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Analog Devices Inc./Maxim Integrated DG419DY+
- Part No.:
- DG419DY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG419DY+.pdf
- Description:
- IC SWITCH SPDT X 1 35OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:541
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Product details
Overview
DG419DY+ from Maxim Integrated is a precision SPDT analog switch with guaranteed 3Ω max on-resistance matching, 4Ω max on-resistance flatness, and <5nA off-leakage at +85°C, operating from ±4.5V to ±20V or +10V to +30V supplies - used in audio signal routing, test equipment, and battery-operated systems requiring rail-to-rail signal handling and low charge injection (10pC max).
For engineers reviewing the DG419DY+ datasheet, DG419DY+ pinout, DG419DY+ application, or DG419DY+ equivalent, this page delivers verified electrical parameters, truth-table–validated switching behavior, thermal leakage performance, supply flexibility, and real-world design context for high-precision analog multiplexing and signal path control.
Technical Context
The DG419DY+ implements a monolithic CMOS SPDT architecture with one normally closed (S1) and one normally open (S2) channel, controlled by a single TTL/CMOS-compatible logic input (IN). Its silicon-gate 44V process ensures robust ESD tolerance (2000V min per Method 3015.7) and stable RDS(ON) across temperature and signal voltage.
Switching is break-before-make (tD ≤ 13ns), with tON ≤ 175ns and tOFF ≤ 145ns under ±15V conditions. On-capacitance (CD(ON)/CS(ON)) is 30pF, off-isolation rejection ratio is 68dB, and crosstalk between S1/S2 is 85dB - confirming suitability for high-fidelity, low-crosstalk analog routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(ON) | 35Ω max - ensures minimal signal attenuation and voltage drop across full analog range (±15.5V) |
| ΔRDS(ON) | 3Ω max - guarantees matched gain/attenuation in differential or dual-path applications |
| RFLAT(ON) | 4Ω max - maintains consistent channel resistance over entire signal swing, critical for precision sampling |
| Charge Injection | 10pC max - minimizes voltage glitch at sample-hold nodes, reducing acquisition settling time |
| IOFF (S1/S2) | <5nA at +85°C - enables long-hold-time integrity in low-power data acquisition systems |
| tON/tOFF | ≤175ns / ≤145ns - supports >5MHz switching rates in automated test and comms signal routing |
| OIRR | 68dB - suppresses feedthrough from active to inactive channel, preserving signal purity |
Pinout & Package
Package: 8-pin SOIC (Small Outline Integrated Circuit), RoHS-compliant, surface-mount, JEDEC MS-012AC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | D (Drain) | Common analog terminal shared by both SPDT paths; connects to load or signal source |
| 2 | S1 (Source 1) | Normally closed analog path - conducts when IN = 0; used for default signal continuity |
| 3 | GND | Logic ground reference; must be tied to system digital ground for proper level translation |
| 4 | V+ | Analog positive supply rail; supports up to +30V single-supply or +20V bipolar operation |
| 5 | VL | Logic supply input; set to +5V for TTL compatibility or V+ for CMOS-level inputs |
| 6 | IN | Active-high digital control input; drives internal gate logic to select S1 (IN=0) or S2 (IN=1) |
| 7 | V− | Analog negative supply rail; required for bipolar operation down to −20V |
| 8 | S2 (Source 2) | Normally open analog path - conducts only when IN = 1; enables alternate signal selection |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed RDS(ON) match | 3Ω max between S1 and S2 channels - eliminates gain mismatch in dual-path instrumentation |
| Rail-to-rail signal handling | Supports analog signals from V− to V+ - preserves full dynamic range without clipping |
| Bipolar/single-supply flexibility | Operates from ±4.5V to ±20V or +10V to +30V - simplifies power architecture in mixed-signal systems |
| Low charge injection | 10pC max - reduces hold-step error in precision sample-and-hold circuits |
| ESD tolerance | 2000V min per Method 3015.7 - enhances reliability during board assembly and field handling |
Applications
| Audio Signal Routing | Test Equipment Multiplexing |
|---|---|
|
Use Scenario: Switching between multiple microphone preamp outputs to a single ADC in professional audio interfaces. IC Role / Device Role / Timing Role: SPDT analog switch selecting between two analog signal sources with sub-10pC charge injection to prevent audible pop artifacts. Use Value: Maintains signal fidelity across ±10V audio range while enabling silent, glitch-free channel changes via TTL-level control. |
Use Scenario: Routing DUT signals to different measurement instruments (oscilloscope, spectrum analyzer, DMM) in automated test racks. IC Role / Device Role / Timing Role: Precision SPDT switch providing low RDS(ON) matching and high off-isolation (68dB) to prevent cross-channel interference. Use Value: Ensures measurement accuracy by eliminating signal bleed-through and preserving source impedance integrity during reconfiguration. |
| Battery-Operated Data Loggers | Guidance System Sensor Interfaces |
|
Use Scenario: Multiplexing thermocouple, RTD, and strain gauge inputs into a low-power SAR ADC in portable environmental monitors. IC Role / Device Role / Timing Role: Low-leakage (≤5nA at +85°C), low-power (35µW max) analog switch enabling multi-sensor scanning without hold capacitor discharge. Use Value: Extends battery life while maintaining >16-bit effective resolution through minimal off-state current and rail-to-rail input support. |
Use Scenario: Selecting between redundant inertial measurement unit (IMU) outputs in aerospace guidance electronics. IC Role / Device Role / Timing Role: High-reliability SPDT switch with 2000V ESD rating and −40°C to +85°C operation ensuring fault-tolerant signal path management. Use Value: Delivers uninterrupted sensor data flow during hot-swap or failover events, with break-before-make timing preventing short-circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1419BRMZ | Higher RDS(ON) (4.7Ω typ), lower supply range (±15V max), 12-bit THD spec included | Better suited for audio DAC output switching where harmonic distortion matters more than leakage | Prefer ADG1419BRMZ if THD < −100dB is required and supply rails are limited to ±15V |
| TS5A23157DCUR | Lower voltage rating (+5.5V max), higher leakage (>100nA at +85°C), 300ns tON | Targeted at low-voltage portable logic-level routing, not precision bipolar analog paths | Choose TS5A23157DCUR only for 3.3V/5V single-supply consumer applications - not for ±15V industrial signal chains |
Compared with DG419DY+, ADG1419BRMZ offers superior audio linearity but narrower supply range and higher cost, while TS5A23157DCUR provides compact packaging and lower price at the expense of leakage, speed, and voltage capability - making DG419DY+ the optimal choice for wide-range, low-leakage, high-isolation SPDT switching in industrial and test environments.
Availability
DG419DY+ is available at Aetrix Electronics and suitable for audio signal routing, test equipment multiplexing, and battery-operated data loggers requiring stable component supply, extended temperature operation (−40°C to +85°C), and long-term manufacturing continuity.
Supply support for DG419DY+ 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 and mixed-signal ICs for industrial, communications, and automotive applications, with emphasis on precision, reliability, and integration.
The DG419DY+ belongs to Maxim's precision analog switch family, engineered specifically for applications demanding low on-resistance mismatch, ultra-low leakage, and robust bipolar supply operation in harsh environments.
FAQ
What is the maximum analog signal range supported by the DG419DY+?
The DG419DY+ supports rail-to-rail analog signals from V− to V+, with absolute maximum ratings of ±20V for bipolar operation and up to +30V for single-supply use. At ±15V supplies, the guaranteed analog range is ±15.5V, enabling full utilization of high-dynamic-range sensors and amplifiers without clipping.
Does the DG419DY+ require separate logic and analog supplies?
Yes - the DG419DY+ has dedicated VL (logic supply) and V+/V− (analog supplies). VL must be set to +5V for TTL compatibility or tied to V+ for CMOS-level inputs. This separation prevents digital noise coupling into sensitive analog paths and ensures reliable switching across temperature and supply variations.
How does the DG419DY+ achieve its guaranteed 3Ω on-resistance matching?
The DG419DY+ achieves 3Ω max RDS(ON) matching between S1 and S2 through laser-trimmed process control and matched transistor layout in Maxim's 44V silicon-gate CMOS process. This matching is tested and guaranteed over the full −40°C to +85°C temperature range and ±15.5V signal swing, not just at room temperature.
Can the DG419DY+ operate with unbalanced supplies like +24V and −5V?
Yes - the DG419DY+ supports unbalanced supplies as long as the difference between V+ and V− does not exceed +44V. For example, +24V/V− = −5V yields a 29V differential, well within limits. The analog signal range adjusts accordingly (−5V to +24V), and all specifications remain valid provided supply sequencing follows V+ → VL → V−.
What is the significance of the break-before-make timing in the DG419DY+?
The DG419DY+ guarantees a break-before-make interval (tD) of ≤13ns, preventing momentary short-circuiting between S1 and S2 during state transitions. This is critical in applications like sensor redundancy switching or power domain isolation, where simultaneous conduction could cause latch-up, ground bounce, or signal corruption.
DG419DY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- 3Ohm (Max)
- Voltage - Supply, Single (V+):
- 10V ~ 30V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 175ns, 145ns
- -3db Bandwidth:
- -
- Charge Injection:
- 3pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
DG419DY+ FAQ
1.How can I place an order for DG419DY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG419DY+ 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 DG419DY+ reliable?
The price and inventory of DG419DY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG419DY+ is usually 5 days.
3.What payment methods are accepted for DG419DY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG419DY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG419DY+?
DG419DY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG419DY+ 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 DG419DY+?
For technical support, including DG419DY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG419DY+ requirements.
6.How does Aetrix verify that DG419DY+ is sourced from the original manufacturer or authorized distributors?
All DG419DY+ 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 DG419DY+ meets industry standards.
7.What is the process for return or replacement of DG419DY+?
All DG419DY+ units undergo pre-shipment inspection (PSI). If there is an issue with DG419DY+, 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 DG419DY+ part is unused and in its original packaging.
Return procedure for DG419DY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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