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Vishay Siliconix DG412DJ
- Part No.:
- DG412DJ
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG412DJ.pdf
- Description:
- IC SWITCH SPST-NOX4 35OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,349
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Product details
Overview
DG412DJ from Vishay Siliconix is a precision monolithic quad SPST CMOS analog switch with break-before-make action, 25 Ω on-resistance at ±15 V supplies, 110 ns turn-on time, and ±15 V analog signal range - used in precision data acquisition systems requiring low distortion and high channel isolation.
For engineers reviewing the DG412DJ datasheet, DG412DJ pinout, DG412DJ application, or DG412DJ equivalent, key selection considerations include its complementary logic control (vs. DG411), 16-pin narrow SOIC package, –40°C to +85°C operating range, and compatibility with ±15 V dual or +12 V single-supply operation.
Technical Context
The DG412DJ implements four independent bidirectional analog switches fabricated on a high-voltage silicon-gate process with epitaxial latchup protection. Each switch exhibits symmetrical conduction (no source/drain distinction) and blocks signals up to the supply rails when off.
It uses complementary logic control: logic low (≤0.8 V) enables all switches, while logic high (≥2.4 V) disables them - opposite to DG411. The VL pin accepts 3 V to 15 V logic supply, decoupling digital interface voltage from analog supply levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V (supports full-rail input/output swing with ±15 V supplies) |
| rDS(on) | 25 Ω typical (ensures minimal signal attenuation and gain error in precision signal paths) |
| tON / tOFF | 110 ns / 100 ns (enables high-speed multiplexing in sampling systems up to ~1 MHz) |
| Off Isolation (OIRR) | 68 dB at 1 MHz (reduces crosstalk between inactive and active channels) |
| Charge Injection | 5 pC (minimizes settling error and offset drift in sample-and-hold or integrator circuits) |
| Supply Voltage Range | ±5 V to ±22 V dual or +5 V to +44 V single (supports wide industrial and test equipment supply architectures) |
| Logic Supply (VL) | 3 V to 15 V (allows direct interfacing with TTL, CMOS, or microcontroller I/O without level shifters) |
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 | Active-low enables: logic 0 turns corresponding switch ON; logic 1 turns it OFF |
| S1–S4 | Switch source terminals | Bidirectional analog ports - interchangeable with drain terminals when switch is ON |
| D1–D4 | Switch drain terminals | Bidirectional analog ports - interchangeable with source terminals when switch is ON |
| V+ | Positive analog supply | Accepts up to +44 V; sets upper analog signal limit and powers internal circuitry |
| V− | Negative analog supply | Accepts down to –44 V; sets lower analog signal limit and powers internal circuitry |
| GND | Analog ground reference | Return path for analog signals; must be low-impedance and separated from noisy digital ground |
| VL | Logic supply input | Defines logic threshold; independent of V+/V−, enabling mixed-voltage system interfacing |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Prevents momentary shorting between channels during state transitions - critical for multiplexer safety in high-precision measurement |
| Ultra-low charge injection (5 pC) | Reduces output voltage step errors in sample-and-hold and integrating ADC front-ends |
| 25 Ω rDS(on) with flatness over signal range | Minimizes gain nonlinearity and THD in audio and instrumentation signal paths |
| 68 dB off-isolation at 1 MHz | Enables >12-bit crosstalk-free channel separation in multi-channel DAQ systems |
| Single- or dual-supply operation | Supports +12 V unipolar (V− = GND, V+ = VL) or ±15 V bipolar configurations without external modification |
Applications
| Precision Data Acquisition | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: Multiplexing multiple sensor outputs (e.g., thermocouples, strain gauges) into a single high-resolution ADC. IC Role / Device Role / Timing Role: Quad SPST analog switch providing channel selection with <5 pC charge injection and ±15 V signal handling. Use Value: Maintains DC accuracy and low THD across all channels without calibration drift due to switch nonlinearities. | Use Scenario: Routing calibrated reference voltages and DUT signals within a modular ATE backplane. IC Role / Device Role / Timing Role: Precision analog switch enabling fast (<110 ns), glitch-free signal path reconfiguration under microcontroller control. Use Value: Ensures test repeatability by eliminating cross-coupling (68 dB isolation) and minimizing settling errors in <1 µs windows. |
| Medical Instrumentation | Industrial Process Monitoring |
Use Scenario: Selecting ECG/EEG electrode inputs in a multi-lead patient monitor with isolated front-end amplifiers. IC Role / Device Role / Timing Role: Bidirectional, rail-to-rail analog switch supporting ±13.5 V signal swing and meeting IEC 60601 creepage requirements via high off-isolation. Use Value: Preserves microvolt-level signal integrity and avoids baseline shifts caused by charge injection in low-noise amplifiers. | Use Scenario: Scanning 4–20 mA current loop transmitters and RTD bridges in a PLC analog input module. IC Role / Device Role / Timing Role: Robust quad switch rated for ±22 V supplies and 30 mA continuous current per terminal. Use Value: Enables hot-swap-safe channel reconfiguration without damaging downstream signal conditioning circuitry. |
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 |
|---|---|---|---|
| ADG412BRZ | 44 V max supply, 27 Ω rDS(on), 100 ns tON, but requires VL = V+ for logic interface | Lacks independent VL pin - limits flexibility in mixed-voltage systems | Select when board already uses V+ as logic supply and ±15 V operation is primary requirement |
| MAX4612ESE+ | 35 Ω rDS(on), 120 ns tON, 20 V max supply, no VL pin, CMOS-only logic | Lower voltage rating and no independent logic supply restricts use in high-dynamic-range test gear | Choose for cost-sensitive industrial controls where ±12 V operation suffices and layout space is constrained |
Compared with ADG412BRZ and MAX4612ESE+, the DG412DJ provides superior design flexibility through its independent VL pin, tighter rDS(on) matching across channels, and higher off-isolation - making it preferred for metrology-grade multiplexing where signal fidelity and supply decoupling are critical.
Availability
DG412DJ is available at Aetrix Electronics and suitable for precision data acquisition, automated test equipment, and medical instrumentation requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for DG412DJ 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, analog switches, power ICs, and passive components, with emphasis on high-reliability and high-performance analog solutions.
The DG412DJ belongs to the DG411/412/413 family - designed specifically for precision analog signal routing in test, measurement, and industrial control systems where low on-resistance, low charge injection, and high off-isolation are mandatory.
FAQ
What is the logic polarity of DG412DJ compared to DG411DJ?
The DG412DJ uses active-low logic control: INx = logic low (≤0.8 V) turns the corresponding switch ON, while INx = logic high (≥2.4 V) turns it OFF. This is the inverse of DG411DJ, which is active-high. Both share identical analog specifications, so only control logic wiring differs - no changes to V+, V−, S/D, or VL connections are needed when swapping between them.
Can DG412DJ operate from a single +12 V supply?
Yes, DG412DJ supports single-supply operation: tie V− to GND, V+ to +12 V, and VL to +5 V (or +12 V). Analog signal range becomes 0 V to +12 V. The device is fully characterized at +12 V, with rDS(on) ≤100 Ω and tON ≤400 ns across –40°C to +85°C - confirmed in the Vishay S-52433 Rev. D datasheet, page 4-4.
What is the maximum continuous current per switch terminal of DG412DJ?
The DG412DJ specifies 30 mA continuous current per any terminal (S or D), with peak pulsed current up to 100 mA (1 ms, 10% duty cycle). Exceeding 30 mA risks thermal overstress or parametric shift; derating is required above +75°C ambient per the 7.6 mW/°C SOIC power dissipation curve on page 4-3 of the datasheet.
Does DG412DJ require external clamping diodes for overvoltage protection?
No - DG412DJ integrates internal clamp diodes on all S, D, and IN pins. Signals exceeding V+ or V− are clamped, provided forward diode current stays within the 30 mA continuous or 100 mA pulsed limits. External diodes are unnecessary unless transient energy exceeds internal diode capability - verified in the Absolute Maximum Ratings table (page 4-2).
How does the VL pin affect logic threshold behavior in DG412DJ?
The VL pin sets the logic threshold: VIN low ≤0.3 × VL and VIN high ≥0.7 × VL (with min/max bounds of 0.8 V and 2.4 V). This allows direct interfacing with 3.3 V, 5 V, or 12 V logic without level shifters. For example, with VL = 3.3 V, valid logic low is ≤1.0 V and logic high is ≥2.3 V - confirmed in the Input Switching Threshold vs. Supply Voltage plot (page 4-5).
DG412DJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- 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:
- Through Hole
- Supplier Device Package:
- 16-PDIP
DG412DJ FAQ
1.How can I place an order for DG412DJ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG412DJ 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 DG412DJ reliable?
The price and inventory of DG412DJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG412DJ is usually 5 days.
3.What payment methods are accepted for DG412DJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG412DJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG412DJ?
DG412DJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG412DJ 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 DG412DJ?
For technical support, including DG412DJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG412DJ requirements.
6.How does Aetrix verify that DG412DJ is sourced from the original manufacturer or authorized distributors?
All DG412DJ 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 DG412DJ meets industry standards.
7.What is the process for return or replacement of DG412DJ?
All DG412DJ units undergo pre-shipment inspection (PSI). If there is an issue with DG412DJ, 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 DG412DJ part is unused and in its original packaging.
Return procedure for DG412DJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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