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Analog Devices Inc./Maxim Integrated DG417LDY+T
- Part No.:
- DG417LDY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG417LDY+T.pdf
- Description:
- IC SWITCH SPST-NCX1 35OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,457
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Product details
Overview
DG417LDY+T from Maxim Integrated is a precision CMOS single-pole/single-throw (SPST) analog switch with normally closed (NC) configuration, 35Ω max on-resistance, ±4.5V to ±20V or +9V to +36V supply operation, and +3V logic-compatible digital inputs (VIH = 2.0V, VIL = 0.8V). It delivers rail-to-rail analog signal handling, <5nA off-leakage at +85°C, and sub-175ns switching in battery-powered test equipment and audio routing systems.
For engineers reviewing the DG417LDY+T datasheet, DG417LDY+T pinout, DG417LDY+T application, or DG417LDY+T equivalent, key selection criteria include guaranteed RON matching (≤3Ω), RON flatness (≤4Ω), charge injection (15pC), off-isolation (–90dB at 1MHz), and compatibility with TTL/CMOS logic without level-shifting in industrial and communications signal-path designs.
Technical Context
The DG417LDY+T implements a fully differential CMOS switch architecture enabling bidirectional conduction, zero-power digital input biasing, and power-supply sequencing-free operation-eliminating latch-up risk during V+, V−, or GND ramp-up sequences. Its internal protection diodes clamp analog signals to within 0.3V of rails, supporting robust signal integrity across ±15V dual or +12V single supplies.
Designed for precision analog routing, it guarantees matched on-resistance between channels (critical for differential pair switching) and flat on-resistance over full signal range (±10V), ensuring minimal THD (0.002%) and crosstalk (–86dB for DG419L variants) in high-fidelity audio and sample-and-hold circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RON) | 35Ω max at ±15V supplies - ensures low insertion loss and minimal voltage drop in signal paths up to ±10V. |
| RON matching | 3Ω max between channels - enables precise differential signal switching without gain mismatch. |
| RON flatness | 4Ω max over signal range - maintains consistent gain and linearity across full analog input swing. |
| Off-leakage current | <5nA at +85°C - preserves accuracy in high-impedance sample-and-hold and sensor front-ends. |
| Switching time (tON/tOFF) | <175ns / <185ns - supports fast multiplexing in automated test equipment and real-time control loops. |
| Logic thresholds | VIH = 2.0V, VIL = 0.8V - direct interface with +3V CMOS/TTL microcontrollers without external level shifters. |
| Charge injection | 15pC - minimizes voltage glitch on sampled nodes, critical for precision ADC driver stages. |
| Off-isolation | –90dB at 1MHz - suppresses crosstalk between inactive channels in multi-channel routing applications. |
Pinout & Package
Package: 8-pin SO (Small Outline) - surface-mount, industry-standard footprint compatible with automated assembly and IPC-7351B land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 COM | Analog common terminal | Signal path hub connecting to NC (pin 8); must be routed with controlled impedance for low-noise analog integrity. |
| 2 N.C. | No connection | Internally unconnected; leave floating or tie to GND per layout best practices to reduce parasitic coupling. |
| 3 GND | Logic ground reference | Return path for digital input; separate from analog ground unless star-point bonded to avoid noise injection. |
| 4 V+ | Positive analog supply | Accepts +9V to +36V single or +15V in dual-supply mode; decouple locally with ≥1µF ceramic capacitor. |
| 6 IN | Logic-level control input | +3V-compatible digital input; drives internal CMOS gate; no external pull-up required due to defined VIH/VIL. |
| 7 V− | Negative analog supply | Accepts –4.5V to –20V in dual mode; essential for rail-to-rail bipolar signal handling and charge-injection cancellation. |
| 8 NC | Normally closed analog terminal | Closed to COM when IN = low (0.8V); opens when IN = high (2.0V); carries full analog signal current (±30mA continuous). |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports input signals from V− to V+ (e.g., –15V to +15V), eliminating clipping in wide-dynamic-range instrumentation. |
| Power-supply sequencing-free operation | No required startup order for V+, V−, or GND - prevents latch-up and simplifies power management in multi-rail systems. |
| +3V logic compatibility | Digital input thresholds (VIH = 2.0V, VIL = 0.8V) match standard 3.3V I/O, removing need for level translators in FPGA/microcontroller interfaces. |
| Guaranteed RON flatness (4Ω max) | Maintains consistent channel gain across full analog range, reducing harmonic distortion in audio and measurement applications. |
| Low charge injection (15pC) | Minimizes voltage step on sampled capacitors, enabling accurate DC-coupled acquisition in precision data loggers. |
| Extended temperature range | Rated from –40°C to +85°C - suitable for industrial control, avionics guidance, and outdoor communications hardware. |
Applications
| Sample-and-Hold Circuits | Communications Systems |
|---|---|
|
Use Scenario: Capturing and holding analog sensor outputs in high-resolution data acquisition systems. IC Role / Device Role / Timing Role: Normally closed SPST switch isolating hold capacitor during sampling phase; opens on command to freeze voltage. Use Value: 35Ω RON and 4Ω flatness ensure minimal droop and gain error; <5nA leakage preserves held voltage for >10ms at +85°C. |
Use Scenario: Routing voice or modem signals between line interface units and codec channels in PBX/PABX infrastructure. IC Role / Device Role / Timing Role: Signal path selector enabling dynamic reconfiguration of analog telephony paths under microcontroller control. Use Value: –90dB off-isolation prevents talk-down between active/inactive lines; 175ns tON supports burst-mode signaling. |
| Test Equipment | Battery-Operated Systems |
|
Use Scenario: Multiplexing DUT signals into shared measurement circuitry in portable multimeters and automated test fixtures. IC Role / Device Role / Timing Role: Low-leakage, low-RON analog switch enabling high-impedance probe isolation and signal conditioning path selection. Use Value: 35Ω RON minimizes loading on high-Z sources; <5nA leakage avoids drift in µA-range current measurements. |
Use Scenario: Power-gating analog subsystems (e.g., sensors, amplifiers) in handheld medical monitors and IoT edge devices. IC Role / Device Role / Timing Role: Normally closed switch enabling default signal path; opened only during low-power sleep to cut analog domain current. Use Value: Sub-1µA supply current (I+, I−) extends battery life; +3V logic compatibility eliminates auxiliary voltage rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617EUA+T | Lower RON (15Ω), but only rated to +70°C; requires external logic-level translation for +3V control. | Better for high-speed, commercial-temp data acquisition; unsuitable for extended-temp industrial deployment. | Select when speed and on-resistance outweigh temperature rating and logic compatibility requirements. |
| ADG1419BRMZ-REEL7 | SPDT configuration with break-before-make; 1.8Ω RON, but VIH = 2.4V minimum - marginal compatibility with weak +3V drivers. | Preferred for differential signal routing where channel coordination matters; less tolerant of marginal logic drive strength. | Choose for ultra-low RON and coordinated switching; verify driver output high-voltage margin before adoption. |
Compared with MAX4617EUA+T and ADG1419BRMZ-REEL7, DG417LDY+T uniquely balances extended temperature operation, guaranteed +3V logic compatibility, and robust leakage performance - making it optimal for field-deployed instrumentation and telecom infrastructure where reliability trumps raw speed.
Availability
DG417LDY+T is available at Aetrix Electronics and suitable for sample-and-hold circuits, communications systems, and battery-operated systems requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for DG417LDY+T 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 fabless semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.
The DG417LDY+T belongs to Maxim's precision analog switch product line, engineered for low-distortion, low-leakage signal routing in mission-critical measurement and control systems where parameter guarantees across temperature and supply variation are mandatory.
FAQ
What is the maximum analog signal voltage range supported by the DG417LDY+T?
The DG417LDY+T supports analog signals from V− to V+ - up to ±20V in dual-supply mode or +36V in single-supply operation. With V+ = +15V and V− = −15V, the full usable range is −15.3V to +15.3V due to internal diode clamping (±0.3V beyond rails). This rail-to-rail capability ensures undistorted passage of high-amplitude sensor or audio signals without clipping.
Does the DG417LDY+T require power-supply sequencing during startup?
No, the DG417LDY+T features power-supply sequencing-free operation. Unlike legacy DG417 switches, it eliminates latch-up risk regardless of whether V+, V−, or GND powers up first. This simplifies system power design and removes the need for external protection diodes or strict sequencing controllers in multi-rail embedded systems using DG417LDY+T.
How does the DG417LDY+T achieve +3V logic compatibility with ±15V supplies?
The DG417LDY+T achieves +3V logic compatibility through internally referenced input thresholds: VIH = 2.0V and VIL = 0.8V, independent of analog supply voltages. This allows direct connection to 3.3V microcontrollers or FPGAs without level shifters, even when powered from ±15V rails - a key differentiator from older analog switches requiring dedicated VL pins or external bias networks.
What is the guaranteed on-resistance matching specification for the DG417LDY+T?
The DG417LDY+T guarantees on-resistance matching of ≤3Ω between channels - though as a single SPST device, this spec reflects internal process consistency and applies to repeatability across units and temperature. This tight matching ensures predictable gain and minimal offset in precision instrumentation front-ends where multiple DG417LDY+T devices may be used in parallel or cascaded configurations.
Can the DG417LDY+T be used in single-supply +12V applications?
Yes, the DG417LDY+T operates from +9V to +36V single supply. At +12V, typical on-resistance is 100Ω (max 125Ω), turn-on time is <300ns, and off-leakage remains <5nA at +85°C. Its rail-to-rail architecture supports signals from 0V to +12V, making it suitable for industrial PLC I/O modules and portable test gear powered from nominal +12V batteries or adapters.
DG417LDY+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- Voltage - Supply, Single (V+):
- 9V ~ 36V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 175ns, 185ns
- -3db Bandwidth:
- -
- Charge Injection:
- 15pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
DG417LDY+T FAQ
1.How can I place an order for DG417LDY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for DG417LDY+T 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 DG417LDY+T reliable?
The price and inventory of DG417LDY+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG417LDY+T is usually 5 days.
3.What payment methods are accepted for DG417LDY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG417LDY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG417LDY+T?
DG417LDY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG417LDY+T 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 DG417LDY+T?
For technical support, including DG417LDY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG417LDY+T requirements.
6.How does Aetrix verify that DG417LDY+T is sourced from the original manufacturer or authorized distributors?
All DG417LDY+T 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 DG417LDY+T meets industry standards.
7.What is the process for return or replacement of DG417LDY+T?
All DG417LDY+T units undergo pre-shipment inspection (PSI). If there is an issue with DG417LDY+T, 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 DG417LDY+T part is unused and in its original packaging.
Return procedure for DG417LDY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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