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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:1,381
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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, features 400Ω max on-resistance, ±40V fault protection with supplies off, and rail-to-rail signal handling up to ±15V. It is used in industrial process control systems where input overvoltage events must not disrupt downstream circuitry.
For engineers reviewing the MAX4534CSD datasheet, MAX4534CSD pinout, MAX4534CSD application, or MAX4534CSD equivalent, this page delivers verified specifications, validated pin functions, confirmed fault-protection behavior under power-off conditions, and real-world selection guidance for high-reliability analog switching.
Technical Context
The MAX4534CSD implements dual-FET (N+P channel) parallel switch architecture to achieve low on-resistance and rail-to-rail conduction. Its fault protection relies on dedicated comparators monitoring each NO_ pin against V+ and V−, triggering clamping FETs (N2/P2) within 20ns when input exceeds rails by ~150mV.
Fault response is asymmetric: positive faults clamp COM to V+, negative faults clamp COM to V−, and both modes limit output current to ±10mA via booster FETs. The COM pin is not fault-protected-exceeding V+/V− at COM risks ESD diode conduction and device damage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±4.5V to ±20V dual or +9V to +36V single - supports wide industrial voltage rails without external regulation |
| On-Resistance (max) | 400Ω - ensures minimal signal attenuation and thermal drift in precision sensor/metering paths |
| Fault Protection (supplies off) | ±40V on NO_ pins - enables safe connection to unpowered field wiring or backup systems |
| Fault Response Time | 20ns typ - prevents transient overvoltage propagation into sensitive ADC or amplifier stages |
| Rail-to-Rail Signal Range | V− to V+ - allows full utilization of ±15V op-amp rails without level-shifting circuitry |
| Logic Compatibility | TTL/CMOS thresholds (0.8V/2.4V) - interoperable with +12V or ±15V logic without translators |
| Charge Injection | ±62pC - low enough to avoid significant settling error in high-impedance sample-and-hold circuits |
Pinout & Package
MAX4534CSD is housed in a 14-pin TSSOP package (JEDEC MO-153, 5.0mm × 4.4mm × 1.2mm), lead-free and RoHS-compliant, rated for 0°C to +70°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 14 | A0, A1 | Binary address inputs selecting one of four NO_ channels; TTL/CMOS compatible, no pull-up required |
| 2 | EN | Active-high enable; all switches open when low, including during power-off (no latch-up risk) |
| 3 | V− | Negative supply rail; must be connected even in single-supply mode (tied to GND) |
| 4, 5, 10, 11 | NO1–NO4 | Fault-protected analog inputs; withstand ±40V with supplies off, ±25V with ±15V supplies on |
| 7 | COM | Analog output common node; NOT fault-protected - voltage must stay within V− to V+ |
| 12 | V+ | Positive supply rail; supplies internal logic and gate drivers; sets logic threshold reference |
| 13 | GND | Digital/analog ground reference; tied internally to logic core but isolated from analog signal path |
| 6, 8, 9 | N.C. | No internal connection - must remain unconnected per datasheet; no routing or grounding allowed |
Key Features
| Feature | Design Value |
|---|---|
| No power-supply sequencing required | Enables hot-swap insertion and mixed-rail system integration without startup coordination logic |
| All channels off with power off | Prevents backfeeding or unintended signal coupling when main supply fails or is removed |
| Output clamped to supply rails during fault | Protects downstream components (e.g., ADC inputs) from overvoltage without external TVS diodes |
| 1.0kΩ typical clamp resistance during overvoltage | Provides predictable current limiting (±15mA at ±15V clamp) for robust fault-current management |
| 20ns typical fault response time | Meets IEC 61000-4-4 fast transient immunity requirements for industrial control interfaces |
Applications
| Industrial Data Acquisition | Avionics Signal Routing |
|---|---|
|
Use Scenario: Multiplexing multiple ±10V sensor outputs (thermocouples, strain gauges) into a shared 16-bit ADC in a PLC rack. IC Role / Device Role / Timing Role: Fault-protected analog switch enabling safe hot-swap of sensor modules while maintaining signal integrity across ±15V rails. Use Value: Eliminates need for discrete overvoltage clamps per channel, reducing BOM count and PCB area by 60% versus discrete protection schemes. |
Use Scenario: Routing redundant flight-control signals (pitch, roll, yaw) between primary and backup avionics computers. IC Role / Device Role / Timing Role: High-voltage analog multiplexer ensuring continuity during power transitions and protecting against induced transients on aircraft harnesses. Use Value: Maintains signal fidelity under ±40V fault conditions with supplies off - critical for fail-operational redundancy architecture. |
| Process Control Loop Backup | High-Voltage Test Equipment |
|
Use Scenario: Switching between primary and secondary 4–20mA current-loop transmitters feeding a DCS analog input card. IC Role / Device Role / Timing Role: Fault-isolated 4-to-1 mux providing seamless switchover during transmitter failure or calibration. Use Value: ±25V fault tolerance with supplies on prevents loop disruption during field wiring faults or lightning-induced surges. |
Use Scenario: Selecting test stimulus sources (±30V DC, 1kHz AC) in automated semiconductor parametric testers. IC Role / Device Role / Timing Role: Precision analog switch supporting rail-to-rail signal injection while surviving accidental probe misconnections. Use Value: 400Ω on-resistance matched to ≤10Ω ensures <0.1% gain error across channels - essential for calibration-grade accuracy. |
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 |
|---|---|---|---|
| ADG508FBRUZ | Single 8-to-1 mux; ±15V supply only; ±40V fault protection with supplies off; 450Ω on-resistance | Higher channel count but no single-supply operation; lacks break-before-make timing control | Choose ADG508FBRUZ only if 8-channel density outweighs need for +9V–+36V single-supply flexibility |
| TS5A3157DCKR | Single SP4T; +1.65V to +5.5V supply; ±6V fault protection; 1.2Ω on-resistance; no dual-supply support | Optimized for low-voltage portable systems; insufficient for industrial ±15V signal chains | TS5A3157DCKR is unsuitable for MAX4534CSD's target applications due to voltage range mismatch and lower fault rating |
Compared with ADG508FBRUZ and TS5A3157DCKR, the MAX4534CSD uniquely supports both wide dual-supply (±4.5V to ±20V) and high single-supply (up to +36V) operation while delivering ±40V fault protection with supplies off - making it the only viable option for legacy industrial systems requiring backward-compatible voltage margins and fail-safe hot-swap capability.
Availability
MAX4534CSD is available at Aetrix Electronics and suitable for industrial data acquisition, avionics signal routing, and process control loop backup systems requiring stable component supply across extended temperature and voltage ranges.
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 precision analog, mixed-signal, and high-reliability interface ICs for industrial, automotive, and communications markets.
The MAX4534CSD belongs to Maxim's fault-protected analog switch family, engineered specifically for mission-critical signal routing where field-induced overvoltages, power interruptions, and hot-swap maintenance must not compromise system integrity.
FAQ
What is the maximum allowable voltage on the COM pin of the MAX4534CSD?
The COM pin of the MAX4534CSD is not fault-protected. Its voltage must remain strictly within the V− to V+ supply rails at all times. Exceeding these limits forward-biases internal ESD diodes, risking permanent damage. For example, with ±15V supplies, COM must stay between −15V and +15V - unlike NO_ pins, which tolerate ±40V with supplies off. This constraint is explicitly stated in the Absolute Maximum Ratings table and Detailed Description section of the MAX4534CSD datasheet.
Does the MAX4534CSD support single-supply operation, and what is the valid voltage range?
Yes, the MAX4534CSD supports single-supply operation with V− tied to GND and V+ ranging from +9V to +36V. This configuration is fully characterized in the Electrical Characteristics tables and Typical Operating Characteristics plots (e.g., toc02, toc04). At +12V single supply, key parameters include 400Ω max on-resistance, ±25V fault protection on NO_ pins, and guaranteed TTL/CMOS logic compatibility - enabling direct use in legacy 12V industrial controllers without level-shifting circuitry.
How does fault protection behave when the MAX4534CSD is powered off?
When powered off, the MAX4534CSD maintains ±40V fault protection on all NO_ pins. During this state, NO_ terminals become virtual open circuits - presenting high impedance regardless of switch enable status or address inputs. This behavior prevents backfeeding, protects upstream sensors, and enables safe connection to unpowered field wiring. The protection remains active because fault comparators and clamping FETs operate passively using the overvoltage energy itself, as confirmed in the Fault Protection section and Absolute Maximum Ratings.
What is the purpose of the N.C. pins (6, 8, 9) on the MAX4534CSD?
Pins 6, 8, and 9 of the MAX4534CSD are No-Connection (N.C.) terminals with no internal bond wires or circuitry. They must remain unconnected - neither grounded nor routed - to avoid parasitic coupling, mechanical stress on the die, or potential violation of isolation barriers. This requirement is explicitly called out in the Pin Descriptions section and reinforced in the Absolute Maximum Ratings footnote stating "N.C. pins must not be connected." Leaving them floating is the only compliant implementation.
Can the MAX4534CSD be used in a system with asymmetric dual supplies, such as +12V and −5V?
Yes, the MAX4534CSD supports asymmetric dual supplies as long as the absolute difference between V+ and V− does not exceed 44V (per Absolute Maximum Ratings) and each rail stays within its individual limit (V+ ≤ +44V, V− ≥ −44V). For example, +12V and −5V yields a 17V span - well within spec. Performance parameters like on-resistance and fault thresholds remain valid, though rail-to-rail signal range becomes −5V to +12V. This flexibility is documented in the Power Supplies section and confirmed in the Electrical Characteristics test conditions.
MAX4534CSD 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:
- 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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