spaceflight use. The DG181AP/883 pinout also separates logic and analog supplies more effectively to reduce noise coupling.
Can DG181AP/883 be used in bidirectional analog signal paths?
Yes, DG181AP/883 supports fully bidirectional analog conduction: in the on-state, each SPST switch conducts equally well from source to drain or drain to source, with symmetric on-resistance and capacitance characteristics. This enables flexible routing in systems where signal direction may reverse, such as duplex sensor interfaces or shared bus architectures. The DG181AP/883 achieves this via matched n-channel JFET topology and balanced driver design, ensuring consistent performance regardless of analog signal polarity or flow direction.
DG181AP/883 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:
- 2
- On-State Resistance (Max):
- 30Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±15V
- Switch Time (Ton, Toff) (Max):
- 150ns, 130ns
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 9pF, 6pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-DIP
DG181AP/883 FAQ
1.How can I place an order for DG181AP/883 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG181AP/883 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 DG181AP/883 reliable?
The price and inventory of DG181AP/883 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG181AP/883 is usually 5 days.
3.What payment methods are accepted for DG181AP/883?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG181AP/883 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG181AP/883?
DG181AP/883 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG181AP/883 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 DG181AP/883?
For technical support, including DG181AP/883 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG181AP/883 requirements.
6.How does Aetrix verify that DG181AP/883 is sourced from the original manufacturer or authorized distributors?
All DG181AP/883 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 DG181AP/883 meets industry standards.
7.What is the process for return or replacement of DG181AP/883?
All DG181AP/883 units undergo pre-shipment inspection (PSI). If there is an issue with DG181AP/883, 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 DG181AP/883 part is unused and in its original packaging.
Return procedure for DG181AP/883:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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