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Vishay Siliconix DG308BDJ-E3
- Part No.:
- DG308BDJ-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG308BDJ-E3.pdf
- Description:
- IC SWITCH SPST-NOX4 85OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:263
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Product details
Overview
DG308BDJ-E3 from Vishay Siliconix is a quad single-pole single-throw (SPST) normally open analog switch fabricated in silicon-gate CMOS technology, rated for ±22 V analog signal range, with 45 Ω typical on-resistance, <200 ns turn-on time, and 1 pC charge injection - used in precision instrumentation multiplexing and sample-and-hold circuits.
For engineers reviewing the DG308BDJ-E3 datasheet, DG308BDJ-E3 pinout, DG308BDJ-E3 application, or DG308BDJ-E3 equivalent, key selection criteria include bi-directional analog signal handling up to ±22 V, low leakage (<20 pA), RoHS-compliant 16-pin plastic DIP packaging, and compatibility with TTL/CMOS logic levels (VINH ≥11 V, VINL ≤3.5 V).
Technical Context
The DG308BDJ-E3 implements four independent SPST switches with true bi-directional conduction when on and blocking to supply rails when off. Its epitaxial layer prevents latchup, and internal charge injection compensation minimizes switching transients during analog signal routing.
It supports dual-supply operation (±4 V to ±22 V) or single-supply operation (4 V to 44 V), with digital control inputs compatible with standard TTL and CMOS logic families. Each channel exhibits matched on-resistance (ΔRDS(on) ≤2 %) and low off-isolation degradation over frequency (90 dB at 100 kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V (dual supply); enables full-range routing of industrial sensor signals without clipping |
| On-Resistance (RDS(on)) | 45 Ω typ. at ±15 V supplies; ensures minimal gain error and voltage drop in precision amplifier paths |
| Charge Injection (Q) | 1 pC typ.; limits voltage step error in sample-and-hold applications to sub-mV levels |
| Turn-On Time (tON) | <200 ns; supports high-speed data acquisition at >1 MHz sampling rates |
| Off-Leakage Current | ±20 pA max. at ±14 V; preserves accuracy in high-impedance sensor front-ends |
| Supply Voltage Range | ±4 V to ±22 V continuous; accommodates wide dynamic range in test equipment and process control |
| Logic Input Thresholds | VINH ≥11 V, VINL ≤3.5 V; ensures robust noise margin with 15 V logic systems |
Pinout & Package
Package: 16-pin plastic DIP (JEDEC MS-012), 0.300-inch wide body, through-hole mountable with 2.54 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 (IN1–IN4) | Digital control input | Active-high logic: logic "1" (≥11 V) closes corresponding switch; logic "0" (≤3.5 V) opens it |
| 5, 6, 12, 13 (S1–S4) | Source terminal | Bi-directional analog path input/output; connects to signal source or load depending on system topology |
| 7, 8, 11, 10 (D1–D4) | Drain terminal | Bi-directional analog path input/output; paired with Sx to form independent SPST switch channels |
| 9 (GND) | Ground reference | Logic ground reference; must be tied to system ground, not floating or isolated |
| 14 (V−) | Negative supply rail | Bias for analog channel operation; sets lower bound of supported analog signal swing |
| 15 (V+) | Positive supply rail | Bias for analog channel operation; sets upper bound of supported analog signal swing |
| 16 (NC) | No connect | Internally unconnected; must remain unconnected on PCB to avoid parasitic coupling |
Key Features
| Feature | Design Value |
|---|---|
| True bi-directional analog switching | Enables flexible signal routing in both directions without polarity constraints in multiplexer or matrix configurations |
| Epitaxial latchup protection | Guarantees immunity to destructive latchup under transient overvoltage or ESD stress in industrial environments |
| Low glitch energy (1 pC) | Reduces settling time and post-switching correction overhead in precision data acquisition systems |
| Extended temperature range (−40 °C to +85 °C) | Validated performance across commercial and industrial ambient conditions without derating |
| RoHS-compliant termination (E3 suffix) | Meets EU Directive 2011/65/EU with lead-free matte tin plating; suitable for green manufacturing programs |
Applications
| Industrial Instrumentation | Test Equipment |
|---|---|
Use Scenario: Multiplexing multiple thermocouple or RTD inputs into a single high-resolution ADC channel in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Quad SPST analog switch providing channel isolation and signal routing under microcontroller GPIO control. Use Value: Enables cost-effective 16-channel analog input using one DG308BDJ-E3 per 4-channel group, minimizing board space and component count while maintaining ±15 V signal integrity. | Use Scenario: Configurable signal path selection in automated test equipment (ATE) for routing calibration references, DUT outputs, or stimulus sources to measurement nodes. IC Role / Device Role / Timing Role: Precision analog switch managing low-distortion, low-leakage connections between instrument-grade signal sources and digitizers. Use Value: Delivers <200 ns switching with <20 pA leakage, ensuring measurement repeatability and reducing guard-band margins in production test sequences. |
| Disk Drive Electronics | Sample-and-Hold Circuits |
Use Scenario: Selecting between head-positioning servo feedback signals (e.g., position error signal, velocity signal) prior to conditioning and digitization in HDD servo control ASICs. IC Role / Device Role / Timing Role: High-voltage-tolerant analog switch isolating sensitive analog feedback loops from shared signal buses. Use Value: Supports ±22 V rating to handle transient spikes common in motor-driven actuator circuits without clamping or distortion. | Use Scenario: Capturing instantaneous analog values from sensor outputs before conversion in high-fidelity data loggers or oscilloscope front-ends. IC Role / Device Role / Timing Role: Low-charge-injection switch enabling accurate hold-phase voltage capture with minimal droop-induced error. Use Value: 1 pC charge injection limits aperture error to <1 mV with 1 nF hold capacitor, meeting 12-bit+ effective resolution requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617ESE+ | Single-supply only (2.7 V to 12 V); 60 Ω RDS(on); 2.5 pC charge injection | Limited to low-voltage portable instrumentation; unsuitable for ±15 V signal routing | Select when operating from 3.3 V/5 V rails and analog range ≤12 V; avoid for industrial bipolar signal paths |
| ADG1404BRUZ | 4-channel SPST, ±15 V rating; 4.7 Ω RDS(on); 0.25 pC charge injection; 16-lead TSSOP | Superior on-resistance and charge injection, but requires PCB redesign for surface-mount layout | Choose for highest precision where layout change is acceptable; DG308BDJ-E3 remains optimal for through-hole legacy designs requiring ±22 V tolerance |
Compared with MAX4617ESE+ and ADG1404BRUZ, the DG308BDJ-E3 uniquely balances ±22 V analog capability, through-hole DIP packaging, and 1 pC charge injection - making it the preferred choice for industrial multiplexers and legacy test equipment upgrades where high-voltage signal integrity and mechanical reliability are critical.
Availability
DG308BDJ-E3 is available at Aetrix Electronics and suitable for industrial instrumentation, automated test equipment, and disk drive electronics requiring stable component supply, long-term obsolescence management, and RoHS-compliant through-hole analog switches.
Supply support for DG308BDJ-E3 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 - with emphasis on high-reliability, high-voltage, and low-distortion performance.
The DG308B series belongs to Vishay's improved analog switch product line, designed specifically for industrial and test equipment applications demanding wide analog signal range, low leakage, and latchup immunity in harsh operating environments.
FAQ
What is the maximum analog signal voltage the DG308BDJ-E3 can switch?
The DG308BDJ-E3 supports analog signals from V− to V+, with absolute maximum ratings allowing ±22 V across V+ and V− terminals. Under normal operation with ±15 V supplies, it reliably switches signals within ±15 V - verified across −40 °C to +85 °C. Exceeding V+ or V− triggers internal clamping diodes, so external current limiting is required if analog inputs exceed supply rails.
Does the DG308BDJ-E3 require dual supplies to operate?
No - the DG308BDJ-E3 supports both dual-supply (±4 V to ±22 V) and single-supply (4 V to 44 V) configurations. In single-supply mode with V− = 0 V and V+ = 12 V, its analog signal range is 0 V to 12 V, and RDS(on) increases to 90 Ω typical. Logic thresholds remain unchanged: VINH ≥11 V and VINL ≤3.5 V ensure reliable switching regardless of supply topology.
How does the DG308BDJ-E3 differ from the older DG308A version?
The DG308BDJ-E3 delivers measurable improvements over the DG308A: 45 Ω vs. 60 Ω typical on-resistance, <200 ns vs. ~350 ns turn-on time, 1 pC vs. 3 pC charge injection, and 20 pA vs. 100 pA off-leakage. These enhancements stem from Vishay Siliconix' proprietary silicon-gate CMOS process and improved charge injection compensation - directly enabling higher accuracy and speed in precision analog routing applications.
Is the DG308BDJ-E3 pin-compatible with other packages in the DG308B family?
Yes - the DG308BDJ-E3 (16-pin plastic DIP), DG308BDY-E3 (16-pin SOIC), and DG308BDQ-E3 (16-pin TSSOP) share identical pinout and electrical specifications. Mechanical differences affect mounting and thermal performance only: DIP offers highest power dissipation (470 mW) and easiest prototyping; SOIC and TSSOP provide smaller footprints and better high-frequency behavior but require re-layout.
What is the purpose of the NC pin (Pin 16) on the DG308BDJ-E3?
Pin 16 is a no-connect (NC) terminal - internally unconnected and electrically isolated from all circuitry. It must remain unconnected on the PCB to prevent unintended coupling, parasitic capacitance, or solder bridging. Leaving Pin 16 floating is safe; tying it to ground or supply introduces risk of noise injection or layout-induced crosstalk, especially in high-precision analog signal paths.
DG308BDJ-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Last Time Buy
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 85Ohm
- Channel-to-Channel Matching (ΔRon):
- 1.7Ohm
- Voltage - Supply, Single (V+):
- 4V ~ 44V
- Voltage - Supply, Dual (V±):
- ±4V ~ 22V
- Switch Time (Ton, Toff) (Max):
- 200ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 5pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -95dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
DG308BDJ-E3 FAQ
1.How can I place an order for DG308BDJ-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG308BDJ-E3 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 DG308BDJ-E3 reliable?
The price and inventory of DG308BDJ-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG308BDJ-E3 is usually 5 days.
3.What payment methods are accepted for DG308BDJ-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG308BDJ-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG308BDJ-E3?
DG308BDJ-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG308BDJ-E3 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 DG308BDJ-E3?
For technical support, including DG308BDJ-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG308BDJ-E3 requirements.
6.How does Aetrix verify that DG308BDJ-E3 is sourced from the original manufacturer or authorized distributors?
All DG308BDJ-E3 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 DG308BDJ-E3 meets industry standards.
7.What is the process for return or replacement of DG308BDJ-E3?
All DG308BDJ-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG308BDJ-E3, 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 DG308BDJ-E3 part is unused and in its original packaging.
Return procedure for DG308BDJ-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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