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Analog Devices Inc./Maxim Integrated DG409DY+
- Part No.:
- DG409DY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG409DY+.pdf
- Description:
- IC SWITCH SP4T X 2 100OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:254
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Product details
Overview
DG409DY+ from Maxim Integrated is a dual 4-channel CMOS analog multiplexer/demultiplexer designed for precision signal routing in mixed-signal systems. It features guaranteed on-resistance matching (≤8Ω), flatness (≤9Ω), low charge injection (≤15pC), 100Ω max on-resistance, and operates from ±5V to ±20V dual supplies or +5V to +30V single supply-enabling use in data-acquisition front-ends with rail-to-rail analog signal handling.
For engineers reviewing the DG409DY+ datasheet, DG409DY+ pinout, DG409DY+ application, or DG409DY+ equivalent, key selection criteria include channel matching tolerance, leakage at +85°C (≤5nA), enable-controlled break-before-make timing (85–175ns), dual-supply flexibility, and compatibility with TTL/CMOS logic levels.
Technical Context
The DG409DY+ implements two independent 4:1 analog multiplexers sharing common address (A0, A1) and enable (EN) inputs, each with bidirectional Sx and Dx terminals. Its CMOS transmission-gate architecture supports rail-to-rail analog signals up to ±20V and guarantees monotonic on-resistance vs. voltage and temperature.
It uses internal decoding logic to select one of four input channels per section based on binary A0/A1 states, with EN asserting high to enable conduction. Switching is controlled by digital inputs referenced to V+ and V−, not GND, enabling true bipolar operation without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | 100Ω max - ensures minimal signal attenuation and gain error in precision gain-setting or sensor interface paths |
| On-Resistance Matching | 8Ω max - enables accurate differential signal routing and ratiometric measurement across channels |
| Charge Injection | 15pC max - limits voltage glitch and settling time in sample-and-hold circuits using ≤1nF hold capacitors |
| Analog Signal Range | ±10V (dual supply) - supports full-scale industrial sensor outputs and DAC-driven actuator interfaces |
| Input Leakage (T = +85°C) | 5nA max - preserves accuracy in high-impedance transducer interfaces (e.g., piezoelectric sensors) |
| Enable Turn-On Time | 85–150ns - allows sub-microsecond channel switching in automated test equipment scan sequences |
| ESD Protection | >2000V HBM - meets MIL-STD-883 Method 3015.7 for robustness in manufacturing and field environments |
Pinout & Package
DG409DY+ is housed in a 16-pin narrow SO (Small Outline) package with 1.27mm pitch, JEDEC MS-012 compliant, and rated for -40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15, 16 | A0, A1, EN | Address and enable inputs - binary-selects active channel pair; EN high enables both mux sections |
| 2 | GND | Ground reference for logic inputs - tied to system ground when operating with single supply (V− = GND) |
| 3 | V+ | Positive supply rail - sets upper analog signal limit; must be ≥ V− + 2V for proper operation |
| 4–7 | S1A–S4A | Bidirectional analog inputs (Section A) - connect to sensors, DACs, or signal sources requiring 4:1 routing |
| 8, 9 | DA, DB | Bidirectional analog outputs - route selected signals to ADCs, amplifiers, or processing stages |
| 10–13 | S4B–S1B | Bidirectional analog inputs (Section B) - independent second 4:1 path for dual-channel acquisition or redundancy |
| 14 | V− | Negative supply rail - sets lower analog signal limit; required for bipolar operation and rail-to-rail swing |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ without clipping - eliminates need for external level shifters in ±15V systems |
| Guaranteed channel matching | ≤8Ω on-resistance delta between any two channels - critical for matched-pair applications like instrumentation amplifier front-ends |
| Low charge injection | ≤15pC - reduces hold capacitor voltage step error to <15mV with 1nF capacitor, enabling 12-bit+ sample-and-hold fidelity |
| TTL/CMOS-compatible control | Logic thresholds (VAL ≤ 0.8V, VAH ≥ 2.4V) - directly interfaces with microcontrollers and FPGAs without buffer ICs |
| Break-before-make switching | 85–175ns interval - prevents momentary short-circuit between channels during address transitions |
Applications
| Test Equipment Channel Selection | Data-Acquisition Front-End |
|---|---|
Use Scenario: Automated test systems switch multiple sensor inputs or stimulus outputs under software control. IC Role / Device Role / Timing Role: Dual 4:1 analog mux routes DUT signals to shared measurement hardware with synchronized enable control. Use Value: Pin-compatible upgrade from legacy DG409 improves channel matching and reduces settling error in multi-point calibration routines. | Use Scenario: Industrial PLC modules condition and digitize analog sensor signals (e.g., 4–20mA loops, thermocouples). IC Role / Device Role / Timing Role: Routes conditioned analog signals to a single high-resolution ADC via time-multiplexed sampling. Use Value: Low 5nA leakage at +85°C maintains accuracy in uncooled enclosures; rail-to-rail support handles full ±10V sensor spans. |
| Audio Signal Routing | Guidance and Control Systems |
Use Scenario: Pro-audio mixers or broadcast gear dynamically assign line-level inputs to processing chains. IC Role / Device Role / Timing Role: Bidirectional analog switch selects between microphone preamp outputs, effects returns, or monitor feeds. Use Value: 100Ω on-resistance and low crosstalk (-92dB) preserve wideband audio fidelity and channel separation. | Use Scenario: Avionics or missile guidance units route inertial measurement unit (IMU) and GPS analog telemetry to flight computers. IC Role / Device Role / Timing Role: Provides fault-tolerant signal path selection between redundant sensor channels using enable-controlled isolation. Use Value: ESD protection >2000V and -40°C to +85°C rating ensure reliability in harsh electromagnetic and thermal environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG409BRZ | 100Ω typical on-resistance (vs. 100Ω max for DG409DY+); 20pC charge injection (vs. 15pC max); -40°C to +85°C grade | Higher charge injection increases hold-step error in precision S/H; otherwise identical dual 4:1 function and pinout | Select ADG409BRZ only if Maxim's supply chain constraints require alternate sourcing; verify charge injection impact on target acquisition speed and resolution. |
| MAX4619ESE+ | Single-supply only (+2.7V to +12V); 60Ω max on-resistance; no dual-supply capability; 16-pin SO package | Cannot replace DG409DY+ in ±15V systems; suited for low-voltage portable instrumentation only | Use MAX4619ESE+ only in new designs constrained to single-supply operation below +12V; not a drop-in replacement. |
Compared with ADG409BRZ and MAX4619ESE+, the DG409DY+ uniquely delivers guaranteed 15pC charge injection, ±20V dual-supply operation, and 8Ω channel matching - making it the preferred choice for high-fidelity, wide-dynamic-range multiplexing where signal integrity and temperature stability are critical.
Availability
DG409DY+ is available at Aetrix Electronics and suitable for test equipment channel selection, data-acquisition front-end design, and guidance and control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG409DY+ 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, mixed-signal, and power-management ICs for industrial, automotive, communications, and computing applications.
The DG409DY+ belongs to Maxim's precision analog multiplexer product line, engineered specifically for applications demanding low distortion, tight channel matching, and robust operation in wide-temperature, wide-supply environments.
FAQ
What supply voltage ranges does the DG409DY+ support?
The DG409DY+ operates from ±5V to ±20V dual supplies or +5V to +30V single supply. When using single supply, V− must be connected to GND. Unbalanced supplies (e.g., +24V/−5V) are also supported, provided the difference between V+ and V− does not exceed +44V. These ranges allow the DG409DY+ to interface directly with industrial sensors, DACs, and op-amps without level-shifting circuitry.
How does the DG409DY+ handle channel selection and enable control?
The DG409DY+ uses two address inputs (A0, A1) and one enable input (EN) to control both 4:1 multiplexer sections simultaneously. With EN high, A0/A1 select one of four inputs per section (S1A–S4A → DA; S1B–S4B → DB). When EN is low, all switches open. This architecture ensures synchronized channel switching across both sections - essential for differential or dual-path signal routing in the DG409DY+.
Is the DG409DY+ pin-compatible with older DG409 variants?
Yes, the DG409DY+ is a pin-compatible plug-in upgrade for the industry-standard DG409. It retains identical pin functions, package footprint (16-pin narrow SO), and logic-level compatibility while improving key parameters: on-resistance matching (8Ω max vs. unspecified in legacy parts), charge injection (15pC max), and leakage (5nA max at +85°C). No PCB redesign is needed to upgrade to DG409DY+.
What is the maximum analog signal voltage the DG409DY+ can switch?
The DG409DY+ supports rail-to-rail analog signals from V− to V+. With ±15V supplies, this means ±15V; with ±20V supplies, it handles ±20V. The absolute maximum analog voltage is limited by the supply rails - signals must remain within (V− − 0.3V) to (V+ + 0.3V) to avoid damage. This capability makes the DG409DY+ suitable for high-voltage industrial I/O and precision test instrumentation.
Does the DG409DY+ include break-before-make functionality?
Yes, the DG409DY+ guarantees a break-before-make interval of 85–175ns during address transitions. This prevents momentary short-circuiting between channels, protecting downstream circuitry and avoiding signal corruption in sensitive measurement paths. The timing is specified under standard dual-supply conditions (V+ = 15V, V− = −15V) and remains functional across the full operating temperature range of −40°C to +85°C.
DG409DY+ 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):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 1.5Ohm
- Voltage - Supply, Single (V+):
- 5V ~ 30V
- Voltage - Supply, Dual (V±):
- ±5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 150ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 3pF, 14pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -92dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG409DY+ FAQ
1.How can I place an order for DG409DY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG409DY+ 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 DG409DY+ reliable?
The price and inventory of DG409DY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG409DY+ is usually 5 days.
3.What payment methods are accepted for DG409DY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG409DY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG409DY+?
DG409DY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG409DY+ 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 DG409DY+?
For technical support, including DG409DY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG409DY+ requirements.
6.How does Aetrix verify that DG409DY+ is sourced from the original manufacturer or authorized distributors?
All DG409DY+ 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 DG409DY+ meets industry standards.
7.What is the process for return or replacement of DG409DY+?
All DG409DY+ units undergo pre-shipment inspection (PSI). If there is an issue with DG409DY+, 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 DG409DY+ part is unused and in its original packaging.
Return procedure for DG409DY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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