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Analog Devices Inc./Maxim Integrated DG408DY+
- Part No.:
- DG408DY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG408DY+.pdf
- Description:
- IC MUX 8:1 100OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,116
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Product details
Overview
DG408DY+ from Maxim Integrated is a precision 1-of-8 CMOS analog multiplexer/demultiplexer designed for bidirectional signal routing in high-fidelity data-acquisition and test systems. It delivers guaranteed on-resistance ≤100Ω, channel-to-channel matching ≤8Ω, on-resistance flatness ≤9Ω, low charge injection ≤15pC, and input off-leakage <5nA at +85°C. It operates from ±5V to ±20V dual supplies or +5V to +30V single supply, supporting rail-to-rail analog signals up to ±15V.
For engineers reviewing the DG408DY+ datasheet, DG408DY+ pinout, DG408DY+ application, or DG408DY+ equivalent, key selection criteria include guaranteed on-resistance matching across all eight channels, low-temperature drift of leakage current, enable-controlled break-before-make switching, TTL/CMOS-compatible digital inputs, and SO narrow-body packaging for space-constrained industrial PCBs.
Technical Context
The DG408DY+ implements a fully decoded 3-bit address logic (A0–A2) with active-low enable (EN) to select one of eight bidirectional analog paths between common drain (D) and source terminals (S1–S8). Its CMOS transmission-gate architecture ensures symmetrical conduction and rail-to-rail signal handling without polarity constraints.
Switching performance is characterized by 100ns–600ns enable turn-on/off times (depending on supply and load), 75ns–450ns transition time, and a guaranteed 85ns–175ns break-before-make interval. Dynamic parameters-including crosstalk (−92dB), off-isolation (−75dB), and charge injection (≤15pC)-are specified over −40°C to +85°C and validated under dual-supply (±15V) and single-supply (+12V) conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (rDS(ON)) | ≤100Ω max - ensures minimal signal attenuation and gain error in precision measurement paths |
| On-Resistance Matching | ≤8Ω max - guarantees consistent gain and offset across all 8 channels in multi-channel sampling |
| On-Resistance Flatness | ≤9Ω max - maintains linearity over full ±10V analog input range, critical for wide-dynamic-range ADC front-ends |
| Charge Injection | ≤15pC max - limits voltage glitch on sample-hold capacitors, preserving acquisition accuracy |
| Input Off-Leakage Current | <5nA at +85°C - prevents DC error buildup in high-impedance sensor interfaces and integrator circuits |
| Analog Signal Range | ±10V min with ±15V supplies - supports full-scale operation in industrial ±10V control and instrumentation systems |
| Supply Voltage Range | ±5V to ±20V dual or +5V to +30V single - enables flexible power architecture in mixed-signal embedded systems |
Pinout & Package
DG408DY+ is housed in a 16-pin narrow SO (Small Outline) package (package code S16-5), 3.9mm width, surface-mount compatible with IPC-7351B land patterns.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15, 16 | A0, A1, A2 | 3-bit binary address inputs selecting one of eight analog channels (S1–S8 → D) |
| 2 | EN | Active-low enable controlling global switch activation; disables all channels when high |
| 3 | V− | Negative supply rail for dual-supply operation; tied to GND for single-supply use |
| 4–7 | S1–S4 | Bidirectional analog source terminals - inputs during mux mode, outputs during demux mode |
| 8 | D | Common bidirectional analog drain terminal - shared path for all selected channels |
| 9–12 | S8–S5 | Bidirectional analog source terminals (continuation of S1–S4 sequence) |
| 13 | V+ | Positive supply rail - sets upper limit of analog signal swing and powers internal logic |
| 14 | GND | Ground reference for logic inputs and substrate bias; separate from analog ground in split-ground layouts |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports input/output signals from V− to V+, enabling full utilization of ±15V supplies in industrial control loops |
| TTL/CMOS-compatible digital inputs | Accepts standard logic thresholds (VAL ≤ 0.8V, VAH ≥ 2.4V), eliminating level-shifter requirements in microcontroller interfaces |
| Guaranteed break-before-make timing | 85ns–175ns interval prevents momentary shorting between channels during address transitions, protecting sensitive sources |
| ESD protection >2000V | Meets MIL-STD-883 Method 3015.7, ensuring robustness during board handling and system integration |
| Low power consumption | ≤1.25mW typical - reduces thermal drift and simplifies thermal management in dense PCB layouts |
Applications
| Sample-and-Hold Circuits | Test Equipment |
|---|---|
Use Scenario: Multiplexing multiple sensor outputs into a single high-precision sample-and-hold amplifier prior to ADC conversion. IC Role / Device Role / Timing Role: Analog multiplexer providing low-charge-injection, matched-path switching to preserve hold capacitor voltage integrity across channels. Use Value: ≤15pC charge injection and ≤8Ω channel matching minimize settling error and differential nonlinearity in multi-channel DAQ systems. | Use Scenario: Automated test equipment routing calibrated reference signals or DUT outputs to measurement instruments. IC Role / Device Role / Timing Role: Precision analog switch enabling repeatable, low-crosstalk signal path selection under programmable controller command. Use Value: −92dB crosstalk and −75dB off-isolation prevent signal contamination between test channels during parallel diagnostics. |
| Guidance and Control Systems | Audio Signal Routing |
Use Scenario: Selecting among redundant inertial measurement unit (IMU) analog outputs in aerospace flight control units. IC Role / Device Role / Timing Role: Fault-tolerant analog multiplexer with guaranteed −40°C to +85°C leakage stability and break-before-make switching. Use Value: <5nA off-leakage at +85°C ensures minimal DC bias shift in closed-loop servo amplifiers during extended mission profiles. | Use Scenario: Channel-selectable routing of line-level audio signals in professional mixing consoles or broadcast gear. IC Role / Device Role / Timing Role: Bidirectional analog switch supporting symmetrical AC-coupled signal flow with low THD contribution. Use Value: ≤100Ω on-resistance and rail-to-rail capability maintain wide dynamic range and frequency response up to 20kHz without level compression. |
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 max), no guaranteed matching spec, wider SOIC package (7.5mm) | Lacks channel-matching guarantee and tighter flatness; suitable only where absolute gain consistency is noncritical | Select DG408DY+ when channel-to-channel gain tracking is required; ADG408BRZ may suffice for basic signal routing with relaxed matching needs |
| MAX4617ESE+ | Single 8-channel mux with same pinout but higher charge injection (25pC), lower ESD rating (1500V) | Not drop-in compatible due to different enable polarity (active-high) and missing A2 pin function | DG408DY+ is preferred for legacy DG408 designs requiring guaranteed matching and proven ESD robustness; MAX4617ESE+ requires layout and firmware adaptation |
Compared with ADG408BRZ and MAX4617ESE+, DG408DY+ uniquely provides factory-guaranteed ≤8Ω channel matching and ≤9Ω on-resistance flatness-critical for multi-channel calibration and precision sampling-while maintaining pin compatibility with original DG408 footprints in narrow SO packages.
Availability
DG408DY+ is available at Aetrix Electronics and suitable for industrial data-acquisition systems, automated test equipment, and aerospace guidance subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG408DY+ 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing applications.
DG408DY+ belongs to Maxim's precision analog switch/multiplexer product line, engineered specifically for applications demanding guaranteed parameter matching, low distortion, and robust operation in harsh electrical environments.
FAQ
What supply voltage ranges does the DG408DY+ support?
The DG408DY+ operates from ±5V to ±20V dual supplies or +5V to +30V single supply. When using single supply, V− must be connected to GND. Unbalanced supplies (e.g., +24V/−5V) are also supported, provided the difference between V+ and V− does not exceed +44V. All electrical specifications-including on-resistance and leakage-are validated across these ranges per the official Maxim datasheet Rev 4 (9/08).
Is DG408DY+ pin-compatible with the original DG408?
Yes, DG408DY+ is a pin-compatible plug-in upgrade for the industry-standard DG408. It shares identical pin configuration, pin functions, and footprint requirements with the original DG408 family, including compatibility with DG408CY, DG408CJ, and DG408DJ variants. This allows direct replacement without PCB redesign, while delivering improved matching, flatness, and leakage performance.
What is the maximum allowable analog signal voltage for DG408DY+?
The DG408DY+ supports analog signals from V− to V+, with guaranteed performance up to ±10V when operated at ±15V supplies. Absolute maximum analog input is limited by the supply rails: signals must remain within (V− − 2V) to (V+ + 2V) due to internal clamping diodes. Exceeding this range risks forward-biasing protection diodes and exceeding 30mA absolute maximum current per terminal.
Does DG408DY+ require external pull-up or pull-down resistors on address pins?
No, DG408DY+ does not require external biasing on A0, A1, A2, or EN pins. Its TTL/CMOS-compatible inputs have defined thresholds (VAL ≤ 0.8V, VAH ≥ 2.4V) and low input current (±1.0µA max), allowing direct connection to microcontroller GPIOs or FPGA outputs. Internal design ensures stable logic states without external resistors, reducing BOM count and board area in compact designs.
How does DG408DY+ handle break-before-make timing during channel switching?
DG408DY+ guarantees a break-before-make interval of 85ns to 175ns, preventing simultaneous conduction between adjacent channels during address changes. This timing is inherent to its internal decoder and driver design and is independent of external loading. The interval ensures safe switching in applications such as multiplexed sensor arrays or relay-driving circuits where cross-conduction could cause short-circuits or measurement corruption.
DG408DY+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 1
- 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, 26pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -92dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG408DY+ FAQ
1.How can I place an order for DG408DY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG408DY+ 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+ reliable?
The price and inventory of DG408DY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG408DY+ is usually 5 days.
3.What payment methods are accepted for DG408DY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG408DY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG408DY+?
DG408DY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG408DY+ 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+?
For technical support, including DG408DY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG408DY+ requirements.
6.How does Aetrix verify that DG408DY+ is sourced from the original manufacturer or authorized distributors?
All DG408DY+ 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+ meets industry standards.
7.What is the process for return or replacement of DG408DY+?
All DG408DY+ units undergo pre-shipment inspection (PSI). If there is an issue with DG408DY+, 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+ part is unused and in its original packaging.
Return procedure for DG408DY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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