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Vishay Siliconix DG201BDJ
- Part No.:
- DG201BDJ
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG201BDJ.pdf
- Description:
- IC SWITCH SPST-NCX4 85OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,042
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Product details
Overview
DG201BDJ from Vishay Siliconix is a quad normally closed (NC) CMOS analog switch in 16-pin plastic DIP package, rated for ±22 V supply, with 45 Ω on-resistance, 120 ns turn-on time, and 20 pA off-leakage - used in precision sample-and-hold circuits and digitally programmable filter designs.
For engineers reviewing the DG201BDJ datasheet, DG201BDJ pinout, DG201BDJ application, or DG201BDJ equivalent, this page delivers verified specifications, functional pin mapping, real-world use cases in instrumentation and test equipment, and validated alternative parts for design continuity.
Technical Context
The DG201BDJ implements four independent single-pole single-throw (SPST) switches with normally closed logic behavior: logic low enables conduction, logic high disables it. Each channel supports true bi-directional analog signal flow up to ±22 V with no latch-up risk due to epitaxial layer isolation.
Its charge injection is minimized to 1 pC (dual-supply) or 4 pC (single-supply), and off-isolation exceeds 90 dB at 100 kHz - enabling low-distortion signal routing in precision acquisition systems where transient suppression and channel crosstalk avoidance are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±4.5 V to ±22 V dual supply; +4.5 V to +25 V single supply - supports wide analog input range without level-shifting. |
| On-Resistance | 45 Ω typical (±15 V), max 100 Ω - ensures minimal gain error and signal attenuation in precision analog paths. |
| Turn-On Time | 120 ns typical - enables fast multiplexing in data acquisition and automated test equipment. |
| Off-Leakage Current | ±20 pA max at ±14 V - preserves accuracy in high-impedance sample-and-hold and sensor front-ends. |
| Charge Injection | 1 pC (dual-supply), 4 pC (single-supply) - limits voltage step errors during switching in capacitor-based hold circuits. |
| Off Isolation | 90 dB at 100 kHz - suppresses crosstalk between active and inactive channels in multi-channel systems. |
| Logic Compatibility | TTL/CMOS: VINH ≥ 2.4 V, VINL ≤ 0.8 V - simplifies interface with microcontrollers and FPGA I/O without level translation. |
Pinout & Package
Package: 16-pin plastic DIP (JEDEC MS-012), 0.300" wide body, 0.100" lead pitch, operating temperature range –40 °C to +85 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Digital control inputs | Active-low logic: low = ON (closed) for DG201BDJ; drives internal CMOS gate stack. |
| S1–S4 | Source terminals | Analog inputs/outputs; bi-directional, support ±22 V signals when switch is ON. |
| D1–D4 | Drain terminals | Analog inputs/outputs; matched impedance and leakage to Sx pins; isolated from supply rails when OFF. |
| V+ | Positive supply rail | Bias for P-channel MOSFETs; must be ≥ |V–| for proper operation and full ±22 V analog swing. |
| V– | Negative supply rail | Bias for N-channel MOSFETs; sets lower bound of analog signal range and enables bipolar operation. |
| GND | Logic ground reference | Reference for digital input thresholds (0.8 V / 2.4 V); separate from analog signal return path. |
| NC | No connect | Pin 9 is internally unconnected; must remain floating or grounded per layout best practice. |
Key Features
| Feature | Design Value |
|---|---|
| Normally closed (NC) topology | Ensures default signal path continuity during power-up or logic fault - critical for fail-safe instrumentation interfaces. |
| Epitaxial latch-up protection | Prevents destructive parasitic SCR activation under overvoltage or ESD stress - enhances reliability in industrial environments. |
| Low glitch energy (1 pC) | Reduces aperture error in sample-and-hold stages, enabling sub-12-bit accuracy without external correction. |
| Bi-directional analog conduction | Supports signal routing in either direction without polarity constraints - simplifies PCB layout in mixed-signal signal chains. |
| RoHS-compliant (Pb-free) | Meets EU Directive 2002/95/EC; compatible with lead-free reflow profiles and environmental compliance programs. |
Applications
| Industrial Instrumentation | Test Equipment |
|---|---|
Use Scenario: Multiplexing sensor outputs (thermocouples, strain gauges) into a shared ADC front-end with minimal offset drift. IC Role / Device Role / Timing Role: Quad SPST NC switch routing analog signals while maintaining DC continuity during configuration changes. Use Value: 45 Ω RDS(on) and ±20 pA leakage preserve measurement integrity across 16-bit dynamic range without calibration overhead. | Use Scenario: Automated switching of calibration references and DUT connections in benchtop multimeters and signal analyzers. IC Role / Device Role / Timing Role: Precision analog path selector with 120 ns tON enabling <10 µs channel settling for high-throughput test sequences. Use Value: 90 dB off-isolation prevents cross-talk between reference and measurement paths, ensuring traceable metrology-grade accuracy. |
| Disk Drive Electronics | Portable Instruments |
Use Scenario: Selecting head preamplifier gain stages and servo loop feedback paths in HDD read/write channel ICs. IC Role / Device Role / Timing Role: Low-glitch (1 pC) analog switch managing bias and signal routing in high-speed servo control loops. Use Value: Charge injection below 1 pC minimizes position error signal (PES) disturbance during track-following transitions. | Use Scenario: Configuring gain and filter response in handheld oscilloscopes and portable spectrum analyzers with battery-powered supplies. IC Role / Device Role / Timing Role: Dual-supply analog switch enabling ±15 V signal handling while drawing only 100 µA quiescent current. Use Value: Single-supply operation down to +4.5 V extends runtime in Li-ion powered instruments without sacrificing analog range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG201A (Analog Devices) | Same quad NC SPST function, but higher RDS(on) (60 Ω typ), slower tON (175 ns), and narrower supply range (±15 V). | Less suitable for ±22 V signal routing or ultra-low-leakage sample-and-hold; acceptable for legacy industrial designs. | Select ADG201A only if footprint compatibility and existing qualification outweigh performance trade-offs. |
| MAX4617 (Maxim Integrated) | Quad NC SPST with 35 Ω RDS(on), but limited to ±15 V supply and no specified charge injection value. | Preferred where lower on-resistance is critical, but not for high-voltage or low-glitch applications requiring <1 pC injection. | Choose MAX4617 for cost-sensitive, medium-precision applications where ±15 V operation suffices. |
Compared with ADG201A and MAX4617, DG201BDJ delivers superior high-voltage capability (±22 V), lowest charge injection (1 pC), and tighter leakage (±20 pA), making it optimal for next-generation precision instrumentation and test systems demanding extended analog range and minimal switching artifacts.
Availability
DG201BDJ is available at Aetrix Electronics and suitable for industrial instrumentation, automated test equipment, and disk drive electronics requiring stable component supply across long production lifecycles.
Supply support for DG201BDJ 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 leader in discrete semiconductors and passive components, specializing in high-reliability analog solutions for industrial, automotive, and computing markets.
The DG201B series belongs to Vishay's precision analog switch product line, engineered specifically for low-distortion, high-voltage signal routing in test, measurement, and data acquisition systems.
FAQ
What is the maximum analog signal voltage supported by DG201BDJ?
DG201BDJ supports analog signals up to ±22 V when operated within its absolute maximum supply ratings (V+ to V− ≤ 44 V). This allows full-rail signal handling across industrial sensor ranges and legacy test equipment interfaces without external clamping or attenuation.
Is DG201BDJ pin-compatible with the older DG201A?
Yes, DG201BDJ is pin-compatible with DG201A and shares identical 16-pin DIP pinout and logic behavior. However, DG201BDJ improves on-resistance (45 Ω vs. 60 Ω), leakage (±20 pA vs. ±50 pA), and switching speed (120 ns vs. 175 ns), enabling direct drop-in replacement in most legacy designs.
Does DG201BDJ require dual supplies, or can it operate from a single supply?
DG201BDJ supports both dual-supply (±4.5 V to ±22 V) and single-supply (+4.5 V to +25 V) operation. In single-supply mode, the analog signal range is 0 V to V+, enabling use in battery-powered portable instruments without negative rail generation.
What is the significance of "normally closed" in DG201BDJ's function?
"Normally closed" means DG201BDJ's analog path is conductive (ON) when the digital input is logic low (≤0.8 V). This fail-safe behavior maintains signal continuity during power loss or controller reset - essential for safety-critical instrumentation and process control interfaces.
How does DG201BDJ prevent latch-up in high-voltage applications?
DG201BDJ incorporates an epitaxial layer in its silicon gate CMOS process that suppresses parasitic SCR formation. This eliminates latch-up risk even under transient overvoltage conditions up to ±22 V, ensuring robust operation in noisy industrial environments without external protection circuitry.
DG201BDJ 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):
- 85Ohm
- Channel-to-Channel Matching (ΔRon):
- 2Ohm
- Voltage - Supply, Single (V+):
- 4.5V ~ 25V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 22V
- Switch Time (Ton, Toff) (Max):
- 300ns, 200ns
- -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
DG201BDJ FAQ
1.How can I place an order for DG201BDJ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG201BDJ 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 DG201BDJ reliable?
The price and inventory of DG201BDJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG201BDJ is usually 5 days.
3.What payment methods are accepted for DG201BDJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG201BDJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG201BDJ?
DG201BDJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG201BDJ 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 DG201BDJ?
For technical support, including DG201BDJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG201BDJ requirements.
6.How does Aetrix verify that DG201BDJ is sourced from the original manufacturer or authorized distributors?
All DG201BDJ 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 DG201BDJ meets industry standards.
7.What is the process for return or replacement of DG201BDJ?
All DG201BDJ units undergo pre-shipment inspection (PSI). If there is an issue with DG201BDJ, 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 DG201BDJ part is unused and in its original packaging.
Return procedure for DG201BDJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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