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Analog Devices Inc./Maxim Integrated DG417LDY+
- Part No.:
- DG417LDY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG417LDY+.pdf
- Description:
- IC SWITCH SPST-NCX1 35OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,220
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Product details
Overview
DG417LDY+ from Maxim Integrated is a precision +3V logic-compatible SPST analog switch with normally closed (NC) configuration, 35Ω max on-resistance, <5nA off-leakage at +85°C, and rail-to-rail analog signal handling up to ±20V dual or +36V single supply - used in battery-operated test equipment for low-distortion signal routing.
For engineers reviewing the DG417LDY+ datasheet, DG417LDY+ pinout, DG417LDY+ application, or DG417LDY+ equivalent, key selection criteria include guaranteed RON matching (≤3Ω), break-before-make timing (1ns), charge injection (≤15pC), and SO-8 package compatibility with legacy DG417/DG418 footprints.
Technical Context
The DG417LDY+ implements a CMOS transmission-gate architecture with matched P/N channel pairs, enabling bidirectional conduction and rail-to-rail analog swing. Its digital input thresholds (VIL = 0.8V, VIH = 2.0V) ensure direct interface with +3V TTL/CMOS without level-shifting.
It operates across ±4.5V to ±20V dual supplies or +9V to +36V single supply, with power-supply sequencing-free startup - eliminating latchup risk during asymmetric power-up sequences common in portable instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RON) | 35Ω max at ±15V supplies - ensures minimal signal attenuation and gain error in precision gain-setting or multiplexing paths. |
| RON matching | 3Ω max between channels - critical for differential signal switching and matched filter banks where amplitude balance matters. |
| Off-leakage current | <5nA at +85°C - preserves accuracy in high-impedance sample-and-hold or sensor front-end circuits over temperature. |
| Charge injection | 15pC max - limits voltage glitch on sampled nodes, enabling sub-12-bit integrity in data acquisition systems. |
| Switching time (tON/tOFF) | 175ns/185ns max at ±15V - supports >1MHz multiplexed signal sampling in communications test gear. |
| Analog signal range | Rail-to-rail: (V− − 0.3V) to (V+ + 0.3V) - allows full utilization of supply rails for ±15V op-amp interfaces. |
| Logic compatibility | +3V TTL/CMOS: VIL ≤ 0.8V, VIH ≥ 2.0V - enables direct connection to microcontroller GPIOs without external biasing. |
Pinout & Package
Package: 8-pin SO (SOIC-N), 150 mil width, JEDEC MS-012AC compliant, rated for −40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 COM | Analog common terminal | Single-pole connection point; carries bidirectional analog signal between NC and internal switch path. |
| 2 N.C. | No connection | Unbonded die pad; must be left floating or tied to GND per layout best practice - no internal circuitry attached. |
| 3 GND | Digital logic ground reference | Reference for IN logic threshold; separate from analog supply grounds but requires low-impedance tie in mixed-signal layouts. |
| 4 V+ | Positive analog supply | Accepts +9V to +36V (single) or up to +20V (dual); powers analog channel and internal level-shifters. |
| 6 IN | Logic control input | Inverts function: logic high opens switch (NC → open), logic low closes it (NC → COM) - matches DG417L truth table. |
| 7 V− | Negative analog supply | Accepts −4.5V to −20V (dual); enables true bipolar signal handling and defines lower rail for RON flatness. |
| 8 NC | Normally closed analog terminal | Default-closed path to COM; opens only when IN = high - used for fail-safe or default-on signal routing. |
Key Features
| Feature | Design Value |
|---|---|
| +3V logic compatibility | VIH = 2.0V / VIL = 0.8V thresholds eliminate need for external level translators when interfacing with modern low-voltage MCUs. |
| Power-supply sequencing freedom | No required V+, VL, V− startup order - prevents latchup during uncontrolled power ramp in battery-backed systems. |
| Rail-to-rail analog capability | Supports signals from V− − 0.3V to V+ + 0.3V - preserves full dynamic range of ±12V sensor outputs or audio line drivers. |
| Guaranteed RON flatness | 4Ω max variation across signal range - maintains consistent gain and THD in variable-gain amplifier or programmable filter applications. |
| Low charge injection | 15pC max - reduces hold-step error in 12-bit+ SAR ADC sample-and-hold stages without additional correction circuitry. |
Applications
| Test Equipment Signal Routing | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Multiplexing multiple sensor inputs into a shared ADC channel in portable calibration tools. IC Role / Device Role / Timing Role: Normally closed SPST switch isolating unused sensors to prevent loading and crosstalk during measurement cycles. Use Value: 35Ω RON and <5nA leakage preserve DC accuracy across −40°C to +85°C operating range without recalibration. | Use Scenario: Enabling/disabling power to RF transceiver modules in field-deployed environmental monitors. IC Role / Device Role / Timing Role: Low-leakage analog switch acting as a precision load switch controlled by MCU GPIO. Use Value: <5nA off-leakage extends battery life beyond 5 years in sleep mode; +3V logic compatibility eliminates level-shifter BOM cost. |
| Audio Signal Path Selection | Guidance System Sensor Interface |
Use Scenario: Routing line-level audio between microphone preamps, DAC outputs, and headphone drivers in compact audio analyzers. IC Role / Device Role / Timing Role: Bidirectional analog switch providing transparent signal path with minimal THD (0.002%) and wide bandwidth. Use Value: Rail-to-rail operation handles ±12V audio rails; 15pC charge injection prevents audible pop/click during mute transitions. | Use Scenario: Isolating inertial measurement unit (IMU) outputs from flight controller ADC during self-test sequences. IC Role / Device Role / Timing Role: Fail-safe NC switch ensuring IMU remains connected unless actively commanded open by safety processor. Use Value: Guaranteed 1ns break-before-make timing prevents short-circuit transients; −40°C to +85°C rating matches aerospace thermal requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617EUA+ | 8-pin µMAX package; 30Ω RON; requires VLOGIC pin for 1.8V–5.5V logic compatibility. | Lower RON but no native +3V logic support - needs external VLOGIC biasing for 3V MCU interface. | Select when footprint space is constrained and logic voltage flexibility outweighs SO-8 compatibility. |
| ADG1419BRMZ | SPDT configuration; 1.5Ω RON; ±15V supply; 0.2pC charge injection. | Superior performance but higher cost and different topology - not drop-in for NC-only SPST use cases. | Choose only when ultra-low RON and charge injection are mandatory, and SPDT functionality is acceptable. |
Compared with MAX4617EUA+ and ADG1419BRMZ, the DG417LDY+ provides optimal balance of SO-8 footprint compatibility, guaranteed +3V logic thresholds, and robust −40°C to +85°C operation - making it the preferred choice for cost-sensitive, space-constrained industrial test equipment requiring proven reliability.
Availability
DG417LDY+ is available at Aetrix Electronics and suitable for test equipment, battery-powered data loggers, and guidance system interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG417LDY+ 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 industrial, medical, and communications applications.
The DG417LDY+ belongs to Maxim's legacy DG417L family of logic-compatible analog switches - engineered specifically for high-fidelity signal routing in portable and ruggedized instrumentation where supply flexibility and temperature stability are critical.
FAQ
What is the maximum supply voltage rating for DG417LDY+?
The DG417LDY+ supports dual supplies from ±4.5V to ±20V and single supplies from +9V to +36V. Absolute maximum ratings specify V+ to V− ≤ 44V and V+ to GND ≤ 25V. Exceeding these may cause permanent damage. Operation at ±20V or +36V is fully characterized and supported per the datasheet's electrical characteristics tables.
Does DG417LDY+ require power-supply sequencing during startup?
No, DG417LDY+ features power-supply sequencing-free operation. Unlike earlier DG417 variants, it eliminates the need for strict V+, VL, V− ramp order - preventing latchup under arbitrary power-up conditions. This simplifies power design in battery-operated systems where supply rails may rise at different rates.
What is the function of Pin 2 (N.C.) on DG417LDY+?
Pin 2 on DG417LDY+ is labeled N.C. (No Connection) and is not internally bonded. It must remain unconnected - neither tied to GND nor V+ - to avoid parasitic coupling or ESD path disruption. The datasheet explicitly states "N.C. = NO CONNECT", and no functional circuitry connects to this pin.
How does DG417LDY+ differ from the original DG417?
DG417LDY+ improves upon the legacy DG417 with +3V logic compatibility (VIH = 2.0V), power-supply sequencing freedom, and tighter RON matching (3Ω vs. unspecified). It retains pinout and electrical compatibility but adds guaranteed performance across −40°C to +85°C - making DG417LDY+ a direct plug-in upgrade per Maxim's datasheet.
Is DG417LDY+ suitable for audio signal routing applications?
Yes, DG417LDY+ is well-suited for audio routing due to its 0.002% THD, rail-to-rail analog handling, 15pC charge injection, and low crosstalk (−86dB). Its 35Ω RON introduces negligible insertion loss in line-level paths, and the SO-8 package supports standard audio PCB layouts - confirmed in Maxim's Applications Information section.
DG417LDY+ 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:
- 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+ FAQ
1.How can I place an order for DG417LDY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG417LDY+ 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+ reliable?
The price and inventory of DG417LDY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG417LDY+ is usually 5 days.
3.What payment methods are accepted for DG417LDY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG417LDY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG417LDY+?
DG417LDY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG417LDY+ 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+?
For technical support, including DG417LDY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG417LDY+ requirements.
6.How does Aetrix verify that DG417LDY+ is sourced from the original manufacturer or authorized distributors?
All DG417LDY+ 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+ meets industry standards.
7.What is the process for return or replacement of DG417LDY+?
All DG417LDY+ units undergo pre-shipment inspection (PSI). If there is an issue with DG417LDY+, 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+ part is unused and in its original packaging.
Return procedure for DG417LDY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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