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Vishay Siliconix DG412DY-T1
- Part No.:
- DG412DY-T1
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG412DY-T1.pdf
- Description:
- IC SWITCH SPST-NOX4 35OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,715
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Product details
Overview
DG412DY-T1 from Vishay Siliconix is a precision monolithic quad SPST analog switch IC with break-before-make switching action, 25 Ω typical on-resistance (rDS(on)), 110 ns turn-on time (tON), and ±15 V analog signal range - used in precision data acquisition systems requiring low signal distortion and bidirectional conduction.
For engineers reviewing the DG412DY-T1 datasheet, DG412DY-T1 pinout, DG412DY-T1 application, or DG412DY-T1 equivalent, this device supports dual-supply (±15 V) and single-supply (up to 44 V) operation, TTL/CMOS-compatible digital control, and ultra-low power dissipation (0.35 W) - critical for battery-powered test equipment and portable instrumentation.
Technical Context
The DG412DY-T1 implements complementary MOS (CMOS) switch architecture with high-voltage silicon gate process, enabling 44 V supply rating and latchup immunity via epitaxial layer isolation. Each of its four independent SPST switches conducts equally in both directions when ON and blocks signals up to supply rails when OFF.
It uses inverted logic control versus DG411 (logic "0" = ON, logic "1" = OFF), with input thresholds defined at 0.8 V (low) and 2.4 V (high) under VL = 5 V. Switching performance is characterized across –40 °C to +85 °C and validated for 16-pin narrow SOIC package thermal derating (7.6 mW/°C above 75 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V - supports full-rail bipolar signal switching without clipping in precision instrumentation. |
| rDS(on) Typ. | 25 Ω - ensures minimal voltage drop and gain error in low-impedance signal paths. |
| tON / tOFF | 110 ns / 100 ns - enables high-speed multiplexing in automated test equipment sampling at >1 MHz. |
| Charge Injection | 5 pC - limits DC offset errors in sample-and-hold and integrator circuits. |
| Off Isolation (OIRR) | 68 dB - suppresses crosstalk between inactive channels in multi-channel DAQ systems. |
| Supply Voltage Max | 44 V - allows robust unipolar operation (e.g., 12 V, 24 V, 40 V) in industrial control interfaces. |
| Logic Compatibility | TTL/CMOS - simplifies interface to microcontrollers and FPGAs without level-shifting circuitry. |
Pinout & Package
Package: 16-pin narrow SOIC (width 3.9 mm), RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 | Digital control inputs | Inverted logic: low = switch ON; each controls corresponding S/D pair independently. |
| S1–S4 | Switch source terminals | Bidirectional analog current path entry points; connect to signal sources or common nodes. |
| D1–D4 | Switch drain terminals | Bidirectional analog current path exit points; route to ADC inputs, amplifiers, or filters. |
| V+ | Positive analog supply | Accepts +5 V to +44 V (unipolar) or +15 V (bipolar); powers analog channel core. |
| V− | Negative analog supply | Accepts –44 V to 0 V (unipolar) or –15 V (bipolar); required for true bipolar signal handling. |
| GND | Analog ground reference | Common return for V− and analog signal paths; separate from digital ground for noise isolation. |
| VL | Logic supply voltage | Accepts 2.0 V to V+ +0.3 V; sets input threshold levels; typically tied to 5 V or 3.3 V. |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Prevents momentary shorting between channels during state transitions - essential for safe multiplexer sequencing. |
| Ultra-low power dissipation | 0.35 W max - enables thermally constrained designs in handheld and embedded test instruments. |
| Wide dynamic signal range | ±15 V analog swing - preserves resolution and linearity in high-fidelity sensor signal conditioning. |
| Low charge injection (5 pC) | Minimizes settling errors in precision integrators and sample-and-hold stages with high-impedance loads. |
| High off-isolation (68 dB) | Reduces inter-channel interference in 16-channel DAQ modules operating at 100 kSPS. |
Applications
| Precision Data Acquisition | Automated Test Equipment |
|---|---|
Use Scenario: Multiplexing multiple sensor outputs (thermocouples, strain gauges) into a single high-resolution ADC. IC Role / Device Role / Timing Role: Quad SPST analog switch routing analog signals with sub-mV accuracy and <110 ns channel switching. Use Value: Maintains ±15 V signal integrity and <25 Ω on-resistance to avoid gain error and settling delay in 24-bit DAQ systems. |
Use Scenario: Signal path selection in benchtop multimeters and parametric analyzers with programmable front-end configuration. IC Role / Device Role / Timing Role: High-speed, low-distortion analog switching controlled by microcontroller GPIOs with TTL-level compatibility. Use Value: Enables <100 ns channel-to-channel switching with 68 dB off-isolation to prevent measurement crosstalk during auto-ranging. |
| Battery-Powered Instrumentation | Communication System Interfaces |
Use Scenario: Power-sensitive portable oscilloscopes and handheld spectrum analyzers requiring long battery life. IC Role / Device Role / Timing Role: Low-power analog routing block with 0.35 W total dissipation and rail-to-rail signal support. Use Value: Extends operational runtime while preserving ±15 V dynamic range and 5 pC charge injection for accurate waveform capture. |
Use Scenario: Analog signal conditioning in TDM-based telecommunication line cards and modem front-ends. IC Role / Device Role / Timing Role: Channel selection and signal path isolation in multi-line voice/data interface modules. Use Value: Delivers 85 dB channel-to-channel crosstalk suppression and 9 pF off-capacitance to maintain signal fidelity at 1 MHz baseband frequencies. |
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 |
|---|---|---|---|
| MAX4612ESE+ | Higher rDS(on) (60 Ω typ.), wider temp range (–40°C to +85°C), same 16-pin SOIC package. | Lower bandwidth due to higher on-resistance; less suitable for high-precision, low-gain-error paths. | Select when cost sensitivity outweighs on-resistance tolerance and charge injection requirements. |
| ADG412BRZ | Identical logic polarity (inverting), 24 Ω rDS(on), but lower supply rating (±16.5 V max) and no 44 V unipolar support. | Limited to ≤33 V unipolar use; unsuitable for 40 V industrial bus monitoring or high-voltage sensor interfaces. | Choose only if system operates strictly within ±15 V and requires ADI's enhanced ESD robustness (4 kV HBM). |
Compared with MAX4612ESE+ and ADG412BRZ, the DG412DY-T1 uniquely combines 44 V unipolar operation, 25 Ω rDS(on), and 5 pC charge injection - making it the preferred choice for portable, high-accuracy DAQ where supply flexibility and signal fidelity are co-critical.
Availability
DG412DY-T1 is available at Aetrix Electronics and suitable for precision data acquisition, automated test equipment, and battery-powered instrumentation requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for DG412DY-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 leadership in high-voltage, high-reliability switching solutions for industrial and military applications.
The DG412DY-T1 belongs to the DG411/412/413 family - designed specifically for precision analog signal routing in test and measurement systems where low distortion, fast settling, and rail-to-rail operation are mandatory.
FAQ
What is the logic polarity of DG412DY-T1 compared to DG411?
The DG412DY-T1 uses inverted logic control: a logic low (≤0.8 V) turns the switch ON, while a logic high (≥2.4 V) turns it OFF. This is the opposite of DG411, which activates on logic high. The DG412DY-T1 datasheet explicitly confirms this behavior in its truth table and is validated across –40°C to +85°C. Always verify control voltage levels against VL to ensure proper switching in your DG412DY-T1 design.
Can DG412DY-T1 operate from a single 12 V supply?
Yes, DG412DY-T1 supports single-supply operation from 5 V to 44 V. For 12 V use, tie V+ to +12 V, V− to GND, and VL to +5 V (or +12 V if logic levels permit). The device is fully characterized at 12 V per Vishay's S-52433 Rev. D, with rDS(on) ≤100 Ω and tON ≤400 ns over temperature. This makes DG412DY-T1 suitable for industrial PLC I/O modules and portable 12 V-powered scopes.
What is the maximum continuous current per switch terminal in DG412DY-T1?
The DG412DY-T1 specifies 30 mA continuous current per terminal (S or D), with 100 mA peak pulsed current (1 ms, 10% duty cycle). Exceeding 30 mA risks thermal overstress in the 16-pin narrow SOIC package, especially above 75°C where derating applies (7.6 mW/°C). These limits are confirmed in the Absolute Maximum Ratings table of the DG412DY-T1 datasheet and apply identically across all four switches.
Does DG412DY-T1 require external protection diodes for overvoltage on analog pins?
No - DG412DY-T1 integrates internal clamping diodes on all S and D pins. Signals exceeding V+ or V− are clamped, provided forward diode current stays within the 30 mA continuous or 100 mA pulsed limit. This eliminates need for external diodes in most ±15 V or 12 V applications, as verified in the DG412DY-T1 application notes and absolute maximum ratings section.
How does charge injection of DG412DY-T1 affect sample-and-hold circuit accuracy?
DG412DY-T1's 5 pC typical charge injection introduces ≤0.5 mV offset error in a 10 nF hold capacitor - directly calculable as ΔV = Q/C. This value is measured per Figure 4 in the DG412DY-T1 datasheet and remains stable across temperature. For sub-mV accuracy, pair DG412DY-T1 with a low-leakage op-amp and guard traces; the 5 pC spec makes it viable for 16-bit+ S/H designs without additional correction.
DG412DY-T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 5V ~ 44V
- Voltage - Supply, Dual (V±):
- ±5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 175ns, 145ns
- -3db Bandwidth:
- -
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 9pF, 9pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG412DY-T1 FAQ
1.How can I place an order for DG412DY-T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for DG412DY-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 DG412DY-T1 reliable?
The price and inventory of DG412DY-T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG412DY-T1 is usually 5 days.
3.What payment methods are accepted for DG412DY-T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG412DY-T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG412DY-T1?
DG412DY-T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG412DY-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 DG412DY-T1?
For technical support, including DG412DY-T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG412DY-T1 requirements.
6.How does Aetrix verify that DG412DY-T1 is sourced from the original manufacturer or authorized distributors?
All DG412DY-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 DG412DY-T1 meets industry standards.
7.What is the process for return or replacement of DG412DY-T1?
All DG412DY-T1 units undergo pre-shipment inspection (PSI). If there is an issue with DG412DY-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 DG412DY-T1 part is unused and in its original packaging.
Return procedure for DG412DY-T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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