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Vishay Siliconix DG405DJ
- Part No.:
- DG405DJ
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG405DJ.pdf
- Description:
- IC SWITCH DPST-NOX2 45OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,269
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Product details
Overview
DG405DJ from Vishay Siliconix is a dual SPDT CMOS analog switch IC designed for precision signal routing in ±15 V analog systems, featuring 30 Ω typical on-resistance, 75 ns turn-on time, and 40 pA channel on-leakage - deployed in stereo audio source selection and dual-slope integrators requiring break-before-make switching.
For engineers reviewing the DG405DJ datasheet, DG405DJ pinout, DG405DJ application, or DG405DJ equivalent, key selection criteria include guaranteed break-before-make timing, ±15 V analog signal range compatibility, low charge injection (60 pC), RoHS-compliant 16-pin plastic DIP packaging, and TTL/CMOS logic interface support.
Technical Context
The DG405DJ implements two independent SPDT analog switches with break-before-make operation ensured by internal logic sequencing. Each switch supports bidirectional conduction with flat on-resistance across the full ±15 V analog range and features epitaxial-layer latchup protection.
It operates from dual supplies up to ±22 V (V+ to V− ≤ 44 V), accepts logic control at VL = 5 V, and maintains sub-100 ns switching times under RL = 300 Ω / CL = 35 pF conditions - enabling use in high-fidelity audio paths and precision measurement circuits without signal degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V - supports full-rail audio and instrumentation signals without clipping or distortion |
| On-Resistance (RDS(on)) | 30 Ω typ. - ensures minimal insertion loss and voltage drop in signal paths |
| Turn-On Time (tON) | 75 ns typ. - enables fast channel switching in time-critical sampling and multiplexing |
| Channel On-Leakage (ID(on)) | 40 pA max. - preserves accuracy in high-impedance sample-and-hold and sensor interfaces |
| Charge Injection | 60 pC - limits voltage step errors in switched-capacitor circuits and ADC front-ends |
| Supply Voltage Range (V+ to V−) | 44 V max. - allows robust operation in industrial ±15 V and ±20 V systems |
| Logic Compatibility | TTL/CMOS - simplifies interface to microcontrollers and FPGA I/O without level-shifting |
Pinout & Package
DG405DJ is housed in a 16-pin plastic DIP package (JEDEC MS-012) with 0.300″ wide body, 0.100″ lead pitch, and through-hole mounting. Pin 1 is located at the left end of the top row when viewed from above with notch or dot orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Switch terminals (S1–S4, D1–D4) | Four source/drain pairs for two independent SPDT switches; bidirectional conduction when enabled |
| 9, 10, 11, 12 | Control inputs (IN1, IN2, NC, NC) | IN1 controls SW1/SW2; IN2 controls SW3/SW4; logic high enables corresponding switch path |
| 13, 14 | Power rails (V−, GND) | V− connects to negative analog supply; GND is digital and analog reference common |
| 15, 16 | Power rails (VL, V+) | VL supplies logic interface (5 V); V+ connects to positive analog supply (up to +22 V) |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed timing prevents momentary shorting between analog paths during transition |
| Ultra-low power consumption | 0.35 µW typical - extends battery life in portable test equipment and handheld instruments |
| Flat on-resistance vs. voltage | ΔRDS(on) ≤ 5 Ω over ±15 V - maintains consistent gain and linearity across full signal swing |
| Latchup immunity | Epitaxial substrate design eliminates risk of destructive latchup under transient overvoltage |
| RoHS compliance | Meets Directive 2002/95/EC - suitable for environmentally regulated industrial and telecom deployments |
Applications
| Stereo Audio Source Selector | Dual-Slope Integrator |
|---|---|
Use Scenario: Routing left/right audio channels between multiple input sources (e.g., CD player, tuner, Bluetooth receiver) in consumer AV receivers. IC Role / Device Role / Timing Role: DG405DJ acts as a dual SPDT analog switch matrix, selecting active signal path while maintaining DC coupling and low crosstalk. Use Value: 90 dB channel-to-channel isolation and 72 dB off-isolation preserve stereo separation and prevent audible artifacts during switching. | Use Scenario: Configuring precision analog-to-digital conversion in multimeter and data acquisition systems using dual-slope integration architecture. IC Role / Device Role / Timing Role: DG405DJ selects between timing capacitors C1/C2 and toggles integrate/reset phases under microcontroller control. Use Value: 60 pC charge injection and 40 pA leakage minimize integration error and zero-drift accumulation over long measurement cycles. |
| Peak Detector Circuit | Communications Signal Routing |
Use Scenario: Capturing and holding maximum analog voltage levels in sensor monitoring and fault detection subsystems. IC Role / Device Role / Timing Role: DG405DJ functions as the hold switch (SW1) controlled by comparator output, charging storage capacitor C1 to peak input value. Use Value: Sub-100 ns switching and <1 nA off-leakage ensure accurate peak capture and stable hold duration exceeding seconds. | Use Scenario: Multiplexing RF front-end signals, IF paths, or baseband lines in PBX/PABX and telecom test equipment. IC Role / Device Role / Timing Role: DG405DJ routes analog voice or signaling tones between line cards, codecs, and test ports under system controller command. Use Value: ±15 V signal range and 12 pF off-capacitance maintain signal integrity up to 1 MHz without added phase shift or attenuation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4675EPP+ | Higher RDS(on) (45 Ω), wider supply range (±20 V), no guaranteed break-before-make | Less suitable for precision integrator timing due to undefined switching overlap | Prefer DG405DJ where guaranteed break-before-make and lower on-resistance are critical |
| ADG408BRZ | 8-channel single-pole, higher leakage (100 pA), same 30 Ω RDS(on), SOIC-16 only | Requires PCB redesign for pin-compatible replacement; lacks dual SPDT topology | Choose DG405DJ for direct dual SPDT function without channel count overhead or layout change |
Compared with MAX4675EPP+ and ADG408BRZ, the DG405DJ delivers guaranteed break-before-make timing, lower on-leakage, and native dual SPDT configuration - making it optimal for stereo routing and precision integrator designs where switching sequence integrity and analog fidelity are non-negotiable.
Availability
DG405DJ is available at Aetrix Electronics and suitable for audio switching, sample-and-hold circuits, and communications systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant through-hole assembly.
Supply support for DG405DJ 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 expertise in high-voltage, high-reliability silicon-gate process technologies.
The DG405DJ belongs to the DG401 series of low-power, high-speed CMOS analog switches - engineered for precision signal routing in battery-powered, industrial, and military-grade portable instrumentation.
FAQ
What is the maximum analog signal voltage supported by the DG405DJ?
The DG405DJ supports an analog signal range of ±15 V, meaning it can pass signals from –15 V to +15 V without distortion or clamping. This is specified under full temperature range (–40 °C to +85 °C) with V+ = 15 V and V− = –15 V. Exceeding these limits risks diode clamping or damage per absolute maximum ratings.
Does the DG405DJ require separate logic and analog supplies?
Yes, the DG405DJ requires three supply connections: V+ (positive analog rail), V− (negative analog rail), and VL (logic supply, typically 5 V). The VL pin powers internal level-shift circuitry, enabling TTL/CMOS-compatible control while isolating logic thresholds from analog supply variations - a key feature confirmed in the functional block diagram and truth table.
Is break-before-make timing guaranteed for both switch banks in the DG405DJ?
Yes, break-before-make timing is guaranteed for both SPDT switch banks in the DG405DJ. The datasheet explicitly states this behavior is "guaranteed for the SPDT configurations" and provides measured tD = 35 ns (typ.) for DG403 - a sibling device sharing identical architecture and process. DG405DJ's truth table and functional diagram confirm identical control logic per switch pair.
Can the DG405DJ operate from a single supply?
Yes, the DG405DJ supports single-supply operation with V− tied to ground and V+ set between 5 V and 44 V. In this mode, the analog signal range becomes 0 V to (V+ – 3 V), and logic control remains compatible via VL. This capability is documented under "Single supply capability" in the FEATURES section and verified in specification tables with V− = 0 V test conditions.
What is the thermal derating specification for the DG405DJ in plastic DIP package?
The DG405DJ in 16-pin plastic DIP has a power dissipation limit of 450 mW at 25 °C, with linear derating of 6 mW/°C above 75 °C. This means usable power drops to 300 mW at 100 °C ambient. Derating is defined in Absolute Maximum Ratings (page 3) and applies to total device dissipation - critical for sustained switching in enclosed industrial enclosures.
DG405DJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- DPST - NO
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 45Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 13V ~ 36V
- Voltage - Supply, Dual (V±):
- ±7V ~ 22V
- Switch Time (Ton, Toff) (Max):
- 150ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 60pC
- Channel Capacitance (CS(off), CD(off)):
- 12pF, 12pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -90dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
DG405DJ FAQ
1.How can I place an order for DG405DJ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG405DJ 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 DG405DJ reliable?
The price and inventory of DG405DJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG405DJ is usually 5 days.
3.What payment methods are accepted for DG405DJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG405DJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG405DJ?
DG405DJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG405DJ 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 DG405DJ?
For technical support, including DG405DJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG405DJ requirements.
6.How does Aetrix verify that DG405DJ is sourced from the original manufacturer or authorized distributors?
All DG405DJ 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 DG405DJ meets industry standards.
7.What is the process for return or replacement of DG405DJ?
All DG405DJ units undergo pre-shipment inspection (PSI). If there is an issue with DG405DJ, 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 DG405DJ part is unused and in its original packaging.
Return procedure for DG405DJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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