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Analog Devices Inc./Maxim Integrated MAX4534ESD+T
- Part No.:
- MAX4534ESD+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4534ESD+T.pdf
- Description:
- IC SWITCH SP4T X 1 400OHM 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,604
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Product details
Overview
The MAX4534ESD+T from Maxim Integrated is a fault-protected, single 4-to-1 analog multiplexer designed for high-voltage signal routing in harsh environments. It operates from ±4.5V to ±20V dual supplies or +9V to +36V single supply, delivers ≤400Ω on-resistance, supports rail-to-rail signal handling, and provides ±40V overvoltage protection with supplies off - enabling robust operation in industrial data-acquisition and avionics systems.
For engineers reviewing the MAX4534ESD+T datasheet, MAX4534ESD+T pinout, MAX4534ESD+T application, or MAX4534ESD+T equivalent, key selection criteria include fault-protection thresholds (±40V power-off / ±25V power-on), 20ns fault response time, TTL/CMOS-compatible logic inputs, and TSSOP-14 packaging for space-constrained high-reliability designs.
Technical Context
The MAX4534ESD+T uses dual parallel FET architecture (N- and P-channel) per channel to achieve low on-resistance and true rail-to-rail signal pass-through. Its fault protection relies on dedicated comparators monitoring each NO_ input against V+ and V−, triggering clamping FETs (N2/P2) within 20ns when overvoltage exceeds ±150mV beyond rails.
During fault conditions, the device forces NO_ pins into high-impedance state regardless of switch enable status, while actively clamping COM output to V+ (positive fault) or V− (negative fault) via booster FETs capable of ±10mA sourcing/sinking - all without requiring power-supply sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±4.5V to ±20V dual or +9V to +36V single - supports wide industrial and avionic power architectures |
| On-Resistance (max) | 400Ω - ensures minimal signal attenuation and voltage drop in precision analog paths |
| Fault Response Time | 20ns typ - enables protection against fast transients before downstream circuit damage occurs |
| Fault Protection (power off) | ±40V on NO_ pins - allows safe connection to unpowered systems or hot-swap scenarios |
| Logic Compatibility | TTL/CMOS thresholds (0.8V low / 2.4V high) - interoperable with standard digital controllers at +12V or ±15V supplies |
| Signal Range (fault-free) | Rail-to-rail (V− to V+) - preserves full dynamic range of sensors, DACs, and ADCs |
| Off-Leakage (NO_, 25°C) | ±0.5nA max - prevents loading of high-impedance sources like piezoelectric sensors |
Pinout & Package
MAX4534ESD+T is housed in a 14-pin TSSOP package (JEDEC MO-153, 5.0mm × 4.4mm × 1.2mm), optimized for automated assembly and thermal performance in dense PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 A0 | Address Bit 0 | Selects one of four analog inputs (NO1–NO4) in binary encoding with A1 |
| 2 EN | Enable Input | Active-high logic control; all channels disabled when low, all off when supplies removed |
| 3 V− | Negative Supply | Provides return path for negative rail; required for dual-supply operation and fault clamping |
| 4 NO1 | Channel Input 1 | Fault-protected analog input; withstands ±40V with supplies off, ±25V with supplies on |
| 5 NO2 | Channel Input 2 | Fault-protected analog input; electrically identical to NO1 with matched RON ≤10Ω |
| 7 COM | Analog Output | Common output node; not fault-protected - must remain within V− to V+ during operation |
| 11 NO3 | Channel Input 3 | Fault-protected analog input; shares same protection architecture and timing as NO1/NO2 |
| 10 NO4 | Channel Input 4 | Fault-protected analog input; completes 4-to-1 mux function with full channel matching |
| 14 A1 | Address Bit 1 | MSB of 2-bit address; used with A0 to decode NO1–NO4 selection (00–11) |
| 13 GND | Ground Reference | Logic ground for internal translators; ESD diodes connect to V+ and V− but no analog reference |
| 12 V+ | Positive Supply | Primary positive rail; powers logic core and drives P-channel gate drivers during fault clamping |
| 6,8,9 N.C. | No Connection | Unbonded pins; must remain unconnected to avoid parasitic coupling or mechanical stress |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports input signals spanning full V− to V+ range without distortion or clipping |
| ±40V fault protection (supplies off) | Enables safe interface with unpowered equipment or battery-backed subsystems |
| Break-before-make switching | Guarantees <200ns isolation between channels during address transitions - prevents signal shorting |
| 20ns fault detection & response | Minimizes transient energy delivered to protected circuitry during surge events |
| No supply sequencing required | Allows independent ramp-up/down of V+ and V− rails - simplifies power management design |
| Matched on-resistance (≤10Ω) | Ensures consistent gain and offset across all four channels in multi-sensor measurement systems |
Applications
| Industrial Data-Acquisition | Avionics Signal Routing |
|---|---|
Use Scenario: Multiplexing outputs from multiple high-voltage pressure, temperature, and strain sensors in factory-floor PLC I/O modules. IC Role / Device Role: Fault-protected analog switch selecting sensor inputs to a shared ADC front-end under noisy 24V DC field wiring conditions. Use Value: Prevents latch-up or destruction from induced surges on long sensor cables while maintaining ≤400Ω signal path resistance for 16-bit accuracy. |
Use Scenario: Routing redundant flight-control signals (e.g., elevator position feedback) between primary and backup flight computers. IC Role / Device Role: High-integrity 4-to-1 selector ensuring continuity during hot-swap of powered avionics LRUs with ±28V supply tolerance. Use Value: Survives ±40V faults during connector mating/unmating and maintains <20ns fault response to protect fly-by-wire integrity. |
| Redundant Power Monitoring | Process Control Loop Backup |
Use Scenario: Monitoring voltage/current from multiple AC/DC power supplies feeding critical server racks or telecom rectifiers. IC Role / Device Role: Isolating and selecting between redundant supply telemetry lines before conditioning and digitization. Use Value: Withstands accidental connection to live 48V DC or 277V AC line transients without damage, preserving system uptime. |
Use Scenario: Switching between primary and backup 4–20mA current-loop transmitters in chemical plant reactor control systems. IC Role / Device Role: Fail-safe analog mux that defaults to open-circuit (all channels off) when power fails, preventing erroneous actuator commands. Use Value: Eliminates need for external crowbar circuits or relays - reduces BOM count and improves MTBF in SIL2-rated loops. |
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 |
|---|---|---|---|
| MAX4534EUD+ | Same electrical specs; packaged in 14-pin TSSOP vs. MAX4534ESD+T's 14-pin TSSOP - identical footprint and thermal profile | No functional difference; EUD+ denotes tape-and-reel packaging variant for SMT production | Select MAX4534EUD+ for volume reel-based assembly; MAX4534ESD+T is functionally identical and pin-compatible |
| ADG5412BRUZ | Quad SPST switch (not 4-to-1); ±40V fault protection; 12Ω typical RON; requires external address decoding logic | Requires additional logic IC and PCB area to implement 4-to-1 function; better for distributed switching than centralized muxing | Choose ADG5412BRUZ only if discrete channel control is preferred over integrated address decoding |
Compared with MAX4534EUD+, MAX4534ESD+T offers identical performance and packaging - differing only in reel orientation and moisture sensitivity level (MSL). Against ADG5412BRUZ, MAX4534ESD+T integrates address decoding and delivers simpler, more compact 4-to-1 routing without external logic overhead.
Availability
MAX4534ESD+T is available at Aetrix Electronics and suitable for industrial data-acquisition, avionics signal routing, and redundant power monitoring requiring stable component supply across extended temperature ranges (−40°C to +85°C).
Supply support for MAX4534ESD+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 semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for demanding industrial, automotive, and communications applications.
The MAX4534ESD+T belongs to Maxim's fault-protected analog switch family, engineered specifically for high-voltage signal integrity and survivability in mission-critical systems where overvoltage transients are common.
FAQ
What is the maximum allowable voltage on the NO_ pins of the MAX4534ESD+T when power is off?
The MAX4534ESD+T guarantees ±40V fault protection on all NO_ pins (NO1–NO4) with supplies disconnected. This allows safe connection to unpowered subsystems or battery-backed circuits without risk of damage - a key requirement in hot-swap and maintenance scenarios. The specification is validated per Absolute Maximum Ratings and confirmed in the Electrical Characteristics table under "NO_ Overvoltage with Switch Power Off".
Does the MAX4534ESD+T require power-supply sequencing between V+ and V−?
No, the MAX4534ESD+T does not require power-supply sequencing. Its internal logic-level translators and fault comparators operate independently of relative ramp rates between V+ and V−, enabling flexible power-up/down sequences in complex systems. This eliminates the need for external sequencing circuitry and is explicitly stated in the Features list and Applications Information section.
Is the COM pin fault-protected on the MAX4534ESD+T?
No, the COM pin on the MAX4534ESD+T is not fault-protected. Per the Detailed Description and Absolute Maximum Ratings, only NO_ pins have integrated overvoltage protection. COM must remain within V− to V+ at all times; exceeding this range risks forward-biasing internal ESD diodes and causing permanent damage. This limitation is clearly documented in Note 1 of the Absolute Maximum Ratings table.
What is the on-resistance match between channels for the MAX4534ESD+T?
The MAX4534ESD+T guarantees an on-resistance match of ≤10Ω between any two channels (ΔRON = RON(MAX) − RON(MIN)). This tight matching ensures consistent gain, offset, and settling behavior across all four inputs - critical for precision multi-sensor systems where channel-to-channel calibration would otherwise be required. The value is specified in the Electrical Characteristics table at TA = +25°C.
Can the MAX4534ESD+T operate from a single +12V supply?
Yes, the MAX4534ESD+T supports single-supply operation from +9V to +36V, including +12V. In this configuration, V− is connected to GND, and the device maintains full fault protection, rail-to-rail signal handling, and TTL/CMOS logic compatibility. Electrical characteristics for +12V operation are fully specified in the "ELECTRICAL CHARACTERISTICS-Single +12V Supply" section of the datasheet.
MAX4534ESD+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 400Ohm
- Channel-to-Channel Matching (ΔRon):
- 2Ohm
- Voltage - Supply, Single (V+):
- 9V ~ 36V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 275ns, 200ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 5pF, 6.5pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -53dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MAX4534ESD+T FAQ
1.How can I place an order for MAX4534ESD+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4534ESD+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 MAX4534ESD+T reliable?
The price and inventory of MAX4534ESD+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4534ESD+T is usually 5 days.
3.What payment methods are accepted for MAX4534ESD+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4534ESD+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4534ESD+T?
MAX4534ESD+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4534ESD+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 MAX4534ESD+T?
For technical support, including MAX4534ESD+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4534ESD+T requirements.
6.How does Aetrix verify that MAX4534ESD+T is sourced from the original manufacturer or authorized distributors?
All MAX4534ESD+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 MAX4534ESD+T meets industry standards.
7.What is the process for return or replacement of MAX4534ESD+T?
All MAX4534ESD+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4534ESD+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 MAX4534ESD+T part is unused and in its original packaging.
Return procedure for MAX4534ESD+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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