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Analog Devices Inc./Maxim Integrated DG508ACJ+
- Part No.:
- DG508ACJ+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG508ACJ+.pdf
- Description:
- IC MUX 8:1 450OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:528
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Product details
Overview
DG508ACJ+ 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, 400Ω typical on-resistance at ±15V, and 0.6μs typical switch transition time. It serves as a precision signal-routing device in data-acquisition systems requiring rail-to-rail analog signal handling and TTL/CMOS-compatible digital control.
For engineers reviewing the DG508ACJ+ datasheet, DG508ACJ+ pinout, DG508ACJ+ application, or DG508ACJ+ equivalent, key selection criteria include guaranteed latchup immunity with powered-off supplies, sub-1μs enable timing, <1nA off-leakage at ±10V, and compatibility with industrial temperature-range upgrades (e.g., DG508ADJ).
Technical Context
The DG508ACJ+ implements a fully decoded 3-bit address logic (A0–A2) driving eight bidirectional analog switches, each with symmetrical conduction and matched RDS(ON) across channels (≤6% variation). Its CMOS architecture ensures bidirectional signal flow and zero static power draw in standby mode.
Break-before-make timing is guaranteed at 0.2μs minimum, preventing momentary shorting during channel transitions. The enable input (EN) provides global mux control with 0.4μs turn-on and 0.2μs turn-off times, independent of address changes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V - supports full-rail analog signals without clipping when V+ = +15V, V− = −15V |
| Drain-Source On-Resistance | 400Ω typ - low distortion and minimal voltage drop for ≤1mA analog loads | Greatest RDS(ON) Variation | 6% max - ensures channel-to-channel gain matching in multi-channel sampling |
| Off-Leakage Current | ±0.005nA typ at ±10V - preserves high-impedance sensor node integrity over temperature |
| Switch Transition Time | 0.6μs typ - enables ≥1MHz multiplexed sampling without settling-time penalty |
| Enable Turn-On/Off Time | 0.4μs / 0.2μs typ - allows tight synchronization with external control clocks |
| Supply Voltage Range | ±4.5V to ±18V - supports portable (±5V) and industrial (±15V) rails with same part |
Pinout & Package
DG508ACJ+ is housed in a 16-pin plastic DIP (dual in-line package) with 0.3-inch body width and through-hole mounting. Pin 1 is marked by a notch or dot; pin numbering follows standard DIP convention (counter-clockwise from top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15, 16 | A0, A1, A2 | 3-bit binary address inputs selecting one of eight analog channels (S1–S8) |
| 2 | EN | Active-high enable controlling global mux activation; disables all switches when low |
| 3 | V− | Negative supply rail connection; must be referenced to GND for proper biasing |
| 4–7 | S1–S4 | Bidirectional analog input/output terminals for channels 1–4 |
| 8 | D | Common analog output/input terminal (single-ended configuration) |
| 9–12 | S8–S5 | Bidirectional analog input/output terminals for channels 5–8 (reversed order per datasheet) |
| 13 | V+ | Positive supply rail connection; sets upper analog voltage limit |
| 14 | GND | Circuit reference ground; required for logic interface and internal bias stability |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed 0.2μs minimum open interval prevents signal shorting during channel changes |
| Latchup-proof construction | Immune to destructive latchup even when power supplies are off but analog signals remain present |
| TTL/CMOS-compatible logic inputs | Accepts 0.8V/2.4V thresholds and draws <10μA input current-no level-shifting needed |
| Symmetrical bidirectional operation | Identical on-resistance and leakage in either signal direction-enables mux/demux reuse |
| Low-power CMOS design | 0.02mA supply current in standby-extends battery life in portable data loggers |
Applications
| Control Systems | Data-Acquisition Systems |
|---|---|
Use Scenario: Routing sensor outputs (thermocouples, RTDs) to a shared ADC in PLC backplanes. IC Role / Device Role / Timing Role: Analog multiplexer providing channel-selectable signal path under microcontroller GPIO control. Use Value: Enables 8-sensor monitoring with single-ADC architecture while maintaining ±15V input tolerance and <1nA leakage-induced offset error. |
Use Scenario: High-precision sampling of multiple transducer outputs in environmental monitoring stations. IC Role / Device Role / Timing Role: Precision analog switch sequencing synchronized to ADC conversion trigger via EN pin. Use Value: 0.6μs transition time and 6% RDS(ON) matching minimize gain error across channels during rapid scanning. |
| Aircraft Heads-Up Displays | Signal Routing |
Use Scenario: Selecting between redundant video sources or calibration references in HUD video processing modules. IC Role / Device Role / Timing Role: Fault-tolerant analog switch supporting hot-swap input selection without supply interruption. Use Value: Latchup immunity ensures continued operation during partial power loss-a critical safety requirement in avionics. |
Use Scenario: Reconfigurable test equipment routing analog stimulus signals to DUT inputs based on test script. IC Role / Device Role / Timing Role: Programmable signal path manager controlled via SPI-to-GPIO bridge. Use Value: ±4.5V to ±18V operation accommodates both legacy ±5V and modern ±12V instrumentation rails using identical hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX338CPD+ | Single-supply 5V operation only; 350Ω RDS(ON); no ±15V capability | Designed for low-voltage portable systems-not suitable for ±12V/±15V industrial rails | Select MAX338CPD+ only when supply is strictly +5V and rail-to-rail analog range ≤4.5V. |
| DG508ADJ+ | Same functionality with extended −40°C to +85°C operating range; identical pinout and specs | Rated for automotive under-hood and industrial control cabinet environments | Choose DG508ADJ+ when ambient temperature exceeds +70°C-no redesign needed. |
Compared with MAX338CPD+, DG508ACJ+ supports wider supply and signal ranges but requires dual rails; compared with DG508ADJ+, it offers identical performance at lower cost for commercial-temperature applications only.
Availability
DG508ACJ+ is available at Aetrix Electronics and suitable for control systems, data-acquisition systems, and aircraft heads-up displays requiring stable component supply across commercial temperature grades.
Supply support for DG508ACJ+ 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 DG508A family delivers robust, latchup-immune analog multiplexing for systems demanding reliability under supply sequencing stress and wide analog voltage ranges.
FAQ
What is the maximum analog signal voltage supported by DG508ACJ+?
DG508ACJ+ supports analog signals from V− to V+, i.e., ±15V when operated at ±15V supplies. Absolute maximum ratings allow V− to V+ up to +44V total span, but functional analog range remains rail-limited. Exceeding V+ or V− clamps signals via internal diodes-designers must limit forward current to 20mA per terminal.
Does DG508ACJ+ require external pull-up resistors on address or enable lines?
No. DG508ACJ+ features TTL/CMOS-compatible inputs with guaranteed 0.8V low and 2.4V high thresholds and input currents under ±10μA. External pull-ups are unnecessary unless interfacing with open-drain controllers or long traces requiring noise immunity-standard microcontroller GPIOs drive it directly.
Can DG508ACJ+ operate from a single +5V supply?
No. DG508ACJ+ requires dual symmetric supplies (e.g., ±5V, ±12V, ±15V) within ±4.5V to ±18V range. Single-supply operation is not supported. For +5V-only systems, consider the pin-compatible MAX338, which shares the same 8-channel architecture but uses different process technology.
How does DG508ACJ+ prevent latchup during power-down sequences?
DG508ACJ+ uses latchup-proof CMOS fabrication that eliminates parasitic SCR formation. Even with analog inputs active while V+ and V− are at 0V, no destructive latchup occurs-verified per JEDEC JESD78. This enables safe "hot insertion" into live signal paths without system shutdown.
Is DG508ACJ+ RoHS-compliant and lead-free?
Yes. DG508ACJ+ carries the "+" suffix per Maxim's ordering nomenclature, indicating lead(Pb)-free and RoHS-compliant packaging in its 16-pin plastic DIP. The device meets EU RoHS Directive 2011/65/EU and is compatible with standard Pb-free reflow profiles (peak 260°C).
DG508ACJ+ 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):
- 450Ohm
- Channel-to-Channel Matching (ΔRon):
- 27Ohm
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 18V
- Switch Time (Ton, Toff) (Max):
- 1.5µs, 1µs
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 25pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
DG508ACJ+ FAQ
1.How can I place an order for DG508ACJ+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG508ACJ+ 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 DG508ACJ+ reliable?
The price and inventory of DG508ACJ+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG508ACJ+ is usually 5 days.
3.What payment methods are accepted for DG508ACJ+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG508ACJ+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG508ACJ+?
DG508ACJ+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG508ACJ+ 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 DG508ACJ+?
For technical support, including DG508ACJ+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG508ACJ+ requirements.
6.How does Aetrix verify that DG508ACJ+ is sourced from the original manufacturer or authorized distributors?
All DG508ACJ+ 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 DG508ACJ+ meets industry standards.
7.What is the process for return or replacement of DG508ACJ+?
All DG508ACJ+ units undergo pre-shipment inspection (PSI). If there is an issue with DG508ACJ+, 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 DG508ACJ+ part is unused and in its original packaging.
Return procedure for DG508ACJ+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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