My Inquiry
My Account
Vishay Siliconix DG308ADY
- Part No.:
- DG308ADY
- Manufacturer:
- Vishay Siliconix
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG308ADY.pdf
- Description:
- IC SW SPST-NOX4 100OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,884
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DG308ADY from Vishay Siliconix is a quad monolithic SPST CMOS analog switch in normally open configuration, rated for ±15 V analog signal range, 60 Ω on-resistance, and 130 ns turn-on time. It operates across -40 °C to +85 °C, supports single- or dual-supply operation, and is used in high-speed multiplexing within portable instrumentation and communication systems.
For engineers reviewing the DG308ADY datasheet, DG308ADY pinout, DG308ADY application, or DG308ADY equivalent, this device requires attention to its ±15 V rail-to-rail analog range, CMOS-compatible logic thresholds (≤3.5 V low, ≥11 V high), SOIC-16 package thermal derating (6.5 mW/°C above 25 °C), and absence of internal level-shifting circuitry.
Technical Context
The DG308ADY implements four independent bidirectional SPST switches fabricated using Vishay's PLUS-40 CMOS process, enabling 44 V breakdown voltage and latch-up immunity via epitaxial isolation. Each channel exhibits symmetrical conduction and blocking behavior with leakage currents below ±100 nA at ±14 V off-state.
Switch control uses high-voltage CMOS-compatible inputs-logic "0" ≤3.5 V and "1" ≥11 V-with input currents under ±1 µA across temperature. Dynamic performance includes 130 ns turn-on and 90 ns turn-off times into 35 pF load, with charge injection limited to ±10 pC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15 V - supports full rail-to-rail signal switching without clipping when V+ = +15 V and V− = −15 V |
| Drain-Source On-Resistance | 60 Ω typical - ensures minimal signal attenuation and voltage drop in precision analog paths |
| Turn-On Time | 130 ns - enables reliable sampling at up to ~3 MHz in multiplexed data acquisition |
| Off-Isolation | 78 dB at 500 kHz - provides strong channel-to-channel crosstalk suppression in RF-adjacent routing |
| Supply Current | ±0.001 µA - allows battery-powered operation with negligible quiescent drain |
| Charge Injection | ±10 pC - limits voltage glitch on sampled capacitive nodes, critical for ADC front-end integrity |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial-grade embedded systems and telecom infrastructure |
Pinout & Package
Package: 16-pin narrow SOIC (JEDEC MS-012), body dimensions 9.8–10.0 mm × 3.8–4.0 mm × 1.35–1.75 mm, lead pitch 1.27 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | Digital Input (IN1–IN4) | CMOS-compatible control lines; logic high ≥11 V, low ≤3.5 V; static protected |
| 2, 6, 10, 14 | Source (S1–S4) | Switch source terminals; bidirectional; clamped by internal diodes beyond supply rails |
| 3, 7, 11, 15 | Drain (D1–D4) | Switch drain terminals; bidirectional; same clamping and voltage rating as sources |
| 4 | V− | Negative supply rail; must be connected for dual-supply operation or grounded for single-supply use |
| 8 | GND | Digital ground reference; separate from analog return unless system design mandates common ground |
| 12 | V+ | Positive supply rail; sets upper analog voltage limit; supports up to +20 V absolute max |
| 16 | NC | No connect; internally unconnected; must remain floating or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional analog conduction | Enables flexible signal routing in both directions without polarity constraints or external biasing |
| Epitaxial latch-up immunity | Guarantees robust operation in noisy industrial environments with transient voltage coupling |
| Single- or dual-supply flexibility | Supports +5 V to +20 V single supply or ±5 V to ±20 V split supply without redesign |
| Rail-to-rail analog range | Preserves full dynamic range of sensors and DAC outputs without external level-shifting circuitry |
| Low 30 nW power dissipation | Reduces self-heating effects in densely packed PCB layouts and extends battery life in portable devices |
Applications
| Portable Instrumentation | Communication Systems |
|---|---|
Use Scenario: Handheld multimeters and oscilloscope probes selecting between multiple sensor inputs or attenuation ranges. IC Role / Device Role / Timing Role: Quad SPST analog switch routing signals to shared ADC or amplifier stages. Use Value: 60 Ω RDS(on) minimizes gain error; 130 ns switching enables fast channel scanning without settling delay penalties. | Use Scenario: Baseband signal path switching in cellular transceivers and RF front-end calibration loops. IC Role / Device Role / Timing Role: High-isolation analog switch isolating test signal paths during calibration or antenna diversity switching. Use Value: 78 dB off-isolation at 500 kHz suppresses LO feedthrough; ±15 V range accommodates wide IF signal swings. |
| Computer Peripherals | High-Speed Multiplexing |
Use Scenario: USB-C docking stations routing audio, video, and auxiliary analog signals between host and peripherals. IC Role / Device Role / Timing Role: Low-leakage analog switch managing line-level audio and sensor feedback paths. Use Value: ±100 nA off-leakage prevents DC offset drift in microphone preamp inputs; TSSOP/SOIC compatibility eases layout in space-constrained connectors. | Use Scenario: Data acquisition modules scanning 16-channel thermocouple or strain gauge arrays. IC Role / Device Role / Timing Role: Precision multiplexer front-end with minimal charge injection and on-resistance flatness. Use Value: ±10 pC charge injection avoids ADC code jumps; 60 Ω matching across channels ensures consistent gain scaling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617ESE+ | Lower RDS(on) (35 Ω), but only rated for ±12 V analog range and 0 °C to +70 °C operation | Not suitable for industrial temperature or ±15 V signal environments where DG308ADY is specified | Select MAX4617ESE+ only if system operates at ≤±12 V and ambient stays within commercial temp range |
| ADG1419BRUZ | Higher performance: 1.5 Ω RDS(on), 100 MHz bandwidth, but requires ±15 V supplies and costs >3× more | Over-specified for cost-sensitive portable instrumentation where DG308ADY's 60 Ω and 130 ns meet requirements | Choose ADG1419BRUZ only when sub-ohm on-resistance and GHz-range bandwidth are mandatory |
Compared with MAX4617ESE+ and ADG1419BRUZ, the DG308ADY delivers optimal balance of ±15 V rail-to-rail support, industrial temperature range, and low-cost SOIC packaging-making it ideal for mid-performance analog routing where budget and reliability are prioritized over ultra-low resistance or extreme speed.
Availability
DG308ADY is available at Aetrix Electronics and suitable for portable instrumentation, communication systems, and computer peripherals requiring stable component supply across extended temperature and voltage ranges.
Supply support for DG308ADY 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 MOSFETs, diodes, optoelectronics, and analog switches, with emphasis on high-reliability, high-voltage, and thermally robust designs.
The DG308ADY belongs to Vishay's PLUS-40 CMOS analog switch family, engineered for rail-to-rail signal integrity, latch-up immunity, and operation across industrial temperature ranges in instrumentation and telecom infrastructure.
FAQ
What is the maximum analog voltage range supported by DG308ADY?
The DG308ADY supports a ±15 V analog signal range when operated with V+ = +15 V and V− = −15 V. Its absolute maximum analog voltage is limited to (V−) − 2 V to (V+) + 2 V per internal clamp diode ratings, and signals exceeding supply rails will be clamped-not blocked-so proper rail alignment is essential for linear operation.
Can DG308ADY operate from a single +5 V supply?
Yes, DG308ADY can operate from a single +5 V supply with GND as the reference, but analog input range becomes 0 V to +5 V (not rail-to-rail), on-resistance increases, and switching speed degrades versus dual-supply operation. The logic thresholds remain fixed: IN ≤3.5 V = OFF, IN ≥11 V = ON-so level-shifting is required for standard 5 V CMOS logic.
Does DG308ADY have built-in ESD protection on analog pins?
The DG308ADY does not specify on-chip ESD protection diodes on analog S/D pins beyond the inherent junction clamps referenced in Absolute Maximum Ratings. External TVS or series resistors are recommended for IEC 61000-4-2 compliance. Digital inputs include static protection, but analog paths require external safeguarding in harsh environments.
What is the thermal derating behavior of DG308ADY in SOIC package?
For the DG308ADY in narrow SOIC package, power dissipation must be derated at 6.5 mW/°C above +25 °C ambient. At +75 °C, maximum allowable power drops to 600 mW − (50 °C × 6.5 mW/°C) = 275 mW. This applies to total device dissipation, including all four channels and supply currents.
Is DG308ADY pin-compatible with DG308B or DG308C variants?
No-DG308ADY is not pin-compatible with DG308B or DG308C. The DG308B/DG308C are upgraded versions with improved RDS(on), leakage, and timing, but they use different package footprints and logic threshold specifications. The DG308ADY remains a legacy part with fixed SOIC-16 pinout and no direct drop-in replacement within the same suffix family.
DG308ADY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±15V
- Switch Time (Ton, Toff) (Max):
- 200ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- -10pC
- Channel Capacitance (CS(off), CD(off)):
- 11pF, 8pF
- 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
DG308ADY FAQ
1.How can I place an order for DG308ADY through Aetrix?
Please submit a Request for Quotation (RFQ) for DG308ADY 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 DG308ADY reliable?
The price and inventory of DG308ADY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG308ADY is usually 5 days.
3.What payment methods are accepted for DG308ADY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG308ADY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG308ADY?
DG308ADY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG308ADY 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 DG308ADY?
For technical support, including DG308ADY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG308ADY requirements.
6.How does Aetrix verify that DG308ADY is sourced from the original manufacturer or authorized distributors?
All DG308ADY 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 DG308ADY meets industry standards.
7.What is the process for return or replacement of DG308ADY?
All DG308ADY units undergo pre-shipment inspection (PSI). If there is an issue with DG308ADY, 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 DG308ADY part is unused and in its original packaging.
Return procedure for DG308ADY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DG308ADY Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
Texas Instruments
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
