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Analog Devices Inc./Maxim Integrated DG509AEWE+
- Part No.:
- DG509AEWE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
DG509AEWE+.pdf
- Description:
- IC SWITCH SP4T X 2 450OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:137
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Product details
Overview
DG509AEWE+ from Maxim Integrated is a differential 4-channel (2-of-8) monolithic CMOS analog multiplexer with ±4.5V to ±18V dual-supply operation, break-before-make switching, and guaranteed latchup immunity during power-off signal presence. It features 500Ω typical on-resistance, <0.5nA max off-leakage at ±10V, and 0.6μs typical switch transition time - enabling precision signal routing in high-reliability data-acquisition systems.
For engineers reviewing the DG509AEWE+ datasheet, DG509AEWE+ pinout, DG509AEWE+ application, or DG509AEWE+ equivalent, key selection criteria include its differential channel architecture, wide supply range compatibility, low leakage performance across -40°C to +85°C, and direct replacement suitability for legacy DG509A designs requiring improved enable timing and reduced power consumption.
Technical Context
The DG509AEWE+ implements a fully decoded CMOS logic array driving eight bidirectional analog switches arranged as four differential pairs (S1A/S1B through S4A/S4B), with independent address inputs A0/A1 and global enable EN controlling channel selection. Its symmetrical analog path supports bidirectional signal flow with matched on-resistance and capacitance across complementary channels.
Break-before-make timing is guaranteed at ≤0.2μs, preventing momentary shorting during channel transitions. The device operates with TTL- and CMOS-compatible digital inputs and maintains functional integrity even when powered supplies are absent but analog signals remain present - a critical feature for hot-swap and fail-safe system architectures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V - supports full-rail signal routing without clipping in ±15V industrial instrumentation. |
| Drain-Source On-Resistance | 500Ω typ - ensures minimal gain error and voltage drop in precision sensor signal paths. |
| Off-Leakage Current | ±0.5nA max at ±10V - preserves accuracy in high-impedance data-logging front-ends. |
| Switch Transition Time | 0.6μs typ - enables sampling rates up to ~1.2MHz in sequential mux applications. |
| Enable Turn-On/Off Time | 0.4μs / 0.2μs typ - allows fast channel reconfiguration synchronized to system control clocks. |
| Supply Voltage Range | ±4.5V to ±18V - accommodates legacy ±5V, ±12V, and ±15V power domains without level-shifting. |
| Operating Temperature | -40°C to +85°C - qualified for extended industrial and avionics environmental profiles. |
Pinout & Package
Package: 16-pin Wide SO (W16-2), RoHS-compliant, surface-mount, 7.5mm × 10.3mm body size with 1.27mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 | A0, A1 | Binary address inputs selecting one of four differential channel pairs (00–11). |
| 2 | EN | Active-high enable controlling all switch conduction; disables all channels when low. |
| 3 | V− | Negative supply rail connection; must be referenced to GND and stable within ±4.5V to ±18V range. |
| 4–7 | S1A–S4A | First side of differential analog inputs/outputs; bidirectional, matched to corresponding SxB pins. |
| 8, 9 | DA, DB | Differential analog outputs (or inputs); DA connects to selected SxA, DB to corresponding SxB. |
| 10–13 | S4B–S1B | Second side of differential analog inputs/outputs; polarity-matched to S1A–S4A for common-mode rejection. |
| 14 | V+ | Positive supply rail connection; complements V− to define full analog signal swing capability. |
| 15 | GND | Analog/digital reference ground; requires low-impedance connection to minimize noise coupling into analog paths. |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed ≤0.2μs interval prevents signal shorting during channel transitions - essential for fault-tolerant routing. |
| Latchup-proof construction | Immune to destructive latchup even when powered down with live analog inputs - enables safe hot-swap operation. |
| Symmetrical bidirectional operation | Identical on-resistance and capacitance on both signal directions - preserves signal integrity in transceiver and loopback modes. |
| TTL/CMOS-compatible logic inputs | Accepts standard 0.8V/2.4V thresholds without external biasing - simplifies interface to microcontrollers and FPGAs. |
| Low-power CMOS design | Typical supply current <0.2mA per rail - extends battery life in portable data loggers and handheld test equipment. |
Applications
| Industrial Data-Acquisition Systems | Aircraft Heads-Up Displays (HUD) |
|---|---|
|
Use Scenario: Multiplexing multiple sensor outputs (thermocouples, strain gauges) into a single ADC channel with high common-mode rejection. IC Role / Device Role / Timing Role: Differential 4-channel analog mux routing paired sensor signals while maintaining matched path characteristics. Use Value: Enables precise differential measurement with <0.5nA leakage and 500Ω on-resistance matching - reducing offset drift and gain error. |
Use Scenario: Switching between redundant video sources or symbol generators feeding HUD combiner optics. IC Role / Device Role / Timing Role: High-reliability analog signal selector with break-before-make guarantee to prevent display corruption during source transitions. Use Value: Ensures glitch-free video switching via ≤0.2μs B-B-M interval and ±15V signal handling - meeting DO-160E transient immunity requirements. |
| Control Systems with Redundant I/O | Portable Environmental Monitoring Equipment |
|
Use Scenario: Routing primary and backup analog control signals (e.g., valve position feedback) to PLC input modules. IC Role / Device Role / Timing Role: Fault-tolerant differential mux providing signal continuity during channel failure detection and switchover. Use Value: Latchup immunity allows safe operation during partial power loss; -40°C to +85°C rating supports uncontrolled cabinet environments. |
Use Scenario: Battery-powered air quality sensor node aggregating CO₂, NO₂, and humidity signals before digitization. IC Role / Device Role / Timing Role: Low-power analog multiplexer enabling sequential sampling of multiple electrochemical sensors. Use Value: <0.2mA supply current and ±4.5V minimum operation extend runtime on coin-cell or Li-ion sources without DC-DC overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX339ESE+ | Improved successor: ±5V to ±20V range, 125Ω RDS(ON), 0.1nA leakage, integrated ESD protection. | Supports lower-voltage systems (±5V) and higher precision due to lower on-resistance mismatch. | Select MAX339ESE+ for new designs requiring tighter on-resistance matching or single-supply compatibility. |
| DG509ADY+ | Narrow SO package (S16-5), identical electrical specs, but smaller footprint (3.9mm × 9.9mm vs. 7.5mm × 10.3mm). | Better suited for space-constrained PCB layouts where thermal mass and trace routing allow narrower pitch. | Choose DG509ADY+ when board area is constrained and thermal dissipation remains within 696mW limit. |
Compared with DG509AEWE+, MAX339ESE+ delivers superior precision and broader supply flexibility but requires layout revision; DG509ADY+ offers identical functionality in a smaller package but with reduced thermal margin - making DG509AEWE+ optimal for industrial designs prioritizing thermal robustness and legacy footprint compatibility.
Availability
DG509AEWE+ is available at Aetrix Electronics and suitable for industrial data-acquisition systems, aircraft heads-up displays, and portable environmental monitoring equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG509AEWE+ 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.
The DG509AEWE+ belongs to Maxim's legacy monolithic CMOS analog multiplexer product line, engineered for robust signal routing in harsh environments where supply sequencing, latchup immunity, and wide voltage operation are critical.
FAQ
What is the maximum analog signal voltage supported by the DG509AEWE+?
The DG509AEWE+ supports analog signals from V− to V+, with absolute maximum ratings of −2V to (V+ + 2V) on analog terminals. When operated at ±15V supplies, it reliably handles ±15V signals - verified across −40°C to +85°C. Exceeding these limits risks diode clamping and potential damage, so system-level overvoltage protection must be implemented externally if input transients exceed the rails.
Does the DG509AEWE+ require external pull-up or pull-down resistors on its address or enable pins?
No, the DG509AEWE+ does not require external pull-up or pull-down resistors on A0, A1, or EN. Its logic inputs are CMOS-compatible with guaranteed thresholds at 0.8V (low) and 2.4V (high), and input leakage remains below ±30μA across temperature. However, for noise immunity in high-EMI environments, a 10kΩ pull-down on EN is recommended to ensure default-off behavior during power-up.
How does the break-before-make timing of the DG509AEWE+ impact signal integrity in differential applications?
The DG509AEWE+ guarantees ≤0.2μs break-before-make (B-B-M) interval, ensuring no overlap between conduction paths during channel switching. In differential configurations, this eliminates momentary shorts between complementary signal pairs - preserving common-mode rejection ratio (CMRR) and preventing transient glitches that could corrupt downstream amplifiers or ADCs in precision measurement chains.
Can the DG509AEWE+ operate from a single +5V supply?
No, the DG509AEWE+ requires dual ±4.5V to ±18V supplies and cannot operate from a single +5V rail. Its internal CMOS switch architecture relies on symmetric positive and negative rails to bias the transmission gates. For single-supply 5V systems, Maxim recommends the pin-compatible MAX339, which supports +5V operation and offers improved on-resistance and leakage performance.
What is the thermal resistance (θJA) of the DG509AEWE+ in its Wide SO package?
The DG509AEWE+ in the 16-pin Wide SO package (W16-2) has a junction-to-ambient thermal resistance (θJA) of 105°C/W, derived from its 762mW maximum continuous power dissipation at +70°C and 9.52mW/°C derating above that temperature. This value assumes standard JEDEC 2-layer board conditions; actual θJA improves with added copper pour and thermal vias beneath the exposed pad area.
DG509AEWE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 2
- 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, 12pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG509AEWE+ FAQ
1.How can I place an order for DG509AEWE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG509AEWE+ 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 DG509AEWE+ reliable?
The price and inventory of DG509AEWE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG509AEWE+ is usually 5 days.
3.What payment methods are accepted for DG509AEWE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG509AEWE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG509AEWE+?
DG509AEWE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG509AEWE+ 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 DG509AEWE+?
For technical support, including DG509AEWE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG509AEWE+ requirements.
6.How does Aetrix verify that DG509AEWE+ is sourced from the original manufacturer or authorized distributors?
All DG509AEWE+ 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 DG509AEWE+ meets industry standards.
7.What is the process for return or replacement of DG509AEWE+?
All DG509AEWE+ units undergo pre-shipment inspection (PSI). If there is an issue with DG509AEWE+, 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 DG509AEWE+ part is unused and in its original packaging.
Return procedure for DG509AEWE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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