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Analog Devices Inc./Maxim Integrated MAX4712ESE
- Part No.:
- MAX4712ESE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4712ESE.pdf
- Description:
- IC SWITCH SPST-NOX4 25OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,384
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Product details
Overview
MAX4712ESE from Maxim Integrated is a fault-protected, quad SPST analog switch with normally open (NO) configuration, designed for signal routing in battery-operated and industrial systems. It delivers 25Ω max on-resistance at +25°C, ±12V fault protection with power off, and sub-125ns turn-on time under dual ±5V supplies - enabling robust signal switching in avionics and redundant backup systems.
For engineers reviewing the MAX4712ESE datasheet, MAX4712ESE pinout, MAX4712ESE application, or MAX4712ESE equivalent, this page provides verified specifications, fault-protection behavior under single/dual supply conditions, rail-to-rail signal handling limits, and real-world design implications of its clamp-FET architecture and NO-only topology.
Technical Context
The MAX4712ESE implements parallel N- and P-channel FETs per channel to achieve low RON and flat on-resistance across the signal range. Its dual-comparator fault-sensing circuit monitors NO_ pins against V+ and V−, triggering clamp-FET activation (P2 for positive faults, N2 for negative faults) when input exceeds rails by ~150mV.
Unlike standard analog switches, it maintains fault protection with zero supply voltage (±12V absolute max), clamps COM_ to the appropriate rail during faults, and ensures all switches remain off when unpowered - critical for system-level safety in test equipment and process control interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Quad SPST, normally open (NO) configuration - four independent high-side signal paths. |
| On-Resistance (RON) | 25Ω max at +25°C, +4.5V/–4.5V supplies - ensures minimal signal attenuation in precision data-acquisition paths. |
| Fault Protection | ±12V on NO_/NC_ pins with power off; ±7V with ±5V dual supplies - protects downstream circuitry without external clamping diodes. |
| Supply Range | +2.7V to +11V single supply or ±2.7V to ±5.5V dual supply - supports wide-input battery and industrial rail designs. |
| Switching Speed | tON < 125ns, tOFF < 80ns (dual ±5V) - enables fast multiplexing in high-throughput communication and test systems. |
| Logic Compatibility | TTL/CMOS inputs: VIH = +2.4V, VIL = +0.8V (±4.5V to ±5.5V or +4.5V to +11V supplies) - interoperable with legacy and modern digital controllers. |
| Leakage Current | < ±10nA COM_/NO_ off-leakage at +25°C - preserves signal integrity in high-impedance sensor front-ends. |
Pinout & Package
MAX4712ESE is housed in a 16-pin narrow SO package (SOIC-16, 150 mil width), with industry-standard footprint and thermal profile suitable for automated assembly and industrial PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 (Pins 1, 8, 9, 16) | Digital control inputs | Fault-protected logic inputs; tolerate up to (V− + 12V); drive internal switch gates and fault comparators. |
| COM1–COM4 (Pins 2, 7, 10, 15) | Analog common terminals | Non-fault-protected output nodes; must remain within V− to V+ to avoid ESD diode conduction and damage. |
| NO1–NO4 (Pins 3, 6, 11, 14) | Analog normally open inputs | Fault-protected signal inputs; clamp to V+ or V− during overvoltage; high-impedance when faulted regardless of IN state. |
| V+ (Pin 13) | Positive supply rail | Accepts +2.7V to +11V (single) or +4.5V to +5.5V (dual); powers clamp-FETs and logic core. |
| V− (Pin 4) | Negative supply rail | Accepts –2.7V to –5.5V (dual) or GND (single); reference for negative fault detection and clamp sink path. |
| GND (Pin 5) | Ground reference | System ground return; required for single-supply operation and logic threshold referencing. |
| N.C. (Pin 12) | No connection | Internally unconnected; must be left floating or tied to GND per layout best practices. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Passes signals from V− to V+ with <1Ω match between channels - eliminates level-shifting in ±5V or 0–5V data paths. |
| Fault-clamped COM_ output | During NO_ overvoltage, COM_ is actively clamped to V+ or V− (not floating) - prevents latch-up in connected ADCs or op-amps. |
| Power-off fault protection | Maintains ±12V fault tolerance on NO_ pins even with V+/V− = 0 - essential for hot-swap and maintenance-mode safety. |
| Pin-compatible replacement | Matches pinout of MAX391/MAX392/MAX393 - allows drop-in upgrade to fault-protected switching without PCB redesign. |
| Low charge injection | ±1pC typical - minimizes voltage glitch on high-Z nodes (e.g., sample-and-hold capacitors), preserving measurement accuracy. |
Applications
| Avionics Signal Routing | Battery-Operated Test Equipment |
|---|---|
Use Scenario: Multiplexing sensor inputs (e.g., temperature, pressure) across shared ADC channels in flight control units. IC Role / Device Role / Timing Role: Quad NO switch isolating analog sources; enables sequential sampling with guaranteed fault containment during EMI transients. Use Value: ±12V fault protection prevents false readings or latch-up when sensors experience lightning-induced surges or wiring faults. |
Use Scenario: Portable multimeter front-end switching between voltage, current, and resistance measurement paths. IC Role / Device Role / Timing Role: Low-RON, rail-to-rail analog switch routing DUT signals to conditioning circuits; operates down to +2.7V supply. Use Value: 25Ω RON and <±10nA leakage ensure measurement accuracy across 4½-digit resolution without calibration drift. |
| Redundant Backup Systems | Industrial Process Control I/O |
Use Scenario: Automatic failover between primary and backup signal chains in safety-critical PLC modules. IC Role / Device Role / Timing Role: Fault-protected NO switch enabling seamless switchover; all channels default OFF when unpowered. Use Value: Power-off fault tolerance ensures backup path remains isolated and undamaged during main-system fault events. |
Use Scenario: Isolating field transmitters (4–20mA, thermocouple) from controller ADCs in harsh factory environments. IC Role / Device Role / Timing Role: Analog interface switch with ±7V fault protection under ±5V supplies - withstands induced ground-loop voltages. Use Value: Clamp-FET action limits COM_ excursion to safe rail levels, protecting sensitive controller inputs from transient overvoltage damage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX392ESE | No fault protection; 35Ω RON; same SO-16 pinout and NO configuration. | Lacks ±12V fault tolerance and rail-to-rail clamping - requires external protection for industrial/avionics use. | Select only if cost sensitivity outweighs fault safety requirements and external clamping is acceptable. |
| ADG1412BRUZ | 4-channel NO switch with ±15V fault protection; 1.8Ω RON; TSSOP-16 package. | Lower RON and higher fault margin, but not pin-compatible - requires PCB layout change. | Choose when ultra-low on-resistance and extended fault range justify redesign effort and higher BOM cost. |
Compared with MAX392ESE, MAX4712ESE adds critical fault resilience without layout changes; versus ADG1412BRUZ, it trades lower RON for proven pin compatibility and broader supply flexibility (+2.7V to +11V vs. +5V only).
Availability
MAX4712ESE is available at Aetrix Electronics and suitable for avionics signal routing, battery-operated test equipment, and industrial process control I/O requiring stable component supply across extended temperature ranges (–40°C to +85°C).
Supply support for MAX4712ESE 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 and mixed-signal ICs for demanding industrial, automotive, and communications applications.
The MAX4711/MAX4712/MAX4713 family was engineered specifically for fault-tolerant analog signal routing - prioritizing robustness, rail-to-rail operation, and seamless integration into safety-critical measurement and control systems.
FAQ
What is the maximum fault voltage the MAX4712ESE can withstand on its NO pins with no power applied?
The MAX4712ESE guarantees ±12V fault protection on NO_ pins even when V+ and V− are at 0V. This is explicitly specified in the Absolute Maximum Ratings table and confirmed in the Detailed Description section, where it states "The maximum fault voltage on the NC_ or NO_ pins is ±12V with power off." This capability ensures safe handling during system maintenance or hot-swap scenarios without risk of device damage.
Does the MAX4712ESE support single-supply operation, and what is the minimum valid supply voltage?
Yes, the MAX4712ESE supports single-supply operation with V− tied to GND. The minimum valid supply voltage is +2.7V, as stated in the Electrical Characteristics tables for +3V Single Supply mode. At +2.7V, it maintains functional switching with RON ≤ 100Ω and tON ≤ 600ns - making it suitable for low-voltage battery-powered instruments and portable diagnostics tools.
Why is the COM_ pin not fault-protected in the MAX4712ESE, and what design precautions are required?
The COM_ pin lacks internal fault protection because it connects directly to the analog signal path without comparator monitoring or clamp-FETs. As noted in the Pin Description and Detailed Description sections, exceeding V+ or V− on COM_ forward-biases internal ESD diodes, risking damage if current exceeds ±40mA. Designers must ensure COM_ signals stay within the supply rails - using external series resistors or voltage limiters if interfacing with potentially overvoltage sources.
How does the MAX4712ESE differ from the MAX4711ESE and MAX4713ESE in terms of switch configuration?
The MAX4712ESE contains four normally open (NO) switches, whereas the MAX4711ESE has four normally closed (NC) switches, and the MAX4713ESE integrates two NO and two NC switches. This distinction is defined in the General Description and Pin Configurations sections. The MAX4712ESE's NO-only topology ensures default-open signal paths - ideal for fail-safe isolation in safety-critical routing where unintended conduction must be avoided.
Is the MAX4712ESE pin-compatible with legacy analog switches, and which specific parts does it replace?
Yes, the MAX4712ESE features identical pinout to the industry-standard MAX391, MAX392, and MAX393 families, as confirmed in the Features list and Pin Compatibility section. This allows direct replacement in existing designs without PCB modification - upgrading fault resilience while preserving layout, bill-of-materials, and firmware logic for the control inputs (IN1–IN4).
MAX4712ESE 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-SOIC
MAX4712ESE FAQ
1.How can I place an order for MAX4712ESE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4712ESE 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 MAX4712ESE reliable?
The price and inventory of MAX4712ESE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4712ESE is usually 5 days.
3.What payment methods are accepted for MAX4712ESE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4712ESE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4712ESE?
MAX4712ESE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4712ESE 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 MAX4712ESE?
For technical support, including MAX4712ESE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4712ESE requirements.
6.How does Aetrix verify that MAX4712ESE is sourced from the original manufacturer or authorized distributors?
All MAX4712ESE 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 MAX4712ESE meets industry standards.
7.What is the process for return or replacement of MAX4712ESE?
All MAX4712ESE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4712ESE, 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 MAX4712ESE part is unused and in its original packaging.
Return procedure for MAX4712ESE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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