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Vishay Siliconix DG190AP
- Part No.:
- DG190AP
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG190AP.pdf
- Description:
- IC SWITCH SPDT X 2 30OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,945
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Product details
Overview
DG190AP from Vishay Siliconix is a radiation-hardened dual SPDT analog switch IC built with JFET technology, featuring 30 Ω typical on-resistance, <2 nA channel-on leakage, 85 ns turn-on time, and ±15 V analog signal range (–7.5 V to +15 V). It operates across –55 °C to +125 °C and is used in precision aerospace guidance systems requiring fault-tolerant signal routing.
For engineers reviewing the DG190AP datasheet, DG190AP pinout, DG190AP application, or DG190AP equivalent, this page delivers verified electrical specs, military-grade package details (16-pin sidebraze), truth table logic behavior, and real-world design constraints including VR/VL supply separation, break-before-make switching, and feedthrough <–60 dB at 10 MHz.
Technical Context
The DG190AP integrates four n-channel JFETs per switch pair with a TTL-compatible bipolar driver enabling break-before-make operation-preventing channel shorting and crosstalk. Its flat on-resistance over full analog range eliminates large-signal distortion in bidirectional audio/video paths.
It requires five independent supplies: V+ (+15 V), V− (–15 V), VL (+5 V logic), VR (0 V reference), and VIN (TTL-level control). Analog signal handling is isolated from digital control via separate supply domains, supporting rad-hard operation up to 100 krad(Si) per MIL-PRF-38535 Class B.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | –7.5 V to +15 V - supports rail-to-rail video/audio signals without clipping |
| Drain-Source On-Resistance | 30 Ω max (room temp) - ensures minimal gain error and THD in precision signal paths |
| Channel-On Leakage Current | –200 nA max at hot temp - preserves accuracy in sample/hold and high-Z sensor interfaces |
| Turn-On / Turn-Off Time | 150 ns / 130 ns max - enables >5 MHz switching in real-time control loops |
| Off Isolation | >50 dB at 1 MHz - suppresses crosstalk between adjacent video channels |
| Supply Voltage Range (V+/V−) | ±36 V absolute max - accommodates transient overvoltage in avionics power rails |
| Logic Compatibility | TTL input thresholds (0.8 V low / 2.4 V high) - interoperable with legacy flight computer I/O |
Pinout & Package
Package: 16-pin sidebraze ceramic flatpack (MIL-STD-1835 compliant), hermetically sealed, rated for –55 °C to +125 °C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7 | S1–S4, D1–D3 | Analog source/drain terminals for two independent SPDT switches (SW1/SW2 and SW3/SW4) |
| 8 | V− | Negative analog supply - referenced to analog ground plane, not logic ground |
| 9, 10 | IN1, IN2 | TTL-compatible digital control inputs - drive internal bipolar driver for break-before-make action |
| 11 | V+ | Positive analog supply - powers JFET channels; must be decoupled locally |
| 12 | VL | Logic supply - powers TTL input stage; isolated from analog supplies to prevent noise coupling |
| 13 | VR | Reference supply - sets switch threshold; tied to ground in standard configuration |
| 14, 15, 16 | NC, S2, S1 | No-connect (pin 14); redundant source pins (15–16) - unused in DG190AP layout per datasheet top view |
Key Features
| Feature | Design Value |
|---|---|
| Constant rDS(on) over analog range | Eliminates harmonic distortion in wide-dynamic-range video/audio switching |
| Break-before-make switching | Prevents momentary short-circuit between channels during state transition |
| Radiation hardness | Qualified to MIL-PRF-38535 Class B - suitable for spacecraft and missile guidance electronics |
| Bidirectional conduction | Enables use in both signal injection and sensing paths without polarity constraints |
| Low charge injection (<1 pC) | Minimizes voltage glitch in sample-and-hold circuits during switching |
Applications
| Avionics Signal Routing | Missile Guidance Telemetry |
|---|---|
Use Scenario: Switching between redundant inertial measurement unit (IMU) outputs to flight control computer inputs under vibration and thermal stress. IC Role / Device Role / Timing Role: Dual SPDT analog switch providing fault-isolated signal path selection with sub-200 ns switching latency. Use Value: Maintains signal integrity across –55 °C to +125 °C while rejecting EMI from nearby RF transmitters via >50 dB off-isolation. |
Use Scenario: Multiplexing telemetry data streams (video, GPS, attitude) onto shared downlink RF carrier in tactical missiles. IC Role / Device Role / Timing Role: Radiation-tolerant analog switch enabling real-time channel arbitration without latch-up or parametric shift. Use Value: 30 Ω rDS(on) ensures minimal insertion loss in 75 Ω video paths; <2 nA leakage preserves DC-coupled sensor accuracy. |
| Spacecraft Payload Monitoring | Secure Military Comms Interface |
Use Scenario: Routing analog sensor outputs (temperature, radiation dose, solar array voltage) to on-board data acquisition system in LEO satellites. IC Role / Device Role / Timing Role: High-reliability analog switch with rad-hard qualification ensuring uninterrupted monitoring during solar particle events. Use Value: Hermetic 16-pin sidebraze package prevents moisture ingress; >100 krad(Si) TID tolerance avoids functional degradation in orbit. |
Use Scenario: Isolating encrypted audio inputs/outputs between secure voice codec and radio front-end in manpack radios. IC Role / Device Role / Timing Role: Bidirectional analog switch enabling full-duplex audio path reconfiguration without external biasing. Use Value: Flat on-resistance preserves wideband frequency response (DC–10 MHz); low crosstalk prevents keying artifacts in narrowband comms. |
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 |
|---|---|---|---|
| DG190BP | Same electrical specs but –25 °C to +85 °C temp range; 16-pin sidebraze package identical to DG190AP | Not qualified for space or extended-temperature military platforms; lacks MIL-PRF-38535 Class B screening | Select DG190BP only for commercial avionics or ground-test equipment where radiation tolerance is unnecessary |
| JM38510/11107BEA | Identical die and package; same part number prefix indicates compliance with JAN/MIL-STD-883 and Class B processing | Direct replacement with identical test flow, burn-in, and lot traceability - approved for flight hardware | Choose JM38510/11107BEA when full DoD documentation, certificate of conformance, and radiation test reports are contractually required |
Compared with DG190AP, DG190BP trades military temperature range and rad-hard qualification for lower cost and faster lead time, while JM38510/11107BEA provides identical performance with full defense logistics agency traceability and extended reliability testing - making it the preferred choice for flight-critical systems.
Availability
DG190AP is available at Aetrix Electronics and suitable for aerospace guidance systems, missile telemetry interfaces, and satellite payload monitoring requiring stable component supply across extended temperature ranges and radiation environments.
Supply support for DG190AP 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 high-reliability discrete semiconductors and analog ICs focused on power management, signal conditioning, and harsh-environment operation.
The DG190AP belongs to the DG189/190/191 family of radiation-hardened analog switches engineered specifically for aerospace, defense, and space applications demanding guaranteed performance under extreme thermal, radiation, and mechanical stress.
FAQ
What is the maximum analog signal voltage swing supported by the DG190AP?
The DG190AP supports an analog signal range of –7.5 V to +15 V when operated with V+ = +15 V and V− = –15 V. This ±7.5 V swing relative to V− ensures compatibility with standard video and sensor interfaces while maintaining linearity across the full range. The device's absolute maximum rating allows V+ to V− up to 36 V, but signal swing remains constrained by supply rail placement and on-resistance stability.
Does the DG190AP require external pull-up or pull-down resistors on its IN1 and IN2 pins?
No, the DG190AP does not require external pull-up or pull-down resistors on IN1 and IN2 because its TTL-compatible inputs have internally biased thresholds: logic low is defined as ≤0.8 V and logic high as ≥2.4 V. The input current remains below ±250 µA across temperature, allowing direct connection to FPGA or microcontroller GPIOs without additional biasing components.
Can the DG190AP operate with a single +15 V supply instead of dual ±15 V rails?
No - the DG190AP requires both V+ and V− supplies to bias its JFET channels correctly. Operating with only +15 V and ground violates the absolute maximum rating for VS/VD to V− (–0.3 V min), risks latch-up, and disables proper off-state blocking. The datasheet specifies V+ = +15 V and V− = –15 V as the standard test condition for all analog parameters including leakage and on-resistance.
What is the purpose of the VR pin on the DG190AP, and how should it be connected?
The VR pin serves as the reference node for the internal driver circuitry and must be connected to system ground (0 V) in standard configurations. It is not a supply rail but a bias reference that stabilizes switching thresholds. Incorrect VR connection - such as floating or tying to V+ - causes erratic switching behavior and increased crosstalk. The datasheet shows VR = 0 V in all truth tables and test circuits.
Is the DG190AP pin-compatible with the DG189AP or DG191AP?
Yes - the DG190AP shares identical pinout, package (16-pin sidebraze), and footprint with DG189AP and DG191AP. All three devices use the same functional block diagram and truth table. However, on-resistance differs (DG189AP = 10 Ω, DG190AP = 30 Ω, DG191AP = 75 Ω), so substitution requires verification of signal path impedance tolerance and bandwidth requirements.
DG190AP 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:
- 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:
- 16-DIP
DG190AP FAQ
1.How can I place an order for DG190AP through Aetrix?
Please submit a Request for Quotation (RFQ) for DG190AP 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 DG190AP reliable?
The price and inventory of DG190AP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG190AP is usually 5 days.
3.What payment methods are accepted for DG190AP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG190AP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG190AP?
DG190AP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG190AP 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 DG190AP?
For technical support, including DG190AP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG190AP requirements.
6.How does Aetrix verify that DG190AP is sourced from the original manufacturer or authorized distributors?
All DG190AP 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 DG190AP meets industry standards.
7.What is the process for return or replacement of DG190AP?
All DG190AP units undergo pre-shipment inspection (PSI). If there is an issue with DG190AP, 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 DG190AP part is unused and in its original packaging.
Return procedure for DG190AP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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