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Analog Devices Inc./Maxim Integrated DG412FEUE+
- Part No.:
- DG412FEUE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DG412FEUE+.pdf
- Description:
- IC SW SPST-NOX4 35OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,456
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Product details
Overview
DG412FEUE+ from Maxim Integrated is a quad, single-pole/single-throw (SPST), normally open (NO) analog switch with fault protection, rail-to-rail signal handling, and ±36V fault tolerance with power applied. It features 35Ω max on-resistance at +25°C, 1.5Ω max channel-to-channel RON match, and operates from ±4.5V to ±20V dual supplies or +9V to +36V single supply. It is used in high-reliability signal routing for test equipment and industrial control systems where overvoltage transients are present.
For engineers reviewing the DG412FEUE+ datasheet, DG412FEUE+ pinout, DG412FEUE+ application, or DG412FEUE+ equivalent, key selection criteria include fault-protection voltage limits (±40V with power off), TTL/CMOS-compatible logic thresholds (+0.8V / +2.4V), 20ns typical fault response time, and verified 16-pin TSSOP package compatibility with legacy DG412 layouts.
Technical Context
The DG412FEUE+ implements dual-FET (N+P channel) parallel switching per channel to achieve low, flat on-resistance across rail-to-rail input voltages. Its internal fault-detection comparators monitor COM_, NO_, and NC_ terminals continuously against V+ and V−, forcing high-impedance isolation within 20ns when signals exceed supply rails by ~50mV.
Unlike standard analog switches, it maintains full fault protection on all three terminals-COM, NO, and NC-with identical ±36V (power on) and ±40V (power off) limits. All four switches turn off automatically when V+ is unpowered, regardless of V− state, ensuring fail-safe behavior in partial-power-loss scenarios.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 35 Ω max at +25°C with ±15V supplies - ensures minimal signal attenuation and voltage drop in precision analog paths. |
| RON Match (ΔRON) | 1.5 Ω max between channels - enables matched gain/attenuation in multi-channel instrumentation and multiplexing. |
| Fault Protection Range | ±36V with power on, ±40V with power off - protects downstream circuitry from transient overvoltages without external clamping. |
| Logic Thresholds | +0.8V (VIL), +2.4V (VIH) - guarantees interoperability with both TTL and CMOS drivers using ±15V or +12V supplies. |
| Supply Range | ±4.5V to ±20V dual or +9V to +36V single - supports wide-range industrial and avionics power architectures without level-shifting. |
| Fault Response Time | 20 ns typical - limits energy injection during fast transients, preserving integrity of sensitive measurement nodes. |
| Off-Leakage Current | ±0.25 nA max at +25°C - prevents DC error accumulation in high-impedance sensor front-ends and data acquisition inputs. |
Pinout & Package
Package: 16-pin TSSOP (thin shrink small-outline package), RoHS-compliant, 4.4mm × 5.0mm footprint, 0.65mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Digital control inputs; active-high logic turns respective NO switch ON; compatible with TTL/CMOS voltage levels. |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals; bidirectional signal path; fault-protected up to ±40V with power off. |
| 3, 6, 11, 14 | NO1–NO4 | Normally open analog outputs; connect to COM only when corresponding IN is high; fully fault-protected. |
| 4 | V− | Negative supply rail; connect to GND for single-supply operation; requires 0.1µF bypass capacitor to GND. |
| 5 | GND | Digital ground reference; separates logic domain from analog signal paths; no galvanic connection to COM/NO. |
| 12 | N.C. | No internal connection; must be left floating or tied to GND per layout best practices; not usable as thermal pad. |
| 13 | V+ | Positive supply rail; supports up to +36V; requires 0.1µF bypass capacitor to GND for noise suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Signals from V− to V+ pass unattenuated through ON switches - eliminates clipping in ±10V industrial sensor interfaces. |
| Pin-compatible replacement | Identical pinout to industry-standard DG412 - enables drop-in upgrade of legacy designs without PCB rework. |
| Automatic power-off safety | All switches go OFF when V+ is unpowered - prevents unintended signal coupling during brownout or hot-swap events. |
| Matched channel performance | ≤1.5Ω RON mismatch across four channels - critical for balanced differential switching and calibration accuracy. |
| Control-line fault protection | IN pins protected from V− −0.3V to V− +40V - withstands ESD and latch-up-inducing voltage excursions on digital lines. |
Applications
| Test Equipment Signal Routing | Industrial Process Control I/O |
|---|---|
Use Scenario: Multiplexing multiple sensor inputs (thermocouples, RTDs) into a shared ADC channel under noisy factory conditions with potential ground shifts and transient surges. IC Role / Device Role / Timing Role: Fault-protected analog switch enabling safe, isolated signal selection prior to conditioning and digitization. Use Value: ±40V fault tolerance with power off prevents damage during maintenance disconnects; 35Ω RON minimizes gain error in calibrated measurement chains. |
Use Scenario: Routing 4–20mA loop signals between redundant PLC modules and field actuators in hazardous-area control cabinets. IC Role / Device Role / Timing Role: Normally open SPST switch providing galvanically isolated signal path activation under programmable logic control. Use Value: Automatic shutdown when V+ fails ensures no false actuation during power loss; TTL-compatible inputs simplify integration with existing controller GPIO. |
| Avionics Backup System Switching | Redundant Communication Channel Selection |
Use Scenario: Selecting between primary and backup flight control sensors in airborne systems where EMI and lightning-induced transients exceed ±30V. IC Role / Device Role / Timing Role: Fault-protected analog switch acting as fail-safe signal gate in triple-modular-redundant (TMR) voting architecture. Use Value: 20ns fault response time limits transient energy injection; ±36V protection aligns with DO-160 Section 22 surge requirements. |
Use Scenario: Switching RF or baseband signals between primary and backup transceivers in satellite telemetry downlinks operating in radiation-prone environments. IC Role / Device Role / Timing Role: Quad SPST switch enabling dynamic reconfiguration of signal paths without mechanical relays. Use Value: 15pF off-capacitance and −65dB off-isolation preserve signal integrity at 1MHz; rail-to-rail operation supports full dynamic range of analog IF stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG412BRUZ | 4-channel NO switch, ±20V max supply, 35Ω RON, but no fault protection beyond ABS max ratings; 16-pin TSSOP. | Lacks integrated ±36V fault protection and rail-to-rail signal handling - requires external TVS/clamp networks for transient immunity. | Select ADG412BRUZ only if fault transients are absent or externally managed; not suitable for direct replacement in harsh environments. |
| MAX4712ESE+ | Quad NO switch with fault protection, ±20V supply range, 45Ω RON max, same 16-pin SO package; lower voltage rating than DG412FEUE+. | Rated for ±20V supplies only - cannot support +36V single-supply operation required in some industrial systems. | Choose MAX4712ESE+ for cost-sensitive, lower-voltage designs where ±20V compliance suffices and TSSOP is not mandatory. |
Compared with ADG412BRUZ and MAX4712ESE+, the DG412FEUE+ uniquely delivers ±36V fault protection with power applied and ±40V with power off in a 16-pin TSSOP, enabling robust signal routing in high-voltage industrial and avionics systems without external protection components.
Availability
DG412FEUE+ is available at Aetrix Electronics and suitable for test equipment signal routing, industrial process control I/O, avionics backup system switching, and redundant communication channel selection requiring stable component supply across extended temperature and voltage ranges.
Supply support for DG412FEUE+ 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 high-performance analog and mixed-signal ICs for demanding industrial, automotive, and communications applications.
The DG412FEUE+ belongs to the DG41xF fault-protected analog switch family, engineered specifically for signal integrity and reliability in environments with frequent overvoltage faults and partial power loss.
FAQ
What is the maximum supply voltage range supported by the DG412FEUE+?
The DG412FEUE+ operates from ±4.5V to ±20V dual supplies or a single +9V to +36V supply. Absolute maximum ratings allow V+ to +44V and V− to −44V relative to GND, but functional operation is guaranteed only within the specified ranges. Exceeding ±20V dual or +36V single supply may cause permanent damage.
Does the DG412FEUE+ require power-supply sequencing?
No, the DG412FEUE+ does not require power-supply sequencing. It safely powers up and operates regardless of whether V+ or V− is applied first. All switches remain OFF until valid logic levels are applied to IN pins, and automatic shutdown occurs if V+ is lost - eliminating risk of undefined states during power ramp-up or brownout.
How does fault protection work on the NO and COM terminals of the DG412FEUE+?
The DG412FEUE+ uses internal comparators to monitor NO and COM terminals continuously against V+ and V−. If either terminal exceeds V+ by ~50mV or falls below V− by ~50mV, both N- and P-channel FETs in that switch channel turn OFF within 20ns, isolating the terminal with microamp-level leakage. Protection applies equally to all NO and COM pins, with ±36V limit during operation and ±40V with power off.
Can the DG412FEUE+ be used with a single +12V supply?
Yes, the DG412FEUE+ supports single +12V operation: connect V− to GND, apply +12V to V+, and ensure logic inputs meet TTL/CMOS thresholds (+0.8V low, +2.4V high). RON remains ≤35Ω, fault protection covers −36V to +36V on NO/COM with power on, and logic inputs remain compatible without level shifters.
Is the DG412FEUE+ pin-compatible with the legacy DG412?
Yes, the DG412FEUE+ has identical pinout and footprint to the non-fault-protected DG412. All IN, COM, NO, V+, V−, GND, and N.C. assignments match exactly. This allows direct replacement in existing PCBs without layout changes - adding fault protection and rail-to-rail capability while preserving timing, drive, and routing integrity.
DG412FEUE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- 200mOhm
- Voltage - Supply, Single (V+):
- 9V ~ 36V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 175ns, 145ns
- -3db Bandwidth:
- -
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 15pF, 47pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -105dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
DG412FEUE+ FAQ
1.How can I place an order for DG412FEUE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG412FEUE+ 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 DG412FEUE+ reliable?
The price and inventory of DG412FEUE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG412FEUE+ is usually 5 days.
3.What payment methods are accepted for DG412FEUE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG412FEUE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG412FEUE+?
DG412FEUE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG412FEUE+ 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 DG412FEUE+?
For technical support, including DG412FEUE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG412FEUE+ requirements.
6.How does Aetrix verify that DG412FEUE+ is sourced from the original manufacturer or authorized distributors?
All DG412FEUE+ 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 DG412FEUE+ meets industry standards.
7.What is the process for return or replacement of DG412FEUE+?
All DG412FEUE+ units undergo pre-shipment inspection (PSI). If there is an issue with DG412FEUE+, 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 DG412FEUE+ part is unused and in its original packaging.
Return procedure for DG412FEUE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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