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Analog Devices Inc./Maxim Integrated DG411FDJ+
- Part No.:
- DG411FDJ+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
DG411FDJ+.pdf
- Description:
- INTEGRATED CIRCUIT
- Quantity:
- Payment:
- Shipping:
Inventory:2,780
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Product details
Overview
DG411FDJ+ from Maxim Integrated is a quad SPST analog switch with normally closed (NC) configuration, fault-protected inputs, rail-to-rail signal handling, and ±36V fault protection with power applied. It operates on dual supplies (±4.5V to ±20V) or single +9V to +36V, features 35Ω max on-resistance at +25°C, matched channel RON ≤1.5Ω, and targets high-reliability signal routing in avionics and industrial control systems.
For engineers reviewing the DG411FDJ+ datasheet, DG411FDJ+ pinout, DG411FDJ+ application, or DG411FDJ+ equivalent, this page delivers verified specifications including fault response time (20ns), off-isolation (−65dB), leakage current (±20nA), logic compatibility (TTL/CMOS), and package-specific thermal derating (10.53mW/°C).
Technical Context
The DG411FDJ+ implements dual-FET parallel architecture (N- and P-channel) per switch to achieve low RON and true bidirectional rail-to-rail conduction. Its internal comparators continuously monitor COM/NO/NC terminals against V+ and V−, triggering immediate high-impedance isolation upon overvoltage detection.
Fault response is polarity-agnostic: ±36V protection active with ±15V supplies, ±40V with power off. All four switches turn off when V+ is unpowered-even if V− remains active-ensuring fail-safe behavior in asymmetric supply loss scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 35Ω max at +25°C, ±15V supplies - ensures minimal signal attenuation in precision analog paths. |
| RON Match Between Channels | 1.5Ω max at +25°C - enables matched gain/phase in multi-channel instrumentation or differential switching. |
| Fault Protection Range | ±36V with power on, ±40V with power off - protects downstream circuitry during transient overvoltage events without external clamping. |
| Fault Response Time | 20ns typical - limits fault energy injection into sensitive circuits before isolation engages. |
| Off-Isolation | −65dB at 1MHz - suppresses crosstalk between active and inactive channels in dense signal routing. |
| Logic Compatibility | TTL/CMOS thresholds (VIL = +0.8V, VIH = +2.4V) with ±15V or +12V supply - eliminates level-shifting in mixed-voltage systems. |
| Supply Range | ±4.5V to ±20V dual or +9V to +36V single - supports legacy ±15V industrial rails and modern high-voltage test equipment. |
Pinout & Package
Package: 16-pin plastic DIP (0.300" wide), through-hole mount, JEDEC MS-001 compliant, thermal resistance θJA = 95°C/W (derates 10.53mW/°C above +70°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Digital control inputs; TTL/CMOS-compatible, no supply sequencing required. |
| 2, 7, 10, 15 | COM1–COM4 | Common analog terminals; fault-protected, rail-to-rail capable, bidirectional. |
| 3, 6, 11, 14 | NC1–NC4 | Normally closed analog terminals; open when INx = HIGH, shorted to COMx when INx = LOW. |
| 4 | V− | Negative supply input; connect to GND for single-supply operation; bypass with 0.1µF capacitor. |
| 5 | GND | Digital ground reference; isolated from analog signal paths; required for logic threshold stability. |
| 12 | N.C. | No internal connection; must remain unconnected on PCB. |
| 13 | V+ | Positive supply input; supports up to +36V; bypass with 0.1µF capacitor to GND. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ without clipping - enables full dynamic range utilization in data acquisition front-ends. |
| Fault-protected COM/NC terminals | All four NC and COM pins withstand ±40V faults with power off - eliminates need for external TVS diodes in backup system interfaces. |
| Pin compatibility with DG411 | Identical pinout to industry-standard non-fault-protected DG411 - enables drop-in replacement without PCB redesign. |
| No power-supply sequencing required | V+ and V− may be powered in any order - simplifies power management in multi-rail systems with staggered startup. |
| All switches off with V+ unpowered | Guaranteed open-circuit state when V+ is absent - prevents unintended signal path activation during brownout conditions. |
Applications
| Avionics Signal Routing | Industrial Redundancy Switching |
|---|---|
|
Use Scenario: Selecting between primary and backup sensor inputs in flight control computers under EMI-prone environments. IC Role / Device Role / Timing Role: Quad NC switch isolating backup channels until commanded; fault protection guards against lightning-induced transients on sensor harnesses. Use Value: Prevents single-point failure propagation; ±40V power-off protection maintains isolation during emergency power loss. |
Use Scenario: Automatic switchover between main and redundant PLC I/O modules during field maintenance or fault recovery. IC Role / Device Role / Timing Role: Fault-tolerant SPST switch enabling hot-swap capability; rail-to-rail operation preserves 4–20mA loop integrity across supply variations. Use Value: Eliminates external protection components; 20ns fault response minimizes downtime during surge events. |
| Automated Test Equipment (ATE) | Medical Instrumentation Multiplexing |
|
Use Scenario: Routing calibrated reference voltages and DUT signals in semiconductor parametric testers with ±15V rails. IC Role / Device Role / Timing Role: Precision analog switch with 1.5Ω RON matching ensuring consistent gain across 4-channel calibration paths. Use Value: Reduces measurement uncertainty; −65dB off-isolation prevents crosstalk between high-impedance reference and DUT nodes. |
Use Scenario: Multiplexing ECG, EEG, and EMG electrode inputs into a shared ADC front-end while maintaining patient safety isolation. IC Role / Device Role / Timing Role: Isolated NC switch disconnecting unused electrodes; ±36V fault protection meets IEC 60601-1 transient immunity requirements. Use Value: Complies with medical safety standards without additional protection circuitry; <20nA leakage avoids DC offset errors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4711ESE+ | Lower voltage rating (+5V single supply only); 60Ω RON; no fault protection. | Suitable for low-voltage portable instrumentation where fault robustness is not required. | Select MAX4711ESE+ only when operating strictly within 0–5V rails and external protection is implemented. |
| ADG411BRZ | Same 16-pin SOIC package; 35Ω RON; ±20V max supply; no ±40V power-off fault protection. | Preferred for space-constrained designs needing surface-mount assembly but lacking extreme fault tolerance. | Choose ADG411BRZ when board area is critical and fault exposure is limited to powered operation only. |
Compared with DG411FDJ+, MAX4711ESE+ trades fault resilience for lower voltage operation and higher RON, while ADG411BRZ offers identical pinout and RON but lacks the ±40V power-off protection essential for safety-critical shutdown sequences.
Availability
DG411FDJ+ is available at Aetrix Electronics and suitable for avionics signal routing, industrial redundancy switching, and automated test equipment requiring stable component supply across extended temperature ranges (−40°C to +85°C).
Supply support for DG411FDJ+ 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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The DG411FDJ+ belongs to Maxim's fault-protected analog switch family, engineered specifically for high-reliability signal routing in environments subject to electrical transients, supply asymmetry, and unplanned power loss.
FAQ
What is the maximum fault voltage the DG411FDJ+ can withstand with power off?
The DG411FDJ+ sustains ±40V overvoltage on COM, NC, or NO terminals with all supplies disconnected. This is confirmed in the Absolute Maximum Ratings table and functional description - it enables safe handling during storage, shipping, or system maintenance when power is absent.
Does the DG411FDJ+ require supply sequencing between V+ and V−?
No. The DG411FDJ+ has no power-supply sequencing requirement: V+ and V− may be powered in any order, or one may remain unpowered while the other is active. This is explicitly stated in the Features list and validated by the internal logic-level translator architecture.
How does the DG411FDJ+ behave when V+ is unpowered but V− is active?
When V+ is unpowered, all four switches in the DG411FDJ+ turn OFF regardless of V− status or INx logic states. This fail-safe behavior is guaranteed in the Detailed Description section and ensures no signal path remains active during partial power loss.
What is the on-resistance match specification for DG411FDJ+ at +25°C?
The DG411FDJ+ guarantees ≤1.5Ω maximum on-resistance mismatch (∆RON) between any two channels at +25°C under ±15V supplies and 10mA load. This value is measured and specified in the Electrical Characteristics table and directly impacts gain matching in multi-channel systems.
Is the DG411FDJ+ pin-compatible with the legacy DG411?
Yes. The DG411FDJ+ shares identical pinout, terminal functions, and footprint with the non-fault-protected DG411. This is explicitly documented in the Pin Compatibility section and confirmed by matching pin descriptions for INx, COMx, NCx, V+, V−, GND, and N.C.
DG411FDJ+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- -
- Number of Circuits:
- -
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
DG411FDJ+ FAQ
1.How can I place an order for DG411FDJ+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG411FDJ+ 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 DG411FDJ+ reliable?
The price and inventory of DG411FDJ+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG411FDJ+ is usually 5 days.
3.What payment methods are accepted for DG411FDJ+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG411FDJ+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG411FDJ+?
DG411FDJ+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG411FDJ+ 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 DG411FDJ+?
For technical support, including DG411FDJ+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG411FDJ+ requirements.
6.How does Aetrix verify that DG411FDJ+ is sourced from the original manufacturer or authorized distributors?
All DG411FDJ+ 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 DG411FDJ+ meets industry standards.
7.What is the process for return or replacement of DG411FDJ+?
All DG411FDJ+ units undergo pre-shipment inspection (PSI). If there is an issue with DG411FDJ+, 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 DG411FDJ+ part is unused and in its original packaging.
Return procedure for DG411FDJ+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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