My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX354EWE+T
- Part No.:
- MAX354EWE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX354EWE+T.pdf
- Description:
- IC MUX 8:1 350OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:900
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX354EWE+T from Maxim Integrated is a fault-protected single 8-channel analog multiplexer 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. It protects against ±40V overvoltage with power off and clamps outputs to within 1.5V of supply rails during faults.
For engineers reviewing the MAX354EWE+T datasheet, MAX354EWE+T pinout, MAX354EWE+T application, or MAX354EWE+T equivalent, key selection criteria include fault-protection voltage margin, on-resistance matching across channels, leakage performance over temperature, and compatibility with TTL/CMOS logic without pull-ups in harsh environments.
Technical Context
The MAX354EWE+T implements a series N-channel/P-channel/N-channel FET structure that actively limits fault current to sub-microamp levels during overvoltage events-even with supplies off. Its analog signal range is limited to ±13.5V with ±15V supplies due to internal threshold-dependent FET turn-off.
Digital inputs use fixed 0.8V/2.4V logic thresholds referenced to GND, ensuring robust TTL/CMOS compatibility across supply voltages. Break-before-make timing is guaranteed at ≥100ns, and enable-controlled switching supports demultiplexing with full fault protection retained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance | 350Ω max - ensures minimal signal attenuation and gain error in precision analog paths |
| Fault Protection | ±40V with supplies off - enables safe connection to unpowered or floating external sensors/actuators |
| Input Leakage | <0.5nA at +25°C - preserves high-impedance sensor node integrity and low-offset measurement accuracy |
| Logic Thresholds | 0.8V low / 2.4V high - eliminates need for pull-up resistors when interfacing with standard microcontrollers |
| Supply Range | ±4.5V to ±18V dual or +4.5V to +36V single - supports wide industrial rail configurations including asymmetric supplies |
| Break-Before-Make | ≥100ns guaranteed - prevents momentary shorting between analog input channels during switching |
| Charge Injection | 15–180pC depending on supply/analog voltage - defines settling time impact on downstream sample-and-hold circuits |
Pinout & Package
MAX354EWE+T is housed in a 16-pin wide SO (SOIC-W) package with 0.3-inch body width and standard 1.27mm pitch. Pin 1 is A1 (MSB address), pin 8 is COM (common analog terminal), and pin 16 is A2 (LSB address). All pins are electrically defined per Maxim's official pin description table.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | Address Inputs | Select one of eight analog channels (A2 = LSB); logic thresholds fixed at 0.8V/2.4V independent of supply |
| EN | Enable Input | Active-high control: disables all switches when low; same logic thresholds as address pins |
| COM | Common Analog Terminal | Bidirectional path shared across all channels; must be connected to system reference point |
| NO1–NO8 | Normal Analog Terminals | Eight bidirectional analog I/Os; interchangeable with COM when used as demultiplexer |
| V+, V- | Power Supply Rails | Support dual ±4.5V to ±18V or single +4.5V to +36V operation; V- tied to GND for single-supply use |
| GND | Ground Reference | Logic threshold reference and substrate tie; forms isolation barrier between digital and analog sections |
Key Features
| Feature | Design Value |
|---|---|
| Fault-current limiting architecture | Sub-microamp leakage during ±40V overvoltage - avoids fuse blowing or PCB trace damage in field faults |
| Output clamping behavior | Clamps to V+ −1.5V / V− +1.5V during overvoltage - preserves polarity and prevents downstream component breakdown |
| No power-up sequencing required | Safe operation regardless of V+/V-/logic ramp order - simplifies system power management design |
| All-switches-off with supplies off | Zero conduction path when unpowered - eliminates backfeeding into dead subsystems |
| TTL/CMOS logic compatibility | 0.8V/2.4V thresholds with <1µA input current - direct interface to FPGA GPIO, MCU ports, and ASIC drivers |
Applications
| Industrial Process Monitoring | Avionics Sensor Multiplexing |
|---|---|
Use Scenario: Routing thermocouple, RTD, and pressure sensor signals in PLC analog input modules operating in 0–85°C ambient. IC Role / Device Role / Timing Role: Fault-protected analog switch enabling shared ADC front-end while surviving 40V transients from solenoid coil flyback. Use Value: Eliminates need for external TVS diodes and series resistors per channel, reducing BOM count by 30% and board area by 22%. | Use Scenario: Consolidating multiple air data, inertial, and engine parameter signals onto a centralized flight data acquisition unit. IC Role / Device Role / Timing Role: High-reliability multiplexer with guaranteed break-before-make preventing cross-channel coupling during rapid sensor sampling. Use Value: Maintains signal integrity under EMI-rich aircraft environments where ±25V common-mode spikes occur during actuator switching. |
| ATE Signal Path Switching | Redundant Power System Monitoring |
Use Scenario: Reconfiguring test head connections between DUT pins and precision source-measure units in semiconductor testers. IC Role / Device Role / Timing Role: Bidirectional analog switch supporting both multiplexing and demultiplexing modes with identical fault protection. Use Value: Enables hot-swappable test fixture design where channels may be exposed to unpowered DUTs up to ±40V before power application. | Use Scenario: Monitoring voltage/current on primary and backup DC distribution buses in telecom rectifier systems. IC Role / Device Role / Timing Role: Isolating monitoring circuitry from bus faults while maintaining continuous telemetry during failover events. Use Value: Prevents loss of supervisory data during bus short-circuit conditions-critical for meeting GR-1089-CORE immunity requirements. |
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 |
|---|---|---|---|
| ADG508F | Pin-compatible but rated only to ±20V fault protection; higher 450Ω on-resistance; no output clamping | Suitable for lower-voltage industrial systems where ±20V transients suffice and leakage tolerance >1nA | Choose ADG508F only if system-level fault voltage is confirmed ≤±20V and 100mΩ higher RON is acceptable |
| MAX358 | Same fault architecture but dual 4-channel configuration; shares identical 350Ω RON and leakage specs | Preferred when two independent 4-channel banks are needed instead of one 8-channel bank | Select MAX358 when board layout benefits from split channel grouping or when redundancy requires isolated banks |
Compared with ADG508F and MAX358, the MAX354EWE+T delivers superior ±40V fault margin and tighter on-resistance matching, making it optimal for avionics and high-energy industrial systems where absolute fault survivability is non-negotiable.
Availability
MAX354EWE+T is available at Aetrix Electronics and suitable for industrial process control, avionics data acquisition, and ATE equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX354EWE+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 demanding industrial, automotive, and communications applications.
The MAX354/MAX355 family was engineered specifically for fault-tolerant analog signal routing in safety-critical systems where overvoltage exposure cannot be avoided-prioritizing ruggedness over speed or ultra-low RON.
FAQ
What is the maximum overvoltage the MAX354EWE+T can withstand with power supplies turned off?
The MAX354EWE+T withstands continuous ±40V overvoltage on any analog terminal with V+ and V- disconnected or at 0V. This is achieved via its series FET structure, which blocks current flow using gate-source voltage biasing-ensuring no conduction path exists even when external signals exceed normal supply rails by 40V. This capability is fully specified in the Absolute Maximum Ratings table and verified across the -40°C to +85°C operating range.
Does the MAX354EWE+T support demultiplexing operation, and how does fault protection behave in that mode?
Yes, the MAX354EWE+T supports demultiplexing: apply the signal to COM and route it to NO1–NO8. Fault protection remains fully active-overvoltage on any NO pin is clamped and current-limited identically to multiplexing mode. The series FET architecture ensures bidirectional protection regardless of signal direction, and break-before-make timing is preserved. This capability is explicitly validated in the "Operation as a Demultiplexer" section of the datasheet.
How does the on-resistance of the MAX354EWE+T vary with analog signal voltage and temperature?
The MAX354EWE+T exhibits 350Ω max on-resistance at +25°C with ±10V analog signals and ±15V supplies. RON increases near supply rails due to FET threshold effects-e.g., rising to ~700Ω at ±13.5V. Over temperature, RON rises ~0.1%/°C; at +85°C it reaches ~420Ω. These variations are plotted in Figures 1a, 1b, and 2 of the datasheet and directly impact gain accuracy and channel-to-channel matching in precision applications.
Can the MAX354EWE+T operate from an asymmetric supply, such as +15V and -5V?
Yes, the MAX354EWE+T supports asymmetric supplies. With +15V/V- = -5V, the analog signal range becomes approximately -3.5V to +13.5V (clamped 1.5V below V+ and ~3V above V-). Digital thresholds remain stable at 0.8V/2.4V relative to GND. The device is tested and guaranteed for operation across ±4.5V to ±18V differential supply, making +15V/-5V well within specification and commonly used in motor control feedback systems.
Is the MAX354EWE+T pin-compatible with the MAX354CWE or MAX354EPE variants?
Yes, the MAX354EWE+T shares identical pinout and footprint with MAX354CWE (0°C to +70°C) and MAX354EPE (-40°C to +85°C) in the same 16-pin wide SO package. All three variants use the same die and bonding layout-only temperature grade and packaging differ. This allows drop-in replacement across commercial, extended, and military-grade versions without PCB redesign, provided thermal and reliability requirements align with the selected grade.
MAX354EWE+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):
- 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, 11pF
- 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
MAX354EWE+T FAQ
1.How can I place an order for MAX354EWE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX354EWE+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 MAX354EWE+T reliable?
The price and inventory of MAX354EWE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX354EWE+T is usually 5 days.
3.What payment methods are accepted for MAX354EWE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX354EWE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX354EWE+T?
MAX354EWE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX354EWE+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 MAX354EWE+T?
For technical support, including MAX354EWE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX354EWE+T requirements.
6.How does Aetrix verify that MAX354EWE+T is sourced from the original manufacturer or authorized distributors?
All MAX354EWE+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 MAX354EWE+T meets industry standards.
7.What is the process for return or replacement of MAX354EWE+T?
All MAX354EWE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX354EWE+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 MAX354EWE+T part is unused and in its original packaging.
Return procedure for MAX354EWE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX354EWE+T 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…
