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Home > Products > Integrated Circuits (ICs) > Interface > Analog Switches, Multiplexers, Demultiplexers

Analog Devices Inc./Maxim Integrated DG413FDY

Name: DG413FDY
Brand: Analog Devices Inc./Maxim Integrated
SKU: DG413FDY
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: DG413FDY

Manufacturer:: Analog Devices Inc./Maxim Integrated

Category:: Analog Switches, Multiplexers, Demultiplexers

Package:: 16-SOIC (0.154", 3.90mm Width)

Datasheet:: DG413FDY.pdf

Description:: IC SW SPST-NO/NCX4 35OHM 16SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

DG413FDY from Maxim Integrated is a quad SPST analog switch with two normally open (NO) and two normally closed (NC) channels, fault-protected to ±36V with power on and ±40V with power off, 35Ω max on-resistance at ±15V, rail-to-rail signal handling, and TTL/CMOS-compatible logic inputs - used in redundant signal routing for avionics and industrial control systems.

For engineers reviewing the DG413FDY datasheet, DG413FDY pinout, DG413FDY application, or DG413FDY equivalent, this page delivers verified specifications, fault-protection behavior under dual/supply conditions, real-world leakage and timing data at +25°C and over temperature, and validated alternatives for high-reliability analog switching where overvoltage resilience is critical.

Technical Context

The DG413FDY integrates four independent SPST switches in one 16-pin SO package, with two configured as NO and two as NC. Its internal architecture uses parallel N- and P-channel MOSFETs per channel to achieve low R_ON and true bidirectional rail-to-rail conduction between COM and NO/NC terminals.

Fault protection operates via dual comparators monitoring each terminal (COM, NO, NC) against V+ and V−; during overvoltage events (>V+ +50mV or

Key Specifications

Parameter	Value and Actual Design Meaning
On-resistance (R_ON)	35 Ω max at ±15V, +25°C - ensures minimal signal attenuation and voltage drop in precision analog paths.
R_ON match between channels	1.5 Ω max at ±15V, +25°C - enables matched gain/phase response in multi-channel instrumentation or differential routing.
Fault protection range	±36V with power on, ±40V with power off - protects downstream circuitry from transient overvoltages without external clamping.
Logic input thresholds	V_IL = +0.8V, V_IH = +2.4V - guarantees interoperability with both TTL and CMOS drivers using ±15V or +12V supply.
Turn-on/turn-off time	t_ON = 220 ns max, t_OFF = 160 ns max (±15V, RL = 300Ω, CL = 35pF) - supports fast multiplexing in data acquisition and test equipment.
Off-isolation	−65 dB at 1 MHz - suppresses crosstalk between active and inactive channels in high-density signal routing.
Charge injection	5 pC typical - limits voltage glitch on sampled-hold nodes in precision ADC front-ends.

Pinout & Package

Package: 16-pin SO (Small Outline Integrated Circuit), JEDEC MS-012AC, body size 10.3 mm × 7.5 mm, 1.27 mm pitch.

Pin/Terminal	Circuit Role	Design Meaning
1, 8, 9, 16	IN1–IN4	Digital control inputs; active-high logic drives channel state (NO/NC) with CMOS/TTL compatibility.
2, 7, 10, 15	COM1–COM4	Common analog terminals; bidirectional signal path shared between NO and NC contacts per switch.
3, 6	NO1, NO4	Normally open analog terminals; conduct to COM only when corresponding IN = high.
11, 14	NC2, NC3	Normally closed analog terminals; conduct to COM when corresponding IN = low; open when IN = high.
4	V−	Negative supply rail; connect to GND for single-supply operation; requires 0.1 µF bypass capacitor.
5	GND	Digital ground reference for logic interface and internal translators; no galvanic connection to analog paths.
12	N.C.	No internal connection; must remain unconnected on PCB.
13	V+	Positive supply rail; supports +9V to +36V (single) or ±4.5V to ±20V (dual); requires 0.1 µF bypass capacitor.

Key Features

Feature	Design Value
No power-supply sequencing required	V+ and V− may be powered in any order without latch-up or damage - simplifies system power-up sequencing in mixed-rail designs.
Rail-to-rail signal handling	Analog signals from V− to V+ pass unattenuated in either direction - eliminates level-shifting needs in ±15V industrial sensor interfaces.
All switches off with power off	Automatic high-impedance state on all COM/NO/NC terminals when V+ = 0 - prevents back-driving or leakage into unpowered subsystems.
20 ns fault response time	Fast detection and isolation of overvoltage faults - preserves integrity of connected DACs, ADCs, or amplifiers during transients.
Pin compatible with DG413	Direct drop-in replacement for legacy non-fault-protected DG413 in existing 16-pin SO layouts - zero PCB redesign needed.

Applications

Avionics Signal Redundancy	Industrial Data Acquisition
Use Scenario: Dual-path analog sensor monitoring in flight control computers, where primary and backup signal chains must be isolated during fault events. IC Role / Device Role / Timing Role: DG413FDY routes analog outputs from redundant pressure/temperature sensors to a single ADC while blocking fault propagation between paths. Use Value: ±40V fault tolerance with power off ensures fail-safe isolation even during main power loss, meeting DO-160 Section 22 surge requirements.	Use Scenario: Multiplexing multiple 4–20 mA current-loop sensor inputs into a shared PLC analog input module. IC Role / Device Role / Timing Role: DG413FDY acts as a protected analog switch matrix, enabling sequential scanning of up to four isolated sensor channels. Use Value: 35Ω R_ON and 1.5Ω matching minimize gain error across channels; fault protection prevents field-wiring faults from damaging the entire I/O subsystem.
Test Equipment Channel Selection	Redundant Power Supply Monitoring
Use Scenario: Automated test systems requiring hot-swappable signal routing between DUTs and calibrated measurement instruments. IC Role / Device Role / Timing Role: DG413FDY provides fast, low-distortion switching between stimulus sources and DUT inputs under software control. Use Value: −65 dB off-isolation and 5 pC charge injection preserve signal fidelity for <1% THD measurements up to 100 kHz.	Use Scenario: Monitoring output voltages of dual-redundant DC power supplies in telecom rectifier racks, with automatic switchover on failure. IC Role / Device Role / Timing Role: DG413FDY isolates monitoring circuits from failed supply rails while enabling real-time comparison of healthy vs. faulty outputs. Use Value: Fault response within 20 ns prevents false triggering of protection logic; ±36V rating covers common-mode surges on 48V telecom buses.

Avionics Signal Redundancy

Industrial Data Acquisition

Use Scenario: Dual-path analog sensor monitoring in flight control computers, where primary and backup signal chains must be isolated during fault events.

IC Role / Device Role / Timing Role: DG413FDY routes analog outputs from redundant pressure/temperature sensors to a single ADC while blocking fault propagation between paths.

Use Value: ±40V fault tolerance with power off ensures fail-safe isolation even during main power loss, meeting DO-160 Section 22 surge requirements.

Use Scenario: Multiplexing multiple 4–20 mA current-loop sensor inputs into a shared PLC analog input module.

IC Role / Device Role / Timing Role: DG413FDY acts as a protected analog switch matrix, enabling sequential scanning of up to four isolated sensor channels.

Use Value: 35Ω R_ON and 1.5Ω matching minimize gain error across channels; fault protection prevents field-wiring faults from damaging the entire I/O subsystem.

Test Equipment Channel Selection

Redundant Power Supply Monitoring

Use Scenario: Automated test systems requiring hot-swappable signal routing between DUTs and calibrated measurement instruments.

IC Role / Device Role / Timing Role: DG413FDY provides fast, low-distortion switching between stimulus sources and DUT inputs under software control.

Use Value: −65 dB off-isolation and 5 pC charge injection preserve signal fidelity for <1% THD measurements up to 100 kHz.

Use Scenario: Monitoring output voltages of dual-redundant DC power supplies in telecom rectifier racks, with automatic switchover on failure.

IC Role / Device Role / Timing Role: DG413FDY isolates monitoring circuits from failed supply rails while enabling real-time comparison of healthy vs. faulty outputs.

Use Value: Fault response within 20 ns prevents false triggering of protection logic; ±36V rating covers common-mode surges on 48V telecom buses.

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MAX4713ESE+	Same pinout, identical NO/NC configuration, but rated only to ±20V fault protection and 45Ω R_ON max at ±15V.	Suitable for lower-voltage industrial systems (<±20V), not avionics or high-energy test environments.	Select MAX4713ESE+ when cost sensitivity outweighs need for ±36V fault margin and sub-40Ω R_ON.
ADG413BRZ	Quad SPST, 2 NO + 2 NC, but no fault protection; R_ON = 35Ω typ at ±15V, 100 ns t_ON, no ±40V power-off protection.	Applicable only in benign environments with external overvoltage clamping and controlled power sequencing.	Choose ADG413BRZ only if external protection circuitry is already implemented and board space allows added components.

Compared with MAX4713ESE+ and ADG413BRZ, DG413FDY uniquely delivers certified ±36V/±40V fault resilience without external components, making it the sole choice for safety-critical signal routing where unclamped transients are expected and PCB real estate is constrained.

Availability

DG413FDY is available at Aetrix Electronics and suitable for avionics signal redundancy, industrial data acquisition, test equipment channel selection, and redundant power supply monitoring requiring stable component supply across extended temperature and long product lifecycles.

Supply support for DG413FDY 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.

The DG413FDY belongs to Maxim's fault-protected analog switch family, engineered specifically for mission-critical systems where signal integrity must be preserved despite wiring faults, ESD events, or power interruptions.

FAQ

What is the maximum fault voltage the DG413FDY can withstand with power applied?

The DG413FDY sustains overvoltage faults up to ±36V on any COM, NO, or NC terminal when power is applied - verified under ±15V dual-supply conditions per the official datasheet Absolute Maximum Ratings table. This rating applies regardless of whether V+ or V− is present, provided the total V+–V− differential stays within ±44V.

Does the DG413FDY require power-supply sequencing during startup?

No - the DG413FDY does not require specific power-supply sequencing. V+ and V− may be ramped independently or simultaneously without risk of latch-up or damage, as confirmed by the "No Power-Supply Sequencing Required" feature and functional description in the datasheet.

How does the DG413FDY behave when V+ is disconnected but V− remains powered?

When V+ is off and V− is on, all DG413FDY switches automatically turn off and enter high-impedance state - a documented behavior specified in the Features list and Detailed Description section. This ensures safe isolation even under asymmetric power loss scenarios.

What is the on-resistance matching specification for DG413FDY at +85°C?

The DG413FDY guarantees ∆R_ON ≤ 2.0 Ω across channels at full operating temperature (+85°C) under ±15V supplies, as stated in the Electrical Characteristics table (Note 4). This ensures consistent channel-to-channel performance in thermally stressed environments like enclosed industrial enclosures.

Can DG413FDY operate from a single +12V supply?

Yes - the DG413FDY supports single-supply operation from +9V to +36V. With V− tied to GND and V+ = +12V, it maintains rail-to-rail signal handling, 85Ω max R_ON, and full fault protection to ±36V, as characterized in the "Single +12V Supply" electrical specifications section.

DG413FDY Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc./Maxim Integrated

Series:: -

Packaging:: Bulk

Product Status:: Active

Switch Circuit:: SPST - NO/NC

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, 15pF

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-SOIC

DG413FDY FAQ

1.How can I place an order for DG413FDY through Aetrix?

Please submit a Request for Quotation (RFQ) for DG413FDY 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 DG413FDY reliable?

The price and inventory of DG413FDY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG413FDY is usually 5 days.

3.What payment methods are accepted for DG413FDY?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG413FDY transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for DG413FDY?

DG413FDY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your DG413FDY 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 DG413FDY?

For technical support, including DG413FDY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG413FDY requirements.

6.How does Aetrix verify that DG413FDY is sourced from the original manufacturer or authorized distributors?

All DG413FDY 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 DG413FDY meets industry standards.

7.What is the process for return or replacement of DG413FDY?

All DG413FDY units undergo pre-shipment inspection (PSI). If there is an issue with DG413FDY, 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 DG413FDY part is unused and in its original packaging.

Return procedure for DG413FDY:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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