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Analog Devices Inc./Maxim Integrated DG509AMY/PR
- Part No.:
- DG509AMY/PR
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG509AMY/PR.pdf
- Description:
- IC SWITCH SP4TX2 400OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,158
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Product details
Overview
DG509AMY/PR from Maxim Integrated is a differential 4-channel (2-of-8) monolithic CMOS analog multiplexer designed for precision signal routing in high-reliability systems. It operates from ±4.5V to ±18V supplies, guarantees break-before-make switching, supports symmetrical bidirectional analog signal flow up to ±15V, and features <0.5nA max drain off-leakage at -55°C to +125°C - enabling use in aerospace data-acquisition and aircraft heads-up displays.
For engineers reviewing the DG509AMY/PR datasheet, DG509AMY/PR pinout, DG509AMY/PR application, or DG509AMY/PR equivalent, key selection criteria include its -55°C to +125°C extended temperature rating, 16-pin narrow SO package, differential channel architecture, ±15V analog signal range, and guaranteed latchup immunity during power-off signal presence.
Technical Context
The DG509AMY/PR implements a CMOS decode logic architecture that selects one of four differential pairs (S1A/S1B through S4A/S4B) using two address inputs (A0, A1) and an enable control (EN). Its internal switch structure ensures true break-before-make timing (tOPEN = 0.2μs typ), preventing momentary shorting between channels during state transitions.
All analog terminals (S1A–S4A, S1B–S4B, DA, DB) support bidirectional signal flow with matched on-resistance (RDS(ON) = 500Ω max over temperature), while logic inputs (A0, A1, EN) accept TTL- and CMOS-compatible voltage levels and draw ≤±30μA input current across the full operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V - supports rail-to-rail analog signals without clipping in ±15V systems |
| Supply Voltage Range | ±4.5V to ±18V - enables operation in legacy industrial and avionics power domains |
| Drain Off-Leakage (ID(OFF)) | ±100nA max at TA = TMIN to TMAX - ensures minimal crosstalk in high-impedance sensor front-ends |
| Enable Turn-On Time | 0.4μs typ - allows fast channel switching in real-time control loops |
| Break-Before-Make Interval | 0.2μs typ - prevents transient short-circuits during channel reconfiguration |
| Operating Temperature | -55°C to +125°C - qualified for military, aerospace, and downhole industrial environments |
| Package | 16-pin narrow SO (S16-5) - surface-mount compatible with standard PCB assembly processes |
Pinout & Package
Package: 16-pin narrow SO (S16-5), RoHS-compliant, lead-free option indicated by "+" suffix (DG509AMY/PR includes /PR marking confirming Pb-free compliance).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 | A0, A1 | Binary address inputs selecting one of four differential channel pairs (00→S1, 11→S4) |
| 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 and stable within ±4.5V to ±18V range |
| 4–7 | S1A–S4A | First side of differential analog inputs/outputs; bidirectional, ±15V capable |
| 8, 9 | DA, DB | Differential analog outputs (common to all selected channels); matched impedance path |
| 10–13 | S4B–S1B | Second side of differential analog inputs/outputs; complements S1A–S4A for balanced signaling |
| 14 | V+ | Positive supply rail connection; decoupling required per analog design best practices |
| 15 | GND | Analog ground reference; separate from digital ground in mixed-signal layouts |
Key Features
| Feature | Design Value |
|---|---|
| Latchup-proof construction | Guaranteed immunity to latchup even when power supplies are off but analog signals remain present |
| Symmetrical bidirectional operation | Identical on-resistance and leakage performance regardless of signal direction - critical for transducer interfacing |
| TTL/CMOS-compatible logic inputs | Accepts standard logic thresholds (0.8V/2.4V) without level-shifting, reducing BOM count |
| Break-before-make switching | 0.2μs minimum open interval prevents channel-to-channel shorting during address changes |
| Low standby supply current | I+ = 0.02mA / I− = -0.1mA in disabled state - extends battery life in portable instrumentation |
Applications
| Aircraft Heads-Up Displays | Data-Acquisition Systems |
|---|---|
Use Scenario: Routing multiple sensor-derived video and symbology signals to display drivers under extreme thermal cycling. IC Role / Device Role / Timing Role: Differential analog multiplexer selecting among four independent video channel pairs with precise timing control. Use Value: ±15V signal handling and -55°C to +125°C operation ensure uninterrupted display integrity during flight envelope extremes. | Use Scenario: Switching high-impedance transducer outputs (e.g., strain gauges, thermocouples) into a shared ADC front-end. IC Role / Device Role / Timing Role: Low-leakage (±100nA max ID(OFF)), matched RDS(ON) differential mux enabling accurate ratiometric measurements. Use Value: Break-before-make timing eliminates measurement corruption during channel scanning sequences. |
| Control Systems | Signal Routing |
Use Scenario: Isolating feedback paths in redundant flight control computers where signal integrity must survive EMI and thermal stress. IC Role / Device Role / Timing Role: Fault-tolerant analog switch providing differential signal isolation between controller modules. Use Value: Latchup-proof design ensures continued operation during brownout or hot-swap events without system reset. | Use Scenario: Reconfiguring test equipment I/O paths for automated calibration of multi-channel instrumentation. IC Role / Device Role / Timing Role: Precision analog routing element supporting ±15V test signals and fast (<1μs) channel switching. Use Value: 0.4μs enable turn-on time enables sub-microsecond test sequence execution in ATE platforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX339CPE+ | Single-supply (±5V or +5V) operation only; lower on-resistance (100Ω typ) but narrower temp range (-40°C to +85°C) | Targeted at commercial portable instruments, not extended-temperature aerospace systems | Select MAX339CPE+ only if single-supply bias and higher speed outweigh temperature and voltage range requirements |
| ADG509ATQ | Same 4-channel differential topology, but rated -40°C to +125°C and uses 16-lead TSSOP; RDS(ON) = 300Ω typ at +25°C | Preferred for new designs requiring finer pitch packaging and tighter on-resistance matching | Choose ADG509ATQ when board space is constrained and full -55°C qualification is not mandatory |
Compared with DG509AMY/PR, MAX339CPE+ offers better on-resistance but lacks extended temperature capability and dual-supply flexibility, while ADG509ATQ provides modern packaging and improved RDS(ON) consistency but does not meet the -55°C lower limit required for certain military specifications.
Availability
DG509AMY/PR is available at Aetrix Electronics and suitable for aircraft heads-up displays, data-acquisition systems, and control systems requiring stable component supply across extended temperature and high-reliability operational profiles.
Supply support for DG509AMY/PR 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 demanding industrial, automotive, and communications applications.
The DG509AMY/PR belongs to Maxim's legacy DG509A family of monolithic CMOS analog multiplexers, engineered specifically for robust signal routing in harsh-environment systems where latchup immunity, wide supply range, and guaranteed break-before-make behavior are mandatory.
FAQ
What is the maximum analog signal voltage supported by the DG509AMY/PR?
The DG509AMY/PR supports an analog signal range of ±15V when operated with ±15V supplies. This is specified in the Absolute Maximum Ratings and Electrical Characteristics tables, and applies across the full -55°C to +125°C operating temperature range. Operation outside this range risks exceeding internal clamp diode limits and may cause permanent damage to the DG509AMY/PR.
Does the DG509AMY/PR require external pull-up or pull-down resistors on its address or enable pins?
No, the DG509AMY/PR does not require external pull-up or pull-down resistors on A0, A1, or EN. Its logic inputs are fully compatible with TTL and CMOS voltage levels (0.8V low, 2.4V high), and input current remains within ±30μA across temperature - eliminating need for biasing. This simplifies interface design and reduces component count in systems using the DG509AMY/PR.
Is the DG509AMY/PR pin-compatible with the industry-standard DG509A?
Yes, the DG509AMY/PR is a plug-in upgrade for the industry-standard DG509A, sharing identical pinout, function mapping, and package footprint (16-pin narrow SO). The datasheet explicitly states "DG509A is a plug-in upgrade for the industry-standard DG509A", confirming mechanical and electrical compatibility - allowing direct replacement without PCB modification for the DG509AMY/PR.
What is the guaranteed break-before-make interval for the DG509AMY/PR?
The DG509AMY/PR guarantees a break-before-make interval (tOPEN) of 0.2μs typical, as measured per Figure 3 in the datasheet. This parameter is tested and specified across temperature and supply conditions, ensuring no overlap between channel conduction states during address transitions - a critical requirement for fault-tolerant signal routing in the DG509AMY/PR.
How does the DG509AMY/PR handle power sequencing when analog signals are present before V+ and V− are applied?
The DG509AMY/PR is guaranteed latchup-proof: it will not latch up even if analog signals are present while power supplies are off or during improper power sequencing. This is a defined reliability feature confirmed in the General Description, making the DG509AMY/PR suitable for hot-plug and fail-safe systems where signal integrity must persist across supply transients.
DG509AMY/PR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SP4T - Open/Closed
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 2
- 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, 12pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -
- Operating Temperature:
- -55°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG509AMY/PR FAQ
1.How can I place an order for DG509AMY/PR through Aetrix?
Please submit a Request for Quotation (RFQ) for DG509AMY/PR 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 DG509AMY/PR reliable?
The price and inventory of DG509AMY/PR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG509AMY/PR is usually 5 days.
3.What payment methods are accepted for DG509AMY/PR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG509AMY/PR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG509AMY/PR?
DG509AMY/PR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG509AMY/PR 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 DG509AMY/PR?
For technical support, including DG509AMY/PR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG509AMY/PR requirements.
6.How does Aetrix verify that DG509AMY/PR is sourced from the original manufacturer or authorized distributors?
All DG509AMY/PR 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 DG509AMY/PR meets industry standards.
7.What is the process for return or replacement of DG509AMY/PR?
All DG509AMY/PR units undergo pre-shipment inspection (PSI). If there is an issue with DG509AMY/PR, 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 DG509AMY/PR part is unused and in its original packaging.
Return procedure for DG509AMY/PR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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