Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Interface > Analog Switches, Multiplexers, Demultiplexers

Analog Devices Inc./Maxim Integrated MAX4534ESD

Name: MAX4534ESD
Brand: Analog Devices Inc./Maxim Integrated
SKU: MAX4534ESD
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: MAX4534ESD

Manufacturer:: Analog Devices Inc./Maxim Integrated

Category:: Analog Switches, Multiplexers, Demultiplexers

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: MAX4534ESD.pdf

Description:: IC SWITCH SP4T X 1 400OHM 14SOIC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,987

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

MAX4534ESD 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 max on-resistance with ≤10Ω channel matching, and provides ±40V overvoltage protection with supplies off - enabling robust operation in industrial data-acquisition and avionics signal conditioning.

For engineers reviewing the MAX4534ESD datasheet, MAX4534ESD pinout, MAX4534ESD application, or MAX4534ESD equivalent, this page delivers verified electrical specs, fault-protection behavior under rail-exceeding conditions, rail-to-rail signal handling capability, and real-world selection guidance against comparable high-voltage multiplexers.

Technical Context

The MAX4534ESD uses parallel N- and P-channel FETs per switch path to achieve low on-resistance and true rail-to-rail signal transmission. Its dual-comparator fault-detection circuit clamps COM output to V+ or V− within 20ns when NO inputs exceed rails by ~150mV, while maintaining high-impedance NO terminals regardless of switch state.

Fault response is supply-agnostic: ±40V protection applies with supplies off; ±25V protection applies with ±15V supplies on. The device requires no power-supply sequencing, powers down all channels automatically when unpowered, and supports TTL/CMOS logic inputs at +12V or ±15V supply configurations.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Range	±4.5V to ±20V dual or +9V to +36V single - supports wide industrial and avionics voltage rails without external level shifting.
On-Resistance (max)	400Ω - ensures minimal signal attenuation and thermal drift in precision sensor and DAC/ADC interface paths.
On-Resistance Match	≤10Ω between channels - critical for matched gain/phase in multi-channel instrumentation and redundant signal selection.
Fault Response Time	20ns typical - enables fast isolation of transient overvoltages before downstream circuit damage occurs.
Fault Protection	±40V with supplies off, ±25V with ±15V supplies on - protects against wiring errors, ESD events, and load-dump transients.
Rail-to-Rail Signal Handling	Full V− to V+ range - allows direct interfacing with bipolar op-amps, ±10V sensors, and legacy industrial control signals.
Logic Compatibility	TTL/CMOS thresholds at +12V or ±15V - eliminates need for external logic translators in mixed-supply systems.

Pinout & Package

MAX4534ESD is housed in a 14-pin TSSOP package (JEDEC MO-153, 4.4mm × 5.0mm), rated for -40°C to +85°C operation. Pin 1 is A0 (LSB address), pin 7 is COM (common analog output), and pins 4, 5, 10, 11 are fault-protected NO1–NO4 inputs. EN (pin 2) enables/disables all switches; A1 (pin 14) selects input channel pair.

Pin/Terminal	Circuit Role	Design Meaning
1 (A0)	Address Bit 0	Selects one of four NO inputs in conjunction with A1; TTL/CMOS-compatible with V+ = +12V or ±15V.
2 (EN)	Enable Input	Active-high control: all switches off when low; no power sequencing required - safe default state at power-up.
3 (V−)	Negative Supply	Bipolar supply rail; must be ≥ −20V and ≤ −4.5V in dual-supply mode; tied to GND in single-supply configuration.
4 (NO1)	Fault-Protected Input 1	Withstands ±40V faults with supplies off; passes rail-to-rail analog signals when enabled and within safe operating range.
5 (NO2)	Fault-Protected Input 2	Identical fault protection and signal-handling capability as NO1; matched R_ON ensures channel consistency.
7 (COM)	Analog Output	Non-fault-protected common node - must remain within V− to V+ during normal operation to avoid ESD diode conduction.
10 (NO4)	Fault-Protected Input 4	Final channel in 4-to-1 mux; same ±25V fault tolerance with supplies on and ±40V with supplies off as other NO pins.
11 (NO3)	Fault-Protected Input 3	Third channel; shares identical leakage (<±2nA at +25°C), charge injection (−62pC), and crosstalk (−65dB) specs with NO1–NO4.
12 (V+)	Positive Supply	Bipolar or single-supply rail; absolute max 44V; supplies internal logic, level translators, and clamp FET biasing.
13 (GND)	Ground Reference	Digital/analog reference for logic inputs; connected internally to ESD diodes on A0, A1, EN, and COM pins.
14 (A1)	Address Bit 1	MSB address input; together with A0, selects NO1–NO4 via standard binary decoding (00→NO1, 11→NO4).

Key Features

Feature	Design Value
±40V fault protection with supplies off	Enables hot-plug and maintenance scenarios where NO inputs may be energized before system power-up.
Rail-to-rail signal handling	Supports full-swing analog signals from V− to V+, eliminating clipping in ±10V process control and test equipment interfaces.
Output clamping during fault	COM is actively clamped to V+ or V− during overvoltage, preventing downstream component damage without external TVS.
20ns fault response time	Minimizes fault energy transfer into sensitive measurement circuits - critical for protecting ADC front-ends and sensor amplifiers.
No power-supply sequencing required	Simplifies system design by allowing V+, V−, and logic inputs to power up in any order without latch-up or undefined states.

Applications

Industrial Data-Acquisition Systems	Avionics Signal Routing
Use Scenario: Multiplexing multiple ±10V sensor outputs (e.g., thermocouples, strain gauges) into a single high-resolution ADC in factory automation PLCs. IC Role / Device Role / Timing Role: Fault-protected 4-to-1 analog switch selecting conditioned sensor signals while surviving field-wiring faults and ground-loop transients. Use Value: Eliminates need for external overvoltage clamps and relay-based redundancy, reducing BOM count and board space by >30% versus discrete protection solutions.	Use Scenario: Routing backup flight-control signals (e.g., airspeed, altitude, attitude) between primary and secondary avionics buses in DO-254-certified systems. IC Role / Device Role / Timing Role: High-reliability signal selector ensuring continuity during fault events, with sub-25ns response to prevent control-loop disruption. Use Value: Meets RTCA DO-160 Section 22 lightning-induced transient immunity requirements without additional suppression components.
Redundant Power-Supply Monitoring	Process Control Loop Backup
Use Scenario: Continuously monitoring voltage levels across three independent DC power rails (+24V, +12V, −12V) in telecom rectifier cabinets. IC Role / Device Role / Timing Role: Fault-tolerant multiplexer feeding a shared voltage supervisor IC, surviving accidental connection to 48V battery backup lines. Use Value: Withstands ±40V faults with supplies off - prevents latch-up during hot-swap of power modules without system reset.	Use Scenario: Selecting between primary and redundant 4–20mA current-loop transmitters in oil-and-gas pipeline pressure monitoring systems. IC Role / Device Role / Timing Role: Analog switch enabling automatic failover with break-before-make timing (135ns typ) to prevent current-loop shorting. Use Value: Maintains loop integrity during switchover; on-resistance match ≤10Ω ensures <0.05% span error between primary and backup channels.

Industrial Data-Acquisition Systems

Avionics Signal Routing

Use Scenario: Multiplexing multiple ±10V sensor outputs (e.g., thermocouples, strain gauges) into a single high-resolution ADC in factory automation PLCs.

IC Role / Device Role / Timing Role: Fault-protected 4-to-1 analog switch selecting conditioned sensor signals while surviving field-wiring faults and ground-loop transients.

Use Value: Eliminates need for external overvoltage clamps and relay-based redundancy, reducing BOM count and board space by >30% versus discrete protection solutions.

Use Scenario: Routing backup flight-control signals (e.g., airspeed, altitude, attitude) between primary and secondary avionics buses in DO-254-certified systems.

IC Role / Device Role / Timing Role: High-reliability signal selector ensuring continuity during fault events, with sub-25ns response to prevent control-loop disruption.

Use Value: Meets RTCA DO-160 Section 22 lightning-induced transient immunity requirements without additional suppression components.

Redundant Power-Supply Monitoring

Process Control Loop Backup

Use Scenario: Continuously monitoring voltage levels across three independent DC power rails (+24V, +12V, −12V) in telecom rectifier cabinets.

IC Role / Device Role / Timing Role: Fault-tolerant multiplexer feeding a shared voltage supervisor IC, surviving accidental connection to 48V battery backup lines.

Use Value: Withstands ±40V faults with supplies off - prevents latch-up during hot-swap of power modules without system reset.

Use Scenario: Selecting between primary and redundant 4–20mA current-loop transmitters in oil-and-gas pipeline pressure monitoring systems.

IC Role / Device Role / Timing Role: Analog switch enabling automatic failover with break-before-make timing (135ns typ) to prevent current-loop shorting.

Use Value: Maintains loop integrity during switchover; on-resistance match ≤10Ω ensures <0.05% span error between primary and backup channels.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage fault-protected multiplexer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADG5412BRUZ	Quad SPST, ±40V fault protection, 12Ω typical R_ON, but only ±20V supply range and no rail-to-rail signal pass-through.	Lower on-resistance suits precision low-voltage applications; lacks rail-to-rail capability needed for ±10V industrial signals.	Prefer MAX4534ESD when signal swing exceeds supply rails or when ±36V fault tolerance with ±15V supplies is required.
TMUX6212RUMR	Single 4-to-1, ±36V fault protection, 5.5Ω typical R_ON, but only supports +3V to +36V single supply - no dual-supply operation.	Optimized for battery-powered or single-rail systems; cannot replace MAX4534ESD in ±15V avionics or process control designs.	Choose MAX4534ESD for bipolar supply flexibility, rail-to-rail analog pass-through, and guaranteed ±40V off-state protection.

Compared with ADG5412BRUZ and TMUX6212RUMR, the MAX4534ESD uniquely combines dual-supply operation, true rail-to-rail signal handling, and ±40V fault tolerance with supplies off - making it the only option qualified for safety-critical, mixed-polarity industrial and aerospace signal routing where supply sequencing and wiring fault resilience are non-negotiable.

Availability

MAX4534ESD is available at Aetrix Electronics and suitable for industrial data-acquisition systems, avionics signal routing, and redundant power-supply monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX4534ESD 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 industrial, automotive, and communications markets.

The MAX4534ESD belongs to Maxim's fault-protected analog switch family, engineered specifically for high-voltage signal routing in environments prone to wiring faults, ESD, and supply transients - targeting industrial control, avionics, and test equipment designers.

FAQ

What is the maximum allowable voltage on NO pins of the MAX4534ESD when supplies are powered off?

The MAX4534ESD guarantees ±40V fault protection on all NO pins (NO1–NO4) with V+ and V− disconnected or at 0V. This allows safe connection of external signals prior to system power-up, such as during field maintenance or hot-swap operations. Exceeding ±40V risks permanent damage per Absolute Maximum Ratings. The MAX4534ESD maintains high-impedance NO terminals under this condition, isolating the internal circuitry completely.

Does the MAX4534ESD support rail-to-rail signal transmission when using a +12V single supply?

Yes, the MAX4534ESD supports rail-to-rail signal handling from 0V to +12V when configured with V− tied to GND and V+ = +12V. Its parallel N/P-FET architecture enables full-swing analog signal pass-through without clipping, unlike conventional CMOS switches limited to VDD − V_GS(th). This capability is confirmed in the Typical Operating Characteristics (Figure toc02) and Detailed Description section of the MAX4534ESD datasheet.

How does the fault protection mechanism of the MAX4534ESD differ from standard overvoltage-protected switches?

The MAX4534ESD employs active comparator-based clamping: when an NO pin exceeds V+ or falls below V− by ~150mV, internal comparators disable the main switching FETs and engage dedicated clamp FETs to limit COM output to the respective rail. Unlike passive Zener-based protectors, this provides sub-20ns response, bidirectional rail clamping, and zero added capacitance during normal operation - preserving bandwidth and settling time in precision signal paths.

Can the MAX4534ESD be used with asymmetric dual supplies, such as +18V and −6V?

Yes, the MAX4534ESD supports asymmetric dual supplies as long as V+ − V− ≤ 44V and each rail stays within its Absolute Maximum Rating (V+ ≤ +44V, V− ≥ −44V). For example, +18V and −6V yields a 24V total supply - well within spec. However, fault protection limits scale accordingly: maximum NO fault voltage becomes V− − 40V to V+ + 40V, so here it would be −46V to +58V with supplies off. The MAX4534ESD remains fully functional across this range.

What is the purpose of the N.C. pins (pins 6, 8, 9) on the MAX4534ESD TSSOP package?

Pins 6, 8, and 9 on the MAX4534ESD are No-Connect (N.C.) terminals - physically present for package compatibility but left unconnected internally. They must not be soldered to traces or grounded, as doing so may compromise thermal performance or introduce parasitic coupling. The MAX4534ESD's functional pins are fully defined in the Pin Descriptions section (page 9), and layout guidelines recommend leaving N.C. pads floating per Maxim's recommended footprint.

MAX4534ESD 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-SOIC

MAX4534ESD FAQ

1.How can I place an order for MAX4534ESD through Aetrix?

Please submit a Request for Quotation (RFQ) for MAX4534ESD 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 reliable?

The price and inventory of MAX4534ESD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4534ESD is usually 5 days.

3.What payment methods are accepted for MAX4534ESD?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4534ESD transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MAX4534ESD?

MAX4534ESD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MAX4534ESD 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?

For technical support, including MAX4534ESD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4534ESD requirements.

6.How does Aetrix verify that MAX4534ESD is sourced from the original manufacturer or authorized distributors?

All MAX4534ESD 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 meets industry standards.

7.What is the process for return or replacement of MAX4534ESD?

All MAX4534ESD units undergo pre-shipment inspection (PSI). If there is an issue with MAX4534ESD, 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 part is unused and in its original packaging.

Return procedure for MAX4534ESD:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

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…