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Vishay Siliconix DG418BDJ
- Part No.:
- DG418BDJ
- Manufacturer:
- Vishay Siliconix
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
DG418BDJ.pdf
- Description:
- IC SWITCH SPST-NO X 1 25OHM 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,532
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Product details
Overview
DG418BDJ from Vishay Siliconix is a precision monolithic SPST CMOS analog switch optimized for bidirectional signal routing in high-accuracy instrumentation and portable systems. It features ±15 V analog signal range, 15 Ω typical on-resistance, 110 ns turn-on time, TTL/CMOS-compatible control logic, and operates across –40 °C to +85 °C. It serves as an ON/OFF gate for analog signals in sample-and-hold circuits and battery-powered test equipment.
For engineers reviewing the DG418BDJ datasheet, DG418BDJ pinout, DG418BDJ application, or DG418BDJ equivalent, this page delivers verified electrical parameters, MiniDIP-8 package details, switching timing behavior under dual-supply conditions, and validated alternative parts for precision analog switching designs requiring low leakage and low distortion.
Technical Context
The DG418BDJ implements a single-pole single-throw (SPST) switch architecture with complementary control logic relative to DG417B - logic "0" enables conduction, logic "1" disables. It uses Vishay's high-voltage silicon gate (HVSG) process to achieve ±15 V signal handling and latchup immunity via epitaxial isolation.
Its channel exhibits symmetrical conduction (no polarity dependence), supports rail-to-rail analog voltage swing up to supply limits, and guarantees sub-0.25 nA off-state leakage at full temperature range. Charge injection is specified at 38 pC, critical for minimizing settling error in precision sampling applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V - supports full-swing bipolar signals without clipping in dual-supply systems |
| On-Resistance (RDS(on)) | 15 Ω typ. - ensures minimal signal attenuation and gain error in precision gain paths |
| Turn-On Time (tON) | 110 ns max. - enables fast multiplexing in data acquisition systems up to ~1 MHz effective rate |
| Off-Leakage Current | ±0.25 nA max. - preserves accuracy in high-impedance sensor interfaces and integrator hold phases |
| Charge Injection | 38 pC - defines minimum hold capacitor size needed to limit voltage glitch in sample-and-hold stages |
| Supply Voltage Range | V+ = 20 V, V− = −20 V - allows operation with overvoltage margin beyond ±15 V signal rails |
| Logic Compatibility | TTL and CMOS - simplifies interface to microcontrollers and FPGA I/O without level-shifting circuitry |
Pinout & Package
DG418BDJ is housed in an 8-pin Plastic MiniDIP (Dual-In-Line) package, 0.300" wide, with through-hole mounting and standard DIP lead pitch (0.100"). Pin 1 is marked by notch or dot; leads are tin-lead (non-RoHS) unless suffixed -E3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Digital control input | Active-low enable: logic "0" ≤ 0.8 V turns switch ON; logic "1" ≥ 2.4 V turns OFF |
| 2 (S) | Source terminal | Bidirectional analog port - connects to signal source or load depending on system topology |
| 3 (D) | Drain terminal | Bidirectional analog port - completes signal path when switch is ON; blocks up to V+/V− when OFF |
| 4 (V−) | Negative supply rail | Required for dual-supply operation; sets lower bound of analog signal range |
| 5 (GND) | Ground reference | Logic ground and substrate reference; must be tied to system common ground |
| 6 (V+) | Positive supply rail | Required for dual-supply operation; sets upper bound of analog signal range |
| 7 (VL) | Logic supply voltage | Accepts 5 V TTL/CMOS levels; independent of analog supply rails |
| 8 (NC) | No connect | Internally unconnected; must remain floating - no external tie required |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog switching | Supports signals from V− to V+ without distortion or clipping, enabling full dynamic range utilization |
| Low on-resistance flatness | ≤2 Ω variation over ±10 V signal range - maintains consistent gain and linearity across input span |
| Break-before-make not applicable | DG418BDJ is SPST (not SPDT); eliminates timing-critical overlap concerns present in DG419B |
| Epitaxial latchup protection | Guarantees immunity to destructive latchup under transient overvoltage or ESD stress |
| Low power consumption | Typical supply current <1 µA - extends battery life in portable instrumentation and handheld testers |
Applications
| Precision Test Equipment | Precision Instrumentation |
|---|---|
Use Scenario: Automated test system multiplexing multiple sensor inputs into a shared ADC channel. IC Role / Device Role / Timing Role: Analog signal gate controlling sequential connection of thermocouple, RTD, and strain gauge outputs to measurement front-end. Use Value: 15 Ω RDS(on) and ±0.25 nA leakage preserve measurement accuracy across 24-bit resolution systems. | Use Scenario: Programmable gain amplifier (PGA) input stage requiring calibrated signal routing. IC Role / Device Role / Timing Role: Precision analog switch selecting between reference voltages or calibration sources before PGA input. Use Value: 38 pC charge injection limits hold-step error to <1 LSB in 16-bit systems using 10 nF hold capacitors. |
| Battery-Powered Systems | Sample-and-Hold Circuits |
Use Scenario: Portable multimeter with auto-ranging analog front-end and low-power sleep mode. IC Role / Device Role / Timing Role: Low-leakage signal path selector enabling zero-current standby while preserving input integrity. Use Value: Sub-µA supply current and <0.25 nA off-leakage extend shelf life and reduce self-discharge in Li-ion powered units. | Use Scenario: High-speed data acquisition module capturing transient waveforms with minimal aperture jitter. IC Role / Device Role / Timing Role: Fast-switching gate isolating hold capacitor during sampling phase transitions. Use Value: 110 ns tON/80 ns tOFF enables ≤100 ns aperture window control for 10 MSPS equivalent sampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617ESA+ | Higher RDS(on) (35 Ω typ.), wider supply range (±20 V), but higher charge injection (60 pC) | Less suitable for sub-16-bit sample-and-hold; better for high-voltage industrial I/O conditioning | Select MAX4617ESA+ only if extended supply tolerance outweighs precision sampling requirements |
| ADG1419BRMZ | Lower RDS(on) (1.3 Ω typ.), but requires 3.3 V logic supply and lacks VL pin independence | Requires redesign of logic interface; unsuitable for mixed 5 V logic / ±15 V analog systems | Choose ADG1419BRMZ only when ultra-low on-resistance is mandatory and supply architecture permits |
Compared with DG418BDJ, MAX4617ESA+ trades precision for ruggedness, while ADG1419BRMZ delivers lower resistance at the cost of logic supply inflexibility - DG418BDJ remains optimal for legacy 5 V logic-controlled, ±15 V analog systems needing balanced performance.
Availability
DG418BDJ 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 DG418BDJ 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 components and analog ICs, with leadership in high-reliability MOSFETs, diodes, optoelectronics, and precision analog switches.
DG418BDJ belongs to the DG41xB family of monolithic CMOS analog switches engineered for high-accuracy signal routing in military, aerospace, and industrial test environments where low leakage, low distortion, and supply flexibility are critical.
FAQ
What is the maximum analog signal voltage supported by DG418BDJ?
DG418BDJ supports analog signals from V− to V+, with absolute maximum ratings of –20 V to +20 V. Under normal operation with ±15 V supplies, it handles rail-to-rail signals up to ±15 V - confirmed in the "Analog Signal Range" specification (–15 V to +15 V, min/max) across full temperature range.
Does DG418BDJ require separate logic and analog ground connections?
No. DG418BDJ uses a single GND pin (Pin 5) serving as both logic reference and substrate ground. The VL pin (Pin 7) accepts 5 V logic levels independently, but shares ground with analog supplies - no isolated ground plane is required per datasheet layout guidance.
Is DG418BDJ pin-compatible with DG417BDJ?
Yes. DG418BDJ and DG417BDJ share identical MiniDIP-8 pinout and package dimensions. They differ only in control logic polarity: DG417BDJ enables with logic "1", while DG418BDJ enables with logic "0". No PCB change is needed for functional substitution if logic inversion is accommodated.
What is the thermal derating behavior of DG418BDJ in MiniDIP package?
DG418BDJ in MiniDIP package has a power dissipation limit of 400 mW at ≤75 °C ambient. Above 75 °C, it must be derated at 5.3 mW/°C - meaning maximum allowable power drops to 347 mW at 85 °C ambient, as specified in Absolute Maximum Ratings table footnote c.
Can DG418BDJ operate from a single 12 V supply?
Yes. DG418BDJ supports unipolar operation: V+ = 12 V, V− = 0 V, VL = 5 V. In this configuration, analog signal range is 0 V to 12 V, RDS(on) rises to 26 Ω typ., and tON increases to 100 ns - all verified in the "Specifications" table under V+ = 12 V, V− = 0 V conditions.
DG418BDJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
DG418BDJ FAQ
1.How can I place an order for DG418BDJ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG418BDJ 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 DG418BDJ reliable?
The price and inventory of DG418BDJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG418BDJ is usually 5 days.
3.What payment methods are accepted for DG418BDJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG418BDJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG418BDJ?
DG418BDJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG418BDJ 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 DG418BDJ?
For technical support, including DG418BDJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG418BDJ requirements.
6.How does Aetrix verify that DG418BDJ is sourced from the original manufacturer or authorized distributors?
All DG418BDJ 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 DG418BDJ meets industry standards.
7.What is the process for return or replacement of DG418BDJ?
All DG418BDJ units undergo pre-shipment inspection (PSI). If there is an issue with DG418BDJ, 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 DG418BDJ part is unused and in its original packaging.
Return procedure for DG418BDJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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