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Vishay Siliconix DG308BDQ-T1-E3
- Part No.:
- DG308BDQ-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DG308BDQ-T1-E3.pdf
- Description:
- IC SW SPST-NOX4 85OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,416
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Product details
Overview
DG308BDQ-T1-E3 from Vishay Siliconix is a quad SPST normally-open analog switch IC designed for precision signal routing in ±15 V dual-supply or 12 V single-supply systems. It delivers 45 Ω typical on-resistance, <200 ns turn-on time, 1 pC charge injection, ±22 V analog signal range, and 20 pA drain-on leakage at 25 °C.
For engineers reviewing the DG308BDQ-T1-E3 datasheet, DG308BDQ-T1-E3 pinout, DG308BDQ-T1-E3 application, or DG308BDQ-T1-E3 equivalent, key selection criteria include bi-directional analog switching capability, low glitching in sample-and-hold circuits, RoHS-compliant TSSOP-16 packaging, and compatibility with CMOS logic levels (VIH ≥ 11 V, VIL ≤ 3.5 V).
Technical Context
The DG308BDQ-T1-E3 implements four independent, normally-open analog switches fabricated in Vishay's silicon-gate CMOS process. Each channel supports true bi-directional conduction when on and blocks signals to supply rails when off, with epitaxial layer latchup protection.
Its internal level-shifting drive circuit enables operation with standard CMOS logic inputs across full ±4 V to ±22 V supply ranges. Charge injection compensation minimizes transients during switching, critical for precision amplifier gain selection and sample-and-hold accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V (dual-supply) or 0–12 V (single-supply): supports full-rail analog signal routing without clipping |
| RDS(on) | 45 Ω typ. at ±15 V: ensures minimal signal attenuation and gain error in precision instrumentation paths |
| Charge Injection | 1 pC typ.: limits voltage step error in sample-and-hold capacitors to sub-mV levels |
| tON/tOFF | <200 ns / <150 ns: enables high-speed multiplexing in automated test equipment |
| ID(on) | 20 pA max. at ±14 V: preserves DC accuracy in high-impedance sensor interfaces |
| Off-Isolation (OIRR) | 90 dB at 100 kHz: suppresses crosstalk between adjacent channels in multi-channel data acquisition |
| Supply Range | ±4 V to ±22 V continuous: accommodates industrial ±15 V and telecom ±12 V rails |
Pinout & Package
Package: 16-lead TSSOP (JEDEC MO-153, Vishay Doc. #74417), 4.90 mm × 6.40 mm footprint, 0.65 mm pitch, RoHS-compliant matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 (IN1–IN4) | Digital control input | CMOS-compatible logic interface; VIH ≥ 11 V, VIL ≤ 3.5 V; drives internal level shifter |
| 5, 6, 12, 13 (S1–S4) | Source terminal | Bi-directional analog input/output node; connects to signal source in NO configuration |
| 7, 8, 11, 10 (D1–D4) | Drain terminal | Bi-directional analog input/output node; connects to load or next stage in NO configuration |
| 9 (GND) | Logic ground reference | Reference for digital input thresholds; isolated from analog power planes per layout guidelines |
| 14 (V−) | Negative supply rail | Bias for analog channel body and level-shifter; must be stable within ±2 V of V+ for full spec compliance |
| 15 (V+) | Positive supply rail | Primary analog and internal logic supply; powers switch core and drive circuitry |
| 16 (NC) | No-connect | Internally unconnected; must remain floating-no PCB trace or thermal pad connection |
Key Features
| Feature | Design Value |
|---|---|
| True bi-directional analog switching | Enables flexible signal path routing-same pin serves as input or output depending on system topology |
| Epitaxial latchup protection | Guarantees immunity to destructive latchup under overvoltage or ESD stress in industrial environments |
| Low 1 pC charge injection | Reduces hold-mode settling error to <1 mV in 1 nF sample capacitors, meeting 12-bit ADC requirements |
| ±22 V absolute max analog rating | Allows safe handling of transient overvoltages beyond normal ±15 V rails without external clamping |
| Extended temperature range (−40 °C to +85 °C) | Validated performance across industrial ambient conditions without derating or thermal management |
Applications
| Industrial Instrumentation | Test Equipment |
|---|---|
Use Scenario: Multiplexing multiple sensor inputs (thermocouples, RTDs) into a shared precision ADC front-end. IC Role / Device Role / Timing Role: Quad SPST analog switch routing conditioned analog signals while maintaining DC accuracy and low noise. Use Value: 45 Ω RDS(on) and 20 pA ID(on) prevent gain/offset drift; 1 pC charge injection avoids hold-step errors in 16-bit measurements. | Use Scenario: Automated test system switching between calibration references, DUT signals, and measurement instruments. IC Role / Device Role / Timing Role: High-speed, low-glitch analog multiplexer enabling sub-µs channel reconfiguration during test sequences. Use Value: <200 ns tON and 90 dB off-isolation ensure rapid, clean signal routing without cross-talk contamination between test steps. |
| Disk Drive Read/Write Channel | Portable Precision Instruments |
Use Scenario: Selecting between head preamplifier outputs and servo control feedback paths in HDD channel ICs. IC Role / Device Role / Timing Role: Bi-directional analog switch isolating sensitive analog paths during write operations to prevent interference. Use Value: ±22 V analog rating handles head actuator transients; epitaxial structure prevents latchup during mechanical shock events. | Use Scenario: Digitally programmable gain selection in handheld multimeters and portable oscilloscopes. IC Role / Device Role / Timing Role: Precision analog switch configuring feedback networks for op-amp gain stages. Use Value: Low RDS(on) matching (ΔRDS(on) ≤ 2 %) ensures consistent gain accuracy across all four gain settings. |
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 (2.7–12 V); 60 Ω RDS(on); no ±22 V rating | Limited to battery-powered, low-voltage systems; unsuitable for ±15 V industrial rails | Select when operating exclusively from 3.3 V or 5 V supplies and space-constrained SOIC-16 is acceptable |
| ADG1408YRUZ | 8-channel, 4.7 Ω RDS(on), 1.8–5.5 V logic compatible; requires external level shifter for ±15 V analog | Higher channel count but incompatible with direct CMOS logic drive in dual-supply configurations | Choose for high-density, low-RDS(on) designs where logic interface redesign is feasible |
Compared with DG308BDQ-T1-E3, MAX4617ESE+ lacks dual-supply support and ±22 V robustness, limiting use to low-voltage portable gear; ADG1408YRUZ offers lower resistance and more channels but demands additional level-shifting circuitry for industrial ±15 V signal chains.
Availability
DG308BDQ-T1-E3 is available at Aetrix Electronics and suitable for industrial instrumentation, automated test equipment, and disk drive read/write channel designs requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant TSSOP packaging.
Supply support for DG308BDQ-T1-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 components and analog ICs, with leadership in MOSFETs, diodes, optoelectronics, and precision analog switches.
The DG308B series belongs to Vishay's high-reliability analog switch product line, engineered specifically for industrial and test equipment applications demanding wide supply range, low leakage, and latchup immunity.
FAQ
What is the maximum analog signal voltage supported by DG308BDQ-T1-E3?
DG308BDQ-T1-E3 supports analog signals up to ±22 V relative to V− and V+, as specified in Absolute Maximum Ratings. In normal operation with ±15 V supplies, it reliably passes ±15 V signals with guaranteed RDS(on), leakage, and switching performance across −40 °C to +85 °C.
Does DG308BDQ-T1-E3 require external level shifting for TTL or CMOS logic inputs?
No. DG308BDQ-T1-E3 integrates an internal level-shifting driver that accepts standard CMOS logic levels directly: VIH ≥ 11 V and VIL ≤ 3.5 V with respect to GND. This eliminates need for external translators when interfacing with 12 V or 15 V logic families.
Can DG308BDQ-T1-E3 operate from a single 12 V supply?
Yes. DG308BDQ-T1-E3 supports single-supply operation from 4 V to 44 V (V+ = 12 V, V− = 0 V). In this mode, analog signal range is 0–12 V, RDS(on) increases to 90 Ω typ., and tON extends to 300 ns-fully documented in the "Single Supply" specification table.
What is the thermal derating behavior of DG308BDQ-T1-E3 above 75 °C?
DG308BDQ-T1-E3 (TSSOP package) derates linearly at 12 mW/°C above 75 °C, per Absolute Maximum Ratings. At 100 °C ambient, maximum allowable power dissipation drops to 340 mW (640 mW − [25 °C × 12 mW/°C]), requiring careful thermal design in sealed enclosures.
Is pin 16 (NC) allowed to be grounded or tied to V+ for thermal enhancement?
No. Pin 16 is internally unconnected (NC) and must remain electrically floating-no PCB trace, solder mask opening, or thermal pad connection is permitted. Connecting it risks internal damage or parametric shift, as confirmed in Vishay Document #74417 and datasheet Note b.
DG308BDQ-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
DG308BDQ-T1-E3 FAQ
1.How can I place an order for DG308BDQ-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG308BDQ-T1-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 DG308BDQ-T1-E3 reliable?
The price and inventory of DG308BDQ-T1-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG308BDQ-T1-E3 is usually 5 days.
3.What payment methods are accepted for DG308BDQ-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG308BDQ-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG308BDQ-T1-E3?
DG308BDQ-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG308BDQ-T1-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 DG308BDQ-T1-E3?
For technical support, including DG308BDQ-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG308BDQ-T1-E3 requirements.
6.How does Aetrix verify that DG308BDQ-T1-E3 is sourced from the original manufacturer or authorized distributors?
All DG308BDQ-T1-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 DG308BDQ-T1-E3 meets industry standards.
7.What is the process for return or replacement of DG308BDQ-T1-E3?
All DG308BDQ-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with DG308BDQ-T1-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 DG308BDQ-T1-E3 part is unused and in its original packaging.
Return procedure for DG308BDQ-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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