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Analog Devices Inc./Maxim Integrated DG508AAK/883B
- Part No.:
- DG508AAK/883B
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-CDIP (0.300", 7.62mm)
- Datasheet:
-
DG508AAK/883B.pdf
- Description:
- IC MUX 8:1 400OHM 16CDIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,112
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Product details
Overview
DG508AAK/883B from Maxim Integrated is a monolithic CMOS 8-channel single-ended analog multiplexer with break-before-make switching, ±4.5V to ±18V dual-supply operation, 500Ω typical on-resistance at ±15V, and -55°C to +125°C military-grade temperature range in 16-pin CERDIP package. It routes analog signals in precision data-acquisition systems where channel isolation and latchup immunity are critical.
For engineers reviewing the DG508AAK/883B datasheet, DG508AAK/883B pinout, DG508AAK/883B application, or DG508AAK/883B equivalent, key selection criteria include guaranteed break-before-make timing (0.2μs), sub-1nA off-leakage at ±10V, symmetrical bidirectional signal handling, TTL/CMOS-compatible logic inputs, and continuous operation across extended supply voltages without latchup.
Technical Context
The DG508AAK/883B implements a fully decoded 3-bit address logic (A0–A2) controlling eight independent analog switches between S1–S8 and common D terminals. Its CMOS architecture ensures symmetrical conduction and low charge injection (<1pC), enabling accurate sampling in high-resolution ADC front-ends.
Break-before-make switching is hardware-guaranteed via internal timing control, eliminating transient short-circuits during channel transitions. The device operates with true rail-to-rail analog signal swing (±15V) and maintains stable RDS(ON) over temperature due to matched transistor design in the monolithic die.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V - Supports full-scale bipolar sensor outputs and industrial process signals without clipping. |
| Drain-Source On-Resistance | 500Ω typ - Enables <1 LSB error in 12-bit systems with 1kΩ source impedance. |
| Break-Before-Make Interval | 0.2μs - Prevents momentary channel-to-channel crosstalk during address changes. |
| Off-Leakage Current | ±50nA max at ±10V - Limits voltage error to <50μV across 1MΩ input impedance. |
| Enable Turn-On/Off Time | 0.4μs / 0.2μs - Allows multiplexing rates up to 1MHz in time-division systems. |
| Supply Voltage Range | ±4.5V to ±18V - Compatible with legacy ±5V, ±12V, and ±15V industrial power rails. |
| Operating Temperature | -55°C to +125°C - Qualified per MIL-PRF-38535 Class B for aerospace and downhole applications. |
Pinout & Package
Package: 16-pin CERDIP (J16-3), hermetically sealed ceramic dual-in-line, RoHS-compliant per MIL-STD-750 Test Method 2054.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15, 16 | A0, A1, A2 | 3-bit binary address inputs selecting one of eight analog channels (S1–S8 → D). |
| 2 | EN | Active-high enable; disables all switches when low, reducing supply current to standby levels. |
| 3 | V− | Negative supply rail; sets lower analog signal limit and bias point for internal CMOS switches. |
| 4–7 | S1–S4 | Bidirectional analog inputs/outputs; connect to sensors, transducers, or signal sources. |
| 8 | D | Common analog output/input terminal; routed to selected Sx channel when enabled. |
| 9–12 | S8–S5 | Bidirectional analog inputs/outputs; continuation of channel set (S5–S8) for full 8-channel coverage. |
| 13 | V+ | Positive supply rail; sets upper analog signal limit and powers internal decode logic. |
| 14 | GND | Digital ground reference; decoupled separately from analog return paths to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Latchup-proof construction | Guaranteed no latchup even with input signals present during power-off - eliminates system reset requirements in hot-swap environments. |
| Symmetrical, bidirectional operation | Identical on-resistance and leakage in either signal direction - supports mux/demux and signal routing flexibility without polarity constraints. |
| TTL/CMOS-compatible logic inputs | Accepts 0.8V/2.4V thresholds and draws <30μA - interfaces directly with microcontrollers, FPGAs, and legacy logic without level-shifting. |
| Low power consumption | 0.02mA supply current in standby - extends battery life in portable instrumentation and reduces thermal load in dense PCB layouts. |
| Plug-in upgrade for industry-standard DG508A | Pin- and function-compatible replacement with faster enable timing and lower leakage - enables drop-in reliability enhancement in legacy designs. |
Applications
| Avionics Signal Routing | High-Voltage Data Acquisition |
|---|---|
|
Use Scenario: Routing multiple sensor outputs (pitot-static, gyro, accelerometer) to a shared ADC in aircraft HUD systems under extreme thermal cycling. IC Role / Device Role / Timing Role: Analog multiplexer providing channel selection with guaranteed break-before-make to prevent transient shorts between dissimilar sensor domains. Use Value: -55°C to +125°C operation and latchup immunity ensure uninterrupted signal integrity during rapid altitude and temperature changes. |
Use Scenario: Sampling ±10V industrial process signals (4–20mA loop derivatives, thermocouple amplifiers) in PLC I/O modules. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential acquisition across 8 channels with minimal offset drift and leakage-induced gain error. Use Value: 500Ω RDS(ON) and ±50nA off-leakage maintain <0.05% gain accuracy across 12-bit measurement ranges. |
| Military Telemetry Systems | Downhole Oil & Gas Instrumentation |
|
Use Scenario: Multiplexing telemetry data from multiple RF receivers and inertial navigation units in guided munitions with strict EMI and radiation tolerance. IC Role / Device Role / Timing Role: Radiation-hardened analog switch performing channel selection under high-G shock and wide supply variation (±4.5V to ±18V). Use Value: CERDIP packaging and MIL-PRF-38535 qualification ensure survivability in launch vibration and neutron flux environments. |
Use Scenario: Conditioning and routing sensor outputs (pressure, temperature, gamma detectors) in borehole logging tools operating at 175°C ambient. IC Role / Device Role / Timing Role: High-reliability analog multiplexer enabling sequential sensor readout while maintaining isolation between high-voltage sensor excitation and low-level analog returns. Use Value: Guaranteed operation to +125°C with <1pC charge injection minimizes settling error in high-impedance sensor front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX338ACPP+ | Single-supply 5V operation only; 100Ω RDS(ON); 0.1pC charge injection; SOIC-16 package. | Optimized for low-voltage portable systems; lacks extended temperature and dual-supply flexibility. | Select for battery-powered 5V designs requiring ultra-low charge injection - not suitable for ±15V or -55°C operation. |
| ADG508AKRZ-REEL7 | ±15V rated; 400Ω RDS(ON); -40°C to +85°C; RoHS-compliant SOIC-16; no MIL-spec qualification. | Commercial/industrial grade; lower cost but unqualified for aerospace or defense deployment. | Select for cost-sensitive industrial DAQ where MIL-PRF-38535 compliance is not required. |
Compared with MAX338ACPP+ and ADG508AKRZ-REEL7, the DG508AAK/883B uniquely delivers military-grade temperature range, CERDIP hermeticity, and guaranteed break-before-make timing - making it the only option qualified for avionics and downhole telemetry where failure modes must be eliminated by design.
Availability
DG508AAK/883B is available at Aetrix Electronics and suitable for avionics signal routing, high-voltage data acquisition, military telemetry systems, and downhole oil & gas instrumentation requiring stable component supply across extended temperature and radiation environments.
Supply support for DG508AAK/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 and mixed-signal ICs for demanding industrial, automotive, and aerospace applications.
The DG508AAK/883B belongs to Maxim's precision analog multiplexer product line, engineered specifically for high-reliability signal routing in harsh-environment systems where latchup immunity, wide supply range, and guaranteed switching behavior are non-negotiable.
FAQ
What is the absolute maximum analog signal voltage range supported by the DG508AAK/883B?
The DG508AAK/883B supports analog signals from V− to V+, with absolute maximum ratings of -2V to (V+ + 2V) on any analog terminal. At ±15V supplies, this allows continuous operation with ±15V analog signals. Exceeding these limits risks clamping diode conduction and potential damage if current exceeds 20mA.
Does the DG508AAK/883B require external pull-up or pull-down resistors on its address or enable pins?
No, the DG508AAK/883B does not require external biasing on A0–A2 or EN. Its TTL/CMOS-compatible inputs draw less than 30μA and recognize 0.8V as logic low and 2.4V as logic high. Direct connection to FPGA GPIO or microcontroller outputs is sufficient without additional resistors.
How is break-before-make timing guaranteed in the DG508AAK/883B, and what is its value?
The DG508AAK/883B guarantees a 0.2μs break-before-make interval through internal timing circuitry - confirmed in the datasheet's Figure 3 test circuit and Table 1a truth table. This hardware-enforced delay prevents simultaneous conduction between channels during address transitions, eliminating signal shorting.
Is the DG508AAK/883B pin-compatible with standard DG508A devices from other manufacturers?
Yes, the DG508AAK/883B is a plug-in upgrade for industry-standard DG508A parts, sharing identical pinout, function, and footprint in the 16-pin CERDIP package. It improves upon legacy versions with faster enable timing, lower leakage, and extended temperature qualification - no PCB redesign is needed.
What is the maximum continuous current rating per analog switch terminal (Sx or D) in the DG508AAK/883B?
The DG508AAK/883B specifies a continuous current rating of 20mA per analog switch terminal (S1–S8 or D). Peak pulsed current is 40mA at 1ms width and ≤10% duty cycle. Exceeding these limits risks thermal overstress or long-term parameter shift, especially at high ambient temperatures.
DG508AAK/883B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 400Ohm
- Channel-to-Channel Matching (ΔRon):
- 24Ohm
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 18V
- Switch Time (Ton, Toff) (Max):
- 1µs, 700ns
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 25pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-CDIP
DG508AAK/883B FAQ
1.How can I place an order for DG508AAK/883B through Aetrix?
Please submit a Request for Quotation (RFQ) for DG508AAK/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 DG508AAK/883B reliable?
The price and inventory of DG508AAK/883B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG508AAK/883B is usually 5 days.
3.What payment methods are accepted for DG508AAK/883B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG508AAK/883B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG508AAK/883B?
DG508AAK/883B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG508AAK/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 DG508AAK/883B?
For technical support, including DG508AAK/883B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG508AAK/883B requirements.
6.How does Aetrix verify that DG508AAK/883B is sourced from the original manufacturer or authorized distributors?
All DG508AAK/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 DG508AAK/883B meets industry standards.
7.What is the process for return or replacement of DG508AAK/883B?
All DG508AAK/883B units undergo pre-shipment inspection (PSI). If there is an issue with DG508AAK/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 DG508AAK/883B part is unused and in its original packaging.
Return procedure for DG508AAK/883B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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