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Analog Devices Inc./Maxim Integrated DG441DY+
- Part No.:
- DG441DY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG441DY+.pdf
- Description:
- IC SWITCH SPST-NCX4 85OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:399
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Product details
Overview
DG441DY+ from Maxim Integrated is a quad, normally-closed (NC), single-pole/single-throw (SPST) analog switch IC designed for precision signal routing in bipolar or single-supply systems. It delivers 85Ω max on-resistance, 4Ω max on-resistance matching between channels, <5nA off-leakage at +85°C, 10pC max charge injection, and rail-to-rail analog signal handling from ±4.5V to ±20V or +10V to +30V supplies - enabling use in battery-operated test equipment and military radio front-ends.
For engineers reviewing the DG441DY+ datasheet, DG441DY+ pinout, DG441DY+ application, or DG441DY+ equivalent, key selection criteria include guaranteed rDS(ON) flatness (9Ω max), TTL/CMOS logic compatibility, exposed-pad SO package thermal performance, and verified NC switching behavior across industrial temperature range (-40°C to +85°C).
Technical Context
The DG441DY+ implements four independent SPST switches with normally closed configuration, each featuring matched silicon-gate MOSFET structures fabricated on a 44V process. Its control logic is inverted: logic low enables conduction, logic high disables all channels.
It supports dual-supply operation (±4.5V to ±20V) with V− referenced to ground or single-supply mode (+10V to +30V) with V− tied to GND. Analog signal range spans rail-to-rail, and internal ESD protection meets 2000V per Method 3015.7 without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| rDS(ON) | 85Ω max - ensures minimal signal attenuation and voltage drop in precision analog paths |
| rDS(ON) Match | 4Ω max - guarantees consistent gain/attenuation across all four channels in multi-path systems |
| Charge Injection | 10pC max - limits voltage glitch on sample-hold capacitors during switching |
| Off-Leakage Current | <5nA at +85°C - preserves accuracy in high-impedance sensor interfaces and long-duration hold modes |
| tON/tOFF | <250ns / <170ns - supports fast multiplexing in automated test equipment and real-time signal routing |
| Analog Signal Range | Rail-to-rail (±15.5V max with ±16.5V supplies) - enables full dynamic range utilization in ±15V systems |
| Supply Range | +10V to +30V (single) or ±4.5V to ±20V (dual) - accommodates legacy industrial rails and portable battery architectures |
Pinout & Package
Package: 16-pin narrow SO (SOIC-N), lead(Pb)-free, with exposed pad (EP) connected to V+ for enhanced thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16, 9, 8 | IN1–IN4 | Logic inputs controlling channel enable/disable; active-low for NC function |
| 2, 15, 10, 7 | D1–D4 | Drain terminals - analog output side of each SPST switch |
| 3, 14, 11, 6 | S1–S4 | Source terminals - analog input side of each SPST switch |
| 4 | V− | Negative supply rail; must be connected even in single-supply mode (tied to GND) |
| 5 | GND | Ground reference for logic and substrate; separate from analog signal ground path |
| 12 | V+ | Positive supply rail; also connected to substrate and exposed pad (EP) |
| 13 | N.C. | No internal connection - must remain unconnected or grounded per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Normally Closed (NC) Configuration | Ensures fail-safe signal continuity during power loss or logic fault in critical monitoring paths |
| Guaranteed rFLAT(ON) | 9Ω max over full analog range - maintains linearity in audio and instrumentation amplifier feedback loops |
| TTL/CMOS Logic Compatibility | Accepts 0.8V/2.4V thresholds - eliminates need for level-shifting when interfacing with microcontrollers and FPGAs |
| Low Power Consumption | 1.65mW max - extends battery life in portable test gear and handheld avionics displays |
| ESD Tolerance | 2000V min per Method 3015.7 - reduces field failure risk in unshielded lab and maintenance environments |
Applications
| Test Equipment Multiplexing | Military Radio Front-End Switching |
|---|---|
|
Use Scenario: High-speed channel selection in automated test equipment for sensor calibration and DUT stimulus routing. IC Role / Device Role / Timing Role: Quad NC analog switch providing low-distortion, low-leakage signal path selection under microcontroller control. Use Value: 4Ω rDS(ON) match ensures measurement repeatability across channels; <5nA leakage prevents drift in picoamp-level current measurements. |
Use Scenario: Antenna and filter bank switching in ruggedized HF/VHF transceivers operating across -40°C to +85°C. IC Role / Device Role / Timing Role: Fail-safe RF path selector maintaining continuity during power interruption or logic reset. Use Value: Rail-to-rail ±20V capability supports high-dynamic-range receiver front-ends; 2000V ESD rating withstands battlefield electrostatic events. |
| Battery-Operated Data Loggers | Heads-Up Display (HUD) Signal Routing |
|
Use Scenario: Low-power analog multiplexing for multi-sensor inputs (thermocouple, RTD, strain gauge) in field-deployable loggers. IC Role / Device Role / Timing Role: Precision SPST switch isolating sensor signals before ADC sampling to minimize crosstalk and offset error. Use Value: 10pC charge injection prevents hold capacitor voltage step errors; 1.65mW total power enables years of operation on coin-cell batteries. |
Use Scenario: Video and symbol overlay routing in automotive or aviation HUDs requiring seamless source switching. IC Role / Device Role / Timing Role: NC-configured analog switch ensuring default video path remains active unless overridden by system controller. Use Value: 250ns tON enables sub-frame switching; 85Ω rDS(ON) preserves video signal integrity without external buffering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG441BRZ | Same NC quad SPST topology but 100Ω rDS(ON), 25pC charge injection, no exposed pad | Higher on-resistance and charge injection limit use in precision sample-hold or low-noise sensor paths | Select ADG441BRZ only if footprint compatibility with SO-16 is required and 85°C operation is not needed |
| TS5A3154DCUR | Single-supply only (+1.65V to +5.5V), 0.9Ω rDS(ON), but rated only to +85°C and lacks bipolar support | Not suitable for ±15V instrumentation or military radios; optimized for low-voltage portable consumer devices | Choose TS5A3154DCUR for USB-powered diagnostics tools where ultra-low on-resistance outweighs supply flexibility |
Compared with ADG441BRZ and TS5A3154DCUR, the DG441DY+ uniquely combines industrial temperature rating, bipolar supply support, NC fail-safe behavior, and guaranteed 4Ω channel matching - making it irreplaceable in high-reliability analog routing where signal fidelity and operational safety are co-prioritized.
Availability
DG441DY+ is available at Aetrix Electronics and suitable for test equipment multiplexing, military radio front-end switching, and battery-operated data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG441DY+ 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, mixed-signal, and power management ICs for industrial, communications, and aerospace applications.
The DG441DY+ belongs to Maxim's precision analog switch family, engineered specifically for robust, low-distortion signal routing in harsh-environment instrumentation and defense systems where reliability under thermal and electrical stress is non-negotiable.
FAQ
What is the logic polarity of the DG441DY+ control inputs?
The DG441DY+ features inverted logic: a logic low (≤0.8V) on IN1–IN4 closes the corresponding SPST switch (NC behavior), while a logic high (≥2.4V) opens it. This ensures default continuity during power-up or controller reset - a critical safety feature in monitoring and control systems using the DG441DY+.
Does the DG441DY+ support true rail-to-rail analog signal operation?
Yes, the DG441DY+ supports rail-to-rail analog signal handling: with ±15V supplies, the analog range extends from −15.5V to +15.5V; with +12V single supply, it spans 0V to +11.5V. This capability is confirmed in the Electrical Characteristics tables and Typical Operating Characteristics plots for the DG441DY+ across its full temperature range.
How is the exposed pad (EP) on the DG441DY+ SO package used?
The exposed pad on the DG441DY+ SO package must be soldered and electrically connected to V+, not left floating or grounded. It serves as an additional V+ connection and primary thermal path - improving power dissipation by ~25% versus standard SO-16. The datasheet explicitly warns against using EP as the sole V+ connection; main V+ pins must still be bonded.
Can the DG441DY+ operate with unbalanced supplies like +24V and −5V?
Yes, the DG441DY+ supports unbalanced supplies: the absolute maximum rating requires |V+ − V−| ≤ 44V, and operation is specified for any combination meeting that constraint and staying within individual rail limits (e.g., V+ = +24V, V− = −5V yields 29V differential - well within spec). This flexibility is documented in the Applications Information section of the DG441DY+ datasheet.
What is the maximum allowable analog signal voltage for the DG441DY+ at +85°C?
At +85°C, the DG441DY+ maintains full specification compliance up to ±15.5V analog signal swing when powered with ±16.5V supplies. Off-leakage remains <5nA and rDS(ON) stays within 85Ω max - verified by 100% production testing at hot temperature and correlation at +25°C per Note 5 in the DG441DY+ datasheet.
DG441DY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 85Ohm
- Channel-to-Channel Matching (ΔRon):
- 4Ohm (Max)
- Voltage - Supply, Single (V+):
- 10V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 250ns, 120ns
- -3db Bandwidth:
- -
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 4pF, 4pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -100dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG441DY+ FAQ
1.How can I place an order for DG441DY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG441DY+ 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 DG441DY+ reliable?
The price and inventory of DG441DY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG441DY+ is usually 5 days.
3.What payment methods are accepted for DG441DY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG441DY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG441DY+?
DG441DY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG441DY+ 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 DG441DY+?
For technical support, including DG441DY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG441DY+ requirements.
6.How does Aetrix verify that DG441DY+ is sourced from the original manufacturer or authorized distributors?
All DG441DY+ 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 DG441DY+ meets industry standards.
7.What is the process for return or replacement of DG441DY+?
All DG441DY+ units undergo pre-shipment inspection (PSI). If there is an issue with DG441DY+, 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 DG441DY+ part is unused and in its original packaging.
Return procedure for DG441DY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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