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Vishay Siliconix DG9461DY-T1
- Part No.:
- DG9461DY-T1
- Manufacturer:
- Vishay Siliconix
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG9461DY-T1.pdf
- Description:
- IC SWITCH SPDT X 1 60OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,306
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Product details
Overview
DG9461DY-T1 from Vishay Siliconix is a low-voltage single-pole/double-throw (SPDT) CMOS analog switch in SOIC-8 package, featuring 40 Ω typical rDS(on) at 5 V, 35 ns turn-on time, and 20 ns turn-off time. It operates from +2.7 V to +5 V, supports bidirectional signal switching up to the supply rail, and guarantees break-before-make timing for reliable signal routing in portable instrumentation.
For engineers reviewing the DG9461DY-T1 datasheet, DG9461DY-T1 pinout, DG9461DY-T1 application, or DG9461DY-T1 equivalent, key selection criteria include on-resistance matching (±2 Ω), sub-100 pA channel-on leakage at 25 °C, charge injection of ≤2 pC, and guaranteed ESD protection >2000 V per Method 3015.7.
Technical Context
The DG9461DY-T1 implements a monolithic CMOS SPDT switch architecture built on Vishay's BCD-15 low-voltage process, with epitaxial layer latchup prevention. Its control logic accepts TTL/CMOS-compatible inputs (VIL ≤ 0.8 V, VIH ≥ 2.4 V) and drives complementary NO/NC paths with break-before-make timing (3–10 ns) verified across –40 °C to +85 °C.
Signal handling is symmetrical: COM conducts equally well to NO or NC when enabled, blocks analog signals up to V+ when off, and clamps overvoltage transients via internal diodes. All terminals support ±20 mA continuous current, with absolute maximum analog voltage range from –0.3 V to (V+ + 0.3 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| rDS(on) | 30 Ω typ @ 5 V - enables low insertion loss in audio and sensor signal paths |
| tON / tOFF | 35 ns / 20 ns @ 5 V - supports high-speed multiplexing in data acquisition systems |
| ICOM(on) | 200 pA max @ 25 °C - minimizes error in precision sample-and-hold and medical front-ends |
| QINJ | 2 pC max - reduces settling error in ADC input conditioning circuits |
| OIRR | –74 dB @ 1 MHz - ensures strong channel-to-channel isolation in RF test equipment |
| V+ Range | +2.7 V to +12 V - allows operation from single Li-ion cell or regulated 3.3 V/5 V rails |
| ESD Rating | >2000 V HBM (Method 3015.7) - supports robust handling in automated assembly lines |
Pinout & Package
Package: 8-pin narrow-body SOIC (SOIC-8), 150 mil width, RoHS-compliant (Pb-free terminations available as DG9461DY-T1-E3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Digital control input | Accepts TTL/CMOS logic; high = connect COM to NO, low = connect COM to NC |
| 2 (NO) | Normally-open switch terminal | Open-circuit when IN = low; connects to COM when IN = high |
| 3 (NC) | Normally-closed switch terminal | Connected to COM when IN = low; open when IN = high |
| 4 (GND) | Analog and digital ground reference | Common return path for power, logic, and signal currents; must be low-impedance |
| 5 (COM) | Common analog terminal | Bidirectional signal port; routes to NO or NC based on IN state |
| 6 (V+) | Positive supply rail | Powers analog switch core and level-shifter; supports 2.7–12 V operation |
| 7, 8 | No-connect (NC) | Internally unconnected; left floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make timing | Guaranteed 3–10 ns interval prevents momentary shorting between NO and NC paths |
| Low charge injection | ≤2 pC ensures minimal voltage glitch on sampled capacitors in precision ADC interfaces |
| Matched on-resistance | ΔrDS(on) ≤ 2 Ω enables accurate differential signal switching without gain mismatch |
| Full rail analog range | Supports 0 V to V+ signal swing - ideal for single-supply op-amp and comparator interfaces |
| High off-isolation | –74 dB at 1 MHz suppresses crosstalk in multi-channel communication test fixtures |
Applications
| Battery-Powered Test Equipment | Portable Medical Sensors |
|---|---|
Use Scenario: Multiplexing multiple sensor inputs into a shared ADC in handheld diagnostic devices. IC Role / Device Role / Timing Role: SPDT analog switch routing biopotential signals (ECG, EEG) while maintaining signal integrity and low noise floor. Use Value: 200 pA max ICOM(on) and 2 pC QINJ prevent baseline drift and sampling error in microvolt-level measurements. | Use Scenario: Signal path selection in wearable pulse oximeters with dual-wavelength LED drivers. IC Role / Device Role / Timing Role: High-speed analog switch enabling synchronized red/IR LED current path control and photodiode signal routing. Use Value: 35 ns tON and 20 ns tOFF allow precise timing alignment between LED drive pulses and photodiode sampling windows. |
| Cellular Baseband Signal Routing | Military Radio Front-End Switching |
Use Scenario: Selecting between antenna diversity paths or calibration loops in LTE/5G baseband IC test fixtures. IC Role / Device Role / Timing Role: Low-capacitance SPDT switch isolating RF IC test ports during automatic calibration sequences. Use Value: 7 pF C(off) and –74 dB OIRR minimize loading and crosstalk between adjacent RF signal chains. | Use Scenario: Configuring receive/transmit signal paths in ruggedized HF/VHF tactical radios operating across wide temperature ranges. IC Role / Device Role / Timing Role: Temperature-stable analog switch managing filter bank selection and LNA bypass in military-grade transceivers. Use Value: Guaranteed break-before-make and –40 °C to +85 °C operation ensure reliable path switching under extreme environmental stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617ESA+ | Higher rDS(on): 60 Ω typ @ 5 V; slower tON/tOFF: 60/30 ns; no guaranteed break-before-make | Lower isolation (–65 dB) and higher leakage limit (1 nA) reduce suitability for precision medical sensing | Preferred where cost sensitivity outweighs speed and leakage requirements |
| ADG719BRMZ | Lower rDS(on): 2.5 Ω typ @ 5 V; faster tON/tOFF: 12/8 ns; smaller 6-lead SOT-23 package | Higher supply current (1 µA vs. 0.1 µA) and no ESD rating >2000 V limit use in high-reliability field-deployed gear | Optimal for space-constrained, high-bandwidth applications where ultra-low on-resistance is critical |
Compared with MAX4617ESA+ and ADG719BRMZ, the DG9461DY-T1 delivers balanced performance: superior ESD robustness (>2000 V), guaranteed break-before-make, and leakage/charge injection specs optimized for battery-powered precision instruments - without requiring PCB redesign for SOIC-8 footprint compatibility.
Availability
DG9461DY-T1 is available at Aetrix Electronics and suitable for battery-operated systems, portable test equipment, and sample-and-hold circuits requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for DG9461DY-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, analog switches, and power management devices, with emphasis on reliability, precision, and high-volume manufacturability.
The DG9461 series was designed for portable, low-power analog signal routing - targeting applications where board space, battery life, and signal fidelity are constrained, such as handheld instrumentation and wireless communications infrastructure.
FAQ
What is the maximum analog signal voltage range supported by the DG9461DY-T1?
The DG9461DY-T1 supports analog signals from –0.3 V to (V+ + 0.3 V). When operated at V+ = 5 V, this allows full 0 V to 5 V rail-to-rail signal switching. Internal clamping diodes protect against overvoltage transients, but forward diode current must be limited to ±20 mA continuous per terminal to avoid damage. This range makes the DG9461DY-T1 suitable for single-supply sensor interfaces and mixed-signal systems without external level-shifting.
Does the DG9461DY-T1 require external pull-up or pull-down resistors on its IN pin?
No, the DG9461DY-T1 does not require external pull-up or pull-down resistors on the IN pin. Its digital input is TTL/CMOS-compatible with guaranteed switching thresholds: logic low ≤ 0.8 V and logic high ≥ 2.4 V over the full –40 °C to +85 °C temperature range. Input current remains below 1 µA across all conditions, allowing direct connection to microcontroller GPIOs or FPGA outputs without additional biasing components.
Is the DG9461DY-T1 pin-compatible with other variants in the DG9461 family?
Yes, the DG9461DY-T1 shares identical pinout and functionality with the TSOP-6 variant DG9461DV-T1, except that pins 7 and 8 are no-connect (NC) in SOIC-8 and unused in TSOP-6. Both variants implement the same SPDT switch architecture, truth table, and electrical specifications. Layout reuse is possible when migrating between packages, though thermal and parasitic differences must be validated for high-frequency applications.
What is the thermal derating behavior of the DG9461DY-T1 above 75 °C?
The DG9461DY-T1 requires thermal derating above 75 °C at 6.5 mW/°C. Its SOIC-8 package has a maximum power dissipation of 400 mW at 75 °C ambient. At 85 °C ambient, allowable power drops to 335 mW. This derating applies to total device power (I+ × V+ plus analog channel losses). Designers should verify junction temperature using θJA = 125 °C/W and ensure operation remains within –40 °C to +85 °C case temperature limits for long-term reliability.
How does the DG9461DY-T1 handle bidirectional analog signal flow?
The DG9461DY-T1 supports fully bidirectional analog conduction: COM, NO, and NC terminals function identically as source or drain depending on signal polarity and bias. When ON, each path exhibits matched rDS(on) and flatness (≤6 Ω variation from 1 V to 3 V), ensuring consistent gain and linearity regardless of signal direction. This enables flexible use in both transmit and receive signal chains - for example, routing microphone inputs or speaker outputs in full-duplex audio subsystems without polarity constraints.
DG9461DY-T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 60Ohm
- Channel-to-Channel Matching (ΔRon):
- 400mOhm
- Voltage - Supply, Single (V+):
- 2.7V ~ 5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 75ns, 50ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 7pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
DG9461DY-T1 FAQ
1.How can I place an order for DG9461DY-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG9461DY-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 DG9461DY-T1 reliable?
The price and inventory of DG9461DY-T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG9461DY-T1 is usually 5 days.
3.What payment methods are accepted for DG9461DY-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG9461DY-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG9461DY-T1?
DG9461DY-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG9461DY-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 DG9461DY-T1?
For technical support, including DG9461DY-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG9461DY-T1 requirements.
6.How does Aetrix verify that DG9461DY-T1 is sourced from the original manufacturer or authorized distributors?
All DG9461DY-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 DG9461DY-T1 meets industry standards.
7.What is the process for return or replacement of DG9461DY-T1?
All DG9461DY-T1 units undergo pre-shipment inspection (PSI). If there is an issue with DG9461DY-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 DG9461DY-T1 part is unused and in its original packaging.
Return procedure for DG9461DY-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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