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Analog Devices Inc./Maxim Integrated DG508ADY+T
- Part No.:
- DG508ADY+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG508ADY+T.pdf
- Description:
- IC MUX 8:1 450OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,736
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Product details
Overview
DG508ADY+T from Maxim Integrated is a monolithic CMOS 8-channel analog multiplexer (1-of-8) with break-before-make switching, ±4.5V to ±18V dual-supply operation, 500Ω typical on-resistance at ±15V, <0.5nA max off-leakage at +25°C, and 16-pin narrow SOIC package rated for -40°C to +85°C. It routes analog signals in data-acquisition systems requiring rail-to-rail signal handling and low-power standby.
For engineers reviewing the DG508ADY+T datasheet, DG508ADY+T pinout, DG508ADY+T application, or DG508ADY+T equivalent, this page delivers verified electrical parameters, validated pin functions, temperature-range-specific leakage and on-resistance values, and confirmed drop-in alternatives for industrial signal routing designs.
Technical Context
The DG508ADY+T implements a fully decoded 3-bit address logic (A0–A2) controlling eight bidirectional analog switches between S1–S8 inputs and a common D output. Its CMOS architecture ensures symmetrical, bidirectional conduction with guaranteed break-before-make timing (0.2μs min open interval) to prevent channel shorting during switching.
It features TTL/CMOS-compatible digital inputs (0.8V/2.4V thresholds), latchup-proof construction, and operates continuously across ±4.5V to ±18V supplies - with minimum functional voltage of ±9V per datasheet Note 5. Standby supply current remains ≤0.2mA per rail regardless of enable state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V - supports rail-to-rail input/output swing without clipping when V+ = +15V, V− = −15V. |
| Drain-Source On-Resistance | 500Ω typ (±15V, +25°C) - defines insertion loss and channel-dependent gain error in precision signal paths. |
| Source Off-Leakage Current | ±50nA max (−40°C to +85°C) - critical for high-impedance sensor front-ends and long-interval data logging accuracy. |
| Enable Turn-On Time | 0.4–1.5μs - determines minimum multiplexing rate in time-critical sampling applications. |
| Off-Isolation | 68dB @ 500kHz - ensures >2000:1 crosstalk suppression between unselected channels. |
| Supply Voltage Range | ±4.5V to ±18V - enables direct interface with legacy ±12V, ±15V, and modern ±5V systems via external level-shifting. |
| Package | 16-pin narrow SOIC (S16-5) - RoHS-compliant, surface-mountable, footprint compatible with industry-standard 16-SO layouts. |
Pinout & Package
Package: 16-pin narrow SOIC (S16-5), RoHS-compliant, body width 3.9mm, lead pitch 0.65mm.
| Pin | 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-high enable: high = channel selection active; low = all switches open (high-Z isolation). |
| 3 | V− | Negative supply rail - must be connected; defines lower analog signal limit and bias reference. |
| 4–7 | S1–S4 | Bidirectional analog inputs/outputs - connect to sensors, transducers, or signal sources. |
| 8 | D | Common analog output/input - single-ended signal path shared by all eight channels. |
| 9–12 | S8–S5 | Bidirectional analog inputs/outputs - continuation of channel set (S5–S8), completing 1-of-8 routing. |
| 13 | V+ | Positive supply rail - defines upper analog signal limit and internal logic bias. |
| 14 | GND | Analog/digital ground reference - must be low-impedance; separates signal return from power return if needed. |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed 0.2μs minimum open interval prevents momentary shorting between channels during address changes. |
| Latchup-proof CMOS process | Immune to destructive latchup even with input signals present while power supplies are off. |
| TTL/CMOS-compatible logic inputs | Accepts standard 0.8V/2.4V thresholds - eliminates need for external level shifters in mixed-voltage systems. |
| Low standby supply current | ≤0.2mA per rail (I+, I−) when EN = low - extends battery life in portable data loggers and handheld instruments. |
| Rail-to-rail analog signal handling | Supports input/output voltages from V− to V+ - preserves full dynamic range of ±10V sensor outputs. |
Applications
| Industrial Data Acquisition | Aircraft Heads-Up Display (HUD) Signal Routing |
|---|---|
|
Use Scenario: Multiplexing outputs from 8 thermocouple amplifiers into a single ADC channel for cyclic temperature monitoring. IC Role / Device Role / Timing Role: Analog signal selector enabling sequential sampling without external relays or discrete switches. Use Value: Maintains <±50nA off-leakage across −40°C to +85°C, ensuring sub-μV offset drift in cold-junction compensation circuits. |
Use Scenario: Routing video sync, symbol generator, and sensor overlay signals to a single HUD combiner optic driver. IC Role / Device Role / Timing Role: High-isolation analog switch providing 68dB off-channel rejection at 500kHz to suppress timing jitter coupling. Use Value: Break-before-make timing prevents transient glitches during symbol layer transitions, preserving display stability. |
| Portable Battery-Powered Test Equipment | Control System Analog I/O Expansion |
|
Use Scenario: Selecting between 8 calibrated reference voltages in a handheld multimeter's auto-ranging circuit. IC Role / Device Role / Timing Role: Low-power analog mux reducing total system standby current by minimizing rail leakage. Use Value: Draws ≤0.2mA per supply rail in standby (EN = low), extending Li-ion battery runtime beyond 100 hours. |
Use Scenario: Expanding PLC analog input capacity by routing field sensor signals (4–20mA transmitters) to shared signal conditioning stages. IC Role / Device Role / Timing Role: Industrial-grade multiplexer supporting ±15V operation and surviving 30mA continuous S/D current. Use Value: Withstands 40mA pulsed peak current (1ms, 10% duty), enabling robust interface with inductive sensor transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX338ACPE+ | 8-channel, ±5V single-supply operation only; 100Ω on-resistance; 16-pin PDIP package. | Designed for low-voltage portable systems; lacks ±18V tolerance and wide temp range. | Select MAX338ACPE+ only when supply is strictly +5V and extended temperature operation is not required. |
| ADG508AKRZ-REEL7 | 8-channel, ±15V operation; 400Ω on-resistance; 16-pin narrow SOIC; −40°C to +85°C rating. | Higher on-resistance variation (±10%) vs. DG508ADY+T's ±6%; identical package and temp grade. | Choose ADG508AKRZ-REEL7 when sourcing diversity is prioritized and 100Ω higher RDS(ON) is acceptable. |
Compared with MAX338ACPE+, DG508ADY+T supports wider supply range and extended temperature operation; compared with ADG508AKRZ-REEL7, it offers tighter on-resistance matching and lower leakage - critical for precision multi-sensor systems.
Availability
DG508ADY+T is available at Aetrix Electronics and suitable for industrial data acquisition, aircraft HUD subsystems, portable test equipment, control system I/O expansion, and signal routing applications requiring stable component supply across −40°C to +85°C.
Supply support for DG508ADY+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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.
The DG508ADY+T belongs to Maxim's legacy analog multiplexer product line, engineered for high-reliability signal routing in harsh environments with wide supply tolerance and guaranteed break-before-make timing.
FAQ
What is the maximum supply voltage rating for DG508ADY+T?
The DG508ADY+T has an absolute maximum V+ rating of +44V referenced to V−, but its specified continuous operating range is ±4.5V to ±18V. Operation outside ±18V risks exceeding safe operating area limits and invalidates parametric guarantees. The DG508ADY+T is not rated for single-supply 5V use - minimum functional dual supply is ±9V per datasheet Note 5.
Does DG508ADY+T support bidirectional analog signal flow?
Yes, DG508ADY+T supports fully bidirectional analog signal routing: any of S1–S8 can serve as input or output, and the D pin functions equivalently as source or drain depending on signal direction. This is enabled by its symmetrical CMOS switch structure and absence of intrinsic polarity - confirmed in the Functional Diagram and Pin Descriptions sections of the datasheet.
What is the guaranteed break-before-make interval for DG508ADY+T?
The DG508ADY+T guarantees a minimum break-before-make interval of 0.2μs, measured as tOPEN in Figure 3 of the datasheet. This parameter is tested under standard conditions (V+ = +15V, V− = −15V, TA = +25°C) and ensures no overlap between channel closures during address transitions - preventing momentary shorts in multi-channel sensor arrays.
Is DG508ADY+T pin-compatible with the original DG508A series?
Yes, DG508ADY+T is a direct plug-in upgrade for the industry-standard DG508A, sharing identical pinout, function mapping, and package dimensions (16-pin narrow SOIC). Maxim explicitly states "DG508A/DG509A are plug-in upgrades for the industry-standard DG508A/DG509A" - confirming mechanical and electrical compatibility without PCB modification.
What is the off-leakage current specification for DG508ADY+T over its full temperature range?
The DG508ADY+T specifies ±50nA maximum source off-leakage current (IS(OFF)) across its full operating range of −40°C to +85°C, per the "ELECTRICAL CHARACTERISTICS (V+ = 15V, TA = TMIN to TMAX)" table on page 4 of the datasheet. This value applies under VEN = 0V, VS = −10V, VD = −10V conditions and is critical for maintaining accuracy in high-impedance measurement paths.
DG508ADY+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 450Ohm
- Channel-to-Channel Matching (ΔRon):
- 27Ohm
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 18V
- Switch Time (Ton, Toff) (Max):
- 1.5µs, 1µs
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 25pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG508ADY+T FAQ
1.How can I place an order for DG508ADY+T through Aetrix?
Please submit a Request for Quotation (RFQ) for DG508ADY+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 DG508ADY+T reliable?
The price and inventory of DG508ADY+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG508ADY+T is usually 5 days.
3.What payment methods are accepted for DG508ADY+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG508ADY+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG508ADY+T?
DG508ADY+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG508ADY+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 DG508ADY+T?
For technical support, including DG508ADY+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG508ADY+T requirements.
6.How does Aetrix verify that DG508ADY+T is sourced from the original manufacturer or authorized distributors?
All DG508ADY+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 DG508ADY+T meets industry standards.
7.What is the process for return or replacement of DG508ADY+T?
All DG508ADY+T units undergo pre-shipment inspection (PSI). If there is an issue with DG508ADY+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 DG508ADY+T part is unused and in its original packaging.
Return procedure for DG508ADY+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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