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Renesas DG408DY-T
- Part No.:
- DG408DY-T
- Manufacturer:
- Renesas
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG408DY-T.pdf
- Description:
- IC MUX 8:1 100OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,535
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Product details
Overview
DG408DY-T from Renesas Electronics is a single 8-channel CMOS analog multiplexer with TTL/CMOS-compatible digital decode, 100Ω max ON resistance at 25°C, <250ns transition time, and ±15V analog signal range under dual supply. It serves as a drop-in upgrade for DG508A in data acquisition and audio switching systems requiring low charge injection and high channel isolation.
For engineers reviewing the DG408DY-T datasheet, DG408DY-T pinout, DG408DY-T application, or DG408DY-T equivalent, key selection criteria include its 16-pin SOIC package, EN-controlled channel selection, single/dual supply flexibility (up to ±20V), and verified performance in sample-and-hold and automatic test equipment circuits.
Technical Context
The DG408DY-T implements an integrated 3-bit binary decoder driving eight bilateral analog switches, with internal voltage reference for stable logic thresholds across temperature. Its silicon-gate process enables latch-up immunity and supports operation from -40°C to +85°C.
Each switch features matched ON-resistance (<15Ω matching between channels), low OFF-capacitance (26pF typical), and sub-20pC charge injection-critical for precision sampling. Digital inputs tolerate voltages beyond V+/V− rails via clamping diodes, with logic thresholds fixed at 0.8V (low) and 2.4V (high).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ON Resistance (max) | 100Ω at 25°C - ensures minimal signal attenuation and gain error in precision analog paths |
| Transition Time | <250ns - enables fast channel switching in high-throughput data acquisition |
| Analog Signal Range | ±15V (dual supply) or 0–12V (single supply) - supports industrial sensor interfaces and audio line-level signals |
| Charge Injection | 20pC max - reduces hold-step error in sample-and-hold circuits without additional correction |
| OFF Isolation | -75dB at 100kHz - prevents crosstalk between inactive channels in multi-signal monitoring |
| Supply Range | Single: +5V to +34V; Split: ±5V to ±20V - accommodates legacy and modern rail-flexible designs |
| Logic Compatibility | TTL/CMOS - interfaces directly with microcontrollers, FPGAs, and legacy logic without level shifters |
Pinout & Package
Package: 16-lead SOIC (M16.15), 3.90–4.00 mm width, 9.80–10.00 mm length, 1.35–1.75 mm height, RoHS-compliant matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 A0 | LSB address input | Selects channel 1–8 via 3-bit binary code (A2:A0); requires clean digital edges to avoid partial switching |
| 2 EN | Enable control | High-active enable; pulls all switches open when low - essential for power gating and multi-device arbitration |
| 3 V− | Negative supply rail | Bilaterial switch substrate connection; must be ≤ V+ − 44V to prevent damage |
| 4–7, 9–12 S1–S8 | Analog inputs | Eight bidirectional source terminals; pin order follows sequential numbering (S1=pin4, S2=pin5…S8=pin9) |
| 8 D | Common drain/output | Single-ended analog output node; connects to ADC input, amplifier summing junction, or instrumentation front-end |
| 13 V+ | Positive supply rail | Substrate bias terminal; sets upper analog voltage limit and powers internal decode circuitry |
| 14 GND | Logic ground reference | Separate from analog return; decoupling near pin14 minimizes digital noise coupling into analog path |
| 15 A2 | MSB address input | Most significant bit of channel select bus; pins 15 (A2), 16 (A1), and 1 (A0) form full 3-bit address |
| 16 A1 | Mid-bit address input | Completes 3-bit decode; all three address pins must be stable before EN assertion to avoid glitch-induced channel misselection |
Key Features
| Feature | Design Value |
|---|---|
| Bilateral analog switching | Signal flow direction independent - supports AC-coupled audio routing and bidirectional sensor excitation |
| Low ON-resistance matching | ≤15Ω ΔrDS(ON) - maintains channel-to-channel gain consistency in multi-channel calibration systems |
| Split or single supply operation | Eliminates need for external level shifters when interfacing with mixed-rail systems (e.g., +3.3V logic + ±12V analog) |
| Reduced charge injection | 20pC max - lowers hold capacitor size requirements and simplifies anti-aliasing filter design in SAR ADC front-ends |
| Latch-up immunity | Epitaxial layer prevents destructive latch-up - critical for reliability in unregulated industrial power environments |
Applications
| Data Acquisition Systems | Audio Switching Systems |
|---|---|
Use Scenario: Multiplexing 8 thermocouple or RTD inputs into a single precision ADC in PLC modules. IC Role / Device Role / Timing Role: Analog signal router with channel-select decoding and low-offset switching. Use Value: 100Ω ON resistance and <250ns transition time enable 10kSPS throughput without settling-time penalties. | Use Scenario: Routing line-level stereo signals between multiple sources (CD, phono, aux) and amplifiers in pro-audio mixers. IC Role / Device Role / Timing Role: Bidirectional analog path selector with low THD and wide dynamic range. Use Value: ±15V analog range and -75dB OFF isolation prevent audible crosstalk and preserve signal fidelity. |
| Automatic Test Equipment | Sample and Hold Circuits |
Use Scenario: Configuring stimulus/sense paths across DUT pins during functional testing of mixed-signal ICs. IC Role / Device Role / Timing Role: High-reliability signal path manager with fast enable-controlled channel blanking. Use Value: EN pin allows synchronized channel disabling during test vector transitions, eliminating transient glitches. | Use Scenario: Capturing fast-changing sensor outputs (e.g., vibration, pressure transients) before digitization. IC Role / Device Role / Timing Role: Low-charge-injection analog gate preceding hold capacitor. Use Value: 20pC charge injection limits hold-step error to <1 LSB in 16-bit systems using 10nF hold capacitors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG408BRZ | Higher ON resistance (120Ω typ), slower tTRANS (300ns), same 16-pin SOIC package | Lower bandwidth suitability; less ideal for >100kHz signal routing | Prefer DG408DY-T where <250ns switching and <100Ω RON are required |
| MAX4617ESA+ | Lower supply voltage range (±5V max), higher charge injection (25pC), different pinout (EN on pin1) | Not suitable for ±15V industrial sensors; requires PCB redesign due to non-compatible pin mapping | Choose DG408DY-T for legacy DG508A drop-in replacement with extended voltage support |
Compared with ADG408BRZ and MAX4617ESA+, the DG408DY-T delivers superior switching speed and lower ON resistance within the same SOIC footprint, making it optimal for high-fidelity data acquisition and demanding industrial signal routing where channel matching and settling time are critical.
Availability
DG408DY-T is available at Aetrix Electronics and suitable for data acquisition systems, audio switching systems, and automatic test equipment requiring stable component supply, long-term manufacturability, and RoHS-compliant packaging.
Supply support for DG408DY-T 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
Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and IoT applications.
The DG408DY-T belongs to Renesas' precision analog multiplexer product line, engineered for high-reliability signal routing in industrial measurement, test instrumentation, and audio infrastructure where low distortion, rail-to-rail analog handling, and logic compatibility are mandatory.
FAQ
What is the maximum allowable supply voltage difference for DG408DY-T?
The DG408DY-T supports a maximum V+ to V− differential of 44V, as specified in Absolute Maximum Ratings. This allows operation from ±20V split supplies or up to +34V single supply. Exceeding 44V risks permanent damage, even if individual rail voltages remain within range. Always verify total differential voltage in system-level stress analysis before deployment.
Does DG408DY-T support single-supply operation with 3.3V logic control?
Yes, DG408DY-T accepts TTL/CMOS logic inputs with thresholds of 0.8V (low) and 2.4V (high), fully compatible with 3.3V microcontrollers. When operating from a single +12V supply, the device maintains 0–12V analog signal range and retains full functionality - no level-shifting circuitry is needed for the A0/A1/A2/EN interface.
How does the EN pin affect power consumption in DG408DY-T?
When EN is low, DG408DY-T enters standby mode with I+ ≤ 75μA and I− ≤ 1μA - reducing total supply current by >95% versus enabled state. This enables aggressive power gating in battery-operated DAQ systems. The EN pin also forces all switches open, preventing sneak paths and ensuring signal isolation during sleep cycles.
Can DG408DY-T replace DG508A without PCB changes?
Yes, DG408DY-T is explicitly designed as a drop-in replacement for DG508A in 16-pin SOIC layout. Pinout, footprint, and logic interface are identical. Key improvements - lower ON resistance (<100Ω vs. 125Ω), faster switching (<250ns vs. 350ns), and reduced charge injection - require no layout modification but deliver measurable system-level benefits in precision applications.
What is the thermal resistance (θJA) of DG408DY-T in its SOIC package?
The DG408DY-T in 16-lead SOIC (M16.15) has a typical junction-to-ambient thermal resistance (θJA) of 110°C/W, measured on a standard evaluation board in free air. At maximum continuous power dissipation (~11mW), this yields a worst-case junction temperature rise of ~1.2°C above ambient - well within the -40°C to +85°C operating range without heatsinking.
DG408DY-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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 ~ 34V
- 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:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG408DY-T FAQ
1.How can I place an order for DG408DY-T through Aetrix?
Please submit a Request for Quotation (RFQ) for DG408DY-T 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 DG408DY-T reliable?
The price and inventory of DG408DY-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG408DY-T is usually 5 days.
3.What payment methods are accepted for DG408DY-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG408DY-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG408DY-T?
DG408DY-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG408DY-T 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 DG408DY-T?
For technical support, including DG408DY-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG408DY-T requirements.
6.How does Aetrix verify that DG408DY-T is sourced from the original manufacturer or authorized distributors?
All DG408DY-T 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 DG408DY-T meets industry standards.
7.What is the process for return or replacement of DG408DY-T?
All DG408DY-T units undergo pre-shipment inspection (PSI). If there is an issue with DG408DY-T, 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 DG408DY-T part is unused and in its original packaging.
Return procedure for DG408DY-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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