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Vishay Siliconix DG201BDY-T1
- Part No.:
- DG201BDY-T1
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG201BDY-T1.pdf
- Description:
- IC SWITCH SPST-NCX4 85OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,769
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Product details
Overview
DG201BDY-T1 from Vishay Siliconix is a quad normally closed (NC) CMOS analog switch in 16-pin narrow SOIC package, rated for ±22 V dual-supply operation, with 45 Ω on-resistance, 120 ns turn-on time, and 1 pC charge injection. It serves as a precision signal routing device in sample-and-hold circuits, programmable filters, and instrumentation front-ends where low glitching and high off-isolation are critical.
For engineers reviewing the DG201BDY-T1 datasheet, DG201BDY-T1 pinout, DG201BDY-T1 application, or DG201BDY-T1 equivalent, key selection criteria include its ±22 V analog signal range, bi-directional conduction, guaranteed 30 mA continuous current per channel, and compatibility with TTL/CMOS logic levels across –40 °C to +85 °C.
Technical Context
The DG201BDY-T1 implements four independent single-pole single-throw (SPST) switches with normally closed topology, fabricated using Vishay's silicon gate CMOS process to achieve lower RDS(on), reduced leakage, and faster switching versus legacy DG201A. Each channel supports true bi-directional analog signal flow when on and blocks signals beyond supply rails when off.
An epitaxial layer prevents latch-up; improved charge injection compensation minimizes transients during switching. The device operates from single supplies (+4.5 V to +25 V) or split supplies (±4.5 V to ±22 V), with input thresholds fixed at ≤0.8 V (logic low) and ≥2.4 V (logic high).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±4.5 V to ±22 V dual supply; enables ±15 V analog signal handling without clipping |
| RDS(on) | 45 Ω typical at ±15 V; ensures minimal signal attenuation and gain error in precision paths |
| tON/tOFF | 120 ns / 65 ns typical; supports sampling rates up to ~5 MHz in hold-mode transitions |
| Charge Injection | 1 pC typical; limits voltage step error in sample-and-hold capacitors to <1 mV for 1 nF hold cap |
| Off Isolation (OIRR) | 90 dB at 100 kHz; suppresses crosstalk between active and inactive channels in multi-channel systems |
| ID(off)/IS(off) | ±5 nA max at ±14 V; maintains accuracy in high-impedance sensor interfaces and integrator circuits |
| Logic Compatibility | TTL/CMOS inputs (0.8 V / 2.4 V thresholds); eliminates need for level-shifting in mixed-signal MCU interfaces |
Pinout & Package
Package: 16-pin narrow SOIC (JEDEC MS-012), 10.0 mm × 4.0 mm × 1.75 mm body, 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4 (IN1–IN4) | Digital control inputs | Active-low logic: logic 0 = channel ON (NC configuration); drives internal gate drivers |
| 5, 6, 12, 13 (S1–S4) | Source terminals | Bi-directional analog I/O nodes; connect to signal sources or loads in NC topology |
| 7, 8, 11, 10 (D1–D4) | Drain terminals | Bi-directional analog I/O nodes; tied internally to Sx when INx = 0; isolated when INx = 1 |
| 9 (V−) | Negative supply rail | Bias reference for NMOS portion; must be ≤ V+ − 44 V and ≥ −25 V relative to GND |
| 14 (V+) | Positive supply rail | Bias reference for PMOS portion; must be ≤ +25 V (single supply) or ≤ +22 V (dual supply) |
| 15 (GND) | Ground reference | Logic and substrate reference; decoupling required within 10 mm of V+/V− pins |
| 16 (NC) | No-connect | Internally unconnected; must remain floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Normally closed (NC) topology | Ensures fail-safe signal continuity during power loss or logic fault-critical in safety-critical monitoring paths |
| ±22 V analog signal range | Supports industrial ±10 V and ±15 V signal standards without external clamping or attenuation |
| Low 1 pC charge injection | Reduces aperture error in sample-and-hold stages, enabling <12-bit linearity without trimming |
| True bi-directional conduction | Allows use in both source-to-drain and drain-to-source signal paths-simplifies PCB routing in bidirectional buses |
| Latch-up immunity | Epitaxial isolation prevents destructive latch-up under overvoltage or ESD stress per JEDEC JESD78 |
Applications
| Sample-and-Hold Circuits | Programmable Filter Networks |
|---|---|
Use Scenario: Capturing fast transient waveforms in automated test equipment with sub-microsecond aperture time. IC Role / Device Role / Timing Role: DG201BDY-T1 acts as the precision hold switch, isolating the sampling capacitor during acquisition and holding phase with minimal charge kickback. Use Value: 1 pC charge injection and 90 dB off-isolation ensure <5 mV sample-to-hold offset and <5 mV/s droop rate in 1 µF hold networks. | Use Scenario: Digitally selecting cutoff frequencies in anti-aliasing or reconstruction filters for data acquisition systems. IC Role / Device Role / Timing Role: DG201BDY-T1 configures RC time constants by switching discrete capacitor banks into op-amp feedback paths. Use Value: 45 Ω RDS(on) introduces <0.1% gain error in 10 kΩ feedback networks, preserving filter Q-factor and passband flatness. |
| Precision Instrumentation Front-Ends | Industrial Sensor Multiplexing |
Use Scenario: Routing multiple low-level sensor outputs (e.g., thermocouples, strain gauges) to a shared ADC in PLC modules. IC Role / Device Role / Timing Role: DG201BDY-T1 provides channel-selectable, low-leakage (<5 nA) signal path isolation before programmable-gain amplification. Use Value: ±22 V rating accommodates sensor excitation voltages and common-mode offsets while maintaining >100 dB CMRR. | Use Scenario: Scanning 16-channel RTD or thermistor arrays in building automation controllers with minimal self-heating. IC Role / Device Role / Timing Role: DG201BDY-T1 sequentially connects individual sensor elements to a constant-current source and measurement amplifier. Use Value: 30 mA continuous current rating supports 1 mA excitation per RTD; low RDS(on) avoids voltage drop-induced measurement drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617ESE+ | Quad SPST NO switch; 60 Ω RDS(on); 100 ns tON; requires external VREF for ±15 V operation | Not NC topology; unsuitable for fail-safe hold paths requiring default closure | Select when normally open behavior and tighter timing specs are prioritized over default continuity |
| ADG1419BRUZ | Quad SPST NC switch; 5.5 Ω RDS(on); 150 ns tON; ±15 V rating only; higher supply current (200 µA) | Lower on-resistance but narrower voltage range; not rated for ±22 V operation | Select when ultra-low RDS(on) dominates design requirements and ±22 V margin is unnecessary |
Compared with MAX4617ESE+ and ADG1419BRUZ, DG201BDY-T1 uniquely combines NC topology, ±22 V rating, and 1 pC charge injection-making it optimal for high-voltage sample-and-hold and industrial multiplexing where default closure and wide dynamic range are mandatory.
Availability
DG201BDY-T1 is available at Aetrix Electronics and suitable for industrial instrumentation, automated test equipment, and programmable filter designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for DG201BDY-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 MOSFETs, diodes, optoelectronics, and analog switches, with emphasis on high-reliability, high-performance components for industrial and automotive markets.
The DG201B series belongs to Vishay's precision analog switch product line, engineered specifically for demanding signal routing applications in test & measurement, process control, and data acquisition where low distortion, high voltage tolerance, and robust latch-up immunity are essential.
FAQ
What is the maximum analog signal voltage supported by DG201BDY-T1?
DG201BDY-T1 supports analog signals from V− − 2 V to V+ + 2 V, with absolute maximum supply ratings of ±22 V. When operated at ±15 V supplies, it reliably handles ±15 V analog signals without clamping or distortion, as confirmed in the specification table under Analog Signal Range (VANALOG = ±15 V).
Is DG201BDY-T1 pin-compatible with the older DG201A?
Yes, DG201BDY-T1 is a direct functional and pin-compatible upgrade to DG201A in the same SOIC-16 package. It improves on-resistance (45 Ω vs. 60 Ω), leakage (±5 nA vs. ±20 nA), switching speed (120 ns vs. 150 ns), and charge injection (1 pC vs. 5 pC), while retaining identical pinout and logic behavior.
Can DG201BDY-T1 operate from a single +12 V supply?
Yes, DG201BDY-T1 supports single-supply operation from +4.5 V to +25 V. At +12 V, it delivers an analog signal range of 0 V to +12 V, with RDS(on) rising to 90 Ω typical and tON remaining at 120 ns-enabling use in battery-powered portable instruments and embedded controllers without negative rails.
What is the thermal derating behavior of DG201BDY-T1 above 75 °C?
DG201BDY-T1 has a thermal derating factor of 7.6 mW/°C above 75 °C for its 640 mW maximum power dissipation in narrow SOIC package. This means usable power drops linearly: at 100 °C ambient, max dissipation is 640 mW − (25 °C × 7.6 mW/°C) = 450 mW, requiring careful layout and copper pour for thermal management in high-temp environments.
Does DG201BDY-T1 require external protection diodes for overvoltage on analog pins?
No, DG201BDY-T1 integrates internal clamp diodes between each analog pin (Sx/Dx) and V+/V−. Signals exceeding V+ or falling below V− are clamped, provided forward diode current remains ≤30 mA. External current limiting resistors are recommended if transient overvoltages exceed ±2 V beyond rails to prevent latch-up or damage.
DG201BDY-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):
- 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:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG201BDY-T1 FAQ
1.How can I place an order for DG201BDY-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG201BDY-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 DG201BDY-T1 reliable?
The price and inventory of DG201BDY-T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG201BDY-T1 is usually 5 days.
3.What payment methods are accepted for DG201BDY-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG201BDY-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG201BDY-T1?
DG201BDY-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG201BDY-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 DG201BDY-T1?
For technical support, including DG201BDY-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG201BDY-T1 requirements.
6.How does Aetrix verify that DG201BDY-T1 is sourced from the original manufacturer or authorized distributors?
All DG201BDY-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 DG201BDY-T1 meets industry standards.
7.What is the process for return or replacement of DG201BDY-T1?
All DG201BDY-T1 units undergo pre-shipment inspection (PSI). If there is an issue with DG201BDY-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 DG201BDY-T1 part is unused and in its original packaging.
Return procedure for DG201BDY-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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