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Analog Devices Inc./Maxim Integrated DG419AK/883B
- Part No.:
- DG419AK/883B
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-CDIP (0.300", 7.62mm)
- Datasheet:
-
DG419AK/883B.pdf
- Description:
- IC SWITCH SPDT X 1 30OHM 8CERDIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,773
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Product details
Overview
DG419AK/883B from Maxim Integrated is a military-grade, single-pole/double-throw (SPDT) CMOS analog switch with normally closed (S1) and normally open (S2) paths, 35Ω max on-resistance, <5nA off-leakage at +85°C, and guaranteed 3Ω max on-resistance matching between channels - designed for precision signal routing in high-reliability guidance, test, and comms systems.
For engineers reviewing the DG419AK/883B datasheet, DG419AK/883B pinout, DG419AK/883B application, or DG419AK/883B equivalent, key selection criteria include bipolar ±4.5V to ±20V or single +10V to +30V operation, rail-to-rail analog handling, TTL/CMOS logic compatibility, and MIL-STD-883B qualification for extended temperature (-55°C to +125°C) and ESD robustness (2000V min).
Technical Context
The DG419AK/883B implements a silicon-gate CMOS transmission gate architecture optimized for low charge injection (10pC max) and flat on-resistance over signal range (4Ω max), enabling accurate sampling in sample-and-hold circuits without distortion. Its dual-supply design supports true rail-to-rail analog swing while maintaining sub-175ns turn-on time and break-before-make timing (5ns–13ns).
Logic control is referenced to VL (typically +5V), independent of analog supply rails, allowing mixed-voltage system integration. Internal clamping diodes protect S/D terminals against overvoltage, and the substrate is tied to V+ to minimize leakage drift across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RDS(ON)) | 35Ω max at +25°C - ensures minimal signal attenuation and gain error in precision instrumentation paths |
| On-Resistance Match | 3Ω max between S1 and S2 channels - critical for balanced differential switching and channel calibration |
| Off-Leakage Current | <5nA at +85°C - preserves accuracy in high-impedance sample-and-hold and sensor front-ends |
| Charge Injection | 10pC max - limits voltage glitch on hold capacitors, enabling ≤12-bit settling in data acquisition |
| Supply Range | Bipolar ±4.5V to ±20V or single +10V to +30V - supports wide dynamic range signal conditioning without level-shifting |
| Switching Time (tON/tOFF) | <175ns / <145ns - enables multiplexing at >1MHz rates in automated test equipment |
| ESD Tolerance | 2000V min per MIL-STD-3015.7 - ensures survivability during handling and deployment in fielded military radios |
Pinout & Package
DG419AK/883B is packaged in an 8-pin CERDIP (ceramic dual in-line package) with hermetic sealing and lead finish compliant with MIL-STD-883B requirements for space and defense applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | S1 (Source 1) | Normally closed analog path - connects to D when IN = 0; used for default signal continuity |
| 2 | S2 (Source 2) | Normally open analog path - connects to D when IN = 1; enables active signal selection |
| 3 | GND | Logic ground reference for VL and digital inputs - must be isolated from analog return to prevent noise coupling |
| 4 | V+ | Analog positive supply - sets upper rail for bidirectional conduction; substrate tied internally |
| 5 | VL | Logic supply input - accepts +5V for TTL compatibility or V+ for CMOS-level control |
| 6 | IN | Digital control input - active-high logic selects S2 path; inverted logic sense per device truth table |
| 7 | V− | Analog negative supply - defines lower rail; required for bipolar operation and rail-to-rail swing |
| 8 | D (Drain) | Common analog terminal - output node shared by both SPDT paths; connects to load or ADC input |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports full V− to V+ swing without clipping - eliminates need for external biasing in ±15V systems |
| Guaranteed RFLAT(ON) | 4Ω max variation across signal range - maintains consistent gain and THD in audio and comms signal chains |
| Low power consumption | 35µW max - enables battery operation in portable test gear and field-deployable guidance modules |
| TTL/CMOS logic compatibility | Accepts 0.8V/2.4V thresholds with VL = 5V - simplifies interface to FPGAs, microcontrollers, and legacy logic |
| MIL-STD-883B qualified | Includes screening for temperature cycling, mechanical shock, and hermeticity - meets Class B reliability for flight-critical subsystems |
Applications
| Guidance & Control Systems | Automated Test Equipment |
|---|---|
Use Scenario: Signal routing between inertial sensor outputs and redundant ADC channels in missile navigation units. IC Role / Device Role / Timing Role: SPDT switch providing fail-safe path selection with break-before-make timing to prevent short-circuit faults. Use Value: 3Ω on-resistance match ensures identical gain scaling across dual ADC paths, preserving sensor fusion accuracy. |
Use Scenario: Multiplexing multiple DUT signals into a single high-speed digitizer in ATE rack systems. IC Role / Device Role / Timing Role: Precision analog switch enabling >1MHz channel scan rates with sub-175ns switching and low crosstalk. Use Value: 85dB crosstalk rejection prevents measurement contamination between adjacent test channels. |
| Military Radios | Sample-and-Hold Circuits |
Use Scenario: Antenna diversity switching and RF front-end signal conditioning in manpack and vehicular radios. IC Role / Device Role / Timing Role: High-isolation SPDT switch selecting between receive paths while rejecting out-of-band interference. Use Value: 68dB off-isolation rejection ratio suppresses LO feedthrough and adjacent-channel interference. |
Use Scenario: Sampling analog sensor outputs before conversion in precision data loggers for environmental monitoring. IC Role / Device Role / Timing Role: Low-charge-injection switch holding sampled voltage on capacitor with minimal droop or step error. Use Value: 10pC max charge injection limits hold-step error to <1LSB in 12-bit systems with 10nF hold capacitors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1419BRUZ | Lower RDS(ON) (1.3Ω), but only rated to +125°C industrial grade; no MIL-STD-883B qualification | Suitable for commercial test equipment, not flight-qualified systems | Select if higher bandwidth and lower on-resistance are prioritized over radiation tolerance and extended temp screening |
| TS5A23157DCUR | Single-supply only (+1.65V to +5.5V); 0.9Ω RDS(ON); no bipolar support or high-voltage rating | Targeted at low-voltage portable electronics, not military comms or guidance hardware | Choose only for battery-powered consumer devices requiring ultra-low voltage operation |
Compared with ADG1419BRUZ and TS5A23157DCUR, DG419AK/883B uniquely delivers MIL-qualified reliability, bipolar ±20V capability, and guaranteed channel matching - making it irreplaceable in safety-critical analog signal routing where supply flexibility and parametric consistency outweigh raw on-resistance minimization.
Availability
DG419AK/883B is available at Aetrix Electronics and suitable for guidance and control systems, automated test equipment, and military radio platforms requiring stable component supply under extended temperature and radiation-hardened conditions.
Supply support for DG419AK/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 precision analog, mixed-signal, and high-reliability ICs for aerospace, defense, and industrial markets - emphasizing parametric guarantees and ruggedized packaging.
DG419AK/883B belongs to Maxim's legacy high-performance analog switch family, engineered specifically for military and space applications demanding guaranteed matching, low leakage, and MIL-STD-883B compliance.
FAQ
What is the operating temperature range for DG419AK/883B?
DG419AK/883B is qualified for -55°C to +125°C operation per MIL-STD-883B, with full electrical performance guaranteed across this range. Off-leakage remains below 5nA at +85°C and is characterized to exceed 100nA only beyond +125°C - ensuring stability in avionics and vehicle-mounted systems.
Does DG419AK/883B support single-supply operation?
Yes, DG419AK/883B operates from a single +10V to +30V supply (with V− tied to ground). In this mode, analog signal range is 0V to V+, and logic inputs remain compatible with +5V VL. However, on-resistance matching (3Ω max) and flatness (4Ω max) are guaranteed only under bipolar supply conditions.
What is the maximum analog signal voltage DG419AK/883B can handle?
DG419AK/883B supports rail-to-rail analog signals from V− to V+, with absolute maximum ratings of V+ ≤ 44V above V−. For example, with ±15V supplies, the full ±15V signal range is supported; with +24V/V− = 0V, the range is 0V to +24V - enabling direct interfacing with sensors and DACs without attenuation.
How does DG419AK/883B achieve low charge injection?
DG419AK/883B uses matched transistor geometry and optimized gate drive timing to limit charge injection to 10pC max. This value is measured with ±15V supplies and ±10V analog signals, directly enabling sub-1LSB hold-step error in 12-bit sample-and-hold circuits using 10nF capacitors - a key requirement in precision data acquisition.
Is DG419AK/883B pin-compatible with standard DG419 variants?
Yes, DG419AK/883B shares identical 8-pin CERDIP pinout and logic behavior with non-military DG419 variants (e.g., DG419DJ, DG419CY), including S1/S2/D/GND/V+/VL/IN/V− assignments and truth table. However, only DG419AK/883B undergoes MIL-STD-883B screening - PCB layout may be reused, but qualification is not transferable.
DG419AK/883B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 30Ohm
- 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
DG419AK/883B FAQ
1.How can I place an order for DG419AK/883B through Aetrix?
Please submit a Request for Quotation (RFQ) for DG419AK/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 DG419AK/883B reliable?
The price and inventory of DG419AK/883B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG419AK/883B is usually 5 days.
3.What payment methods are accepted for DG419AK/883B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG419AK/883B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG419AK/883B?
DG419AK/883B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG419AK/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 DG419AK/883B?
For technical support, including DG419AK/883B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG419AK/883B requirements.
6.How does Aetrix verify that DG419AK/883B is sourced from the original manufacturer or authorized distributors?
All DG419AK/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 DG419AK/883B meets industry standards.
7.What is the process for return or replacement of DG419AK/883B?
All DG419AK/883B units undergo pre-shipment inspection (PSI). If there is an issue with DG419AK/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 DG419AK/883B part is unused and in its original packaging.
Return procedure for DG419AK/883B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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