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Analog Devices Inc./Maxim Integrated DG509ACWE+T
- Part No.:
- DG509ACWE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
DG509ACWE+T.pdf
- Description:
- IC SWITCH SP4T X 2 450OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,423
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Product details
Overview
DG509ACWE+T from Maxim Integrated is a differential 4-channel (2-of-8) monolithic CMOS analog multiplexer with break-before-make switching, ±4.5V to ±18V dual-supply operation, 500Ω typical on-resistance at ±15V, <1nA off-leakage at +25°C, and 16-pin wide SOIC package. It routes differential analog signals in precision data-acquisition and control systems where channel isolation and rail-to-rail signal handling are critical.
For engineers reviewing the DG509ACWE+T datasheet, DG509ACWE+T pinout, DG509ACWE+T application, or DG509ACWE+T equivalent, this page delivers verified electrical parameters, validated pin functions, real-world use cases in aircraft HUDs and logging systems, and two confirmed alternative parts with documented functional and application differences.
Technical Context
The DG509ACWE+T implements fully symmetrical, bidirectional analog switching using CMOS transmission gates controlled by a 2-bit address decoder (A0, A1) and an active-high enable (EN). Its latchup-proof construction ensures robustness when input signals remain present during power-down.
It guarantees continuous operation across ±4.5V to ±18V supplies, supports TTL/CMOS-compatible logic inputs, and achieves 0.2μs break-before-make interval and 0.4–1.5μs enable turn-on time - enabling fast, glitch-free signal routing in time-critical measurement paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V - supports rail-to-rail analog inputs/outputs without clipping at full supply |
| Drain-Source On-Resistance | 500Ω typ (±15V) - low distortion and minimal gain error in precision signal paths |
| Off-Leakage Current | ±0.005nA typ (VS = ±10V, VD = ∓10V) - preserves accuracy in high-impedance sensor interfaces |
| Enable Turn-On Time | 0.4μs typ - enables sub-microsecond channel selection for high-speed scanning |
| Off-Isolation | 68dB @ 500kHz - suppresses crosstalk between active and inactive differential channels |
| Supply Voltage Range | ±4.5V to ±18V - compatible with legacy industrial ±12V and test-equipment ±15V rails |
| Package | 16-pin Wide SO (W16-2) - RoHS-compliant, surface-mountable, thermal performance rated at 762mW @ +70°C |
Pinout & Package
Package: 16-pin Wide SOIC (W16-2), RoHS-compliant, body width 7.5mm, standard JEDEC MS-013AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 | A0, A1 | 2-bit binary address inputs selecting one of four differential channel pairs (S1A/S1B through S4A/S4B) |
| 2 | EN | Active-high enable controlling all switches; EN = 0 disables all channels (high-impedance state) |
| 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 four differential analog inputs/outputs; bidirectional, ±15V capable |
| 8, 9 | DA, DB | Differential analog outputs (or inputs); connected internally to selected SxA/SxB pair when enabled |
| 10–13 | S4B–S1B | Second side of four differential analog inputs/outputs; complements S1A–S4A for true differential routing |
| 14 | V+ | Positive supply rail connection; decoupling capacitor required near pin for noise immunity |
| 15 | GND | Signal reference ground; separate from power ground in mixed-signal layouts to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Break-Before-Make Switching | Guaranteed 0.2μs minimum open interval prevents momentary shorting between channels during switching |
| Latchup-Proof Construction | Operates safely with input signals present during power-off; no destructive latchup up to ±44V stress |
| Symmetrical Bidirectional Operation | Identical on-resistance and leakage in either direction - enables flexible signal flow in mux/demux configurations |
| TTL/CMOS-Compatible Logic Inputs | Accepts 0.8V/2.4V thresholds and draws <10μA - interfaces directly with microcontrollers and FPGAs without level shifters |
| Low Power Consumption | 0.02mA supply current in standby - extends battery life in portable data loggers and handheld test gear |
Applications
| Aircraft Heads-Up Displays (HUD) | Data-Acquisition Systems |
|---|---|
Use Scenario: Routing synchronized differential video and sensor sync signals from multiple sources to display driver ICs under wide temperature and EMI conditions. IC Role / Device Role / Timing Role: Differential analog multiplexer providing channel-selectable, low-crosstalk signal path with guaranteed break-before-make timing. Use Value: 68dB off-isolation and ±15V signal handling maintain image fidelity and timing integrity across display subsystems. |
Use Scenario: Scanning multiple high-impedance sensor outputs (e.g., thermocouples, strain gauges) into a single ADC front-end. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sampling with sub-nA leakage and minimal on-resistance variation. Use Value: 0.005nA typical off-leakage and 500Ω on-resistance ensure <0.01% gain error and negligible offset drift over temperature. |
| Control Systems | Signal Routing |
Use Scenario: Selecting among redundant analog feedback loops (e.g., position, velocity, current) in servo motor controllers. IC Role / Device Role / Timing Role: Fault-tolerant analog switch supporting hot-swap channel selection without signal disruption. Use Value: Latchup-proof design and ±18V supply tolerance allow safe operation during transient faults and brownouts. |
Use Scenario: Configuring test equipment I/O matrices to route arbitrary analog stimulus/response paths between instruments and UUTs. IC Role / Device Role / Timing Role: Reconfigurable differential signal router enabling automated test sequences with microsecond channel switching. Use Value: 0.4μs enable turn-on and 0.2μs break-before-make interval support >1MHz scan rates in ATE systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX339CPE+ | Pin-compatible upgrade with lower on-resistance (100Ω typ), wider temp range (−40°C to +85°C), but requires ±5V min supply. | Preferred for new designs needing higher bandwidth and lower distortion; not suitable for ±4.5V-only systems. | Select MAX339CPE+ when upgrading legacy DG509A-based systems requiring improved THD and settling time. |
| ADG509AKRZ | Functionally identical 4-channel differential mux, 400Ω on-resistance, −40°C to +85°C rating, but higher leakage (±20pA typ). | Better suited for commercial-grade instrumentation where extended temperature is required but ultra-low leakage is secondary. | Choose ADG509AKRZ when sourcing from Analog Devices' long-lifecycle portfolio and ±18V operation is not mandatory. |
Compared with MAX339CPE+ and ADG509AKRZ, the DG509ACWE+T offers unique compatibility with ±4.5V minimum supplies and the lowest off-leakage in its class - making it optimal for battery-powered, high-precision legacy and maintenance-replacement applications.
Availability
DG509ACWE+T is available at Aetrix Electronics and suitable for aircraft HUDs, data-acquisition systems, control systems, and automated test equipment requiring stable component supply, long-term obsolescence management, and RoHS-compliant wide-SO packaging.
Supply support for DG509ACWE+T 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 fabless semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing markets.
The DG509ACWE+T belongs to Maxim's legacy monolithic CMOS analog multiplexer family, designed specifically for reliable, low-distortion differential signal routing in harsh-environment measurement and display systems.
FAQ
What is the operating temperature range for DG509ACWE+T?
The DG509ACWE+T is rated for 0°C to +70°C ambient operation. This commercial-grade temperature range is specified in Maxim's official ordering information table and applies to both plastic DIP and wide SO packages bearing the "C" prefix. The device maintains full electrical performance - including on-resistance, leakage, and switching times - across this range without derating.
Does DG509ACWE+T support single-supply operation?
No, DG509ACWE+T requires dual symmetric supplies (±4.5V to ±18V) and does not support true single-supply operation. Its internal CMOS switch architecture relies on balanced positive and negative rails to achieve rail-to-rail analog signal handling and guaranteed break-before-make behavior. For single-supply designs, Maxim recommends the MAX338/MAX339 series instead.
What is the maximum analog signal voltage DG509ACWE+T can handle?
DG509ACWE+T supports analog signals from V− to V+, i.e., ±15V when operated at ±15V supplies. Absolute maximum ratings permit signals up to V− −2V and V+ +2V due to internal clamping diodes, but functional operation is guaranteed only within the supply rails. Exceeding V− or V+ risks increased leakage and potential damage if forward diode current exceeds 20mA.
Is DG509ACWE+T pin-compatible with the original DG509A?
Yes, DG509ACWE+T is a direct plug-in replacement for the industry-standard DG509A in 16-pin wide SO packaging. Maxim explicitly states "DG509A is a plug-in upgrade for the industry-standard DG509A", and the pin configuration, function mapping, and footprint (W16-2) match identically - enabling drop-in replacement without PCB modification.
How does DG509ACWE+T achieve latchup immunity?
DG509ACWE+T uses Maxim's proprietary latchup-proof CMOS process with guard rings and optimized well structures. This construction prevents parasitic SCR activation even when input signals exceed supply rails or remain present during power-down - a key reliability feature confirmed in the Absolute Maximum Ratings and General Description sections of the datasheet.
DG509ACWE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG509ACWE+T FAQ
1.How can I place an order for DG509ACWE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for DG509ACWE+T 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 DG509ACWE+T reliable?
The price and inventory of DG509ACWE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG509ACWE+T is usually 5 days.
3.What payment methods are accepted for DG509ACWE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG509ACWE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG509ACWE+T?
DG509ACWE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG509ACWE+T 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 DG509ACWE+T?
For technical support, including DG509ACWE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG509ACWE+T requirements.
6.How does Aetrix verify that DG509ACWE+T is sourced from the original manufacturer or authorized distributors?
All DG509ACWE+T 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 DG509ACWE+T meets industry standards.
7.What is the process for return or replacement of DG509ACWE+T?
All DG509ACWE+T units undergo pre-shipment inspection (PSI). If there is an issue with DG509ACWE+T, 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 DG509ACWE+T part is unused and in its original packaging.
Return procedure for DG509ACWE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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