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Vishay Siliconix DG271BDY-T1
- Part No.:
- DG271BDY-T1
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG271BDY-T1.pdf
- Description:
- IC SWITCH SPST-NCX4 50OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,880
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Product details
Overview
DG271BDY-T1 from Vishay Siliconix is a high-speed quad SPST CMOS analog switch designed for precision signal routing in bipolar supply systems. It delivers 32 Ω typical rDS(on), 55 ns turn-on time, 5 pC charge injection, ±15 V analog signal range, and operates across –40 °C to +85 °C - enabling use in op amp gain switching and automatic test equipment.
For engineers reviewing the DG271BDY-T1 datasheet, DG271BDY-T1 pinout, DG271BDY-T1 application, or DG271BDY-T1 equivalent, key selection criteria include guaranteed off-isolation (85 dB), low leakage (±0.05 nA max), SOIC-16 package compatibility, and TTL/CMOS logic interface support at dual supplies.
Technical Context
The DG271BDY-T1 integrates four independent bidirectional SPST switches fabricated on Vishay's high-voltage silicon gate process, each supporting symmetrical conduction and blocking up to ±15 V. Its internal regulator improves start-up behavior over the DG271 baseline, and an epitaxial layer prevents latchup under transient conditions.
Logic control uses standard TTL/CMOS thresholds (VINH ≥ 2.4 V, VINL ≤ 0.8 V) with sub-1 µA input current across temperature. Switching performance is characterized with 1 kΩ load and 1 nF capacitive load, delivering matched tON/tOFF (55/50 ns typ) and <8 pF off-capacitance per channel.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| rDS(on) | 32 Ω typical - ensures minimal signal attenuation and distortion in precision analog paths |
| tON/tOFF | 55 ns / 50 ns typical - enables reliable operation in >10 MHz sample/hold and digital filter clocking |
| Charge injection | 5 pC typical - reduces voltage glitches at switch transitions for stable DAC/ADC interfacing |
| Off-isolation (OIRR) | 85 dB at 100 kHz - maintains channel separation in multi-channel communication systems |
| Analog signal range | ±15 V - supports full-rail operation with dual ±15 V op amp rails without clamping |
| Supply current (I+/I−) | 7.5 mA / −8 mA typical - defines power budget for 4-channel active biasing in portable ATE |
| Leakage (IS(off)) | ±0.05 nA max - preserves accuracy in high-impedance sample/hold and chopper amplifier inputs |
Pinout & Package
Package: 16-pin narrow SOIC (JEDEC MS-012, body width 3.9 mm, pitch 1.27 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 (IN1–IN4) | Digital control input | TTL/CMOS-compatible logic enables individual channel activation with <1 µA drive requirement |
| 5, 6, 13, 14 (S1–S4) | Source terminal | Bidirectional analog path - connects to signal source or load depending on system topology |
| 7, 8, 11, 12 (D1–D4) | Drain terminal | Bidirectional analog path - interchangeable with source; no intrinsic directionality |
| 9 (GND) | Ground reference | Logic ground return; isolated from analog signal paths but tied to substrate for ESD protection |
| 10 (NC) | No connect | Internally unconnected - must remain floating or grounded per PCB layout guidelines |
| 15, 16 (V+, V−) | Analog supply rails | Support symmetric ±15 V operation; regulate internal level shifters and driver stages |
Key Features
| Feature | Design Value |
|---|---|
| Redesigned internal regulator | Improves start-up timing consistency vs. DG271, reducing initialization delay in automated test sequences |
| Epitaxial latchup prevention | Enables robust operation under transient overvoltage or fast-rising edge conditions without destructive failure |
| Low off-capacitance (8 pF) | Minimizes crosstalk and signal coupling between adjacent channels in dense PCB layouts |
| Pb-free matte tin terminations (-E3) | Meets RoHS compliance without SnPb reflow profile compromise; compatible with standard lead-free assembly |
| Matched switching times | 55 ns tON / 50 ns tOFF symmetry ensures predictable timing windows in synchronous sampling applications |
Applications
| Op Amp Gain Switching | Digital Filters |
|---|---|
Use Scenario: Programmable gain amplifiers in data acquisition systems require rapid, glitch-free resistor network reconfiguration. IC Role / Device Role / Timing Role: DG271BDY-T1 acts as a low-rDS(on), low-charge-injection analog switch bank selecting feedback resistors. Use Value: 32 Ω rDS(on) and 5 pC charge injection preserve gain accuracy and minimize settling transients during switching. | Use Scenario: Switched-capacitor filters demand precise, repeatable capacitor array connection timing. IC Role / Device Role / Timing Role: DG271BDY-T1 provides synchronized SPST control of capacitor nodes in clock-driven filter topologies. Use Value: Matched 55 ns tON/50 ns tOFF and <8 pF off-capacitance maintain filter pole stability across channels. |
| Automatic Test Equipment | Flight Control Systems |
Use Scenario: High-throughput ATE platforms route stimulus and measurement signals among DUT pins under microsecond timing constraints. IC Role / Device Role / Timing Role: DG271BDY-T1 serves as a multiplexing front-end switch for analog stimulus/sense paths. Use Value: ±15 V analog range and 85 dB off-isolation ensure signal integrity across multiple DUTs without cross-talk degradation. | Use Scenario: Redundant sensor signal conditioning in avionics requires fail-safe analog path selection with minimal drift. IC Role / Device Role / Timing Role: DG271BDY-T1 implements voting logic and backup channel switching in flight control analog interfaces. Use Value: –40 °C to +85 °C operation, ±0.05 nA leakage, and latchup immunity meet DO-160 environmental and reliability requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617ESE+ | Higher rDS(on) (60 Ω typ), single-supply only (up to 12 V), no negative rail support | Not suitable for ±15 V op amp gain switching; limited to unipolar signal chains | Select when cost sensitivity outweighs bipolar rail need and leakage <1 nA is acceptable |
| ADG465BRUZ | Lower charge injection (0.5 pC), but slower tON (120 ns), higher rDS(on) (45 Ω), same SOIC-16 package | Better for ultra-low-glitch sample/hold; unsuitable for >5 MHz switching or high-speed ATE | Prefer when charge injection dominates design concern and speed is secondary |
Compared with MAX4617ESE+ and ADG465BRUZ, the DG271BDY-T1 uniquely balances ±15 V operation, 55 ns speed, and 5 pC charge injection in a RoHS-compliant SOIC-16 - making it optimal for high-fidelity, bipolar-signal routing where timing, linearity, and rail flexibility are jointly critical.
Availability
DG271BDY-T1 is available at Aetrix Electronics and suitable for automatic test equipment, flight control systems, op amp gain switching, and digital filter implementations requiring stable component supply across industrial temperature ranges.
Supply support for DG271BDY-T1 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 emphasis on power management, sensing, and signal-path solutions.
The DG271BDY-T1 belongs to Vishay's high-speed analog switch product line, engineered for precision instrumentation, aerospace, and automated test systems demanding low distortion, fast settling, and bipolar supply compatibility.
FAQ
What is the operating temperature range for the DG271BDY-T1?
The DG271BDY-T1 is rated for operation from –40 °C to +85 °C. This extended industrial temperature range is confirmed in the Vishay ordering information table for the "DY" suffix variant and validated across all electrical specifications in the datasheet's "C, D Suffix" columns. The DG271BDY-T1 maintains specified rDS(on), leakage, and switching times across this full range, making it suitable for harsh-environment applications like flight control systems and outdoor test equipment.
Does the DG271BDY-T1 support dual-supply operation?
Yes, the DG271BDY-T1 is explicitly designed for dual-supply operation with V+ and V− pins accepting independent positive and negative rails. The datasheet specifies an analog signal range of ±15 V and absolute maximum ratings of V+ to V− = 44 V, confirming robust bipolar functionality. This allows direct interfacing with ±15 V op amps and precision analog circuits without level-shifting circuitry - a core capability distinguishing DG271BDY-T1 from single-supply alternatives.
Is the DG271BDY-T1 RoHS compliant?
Yes, the DG271BDY-T1 is RoHS compliant and features 100 % matte tin device terminations, indicated by the "-E3" suffix in its full ordering part number DG271BDY-T1-E3. Vishay explicitly states that the "-E3" designation identifies Pb-free RoHS-compliant analog switching products, and the datasheet confirms RoHS compliance with exemption notes applicable to legacy exemptions only. No lead-containing terminations are used in this variant.
What is the maximum analog signal voltage the DG271BDY-T1 can handle?
The DG271BDY-T1 supports an analog signal range of ±15 V, meaning signals on S or D terminals may swing from –15 V to +15 V relative to GND when V+ = +15 V and V− = –15 V. Absolute maximum ratings allow V+ to V− up to 44 V, but the guaranteed linear operating range remains ±15 V per the "Analog Signal Range" specification. Exceeding ±15 V risks clamping by internal diodes and is not supported for precision operation.
How many independent switches does the DG271BDY-T1 contain?
The DG271BDY-T1 contains four independent single-pole single-throw (SPST) analog switches. This is confirmed by the functional block diagram, pin configuration (IN1–IN4, S1–S4, D1–D4), truth table, and product description stating "high-speed quad monolithic SPST CMOS analog switch." Each switch operates bidirectionally with matched on-resistance and timing characteristics, enabling parallel signal routing in multi-channel systems.
DG271BDY-T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 50Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±15V
- Switch Time (Ton, Toff) (Max):
- 65ns, 65ns
- -3db Bandwidth:
- -
- Charge Injection:
- -5pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -100dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG271BDY-T1 FAQ
1.How can I place an order for DG271BDY-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG271BDY-T1 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 DG271BDY-T1 reliable?
The price and inventory of DG271BDY-T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG271BDY-T1 is usually 5 days.
3.What payment methods are accepted for DG271BDY-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG271BDY-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG271BDY-T1?
DG271BDY-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG271BDY-T1 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 DG271BDY-T1?
For technical support, including DG271BDY-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG271BDY-T1 requirements.
6.How does Aetrix verify that DG271BDY-T1 is sourced from the original manufacturer or authorized distributors?
All DG271BDY-T1 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 DG271BDY-T1 meets industry standards.
7.What is the process for return or replacement of DG271BDY-T1?
All DG271BDY-T1 units undergo pre-shipment inspection (PSI). If there is an issue with DG271BDY-T1, 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 DG271BDY-T1 part is unused and in its original packaging.
Return procedure for DG271BDY-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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