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Analog Devices Inc./Maxim Integrated MAX355CPE+
- Part No.:
- MAX355CPE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX355CPE+.pdf
- Description:
- IC SWITCH SP4T X 2 350OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,148
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Product details
Overview
MAX355CPE+ 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), delivers 350Ω max on-resistance, guarantees break-before-make switching, and withstands ±40V overvoltage with supplies off. It is used in ATE equipment for robust analog channel selection under fault conditions.
For engineers reviewing the MAX355CPE+ datasheet, MAX355CPE+ pinout, MAX355CPE+ application, or MAX355CPE+ equivalent, key selection criteria include fault protection level (±40V with supplies off), leakage current (<0.5nA at +25°C), on-resistance matching (≤15Ω), logic compatibility (TTL/CMOS without pull-ups), and dual 4-channel topology with independent COMA/COMB outputs.
Technical Context
The MAX355CPE+ implements a series N-channel/P-channel/N-channel FET structure that actively clamps overvoltage inputs to ~1.5V below supply rails while limiting fault current to sub-microamp levels. Its digital interface uses fixed 0.8V/2.4V logic thresholds referenced to GND, ensuring TTL/CMOS compatibility across temperature and supply variations.
All eight analog terminals (NO1A–NO4A, NO1B–NO4B, COMA, COMB) are bidirectional and electrically identical. The device guarantees break-before-make timing (≥100ns) and supports demultiplexing operation with full fault protection-unlike earlier generations-while maintaining <5nA leakage at +85°C and <0.1pC charge injection at ±15V supplies.
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 and legacy ±15V systems |
| On-Resistance (RON) | 350Ω max - ensures minimal signal attenuation and gain error in precision data acquisition paths |
| Input Leakage Current | <0.5nA at +25°C - preserves high-impedance sensor node integrity and reduces offset drift |
| Fault Protection | ±40V with supplies off - protects downstream ADCs and amplifiers during power sequencing or rail collapse |
| Break-Before-Make Interval | ≥100ns - prevents momentary input-to-input shorting during channel switching in redundant systems |
| Logic Thresholds | 0.8V low / 2.4V high - eliminates need for external pull-up resistors when interfacing with standard microcontrollers |
| Charge Injection | 80pC max at ±15V - limits voltage glitch on 1000pF loads to ≤80mV, critical for S/H accuracy |
Pinout & Package
MAX355CPE+ is housed in a 16-pin plastic DIP package (0.300" wide) with through-hole mounting and industry-standard footprint. Pin 1 is marked by a notch or dot; pin numbering follows standard counter-clockwise convention from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1 | Binary address inputs | Select one of four channels per section (COMA or COMB); logic thresholds fixed at 0.8V/2.4V |
| EN | Active-high enable input | Disables all switches when low; guarantees all channels OFF with supplies off |
| V+, V− | Power supply rails | V− connects to GND for single-supply use; total rail span defines RON and signal swing |
| GND | Analog/digital reference | Common return for logic thresholds and internal clamp circuitry; forms isolation barrier |
| NO1A–NO4A, NO1B–NO4B | Bidirectional analog I/O | Electrically identical; support mux/demux modes with full fault protection in both directions |
| COMA, COMB | Independent common outputs | Each serves its own 4-channel group; no internal connection between COMA and COMB |
Key Features
| Feature | Design Value |
|---|---|
| Fault protection with supplies off | Withstands ±40V continuous overvoltage at any analog terminal while drawing <100nA total leakage |
| Output clamping behavior | Clamps active output to ~1.5V below V+ and ~3V above V−, preserving polarity and preventing latch-up |
| No power-up sequencing required | Operates safely regardless of V+/V− ramp order or timing - eliminates system-level sequencing complexity |
| Demultiplexing capability | Supports true bidirectional signal flow: analog input applied to COMA/COMB routes to selected NOx terminal |
| Low crosstalk isolation | 92dB typical off-isolation at 100kHz (RL = 1.5kΩ) - maintains signal integrity in multi-channel mixed-signal systems |
Applications
| ATE Equipment | Avionics Signal Routing |
|---|---|
Use Scenario: Automated test systems route sensor and actuator signals across hundreds of DUT channels under varying fault conditions. IC Role / Device Role / Timing Role: Dual 4-channel analog multiplexer providing isolated, fault-tolerant signal path selection with guaranteed break-before-make timing. Use Value: Enables uninterrupted testing during ±40V transients (e.g., ESD events or power rail faults) without damaging measurement front-ends or requiring external protection diodes. |
Use Scenario: Flight control computers switch between primary and backup sensor inputs (e.g., airspeed, angle-of-attack) in real time. IC Role / Device Role / Timing Role: Fault-protected analog switch ensuring fail-safe redundancy switching with no input shorting or polarity reversal during overvoltage events. Use Value: Maintains signal continuity and polarity integrity even when sensors experience lightning-induced transients up to ±40V, meeting DO-160 Section 22 requirements. |
| Industrial Process Control | Data-Acquisition Systems |
Use Scenario: PLC analog I/O modules condition and route 4–20mA or ±10V field signals from valves, transmitters, and actuators. IC Role / Device Role / Timing Role: High-voltage-tolerant multiplexer handling multiple sensor inputs while surviving wiring faults and ground loops. Use Value: Eliminates need for discrete TVS diodes and series resistors per channel, reducing BOM count and PCB area in DIN-rail mounted controllers. |
Use Scenario: Precision DAQ systems sample thermocouples, strain gauges, and RTDs across multiple channels with minimal crosstalk and offset drift. IC Role / Device Role / Timing Role: Low-leakage (0.5nA), low-RON (350Ω), matched-channel analog switch enabling 16-bit+ resolution measurements. Use Value: Delivers <0.001% gain error and <1µV offset contribution over temperature, supporting IEEE 1057-compliant calibration routines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG509FKNZ | Pin-compatible but lacks ±40V fault protection with supplies off; max overvoltage = ±20V with supplies on only | Suitable for benign environments where power remains stable; not rated for ATE or avionics fault transients | Select ADG509FKNZ only if system-level protection already exists and ±40V-with-supplies-off immunity is unnecessary |
| DG459DN-E3 | Same dual 4-channel topology but no integrated fault-protection circuitry; requires external clamps and current limiting | Used in cost-sensitive industrial designs where board space allows discrete protection components | Choose DG459DN-E3 when BOM flexibility and lower unit cost outweigh integration benefits and reliability assurance |
Compared with ADG509FKNZ and DG459DN-E3, the MAX355CPE+ provides unique integrated fault protection that eliminates external components, guarantees safe operation during power loss, and maintains signal polarity - making it the only option qualified for unattended ATE and safety-critical avionics routing.
Availability
MAX355CPE+ is available at Aetrix Electronics and suitable for ATE equipment, avionics signal routing, and industrial process control requiring stable component supply, long-term lifecycle support, and guaranteed fault-protection performance across temperature extremes.
Supply support for MAX355CPE+ 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 fabless semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX354/MAX355 product line was engineered specifically for fault-tolerant analog signal routing in mission-critical systems where overvoltage survival, power sequencing independence, and bidirectional demux capability are mandatory design requirements.
FAQ
What is the maximum overvoltage the MAX355CPE+ can withstand with power supplies disconnected?
The MAX355CPE+ withstands continuous ±40V overvoltage at any analog input or output terminal-even when V+ and V− are at 0V. This is achieved via its series N/P/N FET structure, which blocks conduction while limiting leakage to <100nA. This capability is explicitly tested and guaranteed per Absolute Maximum Ratings, making MAX355CPE+ suitable for systems subject to wiring faults or uncontrolled power-down sequences.
Does the MAX355CPE+ support demultiplexing operation, and how is fault protection maintained in that mode?
Yes, the MAX355CPE+ fully supports demultiplexing: an analog signal applied to COMA or COMB routes to the selected NOxA or NOxB channel, with identical fault protection as in multiplexing mode. When operated as a demux, overvoltage on any NOx terminal still triggers the same clamp action-output voltage is limited to ~1.5V below V+ or ~3V above V−-and all unselected channels remain safely isolated. This bidirectional protection is confirmed in the Detailed Description section and functional diagrams.
What is the guaranteed on-resistance matching between channels of the MAX355CPE+?
The MAX355CPE+ guarantees ∆RON ≤ 15Ω across all channels at TA = TMIN to TMAX, defined as RON(MAX) − RON(MIN). This matching ensures consistent gain and settling behavior when switching between channels in precision applications like calibrated DAQ systems. At +25°C, typical matching is tighter (≤7Ω), and the specification is verified across the full operating temperature range per Electrical Characteristics table.
Can the MAX355CPE+ operate from a single +12V supply, and what are the implications for analog signal range?
Yes, the MAX355CPE+ operates from a single +12V supply with V− tied to GND. In this configuration, the analog signal range is limited to approximately 0V to +10.5V (V+ − 1.5V), as the output clamps 1.5V below V+. The on-resistance increases slightly versus ±15V operation (typical 400Ω vs. 350Ω), and switching times lengthen by ~2×, but break-before-make timing and logic compatibility remain fully functional per the Electrical Characteristics table and Typical Operating Characteristics plots.
How does the MAX355CPE+ ensure TTL/CMOS logic compatibility without external pull-up resistors?
The MAX355CPE+ features fixed 0.8V logic-low and 2.4V logic-high thresholds referenced to GND-guaranteed across temperature and supply voltage. Input current remains <1µA at all logic levels, eliminating loading concerns. This allows direct interface with standard microcontroller GPIOs, FPGA I/O banks, and ASIC drivers without pull-ups, as confirmed in the Digital Interface Levels section and Electrical Characteristics table (VA_L/VA_H parameters).
MAX355CPE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
MAX355CPE+ FAQ
1.How can I place an order for MAX355CPE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX355CPE+ 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 MAX355CPE+ reliable?
The price and inventory of MAX355CPE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX355CPE+ is usually 5 days.
3.What payment methods are accepted for MAX355CPE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX355CPE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX355CPE+?
MAX355CPE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX355CPE+ 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 MAX355CPE+?
For technical support, including MAX355CPE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX355CPE+ requirements.
6.How does Aetrix verify that MAX355CPE+ is sourced from the original manufacturer or authorized distributors?
All MAX355CPE+ 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 MAX355CPE+ meets industry standards.
7.What is the process for return or replacement of MAX355CPE+?
All MAX355CPE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX355CPE+, 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 MAX355CPE+ part is unused and in its original packaging.
Return procedure for MAX355CPE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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