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Analog Devices Inc./Maxim Integrated MAX4534EUD
- Part No.:
- MAX4534EUD
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4534EUD.pdf
- Description:
- IC SWITCH SP4TX1 400OHM 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,056
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Product details
Overview
MAX4534EUD from Maxim Integrated is a fault-protected, single 4-to-1 analog multiplexer IC designed for high-voltage signal routing in harsh environments. It operates with ±4.5V to ±20V dual supplies or +9V to +36V single supply, delivers ≤400Ω on-resistance, supports rail-to-rail signal handling up to ±25V (supplies on) or ±40V (supplies off), and features 20ns typical fault response time - enabling robust data acquisition in avionics and industrial control systems.
For engineers reviewing the MAX4534EUD datasheet, MAX4534EUD pinout, MAX4534EUD application, or MAX4534EUD equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed fault-protection behavior, and two rigorously cross-checked alternative parts for high-voltage multiplexer selection.
Technical Context
The MAX4534EUD implements dual-FET (N+P channel parallel) switch architecture to achieve low on-resistance and true rail-to-rail signal pass-through. Its fault protection relies on independent comparators monitoring each NO_ input against V+ and V−, triggering clamp FETs (N2/P2) within 20ns when overvoltage exceeds ±150mV beyond rails.
During fault conditions, NO_ pins become high-impedance regardless of enable or address state; COM output is clamped to V+ (positive fault) or V− (negative fault) via booster FETs capable of ±10mA sourcing/sinking. Non-fault-protected pins (A0, A1, EN, COM, GND) require external voltage limiting to avoid ESD diode conduction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±4.5V to ±20V dual or +9V to +36V single - supports wide industrial/avionic power architectures without level-shifting. |
| On-Resistance (max) | 400Ω - ensures minimal signal attenuation and thermal drift in precision sensor/mux chains. |
| Fault Protection (supplies on) | ±25V on NO_ pins - protects downstream circuitry during transients while maintaining operation at ±15V supplies. |
| Fault Protection (supplies off) | ±40V on NO_ pins - enables safe hot-swap or maintenance in powered-down systems. |
| Fault Response Time (typ) | 20ns - limits fault energy delivery to connected loads, critical for protecting sensitive ADC front-ends. |
| Rail-to-Rail Signal Handling | Voltage range from V− to V+ on COM/NO - preserves full dynamic range of bipolar signals without clipping. |
| Logic Compatibility | TTL/CMOS thresholds (0.8V low / 2.4V high) - interoperates directly with +12V or ±15V logic without interface buffers. |
Pinout & Package
MAX4534EUD is housed in a 14-pin plastic DIP package rated for –40°C to +85°C operation. Pin layout follows standard TSSOP/SO/DIP footprint compatibility per Maxim's pin configuration diagrams.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 A0 | Address Bit 0 | Selects one of four NO inputs (NO1–NO4); logic-compatible with TTL/CMOS levels. |
| 2 EN | Enable Input | Active-high control: disables all channels when low; all channels off at power loss. |
| 3 V− | Negative Supply | Bipolar supply rail; must be ≥–20V and ≤–4.5V (dual) or 0V (single-supply mode). |
| 4 NO1 | Channel Input 1 | Fault-protected analog input; withstands ±40V (power off) or ±25V (power on). |
| 5 NO2 | Channel Input 2 | Fault-protected analog input; electrically matched to NO1–NO4 for consistent RON. |
| 7 COM | Analog Output | Common output node; not fault-protected - must remain within V− to V+ range. |
| 10 NO4 | Channel Input 4 | Fault-protected analog input; same overvoltage rating and leakage as NO1–NO3. |
| 11 NO3 | Channel Input 3 | Fault-protected analog input; shares identical fault-clamp behavior and timing. |
| 12 V+ | Positive Supply | Bipolar supply rail; must be ≤+20V and ≥+4.5V (dual) or +9V to +36V (single). |
| 13 GND | Ground Reference | Logic ground; internal ESD diodes connect to V+ and V− - no analog path to ground. |
| 14 A1 | Address Bit 1 | MSB of 2-bit address; used with A0 to decode 4:1 channel selection (00–11). |
| 6, 8, 9 N.C. | No Connection | Unbonded pins; must remain unconnected to avoid parasitic coupling or latch-up. |
Key Features
| Feature | Design Value |
|---|---|
| No power-supply sequencing required | Enables safe startup/shutdown in multi-rail systems - V+, V−, and logic can power up/down in any order. |
| All channels off with power off | Prevents back-driving or unintended signal paths during brownout or maintenance. |
| Rail-to-rail signal handling | Maintains full analog swing from V− to V+ without distortion - essential for ±10V sensor interfaces. |
| Output clamped to supply during fault | COM is actively limited to V+ or V−, preventing downstream component damage during overvoltage events. |
| 1.0kΩ typical output clamp resistance | Ensures predictable current limiting (≤15mA at ±15V clamp) during sustained faults. |
Applications
| Avionics Sensor Multiplexing | Industrial Redundant I/O |
|---|---|
|
Use Scenario: Routing multiple aircraft engine temperature and pressure sensors to a shared ADC under EMI-prone, high-vibration conditions. IC Role / Device Role / Timing Role: Fault-protected 4:1 analog switch isolating sensor faults while maintaining signal integrity across ±15V rails. Use Value: Prevents single-point sensor overvoltage from disabling entire measurement chain - improves system MTBF by eliminating cascading failures. |
Use Scenario: Selecting between primary and backup analog outputs in PLC analog output modules with hot-swap capability. IC Role / Device Role / Timing Role: High-voltage multiplexer enabling seamless switchover during field maintenance without powering down control system. Use Value: ±40V fault tolerance with supplies off allows safe insertion/removal of I/O cards while main system remains operational. |
| Process Control Signal Conditioning | High-Voltage Data Acquisition Front-End |
|
Use Scenario: Consolidating 4-channel 4–20mA loop signals into a single isolation amplifier stage in hazardous-area transmitters. IC Role / Device Role / Timing Role: Analog switch providing galvanic isolation interface with integrated overvoltage clamping on field-side inputs. Use Value: Eliminates need for external TVS diodes and series resistors - reduces BOM count and PCB area in explosion-proof enclosures. |
Use Scenario: Front-end multiplexing for 16-bit precision ADCs sampling ±10V industrial sensor outputs in noisy factory environments. IC Role / Device Role / Timing Role: Low-RON, matched-channel switch minimizing gain error and crosstalk between channels. Use Value: 10Ω max RON match ensures <0.01% channel-to-channel gain mismatch - preserves measurement accuracy across all 4 inputs. |
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 |
|---|---|---|---|
| MAX4534ESD | Same electrical specs; 14-pin narrow SO package; –40°C to +85°C rating. | Preferred for surface-mount production; requires reflow-compatible layout vs. through-hole DIP. | Select MAX4534ESD for automated assembly; MAX4534EUD for prototyping, socket-based testing, or legacy through-hole designs. |
| ADG508F | ±15V max supply; ±40V fault protection only with supplies off; 450Ω max RON; no rail-to-rail signal handling. | Limited to lower-voltage systems; cannot pass signals beyond ±15V without clipping. | Choose ADG508F only if supply rails ≤±15V and rail-to-rail operation is unnecessary - otherwise MAX4534EUD offers superior voltage range and performance. |
Compared with MAX4534ESD, MAX4534EUD provides identical fault protection and switching performance but in a through-hole DIP package for manual assembly and test flexibility; versus ADG508F, MAX4534EUD extends usable signal range by ±10V, reduces on-resistance by 50Ω, and adds true rail-to-rail capability - making it suitable for higher-voltage industrial and avionic signal chains where signal fidelity is critical.
Availability
MAX4534EUD is available at Aetrix Electronics and suitable for avionics sensor routing, industrial redundant I/O modules, and high-voltage data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4534EUD 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 MAX4534EUD belongs to Maxim's fault-protected analog switch family, engineered specifically for high-reliability signal routing in environments prone to voltage transients, ESD, and power interruption - targeting avionics, process control, and test equipment.
FAQ
What is the maximum allowable voltage on NO pins of the MAX4534EUD when supplies are powered off?
The MAX4534EUD guarantees ±40V fault protection on all NO_ pins (NO1–NO4) with supplies powered off. This allows safe connection to live field wiring during maintenance or hot-swap operations without risk of device damage, provided COM remains within V− to V+ range. The specification is 100% tested per Maxim's datasheet Absolute Maximum Ratings table.
Does the MAX4534EUD support rail-to-rail signal operation with single-supply configuration?
Yes, the MAX4534EUD supports rail-to-rail signal handling from V− to V+ in both dual-supply (±4.5V to ±20V) and single-supply (+9V to +36V, with V− = GND) configurations. In single-supply mode, signals from 0V to V+ pass without clipping - confirmed by Typical Operating Characteristics plots (toc02, toc04) and the "Fault-Free Analog Signal Range" parameter (V− to V+) in Electrical Characteristics tables.
How does fault protection behave on the COM pin of the MAX4534EUD?
The COM pin of the MAX4534EUD is explicitly stated as *not fault-protected* in the datasheet Detailed Description and Absolute Maximum Ratings Note 1. Applying voltages outside V− to V+ on COM risks forward-biasing internal ESD diodes, causing excessive current flow and potential damage. External clamping or voltage limiting is mandatory if COM connects to circuits operating beyond supply rails.
What is the on-resistance match between channels for the MAX4534EUD, and why does it matter?
The MAX4534EUD guarantees ≤10Ω maximum on-resistance match (∆RON) between any two channels at TA = +25°C. This tight matching minimizes gain error variation when sequentially sampling multiple sensors into a single ADC - critical for high-accuracy multichannel data acquisition where channel-to-channel consistency directly impacts measurement repeatability and calibration stability.
Can the MAX4534EUD operate with asymmetric dual supplies, such as +12V and –5V?
Yes, the MAX4534EUD supports asymmetric dual supplies as long as V+ − V− ≤ 44V and each rail stays within its Absolute Maximum Rating: V+ ≤ +44V, V− ≥ −44V, and |V+| ≥ 4.5V and |V−| ≥ 4.5V. For example, +12V/–5V (17V total) is valid. However, fault protection range scales with actual supply values - e.g., ±25V fault tolerance applies only with ±15V supplies, per datasheet Note 6.
MAX4534EUD 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:
- 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-TSSOP
MAX4534EUD FAQ
1.How can I place an order for MAX4534EUD through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4534EUD 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 MAX4534EUD reliable?
The price and inventory of MAX4534EUD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4534EUD is usually 5 days.
3.What payment methods are accepted for MAX4534EUD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4534EUD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4534EUD?
MAX4534EUD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4534EUD 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 MAX4534EUD?
For technical support, including MAX4534EUD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4534EUD requirements.
6.How does Aetrix verify that MAX4534EUD is sourced from the original manufacturer or authorized distributors?
All MAX4534EUD 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 MAX4534EUD meets industry standards.
7.What is the process for return or replacement of MAX4534EUD?
All MAX4534EUD units undergo pre-shipment inspection (PSI). If there is an issue with MAX4534EUD, 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 MAX4534EUD part is unused and in its original packaging.
Return procedure for MAX4534EUD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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