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Analog Devices Inc./Maxim Integrated DG405DY+
- Part No.:
- DG405DY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG405DY+.pdf
- Description:
- IC SWITCH DPST-NOX2 45OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,532
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Product details
Overview
DG405DY+ from Maxim Integrated is a dual, high-speed, normally open analog switch IC designed for precision signal routing in bipolar or single-supply systems. It features guaranteed 2Ω max on-resistance matching between channels, 3Ω max on-resistance flatness over ±15V signal range, and 15pC max charge injection - enabling low-distortion sampling in test equipment and guidance systems.
For engineers reviewing the DG405DY+ datasheet, DG405DY+ pinout, DG405DY+ application, or DG405DY+ equivalent, key selection criteria include rail-to-rail analog signal handling (±15V), sub-150ns switching speed, TTL/CMOS logic compatibility, and <5nA off-leakage at +85°C in industrial temperature operation.
Technical Context
The DG405DY+ implements two independent SPST (single-pole/single-throw) analog switches with complementary control logic: IN1 controls S1/D1, IN2 controls S2/D2. Each switch conducts bidirectionally with matched rDS(ON) and flat on-resistance across the full analog range from V− to V+.
It operates from ±4.5V to ±20V bipolar supplies or +10V to +30V single supply, with separate VL pin for +5V logic interface. Internal substrate connection to V+ enables robust ESD protection and stable operation up to 44V absolute maximum rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance Match | 2Ω max - ensures matched gain/attenuation in differential or dual-path signal chains |
| On-Resistance Flatness | 3Ω max over ±10V - maintains consistent signal integrity across full input swing |
| Charge Injection | 15pC max - minimizes voltage glitch in sample-and-hold and multiplexed ADC front-ends |
| Off-Leakage Current | <5nA at +85°C - preserves accuracy in high-impedance sensor interfaces and battery-operated systems |
| Switching Speed | tON ≤150ns, tOFF ≤100ns - supports >5MHz multiplexing in real-time test and comms systems |
| Analog Signal Range | ±15V (with ±15V supplies) - enables direct interfacing with op-amp outputs and industrial transducers |
| Logic Compatibility | TTL/CMOS with dedicated VL = +5V - decouples logic threshold from analog supply rails |
Pinout & Package
DG405DY+ is housed in a 16-pin plastic DIP package (0.300" wide), rated for −40°C to +85°C operation. Pin functions are validated per Maxim's official DG405 pin configuration diagrams and truth tables.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | D1, D2 | Drain terminals - bidirectional analog signal outputs routed through internal MOSFETs |
| 2, 7 | N.C. | Not internally connected - no internal bond wire or circuit connection |
| 3, 6 | S1, S2 | Source terminals - bidirectional analog signal inputs tied to switch channel inputs |
| 4, 5 | IN1, IN2 | Digital logic inputs - active-high control signals enabling respective S/D pairs |
| 9 | V+ | Positive supply - connects to substrate; sets upper analog rail and powers internal circuitry |
| 10 | VL | Logic supply - must be +5V for TTL compatibility; independent of V+/V− |
| 11 | GND | Ground reference - common return for logic and substrate bias |
| 12 | V− | Negative supply - sets lower analog rail; internal diodes clamp signals beyond V− |
| 13–16 | N.C. | Not internally connected - electrically isolated from die; no routing or function |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog switching | Signals from V− to V+ pass unattenuated - eliminates level-shifting in ±15V op-amp circuits |
| Guaranteed rDS(ON) match | ≤2Ω difference between channels - critical for matched gain in instrumentation amplifier front-ends |
| Low charge injection (15pC) | Reduces hold-mode error in 12-bit+ sample-and-hold stages without external correction |
| Bipolar or single-supply operation | ±4.5V to ±20V or +10V to +30V - simplifies power architecture in mixed-signal test racks |
| TTL/CMOS-compatible logic | +5V VL pin allows direct FPGA/microcontroller interface without level translators |
Applications
| Test Equipment Signal Routing | Guidance System Sensor Multiplexing |
|---|---|
Use Scenario: High-precision automated test equipment routes multiple sensor inputs to a shared ADC channel under microcontroller control. IC Role / Device Role / Timing Role: DG405DY+ acts as a dual-channel analog multiplexer, selecting between two independent transducer signals with minimal crosstalk and offset drift. Use Value: 90dB crosstalk and <5nA leakage at +85°C ensure measurement fidelity across temperature-cycled environmental chambers. |
Use Scenario: Inertial measurement units (IMUs) use redundant accelerometers and gyros; signals are time-multiplexed before digitization. IC Role / Device Role / Timing Role: DG405DY+ provides synchronized, low-glitch switching of analog feedback paths in closed-loop stabilization circuits. Use Value: 15pC charge injection and 150ns tON prevent transient-induced attitude estimation errors during rapid sensor switching. |
| Heads-Up Display Video Switching | Battery-Operated Audio Routing |
Use Scenario: Military HUD systems overlay synthetic vision data onto pilot view; analog video sources (FLIR, radar, symbology) are switched based on mission mode. IC Role / Device Role / Timing Role: DG405DY+ serves as a dual video path selector, passing composite NTSC/PAL signals with minimal distortion and timing skew. Use Value: 39pF channel-on capacitance and rail-to-rail ±12V capability preserve video bandwidth and DC restoration integrity. |
Use Scenario: Portable medical audio recorders route microphone, line-in, and headphone outputs using low-power analog switches. IC Role / Device Role / Timing Role: DG405DY+ enables battery-conscious signal path selection with only 35µW max power consumption and no standby current penalty. Use Value: Sub-1µA supply currents (I+, I−, IL) at +25°C extend runtime in coin-cell-powered diagnostic devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1419BRUZ | Single-supply only (+5V to +36V); 0.6Ω typical rDS(ON); higher 35pC charge injection | Requires no negative rail - suitable for portable designs but less ideal for ±15V industrial signal chains | Select when system uses only positive supplies and prioritizes ultra-low on-resistance over charge injection |
| TS5A23157DRCR | Lower voltage range (2.5V to 5.5V); 0.9Ω typical rDS(ON); 12pC charge injection; 30ns switching | Optimized for low-voltage digital audio and USB-C analog mux - not rated for ±15V operation | Choose for battery-powered consumer audio where rail-to-rail ±15V support is unnecessary |
Compared with ADG1419BRUZ and TS5A23157DRCR, DG405DY+ uniquely supports true bipolar ±15V analog signal routing with guaranteed low mismatch and leakage at extended temperature - making it irreplaceable in military, aerospace, and high-accuracy test instrumentation where supply flexibility and parametric stability are non-negotiable.
Availability
DG405DY+ is available at Aetrix Electronics and suitable for test equipment, guidance systems, heads-up displays, and battery-operated systems requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for DG405DY+ 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.
DG405DY+ belongs to Maxim's legacy high-speed analog switch family, engineered specifically for precision signal routing in environments requiring rail-to-rail operation, low charge injection, and guaranteed matching - especially in military-grade and automated test systems.
FAQ
What is the operating temperature range for DG405DY+?
The DG405DY+ is specified for −40°C to +85°C operation, validated across the full range for parameters including on-resistance match, off-leakage (<5nA at +85°C), and switching speed. This makes DG405DY+ suitable for industrial control cabinets and vehicle-mounted test gear where ambient temperatures exceed commercial grade limits.
Does DG405DY+ support single-supply operation?
Yes, DG405DY+ supports single-supply operation from +10V to +30V. When used this way, analog signals can swing rail-to-rail from ground (GND) to V+, provided VL remains at +5V. The device maintains full specification compliance - including 2Ω max rDS(ON) match and 15pC max charge injection - under single-supply conditions.
What is the purpose of the VL pin on DG405DY+?
The VL pin on DG405DY+ sets the logic threshold voltage and must be connected to +5V for TTL compatibility. It is electrically isolated from V+ and V−, allowing clean digital control even when analog supplies operate at ±15V or +24V. Leaving VL unconnected or tying it to V+ degrades noise immunity and may cause erratic switching behavior in DG405DY+.
Can DG405DY+ handle analog signals beyond its supply rails?
No - DG405DY+ does not support overvoltage-tolerant operation. Signals applied to S or D pins must remain within V− and V+, as clamping diodes only protect against brief excursions beyond those rails (per Absolute Maximum Ratings). For signals exceeding supply rails, external blocking diodes or dedicated overvoltage-protected switches are required - DG405DY+ itself is not rated for such use.
How does DG405DY+ differ from DG401DY+ and DG403DY+?
DG405DY+ is a dual SPST (normally open) switch; DG401DY+ is also dual SPST but lacks the S3/S4 and D3/D4 pins found in DG403/DG405 packages; DG403DY+ is dual SPDT with two NO/NC channels. Pinouts differ significantly: DG405DY+ uses pins 3/6 for S1/S2 and 1/8 for D1/D2, while DG401DY+ maps S1/S2 to pins 9/16 and D1/D2 to 1/8 - making them not pin-compatible despite shared performance specs.
DG405DY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- DPST - NO
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 45Ohm
- Channel-to-Channel Matching (ΔRon):
- 500mOhm
- Voltage - Supply, Single (V+):
- 10V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 150ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 10pC
- Channel Capacitance (CS(off), CD(off)):
- 12pF, 12pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -90dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG405DY+ FAQ
1.How can I place an order for DG405DY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG405DY+ 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 DG405DY+ reliable?
The price and inventory of DG405DY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG405DY+ is usually 5 days.
3.What payment methods are accepted for DG405DY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG405DY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG405DY+?
DG405DY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG405DY+ 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 DG405DY+?
For technical support, including DG405DY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG405DY+ requirements.
6.How does Aetrix verify that DG405DY+ is sourced from the original manufacturer or authorized distributors?
All DG405DY+ 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 DG405DY+ meets industry standards.
7.What is the process for return or replacement of DG405DY+?
All DG405DY+ units undergo pre-shipment inspection (PSI). If there is an issue with DG405DY+, 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 DG405DY+ part is unused and in its original packaging.
Return procedure for DG405DY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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