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Analog Devices Inc./Maxim Integrated DG442AK/883B
- Part No.:
- DG442AK/883B
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-CDIP (0.300", 7.62mm)
- Datasheet:
-
DG442AK/883B.pdf
- Description:
- IC SWITCH SPST-NOX4 85OHM 16CDIP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
DG442AK/883B from Maxim Integrated is a quad, normally-open (NO) SPST analog switch designed for precision signal routing in high-reliability military and aerospace systems. It features 85Ω max on-resistance, <5nA off-leakage at +85°C, 10pC max charge injection, rail-to-rail analog signal handling (±15.5V), and operates from ±4.5V to ±20V bipolar supplies or +10V to +30V single supply. Its CERDIP package supports -55°C to +125°C operation per MIL-STD-883B.
For engineers reviewing the DG442AK/883B datasheet, DG442AK/883B pinout, DG442AK/883B application, or DG442AK/883B equivalent, key selection criteria include guaranteed on-resistance matching (4Ω max between channels), on-resistance flatness (9Ω max over signal range), ESD tolerance (2000V min), low power consumption (1.65mW), and compatibility with TTL/CMOS logic levels.
Technical Context
The DG442AK/883B implements four independent, digitally controlled SPST switches using Maxim's 44V silicon-gate process. Each channel guarantees matched on-resistance (≤4Ω) and flat on-resistance (≤9Ω) across the full analog signal range under bipolar supply conditions.
It supports both unipolar (+10V to +30V) and bipolar (±4.5V to ±20V) operation, with rail-to-rail signal switching, TTL/CMOS-compatible digital inputs, and internal clamp diodes protecting S/D terminals against overvoltage. Switching times are ≤250ns tON and ≤170ns tOFF at ±15V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (rDS(ON)) | 85Ω max - ensures minimal signal attenuation and voltage drop in precision analog paths |
| On-Resistance Match | 4Ω max - enables accurate channel-to-channel signal balancing in multiplexer or gain-switching circuits |
| On-Resistance Flatness | 9Ω max - maintains consistent gain and linearity across full ±15.5V analog input range |
| Charge Injection | 10pC max - reduces sampling error and pedestal distortion in sample-and-hold and ADC front-end applications |
| Off-Leakage Current | <5nA at +85°C - preserves signal integrity in high-impedance sensor interfaces and battery-powered systems |
| Supply Range | ±4.5V to ±20V bipolar or +10V to +30V single - supports wide dynamic range and legacy system compatibility |
| ESD Tolerance | 2000V min per Method 3015.7 - provides robust handling during assembly and field deployment |
Pinout & Package
Package: 16-pin CERDIP (J16-3), hermetically sealed ceramic dual-in-line, qualified per MIL-STD-883B for high-reliability environments. Exposed substrate connection via V+ pin (Pin 13).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 (Pins 1, 2, 14, 15) | Digital control input | TTL/CMOS-compatible logic inputs controlling respective SPST switch state (high = ON for DG442) |
| D1–D4 (Pins 16, 13, 5, 8) | Analog drain terminal | Switch output node; bidirectional conduction path when enabled |
| S1–S4 (Pins 3, 12, 4, 9) | Analog source terminal | Switch input node; connects to signal source or load depending on routing topology |
| V+ (Pin 13) | Positive supply | Bias for internal circuitry and substrate; must be connected for proper operation and latch-up immunity |
| V- (Pin 4) | Negative supply | Required for bipolar operation; sets lower rail for analog signal range and logic reference |
| GND (Pin 5) | Ground reference | Logic ground return; separate from analog signal ground in mixed-signal layouts |
| N.C. (Pin 10) | No connect | Internally unconnected; must remain floating or tied to V+ per design guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | ±15.5V range with ±16.5V supplies - enables full utilization of ADC/DAC dynamic range without level-shifting |
| Guaranteed rDS(ON) match | ≤4Ω between all four channels - critical for precision gain-setting, calibration, and differential signal routing |
| Low charge injection | 10pC max - minimizes voltage glitch and settling time in sampling circuits and fast-switching instrumentation |
| MIL-STD-883B qualified | Tested per Method 3015.7 (ESD), Method 2003 (thermal shock), Method 2015 (hermeticity) - ensures reliability in avionics and defense platforms |
| Bipolar/unipolar supply flexibility | Operates from ±4.5V to ±20V or +10V to +30V - simplifies integration into legacy and new designs with varying power architectures |
Applications
| Guidance & Control Systems | Military Radios |
|---|---|
|
Use Scenario: Signal routing in inertial measurement unit (IMU) analog front-end, selecting between gyroscope and accelerometer sensor outputs before conditioning. IC Role / Device Role / Timing Role: Quad SPST switch enabling software-configurable analog path selection with sub-250ns switching and minimal crosstalk. Use Value: Maintains signal fidelity across -55°C to +125°C with <5nA leakage, ensuring stable biasing and calibration in extreme thermal environments. |
Use Scenario: Antenna diversity switching and RF front-end signal conditioning in secure HF/VHF transceivers. IC Role / Device Role / Timing Role: High-isolation analog switch isolating receive paths during transmit bursts and routing IF signals to different demodulators. Use Value: 60dB crosstalk rejection and -100dB off-isolation prevent signal coupling and spurious emissions in multi-channel radio architectures. |
| Heads-Up Displays (HUD) | Test Equipment |
|
Use Scenario: Pixel-level brightness control and video signal multiplexing in ruggedized cockpit HUDs with analog RGB inputs. IC Role / Device Role / Timing Role: Precision analog switch managing gamma correction paths and display driver signal routing under vibration and thermal cycling. Use Value: 10pC charge injection prevents visible pixel artifacts; 85Ω rDS(ON) ensures consistent luminance across full temperature range. |
Use Scenario: Automated test fixture signal path configuration for semiconductor parametric testing and functional validation. IC Role / Device Role / Timing Role: Channel-select switch in programmable load/sense networks, enabling rapid reconfiguration of DUT interface topologies. Use Value: Guaranteed 4Ω rDS(ON) match ensures measurement repeatability across channels; 2000V ESD rating protects against handler-induced damage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG442BRZ | 80Ω rDS(ON) typ, 25nA max off-leakage at +85°C, SOIC-16, commercial temp (−40°C to +85°C) | Lacks MIL-STD-883B qualification and extended −55°C to +125°C range; not suitable for flight-critical hardware | Select ADG442BRZ only for industrial test equipment where cost and lead time outweigh extended environmental requirements. |
| MAX4618ESA+ | 45Ω rDS(ON) typ, 100pC charge injection, ±15V supply max, SOIC-16, −40°C to +85°C | Higher charge injection degrades sample-and-hold accuracy; narrower supply range limits headroom in high-voltage systems | Choose MAX4618ESA+ only when lower on-resistance is prioritized over precision timing and wide-temperature stability. |
Compared with DG442AK/883B, ADG442BRZ offers lower cost but sacrifices military-grade reliability and temperature margin, while MAX4618ESA+ improves on-resistance at the expense of charge injection and environmental robustness-making DG442AK/883B the sole choice for mission-critical analog routing where parameter guarantees across extreme conditions are non-negotiable.
Availability
DG442AK/883B is available at Aetrix Electronics and suitable for guidance and control systems, military radios, heads-up displays, and high-reliability test equipment requiring stable component supply across extended temperature and long lifecycle programs.
Supply support for DG442AK/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, industrial, and communications markets, with emphasis on performance under stress and long-term parametric stability.
The DG442AK/883B belongs to Maxim's enhanced DG441/DG442 family of quad SPST analog switches, engineered specifically for military and space applications demanding guaranteed on-resistance matching, ultra-low leakage, and full MIL-STD-883B compliance.
FAQ
What is the operating temperature range of the DG442AK/883B?
The DG442AK/883B is specified for operation from -55°C to +125°C and is fully tested and qualified per MIL-STD-883B, including thermal shock (Method 2003) and hermeticity (Method 2015). This extended range ensures reliable performance in avionics, missile guidance, and space-qualified electronics where ambient conditions exceed commercial or industrial limits. The DG442AK/883B maintains guaranteed parameters-including <5nA off-leakage at +85°C and 4Ω on-resistance match-across this full range.
Does the DG442AK/883B support single-supply operation?
Yes, the DG442AK/883B supports single-supply operation from +10V to +30V, with V- connected to ground. In this configuration, the analog signal range extends from 0V to V+ − 0.5V (e.g., 0V to +29.5V at +30V supply), preserving rail-to-rail capability. However, on-resistance matching (4Ω max) and flatness (9Ω max) are guaranteed only under bipolar supply conditions per datasheet Note 4. The DG442AK/883B retains TTL/CMOS logic compatibility and low charge injection (10pC max) in single-supply mode.
What is the significance of the "/883B" suffix in DG442AK/883B?
The "/883B" suffix indicates full compliance with MIL-STD-883B, the U.S. Department of Defense standard for microcircuit testing and qualification. This includes rigorous screening for mechanical shock, vibration, temperature cycling, hermeticity, and ESD (Method 3015.7). Unlike commercial variants (e.g., DG442CY), the DG442AK/883B undergoes lot-by-lot testing for parameters like off-leakage and on-resistance match across temperature, making it suitable for Class H and Class K applications in defense and space systems. The DG442AK/883B is not offered in lead-free packaging per datasheet note.
How does the DG442AK/883B differ from the standard DG442AK?
The DG442AK/883B is the MIL-STD-883B-qualified version of the DG442AK. While both share identical electrical specifications (85Ω rDS(ON), 10pC charge injection, ±4.5V to ±20V operation), the /883B variant adds mandatory screening per Methods 2003 (thermal shock), 2015 (hermeticity), and 3015.7 (ESD), plus lot acceptance testing for parametric stability across temperature extremes. The DG442AK/883B is supplied in CERDIP packaging only and is not available in lead-free form-unlike the standard DG442AK, which may be offered in multiple packages and Pb-free options.
Can the DG442AK/883B be used in place of the DG441AK/883B?
No-the DG442AK/883B is a normally-open (NO) switch, while the DG441AK/883B is normally-closed (NC); their logic polarity is inverted. Driving the same control signal to both will produce opposite switching states. Though pinout, package, and most electrical specs (rDS(ON), leakage, supply range) are identical, substituting one for the other requires redesigning the control logic and verifying signal path integrity. The DG442AK/883B and DG441AK/883B are complementary devices-not drop-in replacements-and must be selected based on required default state in fail-safe or power-loss scenarios.
DG442AK/883B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- 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, 170ns
- -3db Bandwidth:
- -
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 4pF, 4pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -100dB @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-CDIP
DG442AK/883B FAQ
1.How can I place an order for DG442AK/883B through Aetrix?
Please submit a Request for Quotation (RFQ) for DG442AK/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 DG442AK/883B reliable?
The price and inventory of DG442AK/883B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG442AK/883B is usually 5 days.
3.What payment methods are accepted for DG442AK/883B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG442AK/883B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG442AK/883B?
DG442AK/883B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG442AK/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 DG442AK/883B?
For technical support, including DG442AK/883B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG442AK/883B requirements.
6.How does Aetrix verify that DG442AK/883B is sourced from the original manufacturer or authorized distributors?
All DG442AK/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 DG442AK/883B meets industry standards.
7.What is the process for return or replacement of DG442AK/883B?
All DG442AK/883B units undergo pre-shipment inspection (PSI). If there is an issue with DG442AK/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 DG442AK/883B part is unused and in its original packaging.
Return procedure for DG442AK/883B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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