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Analog Devices Inc./Maxim Integrated MAX335EWG+T
- Part No.:
- MAX335EWG+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 24-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX335EWG+T.pdf
- Description:
- IC SW SPST-NOX8 150OHM 24SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:988
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Product details
Overview
The MAX335EWG+T from Maxim Integrated is a serial-controlled, 8-channel SPST analog switch IC with SPI-compatible interface, ±15V analog signal handling capability, 100Ω typical on-resistance, and -40°C to +85°C operating temperature range-designed for high-voltage signal routing in avionics and industrial process control systems.
For engineers reviewing the MAX335EWG+T datasheet, MAX335EWG+T pinout, MAX335EWG+T application, or MAX335EWG+T equivalent, this device delivers rail-to-rail analog switching under ±4.5V to ±20V supplies, daisy-chainable serial control, and guaranteed break-before-make timing critical for multiplexer and differential mux implementations.
Technical Context
The MAX335EWG+T implements an 8-bit shift register synchronized to SCLK's rising edge, with CS-latched update of all eight SPST switches upon CS high transition. Its internal translator circuitry enables TTL-level logic compatibility when VL = +5V and supports reset via VL < +0.8V.
It features dual power domains: analog supply (V+/V−) supporting ±4.5V to ±20V operation and digital logic supply (VL) ranging from +4.5V to V+, with independent leakage control and feedthrough suppression via 100mV SCLK hysteresis and 100nV-sec clock feedthrough specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Signal Range | ±15V - supports rail-to-rail signal switching across full bipolar supply range |
| On-Resistance (RON) | 100Ω typ - ensures minimal insertion loss and voltage drop in signal paths |
| Switch Count & Type | 8 × SPST - enables independent control of eight discrete analog paths |
| Serial Interface | SPI-compatible 3-wire (SCLK/DIN/CS), DOUT for daisy chaining - eliminates parallel bus routing |
| Turn-On/Off Time | 200ns/90ns typ - enables fast channel switching for real-time data acquisition |
| Off-Isolation (OIRR) | 90dB at 100kHz - suppresses crosstalk between inactive channels in dense routing |
| Power Supply Range | V+/V− = ±4.5V to ±20V; VL = +4.5V to V+ - allows flexible dual-supply or single-supply configurations |
Pinout & Package
MAX335EWG+T is housed in a 24-pin Wide SO (SOIC-W) package with 0.300-inch body width and 1.27mm lead pitch, optimized for high-density PCB layouts and thermal performance up to 941mW at +70°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | SCLK | Serial clock input - rising-edge synchronous data capture into 8-bit shift register |
| 2 | V+ | Positive analog supply - sets upper rail for ±4.5V to ±20V analog signal handling |
| 3 | DIN | Serial data input - accepts 8-bit word where each bit controls one SPST switch |
| 4 | GND | Ground reference - common return for digital logic and analog substrate |
| 5–20 | NO0–NO7 / COM0–COM7 | Eight independent SPST switch terminals - bidirectional, symmetric conduction path per channel |
| 21 | V− | Negative analog supply - sets lower rail; substrate tied to V+ per chip topography |
| 22 | DOUT | Serial data output - provides delayed echo of DIN for cascading multiple devices |
| 23 | VL | Logic supply/reset - defines TTL-compatible thresholds; < +0.8V resets shift register to zero |
| 24 | CS | Chip select - low enables serial loading; rising edge latches new switch configuration |
Key Features
| Feature | Design Value |
|---|---|
| 8 independently controllable SPST switches | Enables flexible signal routing without external decoding logic or multiplexer address lines |
| SPI-compatible serial interface with DOUT | Reduces MCU GPIO count by 5× vs. parallel control; supports daisy-chained configuration of multiple ICs |
| Rail-to-rail analog signal handling (±15V) | Permits direct interfacing with industrial sensors, avionics transducers, and ±12V/±15V legacy systems |
| Break-before-make delay (15ns min) | Prevents momentary short-circuit during channel switching in multiplexer or SPDT configurations |
| Low off-leakage current (0.002nA typ) | Maintains signal integrity in high-impedance sensor front-ends and precision measurement paths |
| Reset function via VL supply | Allows system-level initialization of all switches to OFF state without requiring full power cycle |
Applications
| Avionics Signal Routing | Industrial Process Control |
|---|---|
|
Use Scenario: Selecting among multiple sensor inputs (e.g., airspeed, altitude, attitude) in flight data acquisition units. IC Role / Device Role / Timing Role: Serial-configured 8:1 analog multiplexer with deterministic 200ns turn-on time and ±15V tolerance. Use Value: Eliminates mechanical relays and reduces board space while maintaining MIL-STD-704 compliant signal integrity. |
Use Scenario: Routing analog outputs from PLC modules to multiple actuator drivers in factory automation systems. IC Role / Device Role / Timing Role: High-voltage SPST switch array controlled via isolated SPI bus for noise immunity. Use Value: Enables hot-swappable I/O module design with no signal interruption during reconfiguration. |
| Test Equipment Multiplexing | Differential Mux for Precision ADCs |
|
Use Scenario: Scanning 8 DUT channels into a single high-speed digitizer in automated test equipment. IC Role / Device Role / Timing Role: Low-charge-injection (70pC max), low-RON analog switch with 90dB off-isolation. Use Value: Minimizes settling error and crosstalk-induced measurement drift across sequential channel reads. |
Use Scenario: Implementing 4:2 differential multiplexer feeding dual-input precision ADCs in medical imaging front-ends. IC Role / Device Role / Timing Role: Paired NO/COM terminals (e.g., NO0/NO4 → COM0/COM4) configured as matched differential paths. Use Value: Ensures common-mode rejection through symmetrical RON tracking and simultaneous switching of both legs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1408BRUZ | 8-channel SPST, ±15V rating, but uses parallel 3-wire interface (not serial); higher RON (12Ω typ at ±15V) | Requires more MCU GPIOs; better suited for static channel assignment than dynamic reconfiguration | Select when low on-resistance and parallel control simplicity outweigh serial interface benefits |
| MAX4617ESE+ | 8-channel SPST, SPI interface, but only ±5.5V analog range and no daisy-chain DOUT | Limited to low-voltage mixed-signal systems; unsuitable for ±12V/±15V industrial or avionics rails | Select only for cost-sensitive, low-voltage embedded designs where rail-to-rail capability is unnecessary |
Compared with ADG1408BRUZ and MAX4617ESE+, the MAX335EWG+T uniquely combines wide ±20V supply tolerance, true SPI daisy-chaining, and guaranteed break-before-make timing-making it the only option for high-reliability, serially reconfigurable analog routing in extended-temperature industrial and aerospace environments.
Availability
MAX335EWG+T is available at Aetrix Electronics and suitable for avionics signal routing, industrial process control, test equipment multiplexing, and differential mux for precision ADCs requiring stable component supply across extended temperature ranges.
Supply support for MAX335EWG+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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX335EWG+T belongs to Maxim's precision analog switch product line, engineered specifically for serially controlled, high-voltage signal routing in safety-critical and noise-sensitive systems where reliability and parametric consistency are essential.
FAQ
What is the maximum analog signal voltage the MAX335EWG+T can handle?
The MAX335EWG+T supports analog signals from V− −2V to V+ +2V, with absolute maximum ratings of ±20V on V+/V−. Under standard operation with ±15V supplies, its specified analog signal range is ±15V - enabling rail-to-rail switching without clipping or distortion in high-voltage industrial and avionics interfaces. This rating is confirmed in the Electrical Characteristics table under "Analog Signal Range" (VANALOG).
Does the MAX335EWG+T support daisy-chaining with other MAX335 devices?
Yes, the MAX335EWG+T supports daisy-chaining via its DOUT pin, which outputs the same data shifted in at DIN but delayed by eight clock cycles. When multiple MAX335EWG+T devices share a common SCLK and CS line, DIN of the first feeds DOUT of the previous, allowing a single 24-bit stream to configure three devices simultaneously. This behavior is explicitly defined in the "Daisy Chaining" section and Figure 5 of the datasheet.
What is the purpose of the VL pin on the MAX335EWG+T?
The VL pin on the MAX335EWG+T serves two functions: (1) it sets the logic threshold voltage for DIN, SCLK, and CS inputs - with VIH = 2.4V and VIL = 0.8V when VL = +5V, ensuring TTL compatibility; and (2) it enables hardware reset - pulsing VL below +0.8V forces all switches OFF and clears the internal shift register to zero. Both functions are documented in the Pin Description and Applications Information sections.
Is the MAX335EWG+T pin-compatible with the DG211 quad analog switch?
No, the MAX335EWG+T is not pin-compatible with the DG211. While the datasheet states the MAX335 is "equivalent to two DG211 quad switches" in functional capability (i.e., eight SPST channels), it uses a completely different 24-pin Wide SO package with serial interface pins (SCLK, DIN, DOUT, CS, VL) absent in the 16-pin DG211. The pin count, layout, and interface architecture are incompatible - making it a functional alternative, not a drop-in replacement.
What is the guaranteed break-before-make delay for the MAX335EWG+T?
The MAX335EWG+T guarantees a minimum break-before-make delay of 15ns, with a typical value of 25ns, as specified in the Electrical Characteristics table under "Break-Before-Make Delay (TBBM)". This parameter ensures that one switch fully opens before another closes - preventing momentary shorts in multiplexer or SPDT configurations - and is measured under standard conditions (V+ = +15V, V− = −15V, TA = +25°C).
MAX335EWG+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 8
- On-State Resistance (Max):
- 150Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 400ns, 400ns
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- 2pF, 2pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -100dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-SOIC
MAX335EWG+T FAQ
1.How can I place an order for MAX335EWG+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX335EWG+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 MAX335EWG+T reliable?
The price and inventory of MAX335EWG+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX335EWG+T is usually 5 days.
3.What payment methods are accepted for MAX335EWG+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX335EWG+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX335EWG+T?
MAX335EWG+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX335EWG+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 MAX335EWG+T?
For technical support, including MAX335EWG+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX335EWG+T requirements.
6.How does Aetrix verify that MAX335EWG+T is sourced from the original manufacturer or authorized distributors?
All MAX335EWG+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 MAX335EWG+T meets industry standards.
7.What is the process for return or replacement of MAX335EWG+T?
All MAX335EWG+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX335EWG+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 MAX335EWG+T part is unused and in its original packaging.
Return procedure for MAX335EWG+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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