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Vishay Siliconix DG187AA/883
- Part No.:
- DG187AA/883
- Manufacturer:
- Vishay Siliconix
- Package:
- TO-100-10 Metal Can
- Datasheet:
-
DG187AA/883.pdf
- Description:
- IC SWITCH SPDTX1 30OHM TO100-10
- Quantity:
- Payment:
- Shipping:
Inventory:4,100
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Product details
Overview
DG187AA/883 from Vishay Siliconix is a radiation-hardened, precision SPDT analog switch using JFET architecture for high-fidelity signal routing in military and aerospace systems. It features 30 Ω typical on-resistance, <2 nA channel-on leakage, 85 ns turn-on time, and ±15 V dual supply operation. It is used in telemetry signal switching where constant rDS(on) over –12.5 V to +10 V analog range prevents large-signal distortion.
For engineers reviewing the DG187AA/883 datasheet, DG187AA/883 pinout, DG187AA/883 application, or DG187AA/883 equivalent, key selection criteria include its MIL-PRF-38535 Class B qualification, metal-can 10-pin hermetic package, break-before-make TTL-compatible driver, and guaranteed performance across –55 °C to +125 °C.
Technical Context
The DG187AA/883 integrates two matched n-channel JFETs with a bipolar TTL-compatible driver to enforce break-before-make switching-preventing channel shorting and crosstalk. Its analog signal path supports bidirectional conduction with flat on-resistance across the full analog range (–12.5 V to +10 V), critical for precision video and telemetry applications.
It operates from ±15 V supplies (V+ to V– = 36 V max), with separate logic (VL) and reference (VR) rails enabling independent control voltage domains. Fault protection includes 20 V peak-to-peak off-state blocking and <–60 dB off isolation at 10 MHz, verified under MIL-STD-883 test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | –12.5 V to +10 V - Enables full-range switching of bipolar video/telemetry signals without clipping or distortion. |
| rDS(on) | 30 Ω typical - Low, flat on-resistance ensures minimal gain error and signal attenuation in precision paths. |
| ID(on) Leakage | <2 nA - Minimizes DC offset and settling errors in sample/hold and guidance control circuits. |
| Turn-On/Off Time | 85 ns / 95 ns - Supports high-speed multiplexing in real-time telemetry and digital guidance systems. |
| Off Isolation | >50 dB at 1 MHz - Suppresses inter-channel crosstalk in multi-signal guidance and sensor fusion systems. |
| Supply Voltage Range | V+ to V– = 36 V - Allows robust operation in harsh environments with wide supply tolerances. |
| Operating Temp | –55 °C to +125 °C - Qualified per MIL-PRF-38535 for extended life in space and missile systems. |
Pinout & Package
Package: 10-pin metal can (hermetic, side-brazed), compliant with JAN38510 mechanical specifications and MIL-STD-883 screening.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V– | Negative supply rail - Common return for analog and logic sections; tied to substrate and case. |
| 2 | V+ | Positive supply rail - Powers JFET switches and internal driver; must be decoupled near pin. |
| 3 | VL | Logic supply - Provides TTL-compatible input threshold (0.8 V low / 2.0 V high) independent of analog rails. |
| 4 | VR | Reference supply - Sets logic reference level; connected to ground in standard configuration. |
| 5 | IN | Digital control input - Active-high TTL signal selects SPDT state (SW1 ON/SW2 OFF or vice versa). |
| 6 | S1 | Source 1 - Analog input/output terminal for first SPDT pole; bidirectional, low-leakage path. |
| 7 | S2 | Source 2 - Analog input/output terminal for second SPDT pole; electrically isolated from S1 when off. |
| 8 | D1 | Drain 1 - Analog output/input terminal for first SPDT throw; matches S1 impedance and bandwidth. |
| 9 | D2 | Drain 2 - Analog output/input terminal for second SPDT throw; maintains symmetry with D1. |
| 10 | NC | No connect - Internally unused; must remain unconnected per MIL-PRF-38535 requirements. |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Eliminates momentary channel shorting during state transition, preventing signal corruption in guidance loops. |
| Constant rDS(on) over analog range | Ensures linear gain and minimal harmonic distortion in video and telemetry signal paths. |
| Radiation hardness | Qualified per MIL-PRF-38535 Class B - Meets total ionizing dose (TID) and single-event effect (SEE) requirements for spaceflight. |
| Low charge injection | Minimizes output voltage spikes during switching - critical for sample-and-hold accuracy in ADC front-ends. |
| High off-isolation & low crosstalk | Supports simultaneous multi-channel telemetry acquisition without inter-channel interference. |
Applications
| Telemetry Signal Routing | Guidance Control Interface |
|---|---|
Use Scenario: Multiplexing multiple sensor outputs (accelerometer, gyroscope, pressure) onto a shared downlink channel in missile telemetry systems. IC Role / Device Role / Timing Role: Precision SPDT analog switch providing break-before-make signal path selection with sub-100 ns timing control. Use Value: Maintains signal integrity across –12.5 V to +10 V range while delivering >50 dB channel isolation at 1 MHz to prevent cross-talk between critical flight sensors. |
Use Scenario: Routing feedback signals from servo actuators to flight control computers in real-time closed-loop guidance systems. IC Role / Device Role / Timing Role: High-reliability analog switch enabling fault-tolerant signal reconfiguration under radiation exposure. Use Value: Radiation-hardened construction and 30 Ω flat on-resistance ensure stable loop gain and phase margin across temperature and mission duration. |
| Video Signal Switching | Sample/Hold Circuit Selection |
Use Scenario: Selecting between primary and backup camera feeds in space-based Earth observation platforms. IC Role / Device Role / Timing Role: Bidirectional SPDT switch handling composite video signals with minimal distortion and feedthrough. Use Value: Low 2 nA channel-on leakage and <–60 dB feedthrough at 10 MHz preserve image fidelity and SNR in high-resolution imaging chains. |
Use Scenario: Enabling/disabling hold capacitors in radiation-tolerant data acquisition systems for launch vehicle instrumentation. IC Role / Device Role / Timing Role: Low-leakage analog switch isolating hold capacitor during acquisition phase to minimize droop. Use Value: <2 nA ID(on) and 85 ns turn-on time support accurate sampling of fast transients with sub-mV settling error over full temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DG187AP/883 | 14-pin sidebraze ceramic package; identical electrical specs but different mechanical form factor and thermal derating (825 mW vs. 450 mW). | Used where board-level hermeticity or higher power dissipation is required; not interchangeable without PCB redesign. | Select DG187AP/883 only when 14-pin sidebraze mounting or higher thermal capacity is mandated by system layout. |
| JM38510/11105BIA | Same device - dual military part number per MIL-PRF-38535; identical die, package, and screening; functionally and physically identical to DG187AA/883. | No application difference - used interchangeably in DoD procurement documentation and legacy schematics. | Choose JM38510/11105BIA when compliance with MIL-STD-454 or DoD source control drawings is contractually required. |
Compared with DG187AP/883, the DG187AA/883 offers lower profile and reduced thermal mass in a 10-pin metal can, simplifying integration into compact guidance modules; compared with JM38510/11105BIA, it is the same device with identical performance, qualification, and fit-differing only in manufacturer labeling convention.
Availability
DG187AA/883 is available at Aetrix Electronics and suitable for telemetry signal routing, guidance control interface, video signal switching, and sample/hold circuit selection requiring stable component supply across extended temperature and radiation environments.
Supply support for DG187AA/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 designs and manufactures high-reliability discrete semiconductors and analog ICs, specializing in ruggedized components for defense, aerospace, and industrial applications.
The DG187AA/883 belongs to the DG186/187/188 family of radiation-hardened SPDT analog switches, engineered specifically for precision signal routing in mission-critical guidance, telemetry, and imaging systems operating under extreme environmental stress.
FAQ
What is the maximum analog signal voltage range supported by the DG187AA/883?
The DG187AA/883 supports an analog signal range of –12.5 V to +10 V when operated with V+ = +15 V and V– = –15 V. This range is guaranteed by design and enables distortion-free switching of bipolar telemetry and video signals without clipping or gain nonlinearity. The DG187AA/883 maintains flat on-resistance across this entire span, ensuring consistent signal fidelity.
Is the DG187AA/883 radiation hardened, and what qualification standard does it meet?
Yes, the DG187AA/883 is radiation hardened and qualified per MIL-PRF-38535 Class B, including total ionizing dose (TID) testing and single-event effect (SEE) characterization. It is screened to JAN38510 requirements and documented in Vishay's S-52895 datasheet Rev. E. The DG187AA/883 meets the same radiation tolerance as its military counterpart JM38510/11105BIA.
What is the pin-compatible alternative to the DG187AA/883 in a 14-pin package?
The DG187AP/883 is the direct functional equivalent in a 14-pin sidebraze ceramic package, sharing identical electrical specifications, temperature range, and radiation qualification. However, it is not pin-compatible with the DG187AA/883 due to different pin count, layout, and thermal pad configuration. The DG187AA/883 uses a 10-pin metal can, while the DG187AP/883 uses a 14-pin sidebraze footprint.
Does the DG187AA/883 require external pull-up or pull-down resistors on its IN pin?
No, the DG187AA/883 has TTL-compatible input thresholds (VINL ≤ 0.8 V, VINH ≥ 2.0 V) and does not require external biasing resistors. Its input current is specified at <0.01 µA for VIN = 5 V and –250 µA for VIN = 0 V, allowing direct connection to standard TTL or CMOS logic outputs. The DG187AA/883 integrates sufficient input hysteresis and drive strength to eliminate external components in most guidance and telemetry interfaces.
What is the thermal derating specification for the DG187AA/883 package?
The DG187AA/883 in its 10-pin metal can package has a maximum power dissipation of 450 mW at +75 °C ambient, with linear derating of 6 mW/°C above that temperature. This derating ensures safe operation up to +125 °C junction temperature when mounted per MIL-STD-202 method 208. The DG187AA/883 thermal performance is validated under MIL-PRF-38535 screening conditions.
DG187AA/883 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):
- 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:
- TO-100-10
DG187AA/883 FAQ
1.How can I place an order for DG187AA/883 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG187AA/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 DG187AA/883 reliable?
The price and inventory of DG187AA/883 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG187AA/883 is usually 5 days.
3.What payment methods are accepted for DG187AA/883?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG187AA/883 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG187AA/883?
DG187AA/883 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG187AA/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 DG187AA/883?
For technical support, including DG187AA/883 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG187AA/883 requirements.
6.How does Aetrix verify that DG187AA/883 is sourced from the original manufacturer or authorized distributors?
All DG187AA/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 DG187AA/883 meets industry standards.
7.What is the process for return or replacement of DG187AA/883?
All DG187AA/883 units undergo pre-shipment inspection (PSI). If there is an issue with DG187AA/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 DG187AA/883 part is unused and in its original packaging.
Return procedure for DG187AA/883:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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