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Analog Devices Inc./Maxim Integrated MAX4712ESE+T
- Part No.:
- MAX4712ESE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4712ESE+T.pdf
- Description:
- IC SWITCH SPST-NOX4 25OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,207
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Product details
Overview
MAX4712ESE+T from Maxim Integrated is a fault-protected, quad SPST analog switch with four normally open (NO) channels, rail-to-rail signal handling, 25Ω max on-resistance at +25°C, ±12V fault protection with power off, and operation from single +2.7V to +11V or dual ±2.7V to ±5.5V supplies. It is used in battery-operated test equipment for robust signal routing under overvoltage transients.
For engineers reviewing the MAX4712ESE+T datasheet, MAX4712ESE+T pinout, MAX4712ESE+T application, or MAX4712ESE+T equivalent, key selection criteria include fault-protection voltage limits under single/dual supply conditions, on-resistance matching across channels, turn-on/turn-off timing at low V+, and compatibility with TTL/CMOS logic levels across supply ranges.
Technical Context
The MAX4712ESE+T employs parallel N- and P-channel FETs per channel to achieve low RON and rail-to-rail conduction. Two comparators continuously monitor NO_ pin voltage against V+ and V−; exceeding either rail by ~150mV triggers fault response-disabling the main FETs and enabling clamp FETs to limit COM_ to the appropriate supply rail.
Fault recovery time is 700ns (dual supply) or 500µs (single +5V), dependent on COM_ load resistance and capacitance. The COM_ pins lack fault protection and rely on internal ESD diodes-exceeding V+ or V− by >0.7V risks excessive current flow and device damage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RON) | 25Ω max at +25°C, +4.5V/+5.5V dual supply - ensures minimal signal attenuation in precision analog paths |
| RON match between channels | 1Ω max - critical for matched gain/phase in multi-channel instrumentation |
| Fault protection (power off) | ±12V on NO_/NC_ pins - enables safe hot-plug or sensor disconnect without external clamping |
| Turn-on time (tON) | <125ns (dual ±4.5V) - supports high-speed multiplexing in automated test systems |
| Logic compatibility | TTL/CMOS with VIH = +2.4V, VIL = +0.8V (≥+4.5V supply) - simplifies interface to legacy microcontrollers |
| Supply range | +2.7V to +11V (single) or ±2.7V to ±5.5V (dual) - accommodates Li-ion, 3.3V, 5V, and ±5V industrial rails |
| Operating temperature | –40°C to +85°C - qualified for industrial and avionics environments |
Pinout & Package
MAX4712ESE+T is housed in a 16-pin narrow SO package (SOIC-N), 7.5mm × 10.3mm body, 1.27mm pitch, JEDEC MS-012 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 (Pins 1, 8, 9, 16) | Digital control inputs | Fault-protected to (V− + 12V); drive internal logic to enable/disable respective NO switches |
| COM1–COM4 (Pins 2, 7, 10, 15) | Analog common terminals | Unprotected signal path outputs; must remain within V− to V+ to avoid ESD diode conduction |
| NO1–NO4 (Pins 3, 6, 11, 14) | Fault-protected analog inputs | Accept signals up to ±12V (power off) or (V− −12V) to (V+ +12V) (power on); clamp COM_ during fault |
| V+ (Pin 13) | Positive supply input | Supports single-supply operation when V− = GND; powers internal bias and clamp circuitry |
| V− (Pin 4) | Negative supply input | Connected to GND for single supply; enables true bipolar signal handling in dual-supply mode |
| GND (Pin 5) | Ground reference | Return path for logic and analog sections; decoupling required near Pin 5 for noise immunity |
| N.C. (Pin 12) | No connection | Not internally bonded; must remain unconnected on PCB to prevent parasitic coupling |
Key Features
| Feature | Design Value |
|---|---|
| Fault-protected NO inputs | Withstands ±12V faults even with power removed-eliminates need for external TVS diodes in field-deployed sensors |
| Rail-to-rail analog switching | Passes signals from V− to V+ without distortion-enables full dynamic range utilization in data-acquisition front-ends |
| 1Ω max RON matching | Ensures amplitude and phase consistency across four channels-critical for differential or multi-path calibration |
| Clamped COM_ output during fault | Prevents downstream IC damage by limiting output to safe rail voltage-reduces system-level fault propagation risk |
| Pin-compatible with MAX391/392/393 | Enables drop-in upgrade of legacy non-fault-protected switches without PCB redesign-lowers qualification cost |
Applications
| Automated Test Equipment (ATE) | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Multiplexing multiple sensor inputs (thermocouples, strain gauges) into a shared ADC channel under variable environmental stress. IC Role / Device Role / Timing Role: Quad SPST analog switch routing analog signals while rejecting ±12V ESD or wiring faults during field maintenance. Use Value: Eliminates external fault protection components and prevents ADC saturation or latch-up during transient overvoltage events. | Use Scenario: Selecting between primary and backup voltage/current sensors in portable environmental monitors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Low-leakage (±10nA off-state) NO switch enabling ultra-low-power signal path selection with <125ns switching. Use Value: Extends battery life via sub-100µA quiescent current and avoids signal corruption during brown-out or hot-swap events. |
| Avionics Signal Redundancy | Industrial Process Controller I/O Modules |
Use Scenario: Routing redundant flight-control sensor outputs to a voting logic unit where fault isolation is mandated by DO-254. IC Role / Device Role / Timing Role: Fault-protected analog switch ensuring continuity of valid signals while safely isolating failed channels exceeding ±7V (with ±5V supplies). Use Value: Meets AS60193 fault containment requirements without adding discrete protection circuitry or increasing board area. | Use Scenario: Isolating 4–20mA transmitter inputs in PLC analog input cards exposed to cable-induced surges in factory environments. IC Role / Device Role / Timing Role: Quad NO switch with ±12V fault tolerance on NO pins, clamping COM output to V+ or V− during surge events. Use Value: Replaces discrete op-amp-based protection schemes, reducing BOM count and improving MTBF in harsh EMI environments. |
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 max RON; same 16-pin narrow SO package and pinout | Suitable only in benign environments with controlled signal ranges and external clamping | Select when cost sensitivity outweighs fault resilience and system-level protection is already implemented |
| ADG1412BRUZ | 4-channel SPST, ±15V fault protection (power on), 1.8Ω max RON, TSSOP-16 package | Higher performance but requires PCB layout change due to different footprint and thermal pad | Choose for higher precision or wider fault margin where board revision is acceptable |
Compared with MAX392ESE+ and ADG1412BRUZ, the MAX4712ESE+T uniquely delivers integrated ±12V fault protection with power-off capability in a drop-in SOIC-N package-enabling immediate reliability uplift in existing designs without layout changes or added protection components.
Availability
MAX4712ESE+T is available at Aetrix Electronics and suitable for automated test equipment, battery-powered data loggers, avionics redundancy systems, and industrial process controller I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4712ESE+T 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, mixed-signal, and power-management ICs for industrial, automotive, communications, and computing markets.
The MAX4712ESE+T belongs to Maxim's fault-protected analog switch product line, designed specifically for signal routing in safety-critical and field-deployed systems where overvoltage transients, hot-plug events, or wiring faults cannot be tolerated.
FAQ
What is the maximum fault voltage the MAX4712ESE+T can withstand with power removed?
The MAX4712ESE+T guarantees ±12V fault protection on its NO_ pins even when all supplies are disconnected. This allows safe connection/disconnection of sensors or cables in unpowered systems without risking damage-critical for field-serviceable equipment where power cycling is impractical. The specification is tested and guaranteed per Absolute Maximum Ratings table.
Can the MAX4712ESE+T operate from a +3.3V single supply, and what are the key trade-offs?
Yes, the MAX4712ESE+T operates from +2.7V to +11V single supply. At +3.3V, RON increases to 75Ω max (vs. 25Ω at ±4.5V), tON/tOFF extend to 500ns/225ns, and logic thresholds shift to VIH = +2.0V/VIL = +0.6V. These are fully characterized in the +3V Electrical Characteristics tables and remain within specification for low-speed, low-voltage applications like portable medical sensors.
Why are the COM_ pins not fault-protected, and how should they be used safely?
The COM_ pins of the MAX4712ESE+T lack internal fault protection and connect directly to ESD diodes tied to V+ and V−. Exceeding V+ or V− by more than ~0.7V forward-biases these diodes, risking >40mA current flow and permanent damage. To ensure safe operation, COM_ signals must be strictly limited to the V−–V+ range-external clamping is required if downstream sources can violate this.
Is the MAX4712ESE+T pin-compatible with the MAX392, and are there any design considerations for replacement?
Yes, the MAX4712ESE+T shares identical pinout and package with the MAX392ESE+. However, only the NO_ pins are fault-protected-not COM_ or IN_. When replacing MAX392 in an existing design, verify that no COM_ node is exposed to overvoltage, and confirm that logic thresholds (VIH/VIL) align with the host controller's output levels under the chosen supply configuration.
What is the typical fault recovery time after a +12V transient on the NO_ pin when operating from a +5V single supply?
Under +5V single-supply conditions, the MAX4712ESE+T exhibits a typical fault recovery time of 500µs after a +12V transient on the NO_ pin. This delay reflects the time required for internal comparators and clamp FETs to reset once the input returns within the V−–V+ range. Recovery time varies with COM_ load impedance and is not production-tested but characterized in Typical Operating Characteristics (Figure toc17).
MAX4712ESE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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+T FAQ
1.How can I place an order for MAX4712ESE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4712ESE+T 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+T reliable?
The price and inventory of MAX4712ESE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4712ESE+T is usually 5 days.
3.What payment methods are accepted for MAX4712ESE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4712ESE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4712ESE+T?
MAX4712ESE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4712ESE+T 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+T?
For technical support, including MAX4712ESE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4712ESE+T requirements.
6.How does Aetrix verify that MAX4712ESE+T is sourced from the original manufacturer or authorized distributors?
All MAX4712ESE+T 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+T meets industry standards.
7.What is the process for return or replacement of MAX4712ESE+T?
All MAX4712ESE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4712ESE+T, 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+T part is unused and in its original packaging.
Return procedure for MAX4712ESE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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