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Analog Devices Inc./Maxim Integrated DG409DJ+
- Part No.:
- DG409DJ+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG409DJ+.pdf
- Description:
- IC SWITCH SP4T X 2 100OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:119
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Product details
Overview
DG409DJ+ 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, and operates from ±5V to ±20V dual supplies or +5V to +30V single supply - enabling use in data-acquisition front-ends and test equipment where channel-to-channel consistency is critical.
For engineers reviewing the DG409DJ+ datasheet, DG409DJ+ pinout, DG409DJ+ application, or DG409DJ+ equivalent, key selection considerations include its -40°C to +85°C industrial temperature range, 16-pin plastic DIP package, rail-to-rail analog signal handling up to ±10V, and TTL/CMOS-compatible digital control inputs.
Technical Context
The DG409DJ+ implements dual independent 4:1 analog multiplexers with shared address and enable logic, supporting simultaneous or independent channel selection per bank (A/B). Its CMOS transmission-gate architecture ensures bidirectional conduction, zero-crossing switching capability, and minimal signal distortion across the full analog range.
Internal decoder logic accepts two address bits (A0, A1) and an active-low enable (EN) to select one of four input channels per output (DA, DB), with break-before-make timing (115ns typ) preventing momentary shorting. All analog terminals (S1A–S4A, S1B–S4B, DA, DB) support rail-to-rail voltage operation relative to V+ and V−.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±5V to ±20V dual or +5V to +30V single - supports industrial sensor interfaces and legacy ±15V systems without level-shifting. |
| On-Resistance (rDS(ON)) | 100Ω max at TA = −40°C to +85°C - ensures minimal gain error and settling time impact in precision amplifier feedback paths. |
| On-Resistance Matching | 8Ω max between channels - enables high-accuracy differential measurements and matched filter banks. |
| Charge Injection | 15pC max - reduces sampling glitches in sample-and-hold circuits using <1nF hold capacitors. |
| Analog Signal Range | ±10V at ±15V supplies - fully utilizes standard industrial DAC/ADC voltage ranges without clipping. |
| Enable Turn-On Time | 100ns typ (tON(EN)) - supports multiplexed ADC sampling rates up to ~5MHz with deterministic latency. |
| Input Leakage (IS(OFF)) | 5nA max at +85°C - preserves high-impedance sensor node integrity in battery-powered monitoring systems. |
| ESD Protection | >2000V HBM - meets MIL-STD-883 Method 3015.7, reducing board-level protection component count. |
Pinout & Package
Package: 16-pin plastic DIP (0.300" wide), JEDEC MS-001, lead finish Sn/Pb. Compatible with through-hole prototyping and legacy automated insertion equipment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 | A0, A1 | Binary address inputs selecting active channel (00–11) for both mux banks; TTL/CMOS compatible (VAL ≤0.8V, VAH ≥2.4V). |
| 2 | EN | Active-low enable controlling all switches; when high, all channels are open-circuit (high-Z state). |
| 3 | V− | Negative supply rail - must be connected for dual-supply operation; tied to GND for single-supply mode. |
| 4–7 | S1A–S4A | Bidirectional analog inputs for first 4:1 mux bank; electrically identical to outputs when enabled. |
| 8, 9 | DA, DB | Common analog outputs for A and B banks respectively; support rail-to-rail signal swing between V− and V+. |
| 10–13 | S4B–S1B | Bidirectional analog inputs for second 4:1 mux bank; pin order reversed vs. S1A–S4A per datasheet top view. |
| 14 | GND | Digital ground reference for logic inputs; isolated from analog signal path but shares common return in most layouts. |
| 15 | V+ | Positive supply rail - sets upper limit of analog signal range; decoupling required within 1cm for dynamic performance. |
Key Features
| Feature | Design Value |
|---|---|
| PIN-COMPATIBLE UPGRADE | Direct replacement for legacy DG409 with identical pinout and footprint - no PCB redesign needed for reliability or performance upgrades. |
| GUARANTEED CHANNEL MATCHING | ≤8Ω on-resistance variation between any two channels - eliminates calibration drift in multi-channel thermocouple or strain-gauge measurement systems. |
| LOW CHARGE INJECTION | ≤15pC maximum - limits voltage step error to <15mV on 1nF sample capacitors, critical for 12-bit+ SAR ADC accuracy. |
| Rail-to-Rail Signal Handling | Full analog swing from V− to V+ - supports unipolar 0–10V and bipolar ±10V industrial I/O standards without external clamping. |
| TTL/CMOS-Compatible Control | Logic thresholds defined at VAL ≤0.8V / VAH ≥2.4V - interoperates directly with microcontrollers, FPGAs, and logic families without interface buffers. |
| Low Power Consumption | 1.25mW max at +25°C - enables integration into power-constrained portable instrumentation without thermal derating. |
Applications
| Test Equipment Signal Routing | Data-Acquisition Multiplexing |
|---|---|
|
Use Scenario: Automated test systems route multiple sensor outputs to a single high-precision digitizer. IC Role / Device Role / Timing Role: Dual 4:1 analog mux selects one of eight total inputs (4 per bank) under microcontroller control, enabling sequential scanning of thermocouples, RTDs, or pressure transducers. Use Value: Guaranteed 8Ω channel matching minimizes inter-channel gain error, while 15pC charge injection prevents hold-capacitor disturbance during switching - preserving 16-bit measurement integrity. |
Use Scenario: Industrial PLC modules condition and multiplex analog inputs before ADC conversion. IC Role / Device Role / Timing Role: DG409DJ+ acts as front-end signal selector for dual ADC channels, supporting simultaneous sampling of two independent 4-sensor groups (e.g., motor phase currents and temperatures). Use Value: ±20V dual-supply operation accommodates 4–20mA loop receivers and ±10V sensor outputs; −40°C to +85°C rating ensures reliability in cabinet-mounted controllers. |
| Audio Signal Switching | Guidance System Sensor Interface |
|
Use Scenario: Professional audio mixers switch line-level signals between processing paths without audible artifacts. IC Role / Device Role / Timing Role: Bidirectional analog switch routes stereo pairs (L/R) between preamp, EQ, and effects loops using separate A/B banks. Use Value: 100Ω max on-resistance and rail-to-rail swing preserve signal fidelity up to 20kHz; low crosstalk (−92dB) prevents channel bleed in critical monitoring applications. |
Use Scenario: Avionics subsystems interface redundant inertial sensors (gyros, accelerometers) to flight computers. IC Role / Device Role / Timing Role: DG409DJ+ selects primary or backup sensor outputs under fault-detection logic, providing fail-operational signal routing. Use Value: >2000V ESD protection withstands aircraft static discharge events; guaranteed leakage <5nA at +85°C maintains signal integrity in high-temperature avionics bays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG409BRZ | 44V max supply, 45Ω typical rDS(ON), but only 100ppm/°C on-resistance tempco vs. DG409DJ+'s 1200ppm/°C - tighter matching over temperature. | Requires 3.3V logic interface; lacks guaranteed 8Ω matching spec - needs system-level calibration for precision metrology. | Prefer ADG409BRZ for wide-supply, low-tempco designs; DG409DJ+ better for drop-in legacy upgrades and cost-sensitive industrial DIP layouts. |
| MAX4617CPE+ | Single 4:1 mux (not dual), 60Ω max rDS(ON), 5pC charge injection - lower glitch energy but half the channel density. | Requires two ICs to match DG409DJ+ functionality; smaller SOIC-16 package - unsuitable for existing DIP footprints. | Select MAX4617CPE+ only when ultra-low charge injection dominates over channel count and package compatibility. |
Compared with ADG409BRZ and MAX4617CPE+, the DG409DJ+ uniquely combines dual 4:1 functionality, 16-pin DIP packaging, guaranteed 8Ω matching, and industrial temperature range - making it optimal for retrofitting legacy test gear and space-constrained PLC modules where layout reuse is mandatory.
Availability
DG409DJ+ is available at Aetrix Electronics and suitable for test equipment signal routing, industrial data-acquisition multiplexing, audio switching, and guidance system sensor interfacing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG409DJ+ 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, automotive, and communications markets, with emphasis on reliability and specification guarantees.
The DG409DJ+ belongs to Maxim's enhanced DG408/DG409 family of precision CMOS analog multiplexers, engineered specifically for applications demanding guaranteed channel matching, low charge injection, and robust operation across industrial temperature extremes.
FAQ
What is the operating temperature range for the DG409DJ+?
The DG409DJ+ is rated for operation from −40°C to +85°C, meeting industrial temperature requirements. This range is confirmed in the Ordering Information table and Absolute Maximum Ratings section of the datasheet, and applies specifically to the DG409DJ+ variant with plastic DIP packaging. The device maintains guaranteed specifications-including on-resistance matching and leakage current-across this full range.
Does the DG409DJ+ support single-supply operation?
Yes, the DG409DJ+ supports single-supply operation from +5V to +30V. In this configuration, V− must be connected to GND. The datasheet specifies electrical characteristics for both dual-supply (±5V to ±20V) and single-supply (e.g., V+ = 12V, V− = 0V) conditions, including on-resistance, charge injection, and leakage parameters - all validated across the −40°C to +85°C range.
Is the DG409DJ+ pin-compatible with the original DG409?
Yes, the DG409DJ+ is explicitly described as a "pin-compatible plug-in upgrade" for the industry-standard DG409. Pin configurations, terminal functions, and physical dimensions match exactly - including identical 16-pin plastic DIP (P16-2) packaging. No PCB modifications are required to replace legacy DG409 parts with DG409DJ+ in existing designs.
What is the maximum analog signal voltage the DG409DJ+ can handle?
The DG409DJ+ supports rail-to-rail analog signal handling from V− to V+. With ±15V dual supplies, the analog range is ±10V (as specified in Electrical Characteristics); with +12V/0V single supply, it is 0V to +10V. Exceeding these limits risks exceeding absolute maximum ratings - the datasheet confirms VANALOG = ±10V under standard test conditions and notes that signal range scales with supply voltage.
How does the DG409DJ+ manage channel switching timing?
The DG409DJ+ uses break-before-make switching with a guaranteed 115ns minimum break interval (tOPEN), preventing momentary shorts between channels. Enable-controlled turn-on (tON(EN) = 100ns typ) and turn-off (tOFF(EN) = 300ns typ) times are specified under load, ensuring deterministic timing for synchronized sampling in data-acquisition systems. These values are measured with CL = 1.0nF and RL = 1kΩ per Figure 3.
DG409DJ+ 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:
- Through Hole
- Supplier Device Package:
- 16-PDIP
DG409DJ+ FAQ
1.How can I place an order for DG409DJ+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG409DJ+ 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 DG409DJ+ reliable?
The price and inventory of DG409DJ+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG409DJ+ is usually 5 days.
3.What payment methods are accepted for DG409DJ+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG409DJ+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG409DJ+?
DG409DJ+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG409DJ+ 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 DG409DJ+?
For technical support, including DG409DJ+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG409DJ+ requirements.
6.How does Aetrix verify that DG409DJ+ is sourced from the original manufacturer or authorized distributors?
All DG409DJ+ 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 DG409DJ+ meets industry standards.
7.What is the process for return or replacement of DG409DJ+?
All DG409DJ+ units undergo pre-shipment inspection (PSI). If there is an issue with DG409DJ+, 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 DG409DJ+ part is unused and in its original packaging.
Return procedure for DG409DJ+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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