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Vishay Siliconix DG408DJ
- Part No.:
- DG408DJ
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
DG408DJ.pdf
- Description:
- IC MUX 8:1 100OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,457
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Product details
Overview
DG408DJ from Vishay Siliconix is an 8-channel single-ended CMOS analog multiplexer that routes one of eight analog inputs to a common output under 3-bit binary address control (A0–A2), with TTL-compatible enable (EN) and break-before-make switching. It operates from ±5 V to ±20 V dual supplies or +5 V to +36 V single supply, delivers 100 Ω on-resistance, 20 pC charge injection, and 160 ns transition time-ideal for precision data acquisition and battery-powered instrumentation.
For engineers reviewing the DG408DJ datasheet, DG408DJ pinout, DG408DJ application, or DG408DJ equivalent, this page provides verified technical context, package-validated pin functions, real-world use-value per application, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The DG408DJ implements a silicon-gate CMOS architecture with epitaxial latchup protection and 44 V absolute maximum supply rating. Its decoder/driver stage accepts TTL-level A0–A2 and EN inputs across –40 °C to +85 °C, enabling robust channel selection without external level shifting.
Each switch exhibits bidirectional conduction, rail-to-rail analog signal blocking in the off state, and matched on-resistance (ΔRDS(on) ≤ 15 Ω). Break-before-make timing prevents crosstalk during channel transitions, and internal clamping diodes limit overvoltage stress on S/D pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance | 100 Ω max - ensures minimal signal attenuation and gain error in precision analog paths |
| Charge injection | 20 pC typ - reduces voltage glitching at output during channel switching |
| Transition time | 160 ns max - supports >3 MHz multiplexed sampling in high-speed DAQ systems |
| Supply range | ±5 V to ±20 V dual or +5 V to +36 V single - enables flexible power architecture in mixed-signal designs |
| Off isolation | –75 dB min at 1 MHz - suppresses crosstalk between inactive channels in dense routing |
| Leakage current | ±5 nA max (full temp range) - preserves accuracy in high-impedance sensor interfaces |
| Enable response | tON(EN) = 150 ns max - allows synchronized global reset across stacked multiplexers |
Pinout & Package
DG408DJ is supplied in a 16-pin plastic DIP package (JEDEC MS-012), 19.94 mm × 6.00 mm footprint, 3.81 mm height, with 2.54 mm lead pitch. Pin 1 is top-left corner (notch side), pin 16 bottom-right.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (S1) | Analog input channel 1 | Unidirectional analog source terminal; clamped to rails if driven beyond V+/V− |
| 2 (S2) | Analog input channel 2 | Same electrical behavior as S1; matched RDS(on) within 15 Ω vs. other channels |
| 3 (S3) | Analog input channel 3 | Valid for ±15 V signal swing with <5 nA leakage at full temperature range |
| 4 (S4) | Analog input channel 4 | Supports rail-to-rail operation; CD(off) = 26 pF enables <1% settling error at 100 kHz |
| 5 (S5) | Analog input channel 5 | Identical DC/AC specs to S1–S4; no performance degradation at 85 °C ambient |
| 6 (S6) | Analog input channel 6 | Compatible with single-supply +12 V operation; RDS(on) = 90 Ω typ at VS = 3 V |
| 7 (S7) | Analog input channel 7 | Low Q (5 pC typ, single-supply) minimizes transient error in medical front-ends |
| 8 (S8) | Analog input channel 8 | Final channel in 8:1 topology; same tTRANS and OIRR as all others |
| 9 (D) | Common analog output | Drain node shared by all switches; handles bidirectional current flow up to 30 mA |
| 10 (EN) | Enable control input | TTL-compatible active-high; forces all switches open when low (no current path) |
| 11 (A0) | LSB address bit | Logic threshold: 0.8 V low / 2.4 V high; Cin = 8 pF limits drive requirement |
| 12 (A1) | Mid address bit | Same VIH/VIL and loading as A0; decoded with A0/A2 to select S1–S8 |
| 13 (A2) | MSB address bit | Completes 3-bit decode; all three address pins must be stable before EN assertion |
| 14 (GND) | Digital ground reference | Separate from analog ground in layout; ties internal logic and decoder bias networks |
| 15 (V−) | Negative supply rail | Accepts –25 V min; powers analog core and clamp diodes; derated above 75 °C |
| 16 (V+) | Positive supply rail | Rated to +44 V max; supplies analog switches and level shifters; 6 mW/°C derating above 75 °C |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed tOPEN ≥ 10 ns - eliminates momentary short between adjacent channels during address changes |
| Rail-to-rail analog blocking | Blocks signals up to V+ and V− rails in off state - enables direct interface with op-amp outputs without external clamps |
| TTL-compatible control | Operates with standard 5 V logic families across full –40 °C to +85 °C - eliminates need for level translators in microcontroller-based systems |
| Single-supply capability | Functions from +5 V to +36 V with full spec compliance - simplifies power design in portable and industrial equipment |
| Latchup immunity | Epitaxial layer prevents SCR triggering - ensures reliability in noisy environments with fast transients |
Applications
| Data Acquisition Systems | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing 8 thermocouple or RTD sensor outputs into a single ADC channel for sequential digitization. IC Role / Device Role / Timing Role: Analog signal selector with low charge injection and matched on-resistance to minimize measurement offset and gain errors. Use Value: 20 pC charge injection and ≤15 Ω RDS(on) matching ensure <0.05% reading error across all 8 channels at 25 °C. |
Use Scenario: Switching between 8 microphone preamp outputs to feed a single audio codec or DSP input. IC Role / Device Role / Timing Role: Low-distortion analog path selector with –75 dB off-isolation at 1 kHz to prevent audible crosstalk. Use Value: 100 Ω RDS(on) and 26 pF CD(off) maintain flat frequency response to 20 kHz with <0.1 dB insertion loss. |
| ATE Systems | Battery-Powered Instrumentation |
Use Scenario: Configuring test signal paths in automated test equipment where multiple DUTs share stimulus and measurement resources. IC Role / Device Role / Timing Role: High-reliability channel router with break-before-make action to prevent short-circuits during reconfiguration. Use Value: tTRANS = 160 ns and tON(EN) = 150 ns support sub-microsecond test sequence execution with deterministic timing. |
Use Scenario: Selecting sensor inputs in handheld multimeters or portable oscilloscopes powered by 9 V batteries. IC Role / Device Role / Timing Role: Ultra-low-power analog switch with 10 μA supply current enabling >1000 hours of standby operation. Use Value: ISUPPLY = 10 μA max at full temperature range extends battery life while maintaining rail-to-rail signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4051ACPP+ | 100 Ω RDS(on) max, but only ±5.5 V supply range; 50 pC charge injection; SOIC-16 only | Not suitable for ±15 V or +36 V single-supply systems; higher glitch energy limits use in precision DAQ | Select when operating strictly within 0 V to +5.5 V or ±5 V rails and SOIC packaging is preferred |
| ADG1408BRUZ | 4.7 Ω RDS(on) typ, but 16-bit compatible logic; requires external VLOGIC; TSSOP-16 only; higher cost | Targeted at high-precision, low-noise applications where <5 Ω on-resistance justifies added complexity and cost | Select when sub-10 Ω on-resistance and guaranteed monotonicity are required, and board space permits TSSOP |
Compared with MAX4051ACPP+ and ADG1408BRUZ, DG408DJ offers wider supply flexibility (±20 V / +36 V), lower charge injection (20 pC vs. 50 pC), and DIP packaging for prototyping-making it optimal for industrial DAQ and legacy system upgrades where rail range and ease of hand-soldering matter most.
Availability
DG408DJ is available at Aetrix Electronics and suitable for data acquisition systems, audio routing hardware, and battery-powered instrumentation requiring stable component supply, long-term lifecycle support, and through-hole assembly compatibility.
Supply support for DG408DJ 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
Vishay Siliconix is a global semiconductor manufacturer specializing in discrete components and analog ICs, with leadership in MOSFETs, diodes, optoelectronics, and precision analog switches.
DG408DJ belongs to Vishay's high-performance analog multiplexer product line, engineered for rail-to-rail signal handling, low distortion, and robust operation in industrial, test, and portable instrumentation.
FAQ
What is the maximum supply voltage rating for DG408DJ?
DG408DJ has an absolute maximum supply rating of 44 V between V+ and V− terminals. This allows operation from ±20 V dual supplies or up to +36 V single supply. Exceeding 44 V differential may cause permanent damage. The device is not rated for 44 V on a single rail relative to ground unless V− is tied to GND and V+ ≤ 44 V.
Does DG408DJ support single-supply operation?
Yes, DG408DJ supports true single-supply operation from +5 V to +36 V with V− connected to GND. In this configuration, analog signals can swing from 0 V to V+, and specifications including RDS(on) = 90 Ω typ and tTRANS = 180 ns are guaranteed at +12 V supply. Logic inputs remain TTL-compatible.
What is the function of the EN pin on DG408DJ?
The EN (enable) pin on DG408DJ is an active-high TTL-compatible control that globally disables all eight analog switches when low. When EN = 0 V, no channel conducts regardless of A0–A2 state. When EN = 2.4 V min, channel selection resumes per the address inputs. tON(EN) = 150 ns max ensures fast system-level reset.
How does DG408DJ handle overvoltage conditions on analog inputs?
DG408DJ includes internal clamping diodes on all Sx and D pins. Signals exceeding V+ or falling below V− forward-bias these diodes, limiting voltage excursion to ~0.7 V beyond the rails. To avoid excessive current, external series resistance must limit diode current to ≤20 mA. For enhanced protection, Vishay recommends adding 1N4148 diodes in series with V+ and V−.
Is DG408DJ pin-compatible with other Vishay multiplexers like DG409DJ?
No, DG408DJ is not pin-compatible with DG409DJ. DG408DJ uses an 8:1 single-ended topology with pins S1–S8, D, A0–A2, EN, V+, V−, and GND. DG409DJ is a dual 4:1 differential mux with paired S1a/S1b through S4a/S4b, Da/Db, and only A0/A1 - sharing only V+, V−, GND, EN, and package outline, but differing in signal pin count and assignment.
DG408DJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 15Ohm (Max)
- Voltage - Supply, Single (V+):
- 5V ~ 36V
- Voltage - Supply, Dual (V±):
- ±5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 150ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 20pC
- Channel Capacitance (CS(off), CD(off)):
- 3pF, 26pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
DG408DJ FAQ
1.How can I place an order for DG408DJ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG408DJ 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 DG408DJ reliable?
The price and inventory of DG408DJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG408DJ is usually 5 days.
3.What payment methods are accepted for DG408DJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG408DJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG408DJ?
DG408DJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG408DJ 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 DG408DJ?
For technical support, including DG408DJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG408DJ requirements.
6.How does Aetrix verify that DG408DJ is sourced from the original manufacturer or authorized distributors?
All DG408DJ 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 DG408DJ meets industry standards.
7.What is the process for return or replacement of DG408DJ?
All DG408DJ units undergo pre-shipment inspection (PSI). If there is an issue with DG408DJ, 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 DG408DJ part is unused and in its original packaging.
Return procedure for DG408DJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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