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Analog Devices Inc./Maxim Integrated DG405DJ+
- Part No.:
- DG405DJ+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG405DJ+.pdf
- Description:
- IC SWITCH DPST-NOX2 45OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,571
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Product details
Overview
DG405DJ+ 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 military radios.
For engineers reviewing the DG405DJ+ datasheet, DG405DJ+ pinout, DG405DJ+ application, or DG405DJ+ equivalent, this device is selected for rail-to-rail analog switching with sub-150ns turn-on time, <5nA off-leakage at +85°C, and TTL/CMOS logic compatibility under ±4.5V to ±20V or +10V to +30V supplies.
Technical Context
The DG405DJ+ implements two independent SPST (single-pole/single-throw) 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+, supporting true rail-to-rail signal handling.
It uses a 44V silicon-gate process and substrate-connected V+ for robust ESD tolerance and stable leakage performance. Logic interface operates at VL = +5V (TTL-compatible) or referenced to V+ (CMOS-compatible), with input thresholds fixed at VINH = +2.4V and VINL = +0.8V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Dual SPST, normally open - enables independent channel enable/disable without inter-channel coupling |
| On-Resistance Match | 2Ω max - ensures ≤2Ω difference between S1/D1 and S2/D2 rDS(ON), critical for matched gain paths |
| On-Resistance Flatness | 3Ω max over ±10V - maintains consistent insertion loss across full signal swing in audio and instrumentation |
| Charge Injection | 15pC max - limits voltage glitch on sample-hold capacitors, preserving DC accuracy in data acquisition |
| Off-Leakage Current | <5nA at +85°C - prevents signal drift in high-impedance sensor front-ends and battery-operated systems |
| Switching Speed | tON = 150ns max, tOFF = 100ns max - supports >5MHz multiplexing in communications and guidance systems |
| Supply Range | Bipolar: ±4.5V to ±20V; Single: +10V to +30V - allows operation in legacy ±15V industrial rails or modern +24V systems |
Pinout & Package
Package: 16-pin narrow SO (small outline). Body width 3.9mm, lead pitch 0.050", RoHS-compliant, JEDEC MS-012AC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | D1, D2 (Drain) | Analog output terminals - bidirectional signal path; connect to load or downstream stage |
| 2, 7 | N.C. | No internal connection - must be left unconnected; no pull-up/down or bypass required |
| 3, 6 | S1, S2 (Source) | Analog input terminals - accept rail-to-rail signals from V− to V+; symmetric with drains |
| 4, 5 | IN1, IN2 | Active-high digital control inputs - drive with +5V TTL/CMOS; 0.8V/2.4V thresholds ensure noise margin |
| 11 | V+ | Positive supply input - connected to substrate; must be powered before VL and V− for safe sequencing |
| 12 | VL | Logic supply input - set to +5V for TTL compatibility; tied to V+ for CMOS-level operation |
| 13 | GND | Analog/digital reference ground - common return for supplies and logic; separate from signal ground in mixed-signal layouts |
| 14 | V− | Negative supply input - establishes lower analog rail; reverse polarity protection not integrated |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ without clipping - essential for ±12V audio and ±15V instrumentation interfaces |
| Guaranteed rDS(ON) match | 2Ω max mismatch between channels - eliminates gain error in differential or dual-path measurement systems |
| Low charge injection (15pC) | Minimizes hold-step error in sample-and-hold circuits - enables 14-bit+ accuracy without external correction |
| Sub-100ns tOFF | Ensures fast channel isolation - critical for time-division multiplexing in PBX and military radio IF stages |
| TTL/CMOS logic compatibility | Operates with standard logic families at VL = +5V - eliminates level-shifter requirements in FPGA/microcontroller interfaces |
Applications
| Sample-and-Hold Circuits | Test Equipment |
|---|---|
Use Scenario: Precision DC-coupled sampling of ±10V sensor outputs at 100kSPS in automated test fixtures. IC Role / Device Role / Timing Role: DG405DJ+ acts as the acquisition switch, gating analog input to a 1µF hold capacitor with minimal charge kickback. Use Value: 15pC max charge injection and 3Ω rFLAT(ON) limit hold-step error to <0.5mV, preserving 16-bit effective resolution. |
Use Scenario: Signal routing matrix in benchtop multimeters and oscilloscope front-ends switching between voltage, current, and resistance measurement paths. IC Role / Device Role / Timing Role: DG405DJ+ provides isolated, low-leakage switching between instrument channels with independent control per path. Use Value: <5nA off-leakage at +85°C prevents measurement drift during extended thermal soak tests. |
| Military Radios | Heads-Up Displays |
Use Scenario: IF signal selection and antenna switching in VHF/UHF tactical radios operating across −40°C to +85°C. IC Role / Device Role / Timing Role: DG405DJ+ serves as RF front-end switch controlling transmit/receive paths with fast 100ns tOFF to prevent TX/RX crosstalk. Use Value: 44V process withstands transient surges; guaranteed specs over full military temp range eliminate derating. |
Use Scenario: Analog video signal multiplexing between HUD display drivers and multiple sensor inputs (e.g., FLIR, radar overlay). IC Role / Device Role / Timing Role: DG405DJ+ routes composite video or RGB signals with rail-to-rail capability and low crosstalk (90dB). Use Value: 12pF CD(OFF)/CS(OFF) minimizes ghosting; 39pF CD(ON) ensures bandwidth >20MHz for SVGA timing. |
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 |
|---|---|---|---|
| ADG405BRZ | Higher rDS(ON) (45Ω typ vs. 20Ω typ), no guaranteed rDS(ON) match, 25pC charge injection | Limited to lower-precision industrial muxing; unsuitable for matched-path or low-glitch S&H | Select DG405DJ+ when channel matching or charge injection <15pC is required |
| TS5A23157DRCR | Single-supply only (+1.65V to +5.5V), 0.9Ω rDS(ON), but max analog range limited to VCC–0.3V to GND+0.3V | Only viable for low-voltage portable audio; cannot handle ±15V or rail-to-rail bipolar signals | Choose DG405DJ+ for bipolar supply operation, wide analog range, or military temperature support |
Compared with ADG405BRZ and TS5A23157DRCR, the DG405DJ+ uniquely delivers guaranteed 2Ω channel matching, rail-to-rail ±15V analog switching, and <5nA off-leakage at +85°C - making it the only option qualified for precision military and aerospace signal routing where parameter consistency across temperature and channel pair is non-negotiable.
Availability
DG405DJ+ is available at Aetrix Electronics and suitable for test equipment, military radios, heads-up displays, and sample-and-hold circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG405DJ+ 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 demanding industrial, automotive, and defense applications.
The DG405DJ+ belongs to Maxim's legacy high-speed analog switch family, engineered specifically for precision signal routing in environments requiring guaranteed matching, low leakage, and robust bipolar supply operation.
FAQ
What is the maximum analog signal range supported by the DG405DJ+?
The DG405DJ+ supports analog signals from V− to V+ across its full specified supply range. With ±15V supplies, it handles ±15V rail-to-rail signals; with +24V single supply, it switches 0V to +24V. This is enabled by its 44V silicon-gate process and internal level-shifting architecture - confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables of the official datasheet.
Does the DG405DJ+ require external blocking diodes for overvoltage protection?
No, external blocking diodes are optional and only recommended if strict power-supply sequencing cannot be guaranteed. The DG405DJ+ includes internal clamping diodes that protect S/D pins against signals exceeding V+ or V−, provided forward current is limited to 20mA. Per Maxim's Applications Information section, diodes reduce analog range by 1V but preserve low rDS(ON) and leakage specs.
Can the DG405DJ+ operate with VL tied directly to V+?
Yes - tying VL to V+ configures the DG405DJ+ for CMOS-level logic compatibility, with input thresholds scaling proportionally to V+. This is explicitly supported in the "Logic Inputs" subsection of the Applications Information. However, TTL compatibility (VINH = +2.4V, VINL = +0.8V) requires VL = +5V, as stated in the Electrical Characteristics table conditions.
What is the guaranteed on-resistance flatness specification for DG405DJ+ over temperature?
The DG405DJ+ guarantees 3Ω max on-resistance flatness (rFLAT(ON)) over the full analog signal range (±10V) at TMIN to TMAX, per the Electrical Characteristics table. This spec holds across all temperature grades including the −40°C to +85°C range of the DG405DJ+ variant, ensuring consistent insertion loss in temperature-varying environments like avionics and outdoor test gear.
Is the DG405DJ+ pin-compatible with the original DG405 series?
Yes - the DG405DJ+ is a plug-in upgrade for industry-standard DG405 devices, retaining identical pinout, package (16-pin narrow SO), and logic interface. As stated in the "New Features" section, it offers improved rDS(ON) match, charge injection, and off-leakage while maintaining full functional and mechanical compatibility with legacy DG405 designs.
DG405DJ+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- Through Hole
- Supplier Device Package:
- 16-PDIP
DG405DJ+ FAQ
1.How can I place an order for DG405DJ+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG405DJ+ 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 DG405DJ+ reliable?
The price and inventory of DG405DJ+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG405DJ+ is usually 5 days.
3.What payment methods are accepted for DG405DJ+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG405DJ+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG405DJ+?
DG405DJ+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG405DJ+ 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 DG405DJ+?
For technical support, including DG405DJ+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG405DJ+ requirements.
6.How does Aetrix verify that DG405DJ+ is sourced from the original manufacturer or authorized distributors?
All DG405DJ+ 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 DG405DJ+ meets industry standards.
7.What is the process for return or replacement of DG405DJ+?
All DG405DJ+ units undergo pre-shipment inspection (PSI). If there is an issue with DG405DJ+, 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 DG405DJ+ part is unused and in its original packaging.
Return procedure for DG405DJ+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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