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Vishay Siliconix DG387AAK/883
- Part No.:
- DG387AAK/883
- Manufacturer:
- Vishay Siliconix
- Package:
- 14-CDIP (0.300", 7.62mm)
- Datasheet:
-
DG387AAK/883.pdf
- Description:
- IC SW DPST-NOX2 50OHM 14CERDIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,247
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Product details
Overview
DG387AAK/883 from Vishay Siliconix is a hermetically sealed, 10-pin metal-can, dual SPDT CMOS analog switch optimized for military-grade instrumentation and process control systems. It operates over –55 °C to +125 °C, supports ±15 V dual supplies (or single 0–15 V), delivers 30 Ω typical rDS(on), guarantees break-before-make switching, and features rail-to-rail analog signal handling up to ±15 V.
For engineers reviewing the DG387AAK/883 datasheet, DG387AAK/883 pinout, DG387AAK/883 application, or DG387AAK/883 equivalent, key selection criteria include guaranteed BBM timing, low charge injection (10 pC), high off-isolation (62 dB), and compatibility with TTL/CMOS logic levels - critical for precision signal routing in harsh-environment test equipment and avionics interfaces.
Technical Context
The DG387AAK/883 implements two independent SPDT analog switches using Vishay's PLUS-40 CMOS process, enabling low power dissipation (3.5 mW typical) and latchup immunity via epitaxial isolation. Each switch conducts bidirectionally with matched on-resistance and maintains full rail-to-rail analog voltage range (±15 V) under dual supply or 0–15 V single-supply operation.
It features TTL/CMOS-compatible digital inputs (logic "0" ≤ 0.8 V, logic "1" ≥ 4 V), guaranteed break-before-make timing (50 ns min), and internal clamping diodes protecting S/D terminals against overvoltage transients up to (V−) −2 V or (V+) +2 V - essential for robust signal integrity in MIL-STD-883 qualified systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V - supports full rail-to-rail signal swing without clipping or distortion |
| rDS(on) (Typ) | 30 Ω - ensures minimal insertion loss and signal attenuation in precision analog paths |
| Break-Before-Make Time | 50 ns minimum - prevents momentary shorting between signal paths during switching |
| Charge Injection | 10 pC - limits voltage glitch at switch output, critical for integrator and sample-hold circuits |
| Off-Isolation | 62 dB at 500 kHz - suppresses crosstalk between channels in multi-signal routing applications |
| Supply Current (I+, I−) | 0.23–1.0 mA / −10 to −0.001 µA - enables ultra-low-power operation in battery-backed instrumentation |
| Operating Temperature | −55 °C to +125 °C - qualified per MIL-PRF-38535 Class K for extended environmental reliability |
Pinout & Package
Package: 10-pin hermetic metal can (case connected to V− and substrate). Pin numbering follows standard top-view orientation with pin 1 at top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | S2 | Source terminal of second SPDT switch - bidirectional analog path input/output |
| 2 | NC | No connect - internally unconnected; must remain floating or grounded per design guidelines |
| 3 | IN | Common digital control input for both SPDT sections - drives internal CMOS logic |
| 4 | NC | No connect - electrically isolated; no routing or termination required |
| 5 | NC | No connect - unused pin; leave unconnected per MIL-STD-883 mechanical requirements |
| 6 | V− | Negative supply rail - also tied to metal can case and substrate for EMI shielding and latchup prevention |
| 7 | V+ | Positive supply rail - powers internal CMOS circuitry and defines upper analog voltage limit |
| 8 | NC | No connect - thermally and electrically isolated; no functional role |
| 9 | D1 | Drain terminal of first SPDT switch - selectable analog output path (SPDT throw) |
| 10 | D2 | Drain terminal of second SPDT switch - independent analog output path with matched rDS(on) |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed Break-Before-Make | Prevents signal shorting during state transition - mandatory for safe multiplexing in fault-tolerant systems |
| Rail-to-Rail Analog Operation | Supports ±15 V signal range without level-shifting - simplifies front-end design in wide-dynamic-range instrumentation |
| Low Charge Injection (10 pC) | Minimizes voltage step error at output node - enables accurate integration and precision sampling |
| Hermetic Metal-Can Packaging | Ensures long-term reliability under thermal cycling, humidity, and radiation - certified per MIL-PRF-38535 Class K |
| PLUS-40 CMOS Process | Delivers 3.5 mW typical power consumption and latchup immunity - ideal for portable and space-constrained military platforms |
Applications
| Automated Test Equipment (ATE) | Aerospace Data Acquisition |
|---|---|
Use Scenario: Routing multiple sensor signals (thermocouples, strain gauges) to a shared ADC in a rack-mounted test controller. IC Role / Device Role / Timing Role: Dual SPDT analog switch providing channel-selectable signal path with guaranteed BBM timing to prevent cross-talk during reconfiguration. Use Value: 62 dB off-isolation and 10 pC charge injection preserve measurement accuracy across 16-bit ADC inputs under MIL-STD-704 power conditions. |
Use Scenario: Selecting between redundant inertial measurement unit (IMU) outputs in flight control electronics. IC Role / Device Role / Timing Role: Fault-mitigating analog switch ensuring no transient short between primary and backup signal paths during switchover. Use Value: Guaranteed 50 ns BBM time and −55 °C to +125 °C operation meet DO-160E Section 22 vibration and temperature requirements. |
| Process Control Loop Monitoring | Military Communications Transceivers |
Use Scenario: Multiplexing 4–20 mA current loop diagnostics into a central health-monitoring microcontroller. IC Role / Device Role / Timing Role: Bidirectional analog switch interfacing industrial current loops with low-voltage logic while maintaining galvanic separation. Use Value: ±15 V analog range and internal clamping diodes protect against field-induced transients per IEC 61000-4-4. |
Use Scenario: Switching RF front-end calibration paths (LO injection, antenna tuning) in S-band tactical radios. IC Role / Device Role / Timing Role: Low-rDS(on) analog switch routing DC bias and IF signals in transmit/receive chain calibration circuits. Use Value: 30 Ω rDS(on) and <14 pF off-capacitance minimize insertion loss and harmonic distortion in 200–2500 MHz subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DG381BQ | 16-pin SOIC, pin-compatible with DG384A but not DG387A; rDS(on) = 35 Ω typ, 125 °C max rating | Commercial/industrial use only; lacks MIL-PRF-38535 qualification and hermetic sealing | Select when cost-sensitive non-military designs require same logic interface and rail-to-rail operation |
| ADG1419BRUZ | 16-pin TSSOP, dual SPDT, rDS(on) = 1.3 Ω typ, but only rated to +125 °C (not −55 °C); requires external VLOGIC supply | Higher performance in low-distortion audio or medical imaging; no military temp or hermetic qualification | Choose for ultra-low on-resistance where extended cold temperature operation is not required |
Compared with DG387AAK/883, DG381BQ offers lower cost and surface-mount compatibility but sacrifices hermetic reliability and cold-temperature capability, while ADG1419BRUZ delivers superior rDS(on) and bandwidth at the expense of MIL-spec compliance and true −55 °C startup assurance.
Availability
DG387AAK/883 is available at Aetrix Electronics and suitable for automated test equipment, aerospace data acquisition, and process control loop monitoring requiring stable component supply under extended temperature and radiation-hardened conditions.
Supply support for DG387AAK/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 leader in discrete semiconductors and passive components, specializing in high-reliability, high-performance devices for demanding industrial and defense applications.
The DG387AAK/883 belongs to Vishay's MIL-PRF-38535 qualified analog switch family, engineered specifically for precision signal routing in mission-critical instrumentation, avionics, and hardened communications systems.
FAQ
What is the maximum analog signal voltage range supported by the DG387AAK/883?
The DG387AAK/883 supports a full rail-to-rail analog signal range of ±15 V when operated with dual supplies (V+ = +15 V, V− = −15 V). Under single-supply operation (V− = 0 V), the analog range extends from 0 V to V+, up to 15 V. Exceeding these limits risks triggering internal clamping diodes and violating absolute maximum ratings.
Does the DG387AAK/883 require external pull-up or pull-down resistors on its digital control input?
No, the DG387AAK/883 does not require external pull-up or pull-down resistors on its IN pin. Its digital input is CMOS/TTL compatible with defined thresholds (logic "0" ≤ 0.8 V, logic "1" ≥ 4 V at V+ = 15 V), and internal input structure provides sufficient noise margin without external biasing - confirmed in the official Vishay S-04302 datasheet.
How is the metal can case of the DG387AAK/883 electrically connected, and what is its function?
The metal can case of the DG387AAK/883 is internally bonded to the V− pin and substrate. This connection provides electromagnetic interference (EMI) shielding, improves thermal conduction, and establishes a low-impedance path for latchup prevention - a key reliability feature verified in Vishay's PLUS-40 CMOS process and MIL-PRF-38535 Class K qualification testing.
Can the DG387AAK/883 be used with a single 5 V supply, and what performance trade-offs apply?
Yes, the DG387AAK/883 supports single-supply operation down to 5 V (V− = 0 V, V+ = 5 V), but with documented trade-offs: rDS(on) increases significantly (to ~100 Ω typ), switching speed slows (tON/tOFF > 300 ns), and analog range reduces to 0–5 V. These degradations are characterized in the Vishay S-04302 Typical Characteristics curves.
What is the meaning of "BBM" in the context of DG387AAK/883 switching behavior?
"BBM" stands for Break-Before-Make - a guaranteed timing sequence where the previously selected switch path opens completely before the new path closes. For the DG387AAK/883, this is specified as a minimum 50 ns open interval, preventing momentary short-circuits between D1 and D2 during IN signal transitions - essential for safe signal routing in redundant or fault-tolerant architectures.
DG387AAK/883 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- DPST - NO
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 50Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±15V
- Switch Time (Ton, Toff) (Max):
- 300ns, 250ns
- -3db Bandwidth:
- -
- Charge Injection:
- 10pC
- Channel Capacitance (CS(off), CD(off)):
- 14pF, 14pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -74dB @ 500kHz
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-CERDIP
DG387AAK/883 FAQ
1.How can I place an order for DG387AAK/883 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG387AAK/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 DG387AAK/883 reliable?
The price and inventory of DG387AAK/883 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG387AAK/883 is usually 5 days.
3.What payment methods are accepted for DG387AAK/883?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG387AAK/883 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG387AAK/883?
DG387AAK/883 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG387AAK/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 DG387AAK/883?
For technical support, including DG387AAK/883 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG387AAK/883 requirements.
6.How does Aetrix verify that DG387AAK/883 is sourced from the original manufacturer or authorized distributors?
All DG387AAK/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 DG387AAK/883 meets industry standards.
7.What is the process for return or replacement of DG387AAK/883?
All DG387AAK/883 units undergo pre-shipment inspection (PSI). If there is an issue with DG387AAK/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 DG387AAK/883 part is unused and in its original packaging.
Return procedure for DG387AAK/883:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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