My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX355EWE
- Part No.:
- MAX355EWE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX355EWE.pdf
- Description:
- IC SWITCH SP4T X 2 350OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,983
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX355EWE from Maxim Integrated is a dual 4-channel fault-protected analog multiplexer IC designed for high-reliability signal routing in industrial and avionics systems. It operates from ±4.5V to ±18V dual supplies (or +4.5V to +36V single supply), features 350Ω max on-resistance, <0.5nA input leakage at +25°C, and guaranteed break-before-make switching - enabling safe analog signal selection in data-acquisition systems exposed to ±40V overvoltage faults.
For engineers reviewing the MAX355EWE datasheet, MAX355EWE pinout, MAX355EWE application, or MAX355EWE equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, and two confirmed alternative parts with documented functional and application differences - all grounded in Maxim's official specifications and test data.
Technical Context
The MAX355EWE implements a series N-channel/P-channel/N-channel FET structure that actively limits fault current to sub-microamp levels during ±40V overvoltage events - whether power supplies are on or off. Its output clamps at ~1.5V below V+ and ~1.5V above V−, preserving polarity and preventing damage to downstream circuitry.
It supports true bidirectional analog signal flow across both COMA/COMB and NO1A–NO4A/NO1B–NO4B terminals, with TTL/CMOS-compatible logic thresholds (0.8V/2.4V) and no power-up sequencing requirement. Switching is controlled via A0/A1 address lines and EN enable, delivering 180ns typical transition time and 100ns guaranteed break-before-make interval.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±4.5V to ±18V dual or +4.5V to +36V single - enables operation in harsh industrial rails without external level-shifting. |
| On-Resistance (RON) | 350Ω max - ensures minimal signal attenuation and gain error in precision sensor interfaces. |
| Input Leakage Current | <0.5nA at +25°C - critical for high-impedance source applications like thermocouple or piezoelectric sensing. |
| Fault Protection | ±40V continuous overvoltage tolerance with supplies off - eliminates need for external TVS diodes in field-wiring interfaces. |
| Logic Compatibility | 0.8V/2.4V TTL thresholds - allows direct interface with microcontrollers and FPGAs without pull-ups or level translators. |
| Break-Before-Make | Guaranteed 100ns minimum - prevents momentary shorting between analog inputs during channel switching. |
| Charge Injection | 15pC to 180pC (dependent on supply/analog voltage) - defines settling error in sample-and-hold or ADC front-end designs. |
Pinout & Package
MAX355EWE is housed in a 16-pin wide SO (SOIC-W) package, 7.5mm body width, 1.27mm pitch, JEDEC MS-013 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1 | Binary address inputs | Select one of four channels per COM terminal; logic thresholds fixed at 0.8V/2.4V regardless of supply voltage. |
| EN | Active-high enable input | Disables all switches when low; guarantees all channels OFF when supplies are absent. |
| COMA, COMB | Common analog terminals | Bidirectional I/O ports - serve as outputs in mux mode, inputs in demux mode with full fault protection. |
| NO1A–NO4A, NO1B–NO4B | Analog channel inputs/outputs | Eight independent bidirectional nodes; each protected against ±40V faults with sub-µA leakage during overvoltage. |
| V+, V− | Power supply rails | Support asymmetric supplies (e.g., +15V/−5V); RON and signal range scale with |V+ − V−|. |
| GND | Reference ground | Digital logic threshold referenced solely to GND - decouples logic integrity from analog rail noise. |
Key Features
| Feature | Design Value |
|---|---|
| Fault protection with supplies off | Blocks ±40V input faults while drawing zero supply current - essential for hot-swap and maintenance-mode safety. |
| Output clamping at 1.5V from rails | Maintains correct polarity and limits output excursion during overvoltage - avoids latch-up in connected op-amps or ADCs. |
| Pin compatibility with ADG508F/ADG509F | Enables drop-in replacement in legacy designs without PCB rework - same pin mapping and logic behavior. |
| No power-up sequencing required | Allows V+, V−, and digital signals to power up in any order - simplifies system-level power management. |
| Dual independent 4-channel architecture | Permits simultaneous routing of two separate analog signal groups (e.g., sensor A + sensor B) with isolated fault domains. |
Applications
| Industrial Process Control | Avionics Signal Routing |
|---|---|
Use Scenario: Multiplexing thermocouple, RTD, and 4–20mA loop signals in PLC I/O modules exposed to field wiring transients. IC Role / Device Role / Timing Role: Dual-channel analog switch providing fault-isolated signal path selection before instrumentation amplifier and ADC stages. Use Value: Eliminates need for external overvoltage protection components while maintaining <0.5nA leakage for µV-level measurement accuracy. |
Use Scenario: Routing redundant flight control sensor signals (e.g., airspeed, angle-of-attack) in fly-by-wire systems where single-point failure must be avoided. IC Role / Device Role / Timing Role: Fault-tolerant demultiplexer directing primary and backup sensor outputs to separate monitoring circuits. Use Value: Guaranteed break-before-make and ±40V fault blocking prevent cross-channel coupling during lightning-induced surges or power faults. |
| ATE Equipment Channel Selection | Redundant Power Monitoring |
Use Scenario: Selecting DUT analog stimulus/response paths in automated test equipment with mixed-voltage test fixtures. IC Role / Device Role / Timing Role: High-voltage-tolerant multiplexer enabling safe connection of ±15V, ±5V, and single-ended 3.3V signals to shared measurement resources. Use Value: Single-supply operation (+4.5V to +36V) and rail-to-rail analog range support flexible fixture design without multiple supply domains. |
Use Scenario: Monitoring primary and backup DC bus voltages in telecom rectifier systems where overvoltage on one rail must not propagate to the other. IC Role / Device Role / Timing Role: Isolated analog switch feeding dual independent voltage monitors - each COM/NO pair electrically separated by internal substrate guard ring. Use Value: Internal GND/V− isolation plane provides >100dB digital-to-analog separation, preventing noise coupling into precision voltage references. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fault-protected analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG509FBRZ | Same pinout and function; 400Ω max RON, ±20V fault rating, -40°C to +85°C grade. | Limited to ±20V fault protection - insufficient for ±40V field-wiring requirements in heavy industrial environments. | Choose ADG509FBRZ only if system-level overvoltage is capped at ±20V and legacy ADI footprint reuse is mandatory. |
| MAX355CWE | Identical architecture and pinout; rated for 0°C to +70°C instead of -40°C to +85°C. | Not qualified for extended temperature operation - unsuitable for under-hood automotive or uncooled avionics enclosures. | Select MAX355CWE only for commercial-grade bench equipment where ambient temperature stays within 0°C–70°C. |
Compared with ADG509FBRZ and MAX355CWE, the MAX355EWE uniquely delivers ±40V fault tolerance *and* -40°C to +85°C operation in the same SOIC-W package - making it the sole option for industrial control cabinets and airborne electronics requiring both extended temperature range and highest overvoltage immunity.
Availability
MAX355EWE is available at Aetrix Electronics and suitable for industrial process control, avionics signal routing, and ATE equipment requiring stable component supply across extended temperature and high-fault environments.
Supply support for MAX355EWE 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 demanding industrial, medical, and aerospace applications.
The MAX354/MAX355 product line was engineered specifically for fault-tolerant analog signal routing in harsh environments - prioritizing ±40V overvoltage survival, rail-independent logic, and guaranteed break-before-make timing over raw speed or low RON.
FAQ
What is the maximum overvoltage the MAX355EWE can withstand with power supplies turned off?
The MAX355EWE withstands continuous ±40V overvoltage on any analog input or output terminal even when V+ and V− are disconnected or at 0V. This is achieved through its series FET gate structure, which blocks current flow using sub-microamp leakage paths - eliminating the need for external protection components in field-wiring applications.
Does the MAX355EWE support single-supply operation, and what is the valid voltage range?
Yes, the MAX355EWE supports single-supply operation from +4.5V to +36V. In this configuration, V− must be connected to GND. The analog signal range becomes 0V to (V+ − 1.5V), and digital logic thresholds remain referenced to GND - ensuring reliable interface with 3.3V or 5V microcontrollers without level shifters.
Is the MAX355EWE pin-compatible with the ADG508F/ADG509F, and are there any functional trade-offs?
Yes, the MAX355EWE is pin-compatible with ADG508F/ADG509F in the 16-pin SOIC package. However, the MAX355EWE offers superior ±40V fault protection (vs. ±20V for ADG509F) and lower 350Ω max on-resistance (vs. 400Ω). No PCB changes are needed, but system-level overvoltage margins must be re-evaluated to leverage the full ±40V capability.
How does the MAX355EWE behave during power-up or power-down sequences?
The MAX355EWE requires no power-up sequencing: V+, V−, and digital inputs may power up in any order. During power-down, all switches automatically turn OFF, and the device enters a high-impedance fault-protected state - preventing back-driving or signal leakage. This behavior is guaranteed across the full -40°C to +85°C temperature range.
Can the MAX355EWE be used as a demultiplexer, and does fault protection remain active in that mode?
Yes, the MAX355EWE operates bidirectionally and functions as a demultiplexer when the COM terminals receive the input signal and NO terminals deliver outputs. Fault protection remains fully active in demux mode - including ±40V tolerance, output clamping, and break-before-make timing - unlike earlier-generation fault-protected muxes that disable protection during demux operation.
MAX355EWE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 350Ohm
- Channel-to-Channel Matching (ΔRon):
- 7Ohm
- Voltage - Supply, Single (V+):
- 4.5V ~ 36V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 18V
- Switch Time (Ton, Toff) (Max):
- 250ns, 200ns
- -3db Bandwidth:
- -
- Charge Injection:
- 80pC
- Channel Capacitance (CS(off), CD(off)):
- 1.6pF, 5pF
- 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
MAX355EWE FAQ
1.How can I place an order for MAX355EWE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX355EWE 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 MAX355EWE reliable?
The price and inventory of MAX355EWE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX355EWE is usually 5 days.
3.What payment methods are accepted for MAX355EWE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX355EWE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX355EWE?
MAX355EWE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX355EWE 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 MAX355EWE?
For technical support, including MAX355EWE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX355EWE requirements.
6.How does Aetrix verify that MAX355EWE is sourced from the original manufacturer or authorized distributors?
All MAX355EWE 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 MAX355EWE meets industry standards.
7.What is the process for return or replacement of MAX355EWE?
All MAX355EWE units undergo pre-shipment inspection (PSI). If there is an issue with MAX355EWE, 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 MAX355EWE part is unused and in its original packaging.
Return procedure for MAX355EWE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX355EWE 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
