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Analog Devices Inc./Maxim Integrated MAX4712EPE
- Part No.:
- MAX4712EPE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4712EPE.pdf
- Description:
- IC SWITCH SPST-NOX4 25OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,929
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Product details
Overview
MAX4712EPE from Maxim Integrated is a fault-protected, quad SPST analog switch with normally open (NO) configuration, operating from single +2.7V to +11V or dual ±2.7V to ±5.5V supplies. 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 signal routing in battery-powered test equipment and industrial control systems where input overvoltage transients occur.
For engineers reviewing the MAX4712EPE datasheet, MAX4712EPE pinout, MAX4712EPE application, or MAX4712EPE equivalent, this device is selected for rail-to-rail analog switching with guaranteed on-resistance flatness, fault-clamped output behavior, and TTL/CMOS-compatible logic inputs across wide supply ranges.
Technical Context
The MAX4712EPE uses parallel N- and P-channel FETs per channel to achieve low RON and rail-to-rail signal handling. Two comparators continuously monitor NO pin voltage against V+ and V−; exceeding either rail by ~150mV triggers fault mode, turning off the main FETs and activating clamp FETs to limit COM output to the appropriate supply rail.
Fault response includes sub-200ns turn-on delay and 700ns recovery time under dual-supply conditions. The COM pins are not fault-protected and rely on internal ESD diodes - requiring external voltage limiting if driven beyond V+ or V−.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 25Ω max at +25°C, +4.5V/−4.5V supplies - ensures minimal signal attenuation in precision analog paths |
| On-Resistance Match | 1Ω max between channels - critical for matched gain or timing in multi-channel instrumentation |
| Turn-On Time (tON) | <125ns - supports high-speed multiplexing in data-acquisition and communication systems |
| Fault Protection Range | ±12V on NO pins with power off - enables safe hot-plug or sensor disconnect in field-deployed equipment |
| Supply Range | +2.7V to +11V (single) or ±2.7V to ±5.5V (dual) - accommodates Li-ion, 3.3V, 5V, and ±5V legacy systems |
| Logic Thresholds | VIL = +0.8V, VIH = +2.4V - guarantees interoperability with both TTL and CMOS controllers |
| Off-Isolation | −59dB at 1MHz - suppresses crosstalk between inactive channels in dense signal-routing PCBs |
Pinout & Package
MAX4712EPE is housed in a 16-pin Plastic DIP package (0.300" wide), rated for −40°C to +85°C operation. Pin assignments follow industry-standard layout compatible with MAX392.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Fault-protected digital control inputs; accept logic levels up to (V− + 12V) |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals - not fault-protected; must remain within V− to V+ |
| 3, 6, 11, 14 | NO1–NO4 | Fault-protected normally open analog inputs - tolerate ±12V faults with power off |
| 4 | V− | Negative supply rail; connect to GND for single-supply operation |
| 5 | GND | Ground reference for logic and analog sections |
| 12 | N.C. | No internal connection - leave unconnected |
| 13 | V+ | Positive supply rail; supports up to +11V or ±5.5V differential |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Passes analog signals from V− to V+ without clipping - essential for full-scale sensor interface |
| Fault-clamped COM output | During NO overvoltage, COM is actively clamped to V+ or V− - protects downstream ADCs or amplifiers |
| Power-off fault protection | NO pins withstand ±12V even with V+/V− unpowered - prevents latch-up during system power sequencing |
| Pin-compatible with MAX392 | Drop-in replacement for non-fault-protected switches - simplifies upgrade of legacy designs without PCB change |
| Low charge injection (25pC) | Minimizes voltage glitch on high-impedance nodes (e.g., sample-and-hold circuits) during switching |
Applications
| Battery-Operated Test Equipment | Industrial Signal Routing |
|---|---|
|
Use Scenario: Portable multimeter front-end switching between voltage, current, and resistance measurement paths. IC Role / Device Role / Timing Role: Quad SPST NO switch isolating sensor inputs and protecting ADC inputs from transient overvoltages during probe contact. Use Value: ±12V fault tolerance with power off allows safe probing of unknown circuits before system power-up. |
Use Scenario: PLC I/O module routing analog sensor outputs (4–20mA, thermocouple) to shared signal conditioning circuitry. IC Role / Device Role / Timing Role: Fault-protected analog multiplexer ensuring field wiring faults do not damage precision op-amps or reference buffers. Use Value: Output clamping to supply rails during NO overvoltage prevents latch-up in downstream instrumentation amplifiers. |
| Avionics Redundancy Switching | Redundant Backup Systems |
|
Use Scenario: Dual-channel air data computer selecting between primary and backup pitot-static sensors. IC Role / Device Role / Timing Role: High-reliability analog switch with fast tON/tOFF and guaranteed RON match for seamless channel switchover. Use Value: 1Ω max RON match ensures identical gain scaling between redundant signal paths - critical for flight-critical validation. |
Use Scenario: Medical infusion pump monitoring motor current and temperature sensors with fail-safe isolation. IC Role / Device Role / Timing Role: Fault-isolated analog switch preventing short-circuit propagation from faulty sensor wiring to main controller. Use Value: All switches automatically disable with power loss - eliminates unintended analog path conduction during brownout events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX392EPE | No fault protection; RON = 35Ω max; same pinout and package | Suitable only in benign environments with strict input voltage limits | Select when cost sensitivity outweighs need for overvoltage resilience |
| ADG1412BRUZ | 44V supply rating; 1.5Ω RON; requires external fault-detection circuitry | Higher voltage range but lacks integrated fault clamping and automatic shutdown | Choose for >±12V signal handling where external protection is acceptable |
Compared with MAX392EPE, MAX4712EPE adds ±12V fault tolerance and active output clamping without layout changes; versus ADG1412BRUZ, it provides fully integrated fault response at lower supply voltage range and higher RON, simplifying design for 5V/±5V systems.
Availability
MAX4712EPE is available at Aetrix Electronics and suitable for battery-operated test equipment, industrial signal routing, avionics redundancy switching, and redundant backup systems requiring stable component supply across extended temperature ranges.
Supply support for MAX4712EPE 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 MAX4712EPE belongs to Maxim's fault-protected analog switch product line, engineered specifically for systems where field-repairable connections, sensor hot-plug, or unpredictable input transients require hardware-level overvoltage resilience without external components.
FAQ
What is the maximum fault voltage the NO pins of MAX4712EPE can withstand with power off?
The NO pins of MAX4712EPE withstand ±12V fault voltages even when all supplies are disconnected. This capability is intrinsic to the internal protection architecture and does not require external components. During such fault conditions, the NO pins become high-impedance, and no current flows into the device - preserving integrity until power is restored. This specification is verified per Maxim's Absolute Maximum Ratings table.
Does MAX4712EPE support rail-to-rail analog signal switching?
Yes, MAX4712EPE supports true rail-to-rail analog signal switching: signals from V− to V+ pass through the NO-to-COM path with minimal distortion. This is enabled by complementary N- and P-channel FETs operating in parallel. The device maintains ≤25Ω RON flatness across the full signal range at +25°C, making it suitable for precision applications like sensor front-ends and audio routing where signal headroom is critical.
Can MAX4712EPE be used with a single +3.3V supply?
Yes, MAX4712EPE operates from a single +3.3V supply (within its +2.7V to +11V range). At +3.3V, typical RON is 54Ω, logic thresholds are VIH = +2.0V and VIL = +0.6V, and tON/tOFF are 340ns/100ns. These values are fully characterized in the +3V Single Supply Electrical Characteristics tables. The device remains fault-protected, with +12V/−9V fault range on NO pins when powered from +3V.
Is MAX4712EPE pin-compatible with non-fault-protected alternatives?
Yes, MAX4712EPE shares identical pinout and footprint with the industry-standard MAX392 - including IN, COM, NO, V+, V−, GND, and N.C. assignments. This enables direct replacement in existing PCB layouts. However, only the NO and IN pins inherit fault protection; COM pins retain standard CMOS switch behavior and must not exceed supply rails - a key design consideration during migration.
How does the fault recovery behavior work in MAX4712EPE?
When a fault condition ends (e.g., NO voltage returns within V− to V+), MAX4712EPE requires ~700ns to recover normal switching operation under dual-supply conditions. During recovery, the COM output remains clamped until internal comparators confirm safe voltage levels. Recovery time increases with higher COM load capacitance or series resistance. This behavior is documented in the Fault Recovery Time parameter and confirmed in Figure 16 of the datasheet.
MAX4712EPE 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:
- Through Hole
- Supplier Device Package:
- 16-PDIP
MAX4712EPE FAQ
1.How can I place an order for MAX4712EPE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4712EPE 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 MAX4712EPE reliable?
The price and inventory of MAX4712EPE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4712EPE is usually 5 days.
3.What payment methods are accepted for MAX4712EPE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4712EPE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4712EPE?
MAX4712EPE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4712EPE 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 MAX4712EPE?
For technical support, including MAX4712EPE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4712EPE requirements.
6.How does Aetrix verify that MAX4712EPE is sourced from the original manufacturer or authorized distributors?
All MAX4712EPE 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 MAX4712EPE meets industry standards.
7.What is the process for return or replacement of MAX4712EPE?
All MAX4712EPE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4712EPE, 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 MAX4712EPE part is unused and in its original packaging.
Return procedure for MAX4712EPE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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