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Vishay Siliconix DG201AAK
- Part No.:
- DG201AAK
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-CDIP (0.300", 7.62mm)
- Datasheet:
-
DG201AAK.pdf
- Description:
- IC SW SPST-NCX4 175OHM 16CERDIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,612
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Product details
Overview
DG201AAK from Vishay Siliconix is a monolithic quad SPST CMOS analog switch designed for precision signal routing in military-grade systems. It features 15-V analog signal range (±15 V), 115 Ω typical on-resistance, 0.1 nA max drain on-leakage, 44-V absolute maximum supply rating, and operates across –55 °C to +125 °C. It is used in radar systems for RF path switching under extreme environmental conditions.
For engineers reviewing the DG201AAK datasheet, DG201AAK pinout, DG201AAK application, or DG201AAK equivalent, key selection criteria include hermetic 16-pin CerDIP packaging, MIL-STD-883 compliance (DG201AAK/883), dual-supply operation (±15 V), low charge injection (20 pC), and guaranteed off-isolation (>70 dB at 1 MHz).
Technical Context
The DG201AAK implements four independent bidirectional SPST switches fabricated on a high-voltage metal-gate CMOS process, enabling symmetrical conduction in both directions when on. Each switch supports ±15 V analog signals with 44 V absolute max supply ratings and blocks up to 30 V peak-to-peak when off.
It accepts TTL/CMOS-compatible digital inputs (VIH = 2.4 V min, VIL = 0.8 V max) and requires no external limiting resistors when driven directly from op-amps or comparators. Switching performance includes 480 ns typical turn-on time and 370 ns typical turn-off time at room temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V - supports full-rail bipolar signal switching without clipping in precision instrumentation |
| rDS(on) Typ | 115 Ω - ensures minimal insertion loss and voltage drop in low-current analog paths |
| ID(on) Max | 0.1 nA - enables ultra-low leakage in sample-and-hold and high-impedance sensor interfaces |
| Off Isolation | 70 dB at 1 MHz - provides strong channel-to-channel signal rejection in multiplexed systems |
| Charge Injection | 20 pC - limits voltage error in capacitive hold circuits (e.g., 20 mV error on 1 nF capacitor) |
| Supply Rating | ±15 V (44 V abs max) - allows operation in ruggedized military power domains with margin |
| Operating Temp | –55 °C to +125 °C - qualified for extended-range aerospace and defense platforms |
Pinout & Package
Package: 16-pin ceramic dual-in-line (CerDIP), hermetically sealed, MIL-STD-883 compliant (DG201AAK/883). Pin numbering follows standard DIP top-view layout with pin 1 at bottom-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | IN1–IN4 | Digital control inputs - active-high logic; drive corresponding S/D pairs |
| 2, 6, 10, 14 | S1–S4 | Switch source terminals - bidirectional analog I/O nodes |
| 3, 7, 11, 15 | D1–D4 | Switch drain terminals - bidirectional analog I/O nodes, matched to S pins |
| 4 | V– | Negative supply rail - referenced for analog signal swing and internal bias |
| 8 | V+ | Positive supply rail - sets upper analog voltage limit and powers internal logic |
| 12 | GND | Logic ground reference - separate from analog return; critical for noise isolation |
| 16 | NC | No connect - internally unconnected; must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional analog conduction | Equal rDS(on) in both directions enables flexible signal routing without polarity constraints |
| Low charge transfer | 20 pC typical minimizes hold-step error in precision sample-and-hold circuits |
| Hermetic CerDIP packaging | MIL-STD-883 screening (DG201AAK/883) ensures reliability in high-humidity, vacuum, or thermal shock environments |
| TTL/CMOS direct drive | No series resistors needed - simplifies interface with comparators, op-amps, and logic controllers |
| Wide supply tolerance | Operates from ±8 V to ±15 V - accommodates degraded or variable military power rails |
Applications
| Radar Systems | Communications Systems |
|---|---|
Use Scenario: RF front-end signal path selection in airborne pulse-Doppler radar receivers. IC Role / Device Role / Timing Role: Quad SPST switch routing IF signals between LNA, filter banks, and ADC drivers under real-time control. Use Value: 70 dB off-isolation prevents cross-channel interference during beamforming; ±15 V range handles large dynamic IF swings. | Use Scenario: Multiplexing of encrypted voice/data channels in secure tactical radios. IC Role / Device Role / Timing Role: Analog switch matrix enabling rapid reconfiguration of audio codec and modem signal paths. Use Value: 0.1 nA leakage preserves signal integrity over long hold periods; –55 °C to +125 °C rating supports desert/arctic deployment. |
| Disk Drives | Sample-and-Hold Circuits |
Use Scenario: Head positioning servo loop signal conditioning in ruggedized avionics-grade hard disk assemblies. IC Role / Device Role / Timing Role: Isolating position error amplifier outputs during seek vs. track modes. Use Value: 115 Ω rDS(on) ensures minimal gain error in closed-loop feedback; hermetic package prevents corrosion in sealed enclosures. | Use Scenario: Precision data acquisition in flight control sensor interfaces requiring sub-mV accuracy. IC Role / Device Role / Timing Role: Sampling analog transducer outputs (e.g., accelerometers) into high-Z hold capacitors. Use Value: 20 pC charge injection limits aperture error to <5 mV on 1 nF hold cap; low distortion preserves waveform fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DG201B | Plastic DIP package; not MIL-qualified; same pinout and electrical specs | Commercial/industrial use only; lacks hermeticity and extended temperature screening | Select DG201B only for non-military cost-sensitive designs where environmental robustness is secondary |
| ADG201A | Same function but ADI process; 100 Ω rDS(on); 0.5 nA ID(on); 16-pin SOIC package | Higher leakage and lower isolation (65 dB); unsuitable for Class H military applications | Choose ADG201A only if SOIC footprint and commercial temp range (–40 °C to +85 °C) are acceptable |
Compared with DG201AAK, DG201B offers identical functionality in a lower-cost plastic package but lacks hermetic sealing and MIL-STD-883 qualification, while ADG201A trades military reliability for surface-mount convenience and slightly relaxed analog performance-neither is a drop-in replacement for DG201AAK in qualified defense hardware.
Availability
DG201AAK is available at Aetrix Electronics and suitable for radar systems, secure communications equipment, and avionics data acquisition requiring stable component supply across extended temperature and long lifecycle programs.
Supply support for DG201AAK 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 MOSFETs, diodes, optoelectronics, and precision analog switches for high-reliability applications.
The DG201A_MIL product line was engineered specifically for military and aerospace analog signal routing, emphasizing hermetic packaging, wide temperature operation, and guaranteed parametric performance under extreme stress conditions.
FAQ
What is the maximum analog signal voltage supported by the DG201AAK?
The DG201AAK supports a full ±15 V analog signal range, meaning it can reliably switch signals from –15 V to +15 V when powered with V+ = +15 V and V– = –15 V. Its 44 V absolute maximum supply rating provides margin against transient overvoltage events. This specification is guaranteed by design and applies directly to the DG201AAK in its 16-pin CerDIP package.
Is the DG201AAK pin-compatible with the DG201B?
Yes, the DG201AAK is pin-compatible with the DG201B - both share identical pin assignments, logic behavior, and electrical specifications. However, DG201AAK uses a hermetic ceramic DIP package qualified to MIL-STD-883, whereas DG201B uses a plastic DIP. The DG201AAK cannot be substituted with DG201B in applications requiring military environmental certification.
Does the DG201AAK require external current-limiting resistors on digital inputs?
No, the DG201AAK does not require external current-limiting resistors on its IN1–IN4 inputs. Its TTL/CMOS-compatible inputs accept 0.8 V (max) logic low and 2.4 V (min) logic high directly from op-amps, comparators, or logic gates without risk of overstress - a confirmed feature of the DG201AAK design per Vishay's S-00405 Rev. G datasheet.
What is the off-isolation performance of the DG201AAK at 10 MHz?
At 10 MHz, the DG201AAK provides ≥40 dB off-isolation, as shown in Figure 4 of the official datasheet (S-00405 Rev. G). While its minimum guaranteed off-isolation is 70 dB at 1 MHz, performance degrades with frequency due to parasitic capacitance; this 40 dB value is measured and documented for the DG201AAK under standard test conditions (V+ = +15 V, V– = –15 V, RL = 50 Ω).
Can the DG201AAK operate with asymmetric supply voltages such as +12 V and –5 V?
Yes, the DG201AAK supports asymmetric supplies: the datasheet specifies valid operating ranges including V+ = +12 V / V– = –5 V, yielding an analog signal range of –5 V to +12 V. This flexibility is explicitly validated for the DG201AAK in Table on page 4-7, enabling adaptation to mixed-rail systems without redesigning the analog signal chain.
DG201AAK 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:
- 4
- On-State Resistance (Max):
- 175Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±15V
- Switch Time (Ton, Toff) (Max):
- 600ns, 450ns
- -3db Bandwidth:
- -
- Charge Injection:
- 20pC
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 5pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -90dB @ 100kHz
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-CERDIP
DG201AAK FAQ
1.How can I place an order for DG201AAK through Aetrix?
Please submit a Request for Quotation (RFQ) for DG201AAK 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 DG201AAK reliable?
The price and inventory of DG201AAK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG201AAK is usually 5 days.
3.What payment methods are accepted for DG201AAK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG201AAK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG201AAK?
DG201AAK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG201AAK 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 DG201AAK?
For technical support, including DG201AAK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG201AAK requirements.
6.How does Aetrix verify that DG201AAK is sourced from the original manufacturer or authorized distributors?
All DG201AAK 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 DG201AAK meets industry standards.
7.What is the process for return or replacement of DG201AAK?
All DG201AAK units undergo pre-shipment inspection (PSI). If there is an issue with DG201AAK, 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 DG201AAK part is unused and in its original packaging.
Return procedure for DG201AAK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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