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Analog Devices Inc./Maxim Integrated MAX4712CSE+T
- Part No.:
- MAX4712CSE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4712CSE+T.pdf
- Description:
- IC SWITCH SPST-NOX4 25OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,552
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Product details
Overview
MAX4712CSE+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 +2.7V to +11V single supply or ±2.7V to ±5.5V dual supplies. It serves in battery-operated systems and signal routing where overvoltage transients must be contained without damaging downstream circuitry.
For engineers reviewing the MAX4712CSE+T datasheet, MAX4712CSE+T pinout, MAX4712CSE+T application, or MAX4712CSE+T equivalent, key selection criteria include fault-protection voltage limits under powered/off conditions, on-resistance match across channels (≤1Ω max), switching speed (tON < 125ns, tOFF < 80ns), and compatibility with TTL/CMOS logic inputs across supply ranges.
Technical Context
The MAX4712CSE+T uses 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-turning off the main FETs and enabling clamp FETs to limit COM_ to the appropriate supply rail.
Fault protection remains active with power removed: NO_ pins become high-impedance virtual opens up to ±12V. COM_ pins lack fault protection and rely on internal ESD diodes; signals applied to COM_ must stay within V− to V+ to avoid excessive current flow.
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 and voltage drop in precision analog paths. |
| On-Resistance Match | 1Ω max between channels - critical for matched gain/phase in multi-channel instrumentation or audio routing. |
| Fault Protection (Power Off) | ±12V on NO_ pins - enables safe hot-plug or sensor disconnect in unpowered systems without external clamping. |
| Switching Speed | tON < 125ns, tOFF < 80ns - supports high-speed multiplexing in data acquisition and test equipment up to ~3 MHz bandwidth. |
| Supply Range | +2.7V to +11V (single) or ±2.7V to ±5.5V (dual) - accommodates Li-ion, USB, and industrial rails without level-shifting. |
| Logic Compatibility | VIH = +2.4V, VIL = +0.8V at +4.5V–+11V - directly interfaces with standard CMOS/TTL outputs without pull-ups or translators. |
| Off-Leakage Current | ±10nA max at +25°C - preserves signal integrity in high-impedance sensor front-ends and battery-critical standby modes. |
Pinout & Package
MAX4712CSE+T is housed in a 16-pin narrow SO package (SOIC-N), 7.5mm × 5.2mm body, 1.27mm pitch, JEDEC MS-012AC compliant. Pin 1 marked via notch or dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 (Pins 1, 8, 9, 16) | Logic control inputs | Fault-protected digital inputs accepting TTL/CMOS levels; drive internal switch gates and fault comparators. |
| COM1–COM4 (Pins 2, 7, 10, 15) | Analog common terminals | Unprotected bidirectional signal path nodes; must remain within V− to V+ to prevent ESD diode conduction. |
| NO1–NO4 (Pins 3, 6, 11, 14) | Fault-protected analog inputs | Withstand ±12V faults (power off) or −12V/+12V relative to supplies (power on); clamp COM_ to V+ or V− during overvoltage. |
| V+ (Pin 13) | Positive supply input | Accepts +2.7V to +11V (single) or +4.5V to +5.5V (dual); powers internal logic, comparators, and clamp FETs. |
| V− (Pin 4) | Negative supply input | Accepts −4.5V to −5.5V (dual) or GND (single); referenced for fault detection and negative clamp activation. |
| GND (Pin 5) | Ground reference | System ground return for logic and supply currents; separate from analog signal ground in mixed-signal layouts. |
| N.C. (Pin 12) | No connection | Internally unconnected; no PCB trace or thermal pad required; may be left floating or tied to GND for mechanical stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Signals from V− to V+ pass unattenuated in both directions - eliminates level-shifting in ±5V, ±3.3V, or +5V systems. |
| Output clamping during fault | COM_ is actively clamped to V+ (positive fault) or V− (negative fault) - protects downstream ADCs, op-amps, or microcontrollers. |
| All switches off with power off | NO_ pins become high-impedance virtual opens - prevents back-driving or leakage when system is unpowered. |
| Pin-compatible with MAX392 | Direct replacement for industry-standard non-fault-protected quad SPST switch - simplifies upgrade of legacy designs. |
| Low charge injection (25pC) | Minimizes voltage glitch on high-Z nodes during switching - essential for precision sample-and-hold and sensor multiplexing. |
Applications
| Battery-Operated Signal Routing | Redundant Backup Switching |
|---|---|
Use Scenario: Multiplexing multiple sensor inputs (e.g., thermocouples, RTDs) into a single ADC in portable medical or field instrumentation. IC Role / Device Role / Timing Role: Quad SPST NO switch isolating each sensor path; controlled by MCU GPIOs to select active channel. Use Value: Fault protection prevents damage from ESD or disconnected sensors generating ±12V transients; low RON and flatness preserve measurement accuracy. |
Use Scenario: Automatic switchover between primary and backup communication lines in avionics or industrial PLC I/O modules. IC Role / Device Role / Timing Role: Normally open switch enabling primary path; secondary path activated only upon fault detection or command. Use Value: Power-off fault tolerance allows safe disconnection while system is de-energized; fast tOFF (<80ns) minimizes interruption during failover. |
| Test Equipment Channel Selection | Industrial Process Control Signal Isolation |
Use Scenario: High-speed signal routing in automated test equipment (ATE) switching matrices for DUT stimulus/response paths. IC Role / Device Role / Timing Role: Low-latency analog switch providing sub-125ns channel enable/disable under FPGA control. Use Value: 340MHz −3dB bandwidth and −87dB crosstalk ensure signal fidelity across multi-channel test setups; TTL/CMOS compatibility simplifies controller interface. |
Use Scenario: Isolating 4–20mA current loop inputs from field transmitters in hazardous-area process controllers. IC Role / Device Role / Timing Role: Input-side switch protecting analog front-end from wiring faults, lightning-induced surges, or miswiring. Use Value: ±12V fault rating with power off withstands common industrial surge events; low leakage (<10nA) avoids loop current error. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX392CSE+ | No fault protection; RON = 35Ω max; operates from +5V only; no ±12V power-off tolerance. | Suitable only in benign, fully powered environments with strict voltage compliance. | Select when cost sensitivity outweighs fault resilience and system-level protection is already implemented externally. |
| ADG1412BRUZ | 4-channel SPST, fault-protected to ±20V (power on), but requires external fault-detection circuitry; RON = 1.8Ω typical. | Higher fault voltage margin but adds design complexity and board space for support components. | Choose for ultra-low RON and higher fault thresholds where additional circuitry is acceptable and layout area permits. |
Compared with MAX392CSE+ and ADG1412BRUZ, the MAX4712CSE+T uniquely delivers integrated ±12V power-off fault protection, rail-to-rail operation down to +2.7V, and pin compatibility with legacy designs-enabling robust signal routing without redesign or external protection components.
Availability
MAX4712CSE+T is available at Aetrix Electronics and suitable for battery-operated systems, test equipment, and industrial process control applications requiring stable component supply, long-term lifecycle support, and guaranteed fault-protection performance across temperature.
Supply support for MAX4712CSE+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, communications, and consumer markets.
The MAX471x family was designed specifically for fault-tolerant analog signal routing in harsh or unpredictable environments-prioritizing intrinsic overvoltage resilience, low distortion, and seamless integration into existing CMOS-switch-based layouts.
FAQ
What is the maximum fault voltage the MAX4712CSE+T can withstand with power removed?
The MAX4712CSE+T guarantees ±12V fault protection on NO_ pins even when all supplies are disconnected. This allows safe connection/disconnection of sensors or cables in unpowered systems without risk of latch-up or permanent damage. The NO_ pins become high-impedance virtual opens under this condition, and COM_ remains isolated unless driven externally.
Does the MAX4712CSE+T support rail-to-rail analog signals with a +3.3V single supply?
Yes, the MAX4712CSE+T supports rail-to-rail analog signals from 0V to +3.3V when operated from a +3.3V single supply (V− = GND). Its fault-free analog signal range spans V− to V+, and on-resistance remains below 100Ω at +2.7V supply-making it suitable for low-voltage portable and IoT applications.
Can the COM_ pins of the MAX4712CSE+T be driven beyond the supply rails?
No, the COM_ pins of the MAX4712CSE+T are not fault-protected. Exceeding V− or V+ on any COM_ pin forward-biases internal ESD diodes, potentially causing excessive current flow and device damage. Signals applied to COM_ must remain strictly within the supply rails-unlike NO_ pins, which tolerate ±12V faults.
Is the MAX4712CSE+T pin-compatible with the MAX392 series?
Yes, the MAX4712CSE+T has identical pinout and footprint to the MAX392CSE+, including IN_, COM_, NO_, V+, V−, GND, and N.C. placement. This enables direct drop-in replacement in existing PCBs-though designers must verify that fault protection behavior (e.g., automatic clamping, power-off isolation) aligns with system requirements.
What is the typical on-resistance match between channels in the MAX4712CSE+T?
The MAX4712CSE+T guarantees ≤1Ω maximum on-resistance match (∆RON) between any two channels at +25°C under ±4.5V supplies. This tight matching ensures consistent gain, phase, and settling behavior across all four switches-critical for precision applications like multi-channel data acquisition and balanced audio routing.
MAX4712CSE+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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX4712CSE+T FAQ
1.How can I place an order for MAX4712CSE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4712CSE+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 MAX4712CSE+T reliable?
The price and inventory of MAX4712CSE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4712CSE+T is usually 5 days.
3.What payment methods are accepted for MAX4712CSE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4712CSE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4712CSE+T?
MAX4712CSE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4712CSE+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 MAX4712CSE+T?
For technical support, including MAX4712CSE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4712CSE+T requirements.
6.How does Aetrix verify that MAX4712CSE+T is sourced from the original manufacturer or authorized distributors?
All MAX4712CSE+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 MAX4712CSE+T meets industry standards.
7.What is the process for return or replacement of MAX4712CSE+T?
All MAX4712CSE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4712CSE+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 MAX4712CSE+T part is unused and in its original packaging.
Return procedure for MAX4712CSE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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