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Vishay Siliconix DG417BDY
- Part No.:
- DG417BDY
- Manufacturer:
- Vishay Siliconix
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG417BDY.pdf
- Description:
- IC SWITCH SPST-NCX1 25OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,712
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Product details
Overview
DG417BDY from Vishay Siliconix is a precision monolithic single-pole single-throw (SPST) CMOS analog switch optimized for high-performance signal routing in ±15 V dual-supply systems. It delivers 15 Ω on-resistance, 110 ns turn-on time, and ±15 V analog signal range, enabling low-distortion switching in battery-powered instrumentation and test equipment.
For engineers reviewing the DG417BDY datasheet, DG417BDY pinout, DG417BDY application, or DG417BDY equivalent, key selection criteria include guaranteed break-before-make timing (for DG419B only), low charge injection (38 pC), TTL/CMOS logic compatibility, and SOIC-8 packaging with RoHS compliance.
Technical Context
The DG417BDY implements a single SPST switch using Vishay's high-voltage silicon gate (HVSG) process, supporting symmetric conduction in both directions when on and blocking up to the full supply rail when off. Its control logic is active-low: logic "0" (≤ 0.8 V) enables the switch; logic "1" (≥ 2.4 V) disables it.
On-resistance remains stable across temperature and analog voltage (e.g., 15 Ω typ. at ±15 V, 25 °C), while leakage currents are tightly specified: ≤ ±0.25 nA off-leakage and ≤ ±0.4 nA on-leakage over full operating range. An epitaxial layer prevents latchup, and internal diode clamping protects against analog signals exceeding V+ or V−.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V - supports full-rail signal switching without clipping in dual-supply precision systems |
| On-Resistance (RDS(on)) | 15 Ω typical - minimizes signal attenuation and gain error in precision measurement paths |
| Turn-On Time (tON) | 110 ns - enables fast multiplexing in data acquisition and automated test equipment |
| Off-Leakage Current | ±0.25 nA max - preserves accuracy in high-impedance sample-and-hold and sensor front-ends |
| Charge Injection | 38 pC - limits voltage glitch in switched-capacitor circuits and integrators |
| Supply Voltage Range | V+ = 20 V max, V− = −20 V max - accommodates industrial ±15 V rails with margin |
| Logic Compatibility | TTL and CMOS - simplifies interface with microcontrollers and FPGAs without level-shifting |
Pinout & Package
DG417BDY is housed in an 8-pin narrow SOIC package (JEDEC MS-012, 5.00 mm × 4.00 mm footprint), rated for −40 °C to +85 °C operation. The package features gull-wing leads, RoHS-compliant terminations, and 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (S) | Source terminal | Switch input node; bidirectional conduction path when enabled |
| 2 (D) | Drain terminal | Switch output node; connects to load or downstream circuitry |
| 3 (V−) | Negative supply rail | Bias reference for analog channel; must be connected to system V− |
| 4 (GND) | Digital ground | Reference for logic inputs and internal level shifters; separate from analog ground |
| 5 (IN) | Control input | Active-low enable: logic "0" turns switch ON; logic "1" turns OFF |
| 6 (V+) | Positive supply rail | Bias reference for analog channel; must be connected to system V+ |
| 7 (VL) | Logic supply | Provides power to digital control circuitry; typically 5 V, independent of analog rails |
| 8 (NC) | No connect | Internally unconnected; must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| High-voltage silicon gate process | Enables ±15 V analog switching and robust ESD tolerance without external protection |
| Bidirectional analog conduction | Eliminates signal polarity constraints in AC-coupled or differential signal paths |
| Low 38 pC charge injection | Reduces settling error in precision sampling circuits and reduces need for post-switch calibration |
| Epitaxial latchup immunity | Guarantees safe operation under transient overvoltage or hot-swap conditions |
| SOIC-8 and MSOP-8 packaging | Supports high-density PCB layouts while maintaining manufacturability and thermal performance |
Applications
| Precision Test Equipment | Precision Instrumentation |
|---|---|
Use Scenario: Automated calibration of multimeters and oscilloscope front-ends requiring nanovolt-level signal integrity. IC Role / Device Role / Timing Role: SPST analog switch routing reference voltages and calibration signals between DUT and metrology subsystems. Use Value: 15 Ω RDS(on) and ±0.25 nA leakage preserve absolute accuracy during auto-zero and offset correction cycles. | Use Scenario: Multiplexing thermocouple, RTD, and strain gauge inputs in portable data loggers. IC Role / Device Role / Timing Role: Low-leakage analog switch isolating high-impedance sensors from ADC input stages during channel scanning. Use Value: 38 pC charge injection prevents step errors in sigma-delta ADC integrators, ensuring <1 LSB drift over 100 ms sampling windows. |
| Battery-Powered Systems | Sample-and-Hold Circuits |
Use Scenario: Power management in handheld medical devices where supply current must stay below 1 µA in standby. IC Role / Device Role / Timing Role: Low-quiescent-current analog switch enabling/disabling sensor bias networks and signal chains. Use Value: 0.001 µA typical I+, I−, and IL extend battery life beyond 5 years in always-on monitoring modes. | Use Scenario: High-fidelity sample-and-hold stage in audio ADCs requiring sub-0.01% linearity over 20 kHz bandwidth. IC Role / Device Role / Timing Role: Precision switch capturing instantaneous analog values with minimal droop and aperture jitter. Use Value: 110 ns tON and 53 ns tOFF support >1 MSPS sampling rates while maintaining <0.001% THD+N. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617EUA+ | Higher RDS(on) (35 Ω typ.), wider supply range (±20 V), but higher charge injection (60 pC) | Less suitable for sub-16-bit precision sampling; better for rugged industrial signal routing | Select MAX4617EUA+ only if ±20 V operation is required and leakage tolerance >1 nA is acceptable |
| ADG1419BRMZ | Lower RDS(on) (1.3 Ω typ.), but requires higher logic supply (VL = 3.3 V or 5 V), no V− pin (single-supply only) | Not compatible with bipolar ±15 V systems; requires redesign of supply architecture | Choose ADG1419BRMZ only for new single-supply designs prioritizing ultra-low on-resistance over dual-rail flexibility |
Compared with DG417BDY, MAX4617EUA+ trades lower leakage and tighter charge injection for higher on-resistance and reduced speed, while ADG1419BRMZ achieves dramatically lower RDS(on) but abandons true bipolar operation-making DG417BDY the optimal choice for legacy ±15 V instrumentation upgrades requiring drop-in compatibility and proven long-term reliability.
Availability
DG417BDY is available at Aetrix Electronics and suitable for precision test equipment, battery-powered instrumentation, and sample-and-hold circuits requiring stable component supply across extended production lifecycles.
Supply support for DG417BDY 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 analog solutions for demanding industrial and military environments.
The DG417B series was engineered specifically for high-precision analog signal routing in portable and battery-powered systems where low power, low distortion, and small footprint are critical design constraints.
FAQ
What is the maximum allowable analog signal voltage range for DG417BDY?
The DG417BDY supports an analog signal range of ±15 V when operated with V+ = +15 V and V− = −15 V. Signals exceeding these rails are clamped by internal diodes; forward diode current must be limited to the device's maximum current ratings per datasheet Note a. Operation beyond ±15 V is not guaranteed and may cause permanent damage.
Does DG417BDY require a separate logic supply (VL)?
Yes, DG417BDY requires a dedicated logic supply (VL) pin (Pin 7), typically connected to 5 V. This supply powers the internal level-shifter and digital control circuitry independently from the analog rails (V+ and V−), ensuring reliable logic interfacing even when analog supplies differ from standard logic levels.
Is DG417BDY pin-compatible with DG418BDY or DG419BDY?
No, DG417BDY is not pin-compatible with DG418BDY or DG419BDY. While all three share the same SOIC-8 package outline, their pin functions differ: DG417BDY and DG418BDY are complementary SPST switches (active-low vs. active-high), whereas DG419BDY is an SPDT switch with distinct S1/S2/D pin assignments and break-before-make timing-requiring PCB layout changes for substitution.
What is the thermal derating behavior of DG417BDY in SOIC-8 package?
In the SOIC-8 package, DG417BDY has a power dissipation rating of 400 mW at ≤70 °C ambient. Above 70 °C, power must be linearly derated at 4 mW/°C, meaning maximum allowable power drops to 280 mW at 100 °C ambient. This derating ensures junction temperature remains within safe operating limits under sustained load.
Can DG417BDY be used in single-supply configurations (e.g., V+ = 12 V, V− = 0 V)?
Yes, DG417BDY supports single-supply operation. With V+ = 12 V and V− = 0 V, its analog signal range is 0–12 V, RDS(on) increases to 26 Ω typical, and tON extends to 100 ns. All specifications-including leakage, charge injection, and logic thresholds-remain valid, making it suitable for industrial PLC I/O modules and sensor interfaces.
DG417BDY 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:
- 1
- On-State Resistance (Max):
- 25Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 13V ~ 36V
- Voltage - Supply, Dual (V±):
- ±7V ~ 22V
- Switch Time (Ton, Toff) (Max):
- 89ns, 80ns
- -3db Bandwidth:
- -
- Charge Injection:
- 38pC
- Channel Capacitance (CS(off), CD(off)):
- 12pF, 12pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
DG417BDY FAQ
1.How can I place an order for DG417BDY through Aetrix?
Please submit a Request for Quotation (RFQ) for DG417BDY 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 DG417BDY reliable?
The price and inventory of DG417BDY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG417BDY is usually 5 days.
3.What payment methods are accepted for DG417BDY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG417BDY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG417BDY?
DG417BDY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG417BDY 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 DG417BDY?
For technical support, including DG417BDY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG417BDY requirements.
6.How does Aetrix verify that DG417BDY is sourced from the original manufacturer or authorized distributors?
All DG417BDY 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 DG417BDY meets industry standards.
7.What is the process for return or replacement of DG417BDY?
All DG417BDY units undergo pre-shipment inspection (PSI). If there is an issue with DG417BDY, 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 DG417BDY part is unused and in its original packaging.
Return procedure for DG417BDY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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