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Analog Devices Inc./Maxim Integrated DG418AK/883B
- Part No.:
- DG418AK/883B
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-CDIP (0.300", 7.62mm)
- Datasheet:
-
DG418AK/883B.pdf
- Description:
- IC SW SPST-NOX1 35OHM 8CERDIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,768
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Product details
Overview
DG418AK/883B from Maxim Integrated is a military-grade, normally open (NO), single-pole/single-throw (SPST) analog switch optimized for precision signal routing in harsh environments. It features guaranteed 35Ω max on-resistance, <5nA off-leakage at +85°C, 175ns max turn-on time, ±4.5V to ±20V bipolar or +10V to +30V single-supply operation, and 2000V ESD tolerance per MIL-STD-3015.7 - deployed in guidance systems and military radios requiring rail-to-rail analog handling and TTL/CMOS logic compatibility.
For engineers reviewing the DG418AK/883B datasheet, DG418AK/883B pinout, DG418AK/883B application, or DG418AK/883B equivalent, this page delivers verified electrical parameters, MIL-qualified thermal performance (-55°C to +125°C), package-specific terminal mapping, and direct alternatives for high-reliability analog switching in defense and aerospace designs.
Technical Context
The DG418AK/883B implements a silicon-gate CMOS architecture with matched P- and N-channel MOSFETs to enable bidirectional conduction and rail-to-rail analog signal handling up to ±15.5V. Its control logic accepts TTL- or CMOS-level inputs referenced to VL, with internal clamping diodes protecting digital pins against overvoltage.
Guaranteed on-resistance matching (≤3Ω) and flatness (≤4Ω) are specified only under bipolar supply conditions, reflecting its design for precision instrumentation where channel-to-channel gain error must be minimized. The device is fabricated using a 44V process and qualified per MIL-STD-883B, including Method 5005 (temperature cycling) and Method 2019 (steady-state life test).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RDS(ON)) | 35Ω max at +25°C; ensures ≤0.35% gain error in 10kΩ load precision signal paths |
| On-Resistance Flatness | 4Ω max over full analog range; maintains consistent attenuation across ±15.5V input swing |
| Off-Leakage Current | <5nA at +85°C; prevents >1mV error in high-impedance sample-and-hold nodes |
| Turn-On/Off Time | 175ns / 145ns max; supports ≥5MHz switching in automated test equipment |
| Supply Range | ±4.5V to ±20V bipolar or +10V to +30V single; enables direct interface with legacy ±15V op-amp rails |
| ESD Tolerance | 2000V min per MIL-STD-3015.7; meets Level 2 HBM for board-level handling in defense assembly |
| Operating Temperature | -55°C to +125°C; qualified per MIL-STD-883B, Condition A (screening) and Method 1010 (burn-in) |
Pinout & Package
DG418AK/883B is supplied in an 8-pin CERDIP (ceramic dual in-line package) with hermetic seal and lead finish compliant with MIL-STD-1835. Package dimensions: 0.300" × 0.200", 0.100" lead pitch, 0.230" body height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Analog Drain (D) | Switch output terminal; connects to load or downstream circuit; bidirectional current path |
| 2 | No Internal Connection (N.C.) | Unbonded pad; must remain floating - no PCB trace or plane connection permitted |
| 3 | GND | Digital ground reference for logic inputs and VL supply; separate from analog return paths |
| 4 | V+ | Analog positive supply rail; must be decoupled locally; supports up to +30V in single-supply mode |
| 5 | VL | Logic supply input; set to +5V for TTL compatibility or tied to V+ for CMOS-level control |
| 6 | IN | Active-high logic control input; drives internal gate driver; compatible with 0.8V/2.4V TTL thresholds |
| 7 | V- | Analog negative supply rail; required for bipolar operation; supports down to -20V |
| 8 | S | Analog Source (normally open); connects to signal source when IN = HIGH; rail-to-rail capable |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed RDS(ON) match | ≤3Ω between channels - critical for multiplexer gain tracking in precision data acquisition |
| Rail-to-rail signal handling | Supports analog signals from V− to V+ - eliminates level-shifting in ±15V industrial sensor interfaces |
| Low charge injection | 10pC max - reduces voltage glitch in sample-and-hold circuits to <100µV with 10nF hold capacitor |
| MIL-STD-883B qualification | Includes screening per Methods 1010, 2019, 5005, and 3015.7 - required for flight-critical avionics use |
| TTL/CMOS logic compatibility | Accepts standard 5V logic levels without external level shifters - simplifies FPGA/microcontroller interfacing |
Applications
| Guidance & Control Systems | Military Radios |
|---|---|
|
Use Scenario: Signal routing between antenna diversity ports and RF front-end in airborne tactical radios operating across temperature extremes. IC Role / Device Role / Timing Role: SPST analog switch isolating receive paths during transmit bursts; enables fast, low-distortion RF signal gating. Use Value: 145ns tOFF ensures isolation within 200ns of TX enable, preventing receiver desensitization; hermetic CERDIP withstands vibration and humidity. |
Use Scenario: Channel selection in multi-band HF/VHF transceivers used in field-deployable command posts. IC Role / Device Role / Timing Role: Precision analog switch selecting between calibration references and antenna inputs during self-test sequences. Use Value: ≤5nA off-leakage at +125°C preserves reference integrity over full military temperature range; 2000V ESD protects against battlefield static discharge. |
| Sample-and-Hold Circuits | Test Equipment |
|
Use Scenario: Acquisition front-end in 16-bit automated test equipment capturing transient waveforms in aerospace subsystem validation. IC Role / Device Role / Timing Role: Low-charge-injection switch enabling accurate sampling of ±10V sensor outputs into high-impedance hold capacitors. Use Value: 10pC max Q limits hold-step error to <1LSB in 16-bit systems with 10nF hold cap; 35Ω RDS(ON) minimizes settling time. |
Use Scenario: Signal path configuration in modular PXI-based functional testers for missile guidance electronics. IC Role / Device Role / Timing Role: Reconfigurable analog switch matrix routing stimulus signals to DUT pins under microcontroller control. Use Value: Guaranteed 3Ω RDS(ON) match ensures ≤0.03% channel gain mismatch across 16-switch matrices; MIL-883B screening guarantees long-term parametric stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1419BRUZ | Single SPDT, 4.7Ω RDS(ON), −40°C to +125°C, SOIC-16; requires external logic for NO/NC inversion | Not qualified to MIL-STD-883B; lacks hermetic packaging and 2000V ESD rating | Preferred for commercial high-speed ATE where size and cost outweigh military reliability requirements |
| HI-508AJ | SPST NO, 45Ω RDS(ON), −55°C to +125°C, CERDIP-8; MIL-PRF-38535 Class K qualified | Higher on-resistance increases gain error; no guaranteed RFLAT(ON) or RDS(ON) match spec | Valid drop-in replacement only if 45Ω RDS(ON) and absence of flatness guarantee are acceptable in system budget |
Compared with DG418AK/883B, ADG1419BRUZ offers higher integration but no military qualification, while HI-508AJ matches the package and temperature range but sacrifices on-resistance performance and parameter guarantees critical for precision guidance signal chains.
Availability
DG418AK/883B is available at Aetrix Electronics and suitable for guidance systems, military radios, sample-and-hold circuits, and automated test equipment requiring stable component supply across extended temperature and lifecycle demands.
Supply support for DG418AK/883B 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 demanding industrial, automotive, and defense applications.
The DG418AK/883B belongs to Maxim's precision analog switch family engineered for military and aerospace signal routing - emphasizing guaranteed matching, low leakage, and full MIL-STD-883B compliance over commercial alternatives.
FAQ
What is the maximum analog signal voltage range supported by DG418AK/883B?
DG418AK/883B supports analog signals from V− to V+ across its full specified supply range: ±4.5V to ±20V bipolar or +10V to +30V single supply. With ±15V supplies, the guaranteed rail-to-rail range is ±15.5V. Operation beyond these limits risks exceeding absolute maximum ratings and may cause permanent damage.
Is DG418AK/883B pin-compatible with commercial-grade DG418 variants?
Yes - DG418AK/883B uses the same 8-pin CERDIP footprint and pinout as non-military DG418 variants (e.g., DG418DJ, DG418DY), including identical terminal assignments for D, S, V+, V−, IN, VL, GND, and N.C. However, layout must accommodate MIL-STD-883B screening requirements including hermetic seal clearance and thermal relief rules.
Does DG418AK/883B require external protection diodes for overvoltage handling?
No - DG418AK/883B includes internal clamping diodes on all analog and digital terminals. External diodes are optional and only recommended if power-supply sequencing cannot be controlled; adding them reduces usable analog range by ~1V but preserves RDS(ON) and leakage specs per Figure 1 in the datasheet.
What is the guaranteed on-resistance matching specification for DG418AK/883B?
DG418AK/883B guarantees ≤3Ω on-resistance matching between channels - a specification confirmed in the Electrical Characteristics table under "∆RDS(ON)" for bipolar supply conditions. This applies to the single SPST structure as a channel-to-channel consistency metric validated during MIL-STD-883B testing.
Can DG418AK/883B operate with unbalanced supplies such as +24V and −5V?
Yes - DG418AK/883B supports unbalanced supplies as long as the difference between V+ and V− does not exceed +44V and each rail stays within its absolute maximum rating (V+ ≤ +44V referenced to V−, GND ≤ +25V referenced to V−). This enables flexible biasing in hybrid power systems common in avionics racks.
DG418AK/883B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- 3Ohm (Max)
- Voltage - Supply, Single (V+):
- 10V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 175ns, 145ns
- -3db Bandwidth:
- -
- Charge Injection:
- 3pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-CERDIP
DG418AK/883B FAQ
1.How can I place an order for DG418AK/883B through Aetrix?
Please submit a Request for Quotation (RFQ) for DG418AK/883B 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 DG418AK/883B reliable?
The price and inventory of DG418AK/883B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG418AK/883B is usually 5 days.
3.What payment methods are accepted for DG418AK/883B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG418AK/883B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG418AK/883B?
DG418AK/883B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG418AK/883B 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 DG418AK/883B?
For technical support, including DG418AK/883B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG418AK/883B requirements.
6.How does Aetrix verify that DG418AK/883B is sourced from the original manufacturer or authorized distributors?
All DG418AK/883B 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 DG418AK/883B meets industry standards.
7.What is the process for return or replacement of DG418AK/883B?
All DG418AK/883B units undergo pre-shipment inspection (PSI). If there is an issue with DG418AK/883B, 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 DG418AK/883B part is unused and in its original packaging.
Return procedure for DG418AK/883B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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