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Analog Devices Inc./Maxim Integrated MAX4534CSD+
- Part No.:
- MAX4534CSD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4534CSD+.pdf
- Description:
- IC SWITCH SP4T X 1 400OHM 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,523
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Product details
Overview
The MAX4534CSD+ 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 from ±4.5V to ±20V dual supplies or +9V to +36V single supply, delivers rail-to-rail signal handling, features ±40V fault protection with supplies off, and exhibits 400Ω max on-resistance with ≤10Ω channel matching - enabling robust data acquisition in avionics and industrial control systems.
For engineers reviewing the MAX4534CSD+ datasheet, MAX4534CSD+ pinout, MAX4534CSD+ application, or MAX4534CSD+ equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternative parts with documented differences, and supply-chain support tailored for high-reliability embedded deployments.
Technical Context
The MAX4534CSD+ uses parallel N- and P-channel FETs per switch path to achieve low on-resistance and true rail-to-rail analog signal pass-through. Its dual-comparator fault-detection circuitry clamps COM output to V+ or V− within ~20ns when NO inputs exceed rails by 150mV, while maintaining high-impedance NO terminals during faults regardless of enable or address state.
Fault response is asymmetric: positive-fault recovery takes ~2.5µs, negative-fault recovery ~1.3µs, both dependent on COM load resistance and capacitance. The device requires no power-supply sequencing, remains fully functional across –40°C to +85°C (per E-grade), and supports TTL/CMOS logic inputs at +12V or ±15V supplies without level-shifting.
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 without external regulators. |
| On-Resistance (max) | 400Ω - ensures minimal signal attenuation and voltage drop in precision sensor or DAC output routing. |
| On-Resistance Match | ≤10Ω between channels - critical for matched gain paths in differential or multi-channel data acquisition. |
| Fault Protection | ±40V with supplies off, ±25V with ±15V supplies on - protects downstream circuitry from transients in redundant backup systems. |
| Fault Response Time | 20ns typical - limits fault energy injection into sensitive analog front-ends during fast overvoltage events. |
| Rail-to-Rail Signal Handling | Full V− to V+ range - enables direct interface with bipolar sensors, op-amp outputs, and legacy industrial signal levels. |
| Logic Compatibility | TTL/CMOS thresholds at +12V or ±15V - eliminates need for external logic translators in mixed-signal control boards. |
Pinout & Package
MAX4534CSD+ is housed in a 14-pin TSSOP package (JEDEC MO-153, 4.4mm × 5mm body, 0.65mm pitch) with exposed pad for thermal enhancement. 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.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A0) | Address Bit 0 | Selects one of four input channels (NO1–NO4) when EN = high; LSB of 2-bit binary address. |
| 2 (EN) | Enable Input | Active-high digital control: all switches open when EN = low; all channels disabled with supplies off. |
| 3 (V−) | Negative Supply Rail | Bias source for internal P-FET gates and fault comparators; must be connected for dual-supply operation. |
| 4 (NO1) | Fault-Protected Analog Input 1 | Input channel 1 with ±40V fault tolerance; passes signals to COM only when selected and enabled. |
| 5 (NO2) | Fault-Protected Analog Input 2 | Input channel 2 with identical fault protection and signal-handling capability as NO1. |
| 7 (COM) | Analog Output Common | Single-ended output node; not fault-protected - must remain within V− to V+ during normal operation. |
| 11 (NO3) | Fault-Protected Analog Input 3 | Third fault-tolerant input; shares same electrical specs and protection behavior as NO1/NO2. |
| 10 (NO4) | Fault-Protected Analog Input 4 | Fourth fault-tolerant input; completes 4-to-1 multiplexing function with full rail-to-rail capability. |
| 12 (V+) | Positive Supply Rail | Bias source for internal N-FET gates and logic core; sets upper limit of analog signal range. |
| 13 (GND) | Digital Ground Reference | Reference for logic inputs (A0, A1, EN); tied to substrate but isolated from analog signal paths. |
| 14 (A1) | Address Bit 1 | MSB of 2-bit address; combined with A0, selects NO1 (00), NO2 (01), NO3 (10), or NO4 (11). |
Key Features
| Feature | Design Value |
|---|---|
| No power-supply sequencing required | Enables safe hot-insertion and unregulated supply ramp-up in modular industrial systems without risk of latch-up. |
| All channels off with power off | Prevents back-driving or unintended signal coupling during power loss - essential for fail-safe redundant architectures. |
| Output clamped to appropriate supply during fault | COM is actively pulled to V+ or V− during overvoltage, limiting downstream voltage excursion to safe rail levels. |
| 1.0kΩ typical output clamp resistance | Provides controlled current limiting (±10mA max) during fault, preventing damage to connected loads or ADC inputs. |
| Rail-to-rail signal handling | Supports full-range analog signals from –15V to +15V (or 0V to +36V), eliminating level-shifting in legacy test equipment interfaces. |
Applications
| Avionics Signal Routing | Industrial Data Acquisition |
|---|---|
|
Use Scenario: Multiplexing multiple sensor outputs (e.g., pressure, temperature, inertial) onto a shared ADC channel in flight control units. IC Role / Device Role / Timing Role: Fault-protected 4-to-1 analog switch that routes conditioned sensor voltages while surviving lightning-induced transients on aircraft wiring harnesses. Use Value: ±40V fault tolerance with supplies off prevents latch-up during brownout conditions; 20ns fault response minimizes transient energy coupled into safety-critical measurement paths. |
Use Scenario: Selecting among four isolated 4–20mA transmitter outputs in a programmable logic controller (PLC) analog input module. IC Role / Device Role / Timing Role: High-voltage analog multiplexer interfacing field-side current loops to internal signal conditioning and digitization circuitry. Use Value: ±25V fault protection with ±15V supplies guards against wiring errors and ground-loop surges; rail-to-rail operation preserves full 4–20mA dynamic range without clipping. |
| Redundant Backup Systems | Process Control Signal Switching |
|
Use Scenario: Automatic switchover between primary and backup analog sensor feeds in nuclear plant monitoring systems. IC Role / Device Role / Timing Role: Fail-safe 4-to-1 selector ensuring continuity of critical process variables during hardware fault detection and isolation. Use Value: All channels automatically disable with power loss, preventing false readings; break-before-make timing avoids momentary shorts between redundant sources. |
Use Scenario: Dynamic reconfiguration of analog I/O channels in distributed control system (DCS) field interface cards. IC Role / Device Role / Timing Role: Programmable analog signal router enabling flexible channel assignment without physical rewiring. Use Value: TTL/CMOS-compatible logic inputs simplify integration with FPGA-based control logic; 400Ω on-resistance maintains accuracy in 12-bit+ measurement systems. |
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 functionality and pinout, but rated for –40°C to +85°C industrial temperature range vs. 0°C to +70°C for MAX4534CSD+. | Suitable for extended-temperature deployments (e.g., outdoor process enclosures, engine bay electronics). | Select MAX4534ESD+ when operating ambient exceeds +70°C or requires full industrial temp qualification. |
| ADG5412BRUZ | Quad SPST switch (not 4-to-1 mux); ±40V fault protection; 12Ω typical on-resistance; requires external logic decoding for mux behavior. | Used where independent channel control is preferred over address-decoded selection; lower on-resistance benefits low-level signal integrity. | Choose ADG5412BRUZ if discrete switch control, lower RON, or SPI-configurable variants (e.g., ADG5412BRUZ-REEL7) are required. |
Compared with MAX4534ESD+, the MAX4534CSD+ offers lower cost and simpler logistics for commercial-temperature applications, while ADG5412BRUZ trades integrated address decoding for greater flexibility and lower conduction loss - making it preferable in precision, non-muxed switching roles.
Availability
MAX4534CSD+ is available at Aetrix Electronics and suitable for avionics signal routing, industrial data acquisition, redundant backup systems, and process control signal switching requiring stable component supply and long-term lifecycle assurance.
Supply support for MAX4534CSD+ 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 high-performance analog, mixed-signal, and power-management ICs for demanding industrial, automotive, and communications applications.
The MAX4534CSD+ belongs to Maxim's fault-protected analog switch family, engineered specifically for high-voltage signal routing in safety-critical systems where transient immunity, rail-to-rail operation, and fail-safe behavior are mandatory.
FAQ
What is the maximum fault voltage the MAX4534CSD+ can withstand with power supplies disconnected?
The MAX4534CSD+ sustains ±40V on its NO_ pins (NO1–NO4) with V+ = V− = 0V. This is specified in Absolute Maximum Ratings and confirmed in Electrical Characteristics tables under "NO_ Overvoltage with Switch Power Off." During this condition, NO_ terminals become virtual open circuits, isolating downstream circuitry. The MAX4534CSD+ remains undamaged and resumes normal operation once supplies are restored and fault removed.
Does the MAX4534CSD+ require external pull-up or pull-down resistors on its address or enable pins?
No. The MAX4534CSD+ features TTL/CMOS-compatible logic inputs with guaranteed thresholds: VA_L ≤ 0.8V and VA_H ≥ 2.4V at +12V or ±15V supplies. Its input leakage is ≤±1µA, so direct connection to microcontroller GPIO or FPGA outputs is sufficient. External resistors are unnecessary unless noise immunity in high-EMI environments demands added hysteresis - which is not specified or required for standard operation of the MAX4534CSD+.
Can the MAX4534CSD+ operate with asymmetrical dual supplies, such as +12V and –5V?
Yes. The MAX4534CSD+ supports asymmetrical dual supplies as long as V+ − V− ≤ 44V and each rail stays within absolute maximum limits (V+ ≤ +44V, V− ≥ −44V). For example, +12V and –5V yields 17V total swing - well within spec. However, fault protection thresholds scale with actual rails: ±25V fault tolerance applies only when |V+| and |V−| are both ≥15V; at +12V/–5V, the safe NO_ range contracts and must be verified per the NO_ Input Voltage section of the MAX4534CSD+ datasheet.
Is the COM pin of the MAX4534CSD+ fault-protected?
No. The COM pin of the MAX4534CSD+ is explicitly not fault-protected. As stated in the Detailed Description and Absolute Maximum Ratings, applying voltages beyond V− or V+ to COM risks damaging internal ESD diodes. The device relies on external circuitry (e.g., series resistors, clamping diodes) to limit COM voltage to the supply rails. This limitation is fundamental to the MAX4534CSD+ architecture and applies across all operating conditions - including power-off states.
What is the typical on-resistance variation of the MAX4534CSD+ over temperature and signal voltage?
The MAX4534CSD+ exhibits ≤400Ω max on-resistance across –40°C to +85°C and ±10V signal range, with typical values near 275Ω at +25°C. Graphs in the datasheet (toc01–toc04) show RON increases modestly at temperature extremes and near supply rails - e.g., ~350Ω at +85°C and VCOM = ±10V. Channel-to-channel match remains ≤10Ω across temperature, ensuring consistent gain tracking in multi-channel acquisition systems using the MAX4534CSD+.
MAX4534CSD+ 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:
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MAX4534CSD+ FAQ
1.How can I place an order for MAX4534CSD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4534CSD+ 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 MAX4534CSD+ reliable?
The price and inventory of MAX4534CSD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4534CSD+ is usually 5 days.
3.What payment methods are accepted for MAX4534CSD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4534CSD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4534CSD+?
MAX4534CSD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4534CSD+ 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 MAX4534CSD+?
For technical support, including MAX4534CSD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4534CSD+ requirements.
6.How does Aetrix verify that MAX4534CSD+ is sourced from the original manufacturer or authorized distributors?
All MAX4534CSD+ 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 MAX4534CSD+ meets industry standards.
7.What is the process for return or replacement of MAX4534CSD+?
All MAX4534CSD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4534CSD+, 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 MAX4534CSD+ part is unused and in its original packaging.
Return procedure for MAX4534CSD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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