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Vishay Siliconix DG271BCJ
- Part No.:
- DG271BCJ
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG271BCJ.pdf
- Description:
- IC SWITCH SPST-NCX4 50OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,928
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Product details
Overview
DG271BCJ from Vishay Siliconix is a high-speed quad SPST CMOS analog switch optimized for precision signal routing in ±15 V dual-supply systems. It delivers 32 Ω on-resistance, 55 ns turn-on time, 5 pC charge injection, and 50 pA off-leakage - enabling low-glitch sample/hold and op-amp gain switching in automated test equipment.
For engineers reviewing the DG271BCJ datasheet, DG271BCJ pinout, DG271BCJ application, or DG271BCJ equivalent, key selection criteria include guaranteed rDS(on) ≤ 75 Ω over temperature, SOIC-16 vs. DIP-16 package compatibility, RoHS-compliant matte tin terminations (-E3 suffix), and TTL/CMOS logic-level control with ±15 V analog signal range.
Technical Context
The DG271BCJ integrates four independent bidirectional analog switches fabricated using Vishay's high-voltage silicon gate process, each supporting symmetrical conduction and blocking up to ±15 V. Its internal regulator improves start-up behavior versus the DG271 baseline.
Logic inputs accept TTL/CMOS thresholds (≤0.8 V low, ≥2.4 V high); analog channels clamp signals exceeding V+/V− via integrated diodes, with forward current limited to 20 mA per terminal. An epitaxial layer prevents latchup under transient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V - supports rail-to-rail signal switching without external clamping circuitry |
| rDS(on) | 32 Ω typical at ±15 V - ensures minimal gain error and distortion in precision amplifier paths |
| tON / tOFF | 55 ns / 50 ns - enables sub-10 MHz sampling in high-speed data acquisition systems |
| Charge Injection | 5 pC - reduces settling error in sample/hold circuits with 1 nF hold capacitors |
| Off-Leakage (IS(off)) | ±0.05 nA max - maintains accuracy in high-impedance sensor front-ends over temperature |
| Supply Current (I+/I−) | 7.5 mA / −8 mA - defines power budget for multi-channel switching in embedded instrumentation |
Pinout & Package
Package: 16-pin plastic DIP (JEDEC MS-012), lead (Pb)-free matte tin terminations (–E3 suffix), operating temperature range 0 °C to 70 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 15, 16 (IN1–IN4) | Digital control input | TTL/CMOS-compatible logic enables direct microcontroller interface without level-shifting |
| 3, 4, 13, 14 (D1–D4) | Analog drain (switch output) | Bidirectional node - connects to load, filter, or next-stage amplifier |
| 5, 6, 11, 12 (S1–S4) | Analog source (switch input) | Bidirectional node - accepts signal source, sensor, or reference voltage |
| 7 (V−) | Negative supply rail | Supports dual-supply operation down to −15 V; clamps negative transients |
| 8 (GND) | Ground reference | Common return for logic and analog sections; requires low-impedance PCB connection |
| 9 (NC) | No connect | Internally unconnected - must remain floating or tied to GND per layout guidelines |
| 10 (V+) | Positive supply rail | Supports dual-supply operation up to +15 V; clamps positive transients |
Key Features
| Feature | Design Value |
|---|---|
| Redesigned internal regulator | Improves startup timing consistency versus DG271 - critical for synchronized multi-channel switching |
| Epitaxial latchup protection | Enables robust operation in noisy industrial environments with fast supply ramping |
| Low 8 pF off-capacitance (CD(off)/CS(off)) | Minimizes crosstalk and feedthrough in dense mixed-signal PCB layouts |
| Off-isolation (OIRR) | 85 dB at 100 kHz - suppresses interference between adjacent switched channels |
| RoHS-compliant matte tin terminations | Eliminates Pb-based solder compatibility concerns and meets global environmental compliance mandates |
Applications
| High-Speed Data Acquisition | Programmable Gain Amplifier |
|---|---|
Use Scenario: Multiplexing multiple sensor inputs into a single ADC channel at >1 MSPS rates. IC Role / Device Role / Timing Role: Quad SPST switch routes analog signals with <55 ns channel enable/disable timing and <5 pC charge injection. Use Value: Enables accurate sampling of fast transients without hold capacitor corruption or gain step errors. | Use Scenario: Dynamically selecting feedback resistor values in op-amp configurations to achieve discrete gain steps. IC Role / Device Role / Timing Role: Low rDS(on) (32 Ω) and low leakage (<0.05 nA) preserve closed-loop accuracy across gain ranges. Use Value: Maintains DC precision and bandwidth integrity while avoiding manual reconfiguration or relay wear-out. |
| Automated Test Equipment (ATE) | Flight Control Signal Conditioning |
Use Scenario: Routing calibration references, DUT outputs, and stimulus signals within modular ATE backplanes. IC Role / Device Role / Timing Role: Four independent switches provide compact, low-crosstalk signal path selection with 85 dB off-isolation. Use Value: Reduces test system noise floor and eliminates cross-channel measurement contamination during parallel testing. | Use Scenario: Isolating redundant analog sensor signals (e.g., gyros, accelerometers) before voting logic in avionics subsystems. IC Role / Device Role / Timing Role: Bidirectional conduction and ±15 V blocking capability support MIL-STD-704 compliant power domains. Use Value: Ensures fail-safe signal routing with latchup immunity and guaranteed leakage performance over −40 °C to +85 °C extended range variants. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617CPE+ | Higher rDS(on) (60 Ω typ), slower tON (80 ns), same DIP-16 package | Lower bandwidth suitability; less ideal for >5 MHz sample/hold | Select when cost sensitivity outweighs speed/precision requirements |
| ADG465BRZ | Single-channel, SOIC-8 package, lower charge injection (0.5 pC), but no DIP option | Requires four devices and additional board area for quad functionality | Prefer for new designs prioritizing ultra-low glitch in space-constrained layouts |
Compared with MAX4617CPE+ and ADG465BRZ, the DG271BCJ uniquely combines quad integration in a through-hole DIP-16 package, ±15 V analog range, and sub-60 ns switching - making it optimal for legacy ATE upgrades and repair where footprint and supply compatibility are fixed constraints.
Availability
DG271BCJ is available at Aetrix Electronics and suitable for automated test equipment, flight control systems, and high-speed data acquisition requiring stable component supply and long-term obsolescence management.
Supply support for DG271BCJ 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-performance components for industrial and aerospace applications.
The DG271B family was designed specifically for high-fidelity analog signal routing in dual-supply instrumentation, where low on-resistance, minimal charge injection, and guaranteed off-isolation are mandatory for metrology-grade accuracy.
FAQ
What is the maximum analog signal voltage range supported by the DG271BCJ?
The DG271BCJ 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, and forward current must be limited to 20 mA per terminal. This range is specified and tested per the Absolute Maximum Ratings table in the DG271BCJ datasheet.
Does the DG271BCJ require external pull-up or pull-down resistors on its digital inputs?
No, the DG271BCJ does not require external pull-up or pull-down resistors. Its digital inputs are TTL/CMOS compatible with defined thresholds: logic low ≤ 0.8 V and logic high ≥ 2.4 V. Input current remains below ±1 µA across temperature, allowing direct connection to microcontrollers or FPGAs without biasing components.
Is the DG271BCJ pin-compatible with earlier DG271 variants?
Yes, the DG271BCJ is pin-compatible with the base DG271 and DG271BDY variants. All share identical 16-pin DIP/SOIC pinouts, functional block diagram, and truth table. The DG271BCJ differs only in temperature grade (0 °C to 70 °C) and packaging (plastic DIP with –E3 RoHS terminations), not pin function or electrical interface.
What is the thermal derating specification for the DG271BCJ in plastic DIP package?
The DG271BCJ in 16-pin plastic DIP has a thermal derating of 6.5 mW/°C above 75 °C. Its maximum power dissipation is 470 mW at 25 °C ambient, decreasing linearly beyond 75 °C. This derating ensures safe operation under sustained load in enclosed industrial enclosures without forced airflow.
Can the DG271BCJ be used with single-supply operation?
The DG271BCJ is specified and characterized for dual-supply operation (V+ and V−), but can operate with single-supply configurations where V− = GND. In such cases, the analog signal range becomes 0 V to V+, and performance parameters like rDS(on) and leakage remain valid - though off-isolation and crosstalk may degrade slightly versus symmetric dual-rail use.
DG271BCJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Bulk
- 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:
- Through Hole
- Supplier Device Package:
- 16-PDIP
DG271BCJ FAQ
1.How can I place an order for DG271BCJ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG271BCJ 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 DG271BCJ reliable?
The price and inventory of DG271BCJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG271BCJ is usually 5 days.
3.What payment methods are accepted for DG271BCJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG271BCJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG271BCJ?
DG271BCJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG271BCJ 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 DG271BCJ?
For technical support, including DG271BCJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG271BCJ requirements.
6.How does Aetrix verify that DG271BCJ is sourced from the original manufacturer or authorized distributors?
All DG271BCJ 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 DG271BCJ meets industry standards.
7.What is the process for return or replacement of DG271BCJ?
All DG271BCJ units undergo pre-shipment inspection (PSI). If there is an issue with DG271BCJ, 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 DG271BCJ part is unused and in its original packaging.
Return procedure for DG271BCJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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