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Analog Devices Inc./Maxim Integrated DG408CY+
- Part No.:
- DG408CY+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG408CY+.pdf
- Description:
- IC MUX 8:1 100OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:944
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Product details
Overview
DG408CY+ from Maxim Integrated is a precision 1-of-8 CMOS analog multiplexer/demultiplexer designed for bidirectional signal routing in data-acquisition and test systems. It delivers guaranteed 100Ω max on-resistance, 8Ω max channel-to-channel matching, and 15pC max charge injection, operating across ±5V to ±20V dual supplies or +5V to +30V single supply. Its rail-to-rail analog signal handling and TTL/CMOS-compatible digital control make it suitable for high-fidelity audio routing and sample-and-hold circuits.
For engineers reviewing the DG408CY+ datasheet, DG408CY+ pinout, DG408CY+ application, or DG408CY+ equivalent, key selection criteria include on-resistance flatness (9Ω max), input off-leakage (<5nA at +85°C), enable timing (tON(EN) ≤ 150ns), and ESD robustness (>2000V per MIL-STD-883 Method 3015.7).
Technical Context
The DG408CY+ implements a CMOS transmission-gate architecture with integrated decoder logic for 3-bit address selection (A0–A2) and active-low enable (EN). Its switch design ensures symmetrical conduction and low distortion across the full analog signal range (±15V with ±15V supplies).
It features guaranteed dynamic performance: break-before-make interval of 85ns to 175ns, transition time ≤250ns, and crosstalk suppression of –92dB at 100kHz. All leakage parameters are 100% tested at maximum hot temperature and correlated at +25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | 100Ω max - ensures minimal signal attenuation and gain error in precision measurement paths |
| On-Resistance Matching | 8Ω max - enables accurate ratiometric measurements across channels without calibration |
| Charge Injection | 15pC max - limits voltage glitch on hold capacitors in sample-and-hold applications |
| Analog Signal Range | ±15V with ±15V supplies - supports full-rail operation in industrial sensor interfaces |
| Input Off-Leakage | 5nA max at +85°C - preserves accuracy in high-impedance sensor front-ends |
| Enable Turn-On Time | 150ns max - allows fast channel switching in real-time data acquisition |
| ESD Protection | >2000V per MIL-STD-883 Method 3015.7 - enhances reliability in benchtop test equipment handling |
Pinout & Package
The DG408CY+ is housed in a 16-pin narrow SO (Small Outline) package with standard JEDEC MS-012AC footprint and 1.27mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15, 16 | A0, A1, A2 | 3-bit binary address inputs selecting one of eight analog channels |
| 2 | EN | Active-low enable controlling all switches; high-Z state when disabled |
| 3 | V− | Negative supply rail for dual-supply operation or ground reference for single-supply mode |
| 4–7, 9–12 | S1–S4, S5–S8 | Bidirectional analog source terminals - eight independent switch inputs |
| 8 | D | Common bidirectional analog drain/output terminal shared by all channels |
| 13 | V+ | Positive supply rail supporting up to +30V single or ±20V dual operation |
| 14 | GND | Ground reference for logic interface and internal biasing |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ without clipping, critical for ±15V sensor interfaces |
| TTL/CMOS-compatible control | Accepts logic thresholds of VAL ≤ 0.8V and VAH ≥ 2.4V, enabling direct MCU interfacing |
| Guaranteed on-resistance flatness | 9Ω max variation over full signal range - maintains linearity in precision ADC front-ends |
| Low power consumption | 1.25mW max at +25°C - reduces thermal drift and simplifies thermal management |
| Pin-compatible upgrade | Direct replacement for legacy DG408 without PCB layout changes |
Applications
| Test Equipment | Data-Acquisition Systems |
|---|---|
Use Scenario: Automated test fixtures routing multiple sensor outputs to a shared DMM or oscilloscope input. IC Role / Device Role / Timing Role: 1-of-8 analog multiplexer enabling sequential channel scanning under microcontroller control. Use Value: Guaranteed 8Ω channel matching eliminates inter-channel gain error, reducing system calibration burden. | Use Scenario: Industrial PLC module digitizing 8 thermocouple or RTD inputs via a single high-resolution ADC. IC Role / Device Role / Timing Role: Precision analog switch front-end providing low-leakage, low-charge-injection signal selection before ADC sampling. Use Value: 5nA max off-leakage at +85°C prevents voltage droop on high-impedance sensor sources during multiplexing. |
| Sample-and-Hold Circuits | Audio Signal Routing |
Use Scenario: High-speed data converter system capturing transient waveforms using external hold capacitor. IC Role / Device Role / Timing Role: Low-charge-injection analog switch isolating the hold capacitor during acquisition phase. Use Value: 15pC max charge injection minimizes voltage step error on the hold capacitor, preserving DC accuracy. | Use Scenario: Professional audio mixer routing line-level signals between processing stages or output buses. IC Role / Device Role / Timing Role: Bidirectional analog multiplexer enabling flexible patchbay-style signal path reconfiguration. Use Value: 100Ω max on-resistance and rail-to-rail operation preserve signal integrity and dynamic range across ±12V audio rails. |
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), wider temp range (−40°C to +85°C), same 16-pin SOIC package | Lower bandwidth and higher distortion in high-fidelity audio paths due to higher RON | Select ADG408BRZ only if extended temperature operation is required and 20Ω higher RON is acceptable. |
| TS5A3159DCKR | Single 1-of-2 switch, lower voltage rating (+5.5V max), smaller SC70-6 package, 0.75Ω typical RON | Not functionally equivalent-requires redesign for 1-of-8 topology and cannot support ±15V signals | TS5A3159DCKR is unsuitable as a drop-in replacement; consider only for new low-voltage, space-constrained designs. |
Compared with ADG408BRZ and TS5A3159DCKR, the DG408CY+ uniquely balances high-voltage capability (±20V), precision matching (8Ω), and proven pin-compatibility with legacy DG408 footprints-making it optimal for upgrading existing test and measurement hardware without layout revision.
Availability
DG408CY+ is available at Aetrix Electronics and suitable for test equipment, data-acquisition systems, sample-and-hold circuits, and audio signal routing requiring stable component supply and long-term obsolescence mitigation.
Supply support for DG408CY+ 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 and mixed-signal ICs for industrial, communications, and computing applications.
The DG408CY+ belongs to Maxim's precision analog multiplexer product line, engineered for applications demanding low distortion, tight channel matching, and robust operation across wide supply and temperature ranges.
FAQ
What supply voltages does the DG408CY+ support?
The DG408CY+ operates with ±5V to ±20V dual supplies or +5V to +30V single supply. When using single supply, connect V− to GND. Unbalanced supplies (e.g., +24V/−5V) are also supported, provided the difference between V+ and V− does not exceed +44V. The DG408CY+ maintains specified performance across this full range, including guaranteed on-resistance and leakage parameters.
Is the DG408CY+ pin-compatible with the original DG408?
Yes, the DG408CY+ is a pin-compatible plug-in upgrade for the industry-standard DG408. It shares identical pin configuration, electrical interface, and functional behavior-including address decoding (A0–A2), enable (EN), and analog I/O layout-allowing direct replacement without PCB modification. The DG408CY+ improves upon the original with tighter specifications for on-resistance matching, flatness, and charge injection.
What is the maximum analog signal range for DG408CY+ at ±15V supplies?
At ±15V dual supplies, the DG408CY+ supports a full rail-to-rail analog signal range of ±15V-that is, from −15V to +15V referenced to V− and V+. This is confirmed in the Electrical Characteristics table under "Analog Signal Range" with V+ = +15V and V− = −15V. Performance remains within specification across this entire range, including guaranteed on-resistance flatness of 9Ω max.
How does charge injection affect sample-and-hold performance with DG408CY+?
Charge injection of ≤15pC in the DG408CY+ directly determines the voltage step error imposed on the hold capacitor during channel switching. For example, with a 1000pF hold capacitor, the resulting glitch is ≤15mV-enabling sub-12-bit accuracy without additional correction. This value is guaranteed across temperature and supply conditions, making the DG408CY+ suitable for medium-speed, high-precision data acquisition where hold-step error must be minimized.
Does DG408CY+ require external protection diodes for overvoltage?
No, external protection diodes are not required for normal operation within absolute maximum ratings. However, if power-supply sequencing cannot be controlled (e.g., V+ applied after V−), Maxim recommends adding two small-signal diodes in series with V+ and V− pins for overvoltage protection. This reduces analog signal range by 1V but preserves DG408CY+'s core switch characteristics-low RON, low leakage, and guaranteed matching-without altering device functionality.
DG408CY+ 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG408CY+ FAQ
1.How can I place an order for DG408CY+ through Aetrix?
Please submit a Request for Quotation (RFQ) for DG408CY+ 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 DG408CY+ reliable?
The price and inventory of DG408CY+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG408CY+ is usually 5 days.
3.What payment methods are accepted for DG408CY+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG408CY+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG408CY+?
DG408CY+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG408CY+ 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 DG408CY+?
For technical support, including DG408CY+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG408CY+ requirements.
6.How does Aetrix verify that DG408CY+ is sourced from the original manufacturer or authorized distributors?
All DG408CY+ 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 DG408CY+ meets industry standards.
7.What is the process for return or replacement of DG408CY+?
All DG408CY+ units undergo pre-shipment inspection (PSI). If there is an issue with DG408CY+, 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 DG408CY+ part is unused and in its original packaging.
Return procedure for DG408CY+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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