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Analog Devices Inc./Maxim Integrated MAX4712EUE
- Part No.:
- MAX4712EUE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4712EUE.pdf
- Description:
- IC SW SPST-NOX4 25OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,135
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Product details
Overview
MAX4712EUE from Maxim Integrated is a fault-protected, quad SPST analog switch with normally open (NO) configuration, designed for signal routing in harsh or unpredictable voltage environments. It delivers 25Ω max on-resistance at +25°C, <125ns turn-on time, and ±12V fault protection on NO pins with power off - enabling robust operation in battery-powered test equipment and industrial control I/O modules.
For engineers reviewing the MAX4712EUE datasheet, MAX4712EUE pinout, MAX4712EUE application, or MAX4712EUE equivalent, key selection criteria include fault-protection voltage limits under single/dual supply, on-resistance match across channels (≤1Ω max), rail-to-rail signal handling up to ±5.5V, and compatibility with TTL/CMOS logic inputs across +2.7V to +11V operation.
Technical Context
The MAX4712EUE integrates dual-FET (N+P channel) parallel switch architecture per channel to achieve low RON and flat on-resistance vs. signal voltage. Its fault-protection circuitry uses independent high- and low-fault comparators that disable the main switch FETs and activate clamp FETs when NO input exceeds V+ or V− by ~150mV.
During fault conditions, COM output is clamped to the appropriate supply rail (V+ for positive overvoltage, V− for negative), sourcing/sinking up to ±15mA. The device remains fault-protected with zero supply - NO/NC pins tolerate ±12V regardless of V+/V− state - while COM pins lack fault protection and must remain within V− to V+.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Quad SPST, normally open (NO) configuration - all four switches default open until enabled by logic high on INx. |
| On-Resistance (RON) | 25Ω max at +25°C, V± = ±4.5V - ensures minimal signal attenuation and distortion in precision analog paths. |
| RON Match | 1Ω max between channels - critical for matched gain/phase in multi-channel instrumentation or differential switching. |
| Fault Protection | ±12V on NO pins with power off; ±7V with ±5V supplies; +12V/−7V with +5V supply - protects downstream circuitry without external components. |
| Supply Range | +2.7V to +11V single supply (V− = GND) or ±2.7V to ±5.5V dual supply - supports wide-range battery and industrial rail operation. |
| Logic Compatibility | TTL/CMOS-compatible inputs: VIH = +2.4V, VIL = +0.8V at +4.5V–+11V; VIH = +2.0V, VIL = +0.6V at +2.7V - eliminates level-shifting in mixed-voltage systems. |
| Turn-On/Off Time | tON < 125ns, tOFF < 80ns (V± = ±4.5V) - enables fast multiplexing in data acquisition and communication switching applications. |
Pinout & Package
MAX4712EUE is housed in a 16-pin TSSOP package (5.0mm × 4.4mm, 0.65mm pitch) rated for −40°C to +85°C operation.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Logic control inputs; fault-protected to (V− + 12V); drive internal switch gates and fault comparators. |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals; not fault-protected - must stay within V− to V+ to avoid ESD diode conduction. |
| 3, 6, 11, 14 | NO1–NO4 | Fault-protected normally open analog inputs; withstand ±12V with power off; clamp to V+ or V− during fault. |
| 4 | V− | Negative supply pin; connect to GND for single-supply operation; sets lower fault threshold reference. |
| 5 | GND | Ground reference for logic and internal bias; separate from power return path in dual-supply configurations. |
| 12 | N.C. | No internal connection - must be left floating; no routing or stitching required. |
| 13 | V+ | Positive supply pin; defines upper fault threshold and powers clamp FETs during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Fault-protected NO inputs | Withstands ±12V with power off and ±7V with ±5V dual supply - eliminates need for external TVS or series resistors in field-connected I/O. |
| Rail-to-rail signal handling | Passes signals from V− to V+ without distortion or clipping - supports full dynamic range in ±5V op-amp circuits and sensor interfaces. |
| 1Ω max RON match | Ensures amplitude and timing consistency across four channels - essential for phase-matched signal routing in test instrumentation. |
| Clamp-based fault recovery | Outputs clamp to V+ or V− during overvoltage and recover in ≤700ns after fault removal - maintains system stability without latch-up. |
| Pin-compatible with MAX392 | Direct drop-in replacement for industry-standard non-fault-protected quad SPST switch - simplifies upgrade of legacy designs. |
Applications
| Battery-Operated Test Equipment | Industrial Process I/O Modules |
|---|---|
|
Use Scenario: Portable multimeter front-end switching between voltage, current, and resistance measurement paths with exposed probe inputs. IC Role / Device Role / Timing Role: Fault-protected analog switch isolating DMM ASIC from user-connected probes subject to accidental overvoltage or ESD. Use Value: Prevents damage from ±12V transients during probing without adding external protection, preserving accuracy and calibration integrity. |
Use Scenario: PLC analog input card routing multiple 4–20mA or ±10V sensor signals to ADC with field wiring exposed to ground faults. IC Role / Device Role / Timing Role: Quad SPST switch enabling configurable channel assignment and isolation of faulty sensor loops. Use Value: Sustains operation during wiring faults by clamping NO inputs to rails and preventing backfeed into shared COM bus. |
| Avionics Signal Redundancy | Redundant Backup Systems |
|
Use Scenario: Dual-channel flight control sensor interface where primary and backup signals are switched based on health monitoring. IC Role / Device Role / Timing Role: Fault-tolerant signal selector ensuring continuity even if one channel experiences overvoltage due to lightning-induced transients. Use Value: Maintains safe signal routing during ±7V faults (typical in MIL-STD-704 avionics rails) without interrupting control loop timing. |
Use Scenario: Medical infusion pump with dual pressure sensors feeding safety-critical controller; automatic failover on sensor fault detection. IC Role / Device Role / Timing Role: Normally open switch enabling primary sensor path by default, and activating backup path only upon fault confirmation. Use Value: Guarantees no unintended signal coupling between redundant paths due to sub-1Ω RON match and break-before-make behavior. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX392ESE | No fault protection; 120Ω typical RON; same 16-pin SO package and pinout. | Lacks ±12V transient tolerance - requires external protection for field-connected nodes. | Select when cost sensitivity outweighs fault resilience and signal path voltages remain strictly within rails. |
| ADG1412BRUZ | 44Ω max RON; ±15V fault protection on all pins; 16-pin TSSOP but different pin mapping (e.g., V+ on Pin 1). | Higher RON and non-pin-compatible layout - demands PCB redesign but offers broader fault coverage including COM pins. | Choose when COM-side fault exposure exists and board revision is acceptable for enhanced protection scope. |
Compared with MAX392ESE and ADG1412BRUZ, the MAX4712EUE uniquely balances low RON, pin compatibility with legacy switches, and comprehensive NO-pin fault protection - making it optimal for upgrading existing designs without layout changes while adding field-wiring robustness.
Availability
MAX4712EUE is available at Aetrix Electronics and suitable for battery-operated test equipment, industrial process I/O modules, avionics signal redundancy, and redundant backup systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4712EUE 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 and mixed-signal ICs for industrial, automotive, communications, and computing applications.
The MAX4712EUE belongs to Maxim's fault-protected analog switch product line, engineered to replace standard CMOS switches in environments where signal lines may experience overvoltage, ESD, or incorrect wiring - delivering reliability without sacrificing speed or on-resistance.
FAQ
What is the maximum fault voltage the MAX4712EUE can withstand on its NO pins with no power applied?
The MAX4712EUE guarantees ±12V fault protection on NO pins even when V+ and V− are unpowered. This capability allows the device to safely absorb transients from disconnected or miswired field connections without drawing excessive current or sustaining damage - a key advantage over non-fault-protected alternatives like the MAX392. This rating is explicitly confirmed in the Absolute Maximum Ratings table and Electrical Characteristics section for "Fault-Protected Analog Signal Range (Power off)".
Does the MAX4712EUE support rail-to-rail analog signal switching?
Yes, the MAX4712EUE supports true rail-to-rail signal handling: analog signals from V− to V+ pass through the switch with minimal distortion or attenuation. This is enabled by its complementary N/P-FET topology and is verified across dual-supply (±2.7V to ±5.5V) and single-supply (+2.7V to +11V) configurations. The datasheet specifies "Fault-Free Analog Signal Range" as V− to V+ under powered conditions, confirming full rail utilization for precision applications such as sensor interfacing and audio routing.
How does the fault protection mechanism affect the COM pin during an overvoltage event on a NO pin?
During a NO-pin overvoltage fault, the MAX4712EUE clamps the COM output to the corresponding supply rail (V+ for positive faults, V− for negative faults) via internal clamp FETs. This prevents the COM node from exceeding safe voltage levels and protects downstream circuitry. However, the COM pin itself is *not* fault-protected - if overvoltage is applied directly to COM, internal ESD diodes conduct, risking damage. Therefore, fault protection applies only to NO/NC pins, and COM must remain within V− to V+ at all times.
Is the MAX4712EUE pin-compatible with the MAX392 series?
Yes, the MAX4712EUE features identical pinout and footprint to the MAX392 family (e.g., MAX392ESE), including matching IN, COM, NO, V+, V−, GND, and N.C. assignments. This enables direct replacement in existing PCB layouts without redesign. However, caution is advised: while pinout matches, the MAX4712EUE adds fault protection only on NO/NC pins - COM remains unprotected, and logic thresholds differ slightly at low supply voltages. System-level validation is recommended after substitution.
What is the typical on-resistance flatness of the MAX4712EUE over its signal range?
The MAX4712EUE guarantees ≤5Ω on-resistance flatness (RFLAT) across its specified analog signal range when operated with ±4.5V supplies. This parameter quantifies variation in RON versus input voltage - critical for minimizing harmonic distortion and maintaining signal fidelity in AC-coupled or wide-dynamic-range applications. Flatness is measured at +25°C with VNO/VNC swept from ±3.5V and IOUT = 10mA, and remains stable across temperature per typical operating curves (toc02, toc04).
MAX4712EUE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 25Ohm
- Channel-to-Channel Matching (ΔRon):
- 200mOhm
- Voltage - Supply, Single (V+):
- 2.7V ~ 11V
- Voltage - Supply, Dual (V±):
- ±2.7V ~ 5.5V
- Switch Time (Ton, Toff) (Max):
- 125ns, 80ns
- -3db Bandwidth:
- -
- Charge Injection:
- 25pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -87dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
MAX4712EUE FAQ
1.How can I place an order for MAX4712EUE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4712EUE 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 MAX4712EUE reliable?
The price and inventory of MAX4712EUE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4712EUE is usually 5 days.
3.What payment methods are accepted for MAX4712EUE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4712EUE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4712EUE?
MAX4712EUE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4712EUE 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 MAX4712EUE?
For technical support, including MAX4712EUE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4712EUE requirements.
6.How does Aetrix verify that MAX4712EUE is sourced from the original manufacturer or authorized distributors?
All MAX4712EUE 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 MAX4712EUE meets industry standards.
7.What is the process for return or replacement of MAX4712EUE?
All MAX4712EUE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4712EUE, 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 MAX4712EUE part is unused and in its original packaging.
Return procedure for MAX4712EUE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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