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Analog Devices Inc./Maxim Integrated MAX4712CUE+T
- Part No.:
- MAX4712CUE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4712CUE+T.pdf
- Description:
- IC SW SPST-NOX4 25OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,277
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Product details
Overview
MAX4712CUE+T from Maxim Integrated is a fault-protected, quad SPST analog switch with normally open (NO) configuration, designed for signal routing in low-voltage systems. It delivers 25Ω max on-resistance at +25°C, <125ns turn-on time, and ±12V fault protection on NO/NC pins with power off - enabling robust operation in battery-powered test equipment and avionics interfaces.
For engineers reviewing the MAX4712CUE+T datasheet, MAX4712CUE+T pinout, MAX4712CUE+T application, or MAX4712CUE+T equivalent, this page provides verified specifications, fault-protection behavior under single/dual supply, rail-to-rail signal handling limits, and pin-compatible alternatives for industrial signal-switching designs.
Technical Context
The MAX4712CUE+T uses parallel N- and P-channel FETs per channel to achieve low RON and flat on-resistance over signal range. Its dual-comparator fault-sensing circuit detects input excursions beyond V+ or V− by ~150mV, disabling the main switch and activating clamp FETs to limit COM output to the appropriate supply rail.
Unlike standard analog switches, it maintains fault protection with zero supply voltage (±12V tolerance), and supports asymmetric dual supplies up to ±5.5V or single supplies from +2.7V to +11V. Digital inputs are TTL/CMOS-compatible across all valid supply ranges, with logic thresholds scaling to +2.0V/+0.6V at +3V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Quad SPST, normally open (NO) configuration - all four channels default open until enabled by logic high on INx. |
| On-Resistance (RON) | 25Ω max at +25°C, +4.5V/–4.5V supplies - ensures minimal signal attenuation in precision analog paths. |
| Fault Protection | ±12V on NO/NC pins with power off; ±7V with ±5V supplies - protects downstream circuitry from overvoltage transients without external clamps. |
| Turn-On/Off Time | <125ns tON, <80ns tOFF - supports high-speed multiplexing in data-acquisition and communication systems. |
| Supply Range | +2.7V to +11V single supply or ±2.7V to ±5.5V dual supply - enables flexible integration in mixed-voltage embedded systems. |
| Rail-to-Rail Operation | Full signal swing from V− to V+ on NO/NC/COM - preserves dynamic range in sensor interfaces and audio routing. |
| Logic Compatibility | TTL/CMOS thresholds (VIH = +2.4V, VIL = +0.8V at ≥+4.5V supply) - eliminates level-shifting in microcontroller-driven control planes. |
Pinout & Package
MAX4712CUE+T is housed in a 16-pin TSSOP package (3.0mm × 4.4mm, 0.65mm pitch), rated for 0°C to +70°C operation. Pin functions are identical to industry-standard MAX392 and non-fault-protected CMOS switches.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 (Pins 1, 8, 9, 16) | Digital control inputs | Fault-protected logic inputs; accept voltages up to (V− + 12V); drive internal switch gates. |
| COM1–COM4 (Pins 2, 7, 10, 15) | Analog common terminals | Non-fault-protected bidirectional signal path; must remain within V− to V+ to avoid ESD diode conduction. |
| NO1–NO4 (Pins 3, 6, 11, 14) | Normally open analog inputs | Fault-protected signal inputs; tolerate ±12V with power off; clamp to V+ or V− during fault. |
| V+ (Pin 13) | Positive supply rail | Accepts +2.7V to +11V (single) or +4.5V to +5.5V (dual); powers internal logic and clamp FETs. |
| V− (Pin 4) | Negative supply rail | Accepts –2.7V to –5.5V (dual) or GND (single); referenced for negative fault detection and clamp sourcing. |
| GND (Pin 5) | Ground reference | System ground return; required for single-supply operation and logic threshold referencing. |
| N.C. (Pin 12) | No connection | Not internally bonded; must be left floating or tied to GND per PCB layout best practices. |
Key Features
| Feature | Design Value |
|---|---|
| Fault-protected NO inputs | Withstands ±12V transients on NO pins even with zero supply - eliminates need for external TVS diodes in harsh environments. |
| Rail-to-rail analog switching | Passes signals from V− to V+ without clipping - critical for full-scale sensor outputs and DAC-driven actuator control. |
| Low on-resistance match | ≤1Ω max RON mismatch between channels - ensures consistent gain and phase response in multi-channel instrumentation. |
| Single- and dual-supply operation | Operates identically across +2.7V–+11V or ±2.7V–±5.5V - simplifies design reuse across portable and industrial platforms. |
| Pin-compatible with MAX392 | Drop-in replacement for legacy MAX392 layouts - reduces redesign effort while adding fault resilience. |
Applications
| Battery-Operated Test Equipment | Avionics Signal Routing |
|---|---|
Use Scenario: Portable multimeter front-end multiplexing of voltage, current, and resistance measurement paths. IC Role / Device Role / Timing Role: Quad SPST analog switch isolating DMM input stages from shared ADC and reference circuits. Use Value: Fault protection prevents damage from accidental probe contact with aircraft bus voltages (+28V or –28V transients). | Use Scenario: Redundant sensor signal selection in flight control computers with dual independent analog inputs. IC Role / Device Role / Timing Role: Normally open switch enabling fail-safe isolation of primary vs. backup air data sensors. Use Value: ±12V fault tolerance with power off ensures continuity during brownout events without latch-up risk. |
| Industrial Process Control I/O | Redundant Backup Systems |
Use Scenario: Multiplexing 4–20mA transmitter outputs into shared PLC analog input modules. IC Role / Device Role / Timing Role: Low-RON switch routing loop-powered sensor signals while maintaining galvanic isolation integrity. Use Value: 25Ω RON introduces <0.1% error in 250Ω shunt-based current sensing - meets SIL-2 accuracy requirements. | Use Scenario: Automatic switchover between primary and backup power monitoring circuits in telecom rectifiers. IC Role / Device Role / Timing Role: Fault-protected switch enabling hot-swap detection and seamless source transition without signal interruption. Use Value: <80ns tOFF minimizes glitch duration during source switching - avoids false trip in overvoltage protection logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX392CUE+ | No fault protection; 35Ω max RON; same pinout and logic interface. | Suitable only where input overvoltage risk is eliminated by system-level protection. | Select when cost sensitivity outweighs fault resilience needs and board space allows external clamping. |
| ADG1412BRUZ | 4-channel SPST, no fault protection; 1.8Ω typical RON; ±15V signal range; requires external charge pump for rail-to-rail. | Better RON but lacks integrated fault response - demands additional protection circuitry. | Choose for ultra-low distortion audio or precision instrumentation where sub-2Ω RON justifies added BOM complexity. |
Compared with MAX392CUE+ and ADG1412BRUZ, MAX4712CUE+T uniquely integrates ±12V fault tolerance with rail-to-rail operation and pin compatibility - delivering system-level reliability without layout changes or external components.
Availability
MAX4712CUE+T is available at Aetrix Electronics and suitable for battery-operated systems, avionics interfaces, and industrial process control requiring stable component supply, long-term lifecycle support, and guaranteed fault-protection performance.
Supply support for MAX4712CUE+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) designs high-performance analog and mixed-signal ICs for demanding industrial, automotive, and communications applications.
The MAX471x family was engineered specifically for fault-resilient analog signal routing in safety-critical and portable systems - combining low on-resistance, fast switching, and autonomous overvoltage protection in a single IC.
FAQ
What is the maximum fault voltage the MAX4712CUE+T can withstand on its NO pins with power removed?
The MAX4712CUE+T withstands ±12V on NO pins with zero supply voltage applied. This is explicitly guaranteed in the Absolute Maximum Ratings table and confirmed in the Fault-Protection Voltage and Power Off section. The device achieves this via internal high-impedance isolation of NO pins when unpowered, making it suitable for hot-plug and brownout scenarios without external protection.
Does the MAX4712CUE+T support rail-to-rail signal operation with a +3V single supply?
Yes, the MAX4712CUE+T supports rail-to-rail analog signal operation from 0V to +3V when configured for single-supply use (V− = GND). The Fault-Free Analog Signal Range specification confirms VCOM, VNO = V− to V+ under power-on conditions, and typical operating characteristics show functional on-resistance across the full 0V–3V range at +25°C.
How does the fault protection mechanism affect the COM pin during overvoltage events?
During a fault event, the MAX4712CUE+T clamps the COM pin to the appropriate supply rail (V+ for positive faults, V− for negative faults) using internal clamp FETs. The COM pin itself is not fault-protected - exceeding V+ or V− will forward-bias internal ESD diodes. Therefore, COM must always remain within V− to V+; only NO/NC pins tolerate overvoltage.
Is the MAX4712CUE+T pin-compatible with the MAX392, and what design considerations apply?
Yes, the MAX4712CUE+T has identical pinout and logic interface to the MAX392. However, only NO/NC pins are fault-protected - COM pins retain standard CMOS switch behavior. When replacing MAX392, verify that COM nodes are never exposed to overvoltage, and confirm that system-level fault currents remain within ±40mA absolute maximum ratings.
What is the typical on-resistance flatness of the MAX4712CUE+T over its signal range?
The MAX4712CUE+T guarantees ≤5Ω on-resistance flatness (RFLAT) over the specified signal range with ±4.5V supplies. This parameter reflects the peak-to-peak variation in RON as the analog signal sweeps from V− to V+, ensuring minimal harmonic distortion and amplitude-dependent gain error in AC-coupled signal paths.
MAX4712CUE+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-TSSOP
MAX4712CUE+T FAQ
1.How can I place an order for MAX4712CUE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4712CUE+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 MAX4712CUE+T reliable?
The price and inventory of MAX4712CUE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4712CUE+T is usually 5 days.
3.What payment methods are accepted for MAX4712CUE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4712CUE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4712CUE+T?
MAX4712CUE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4712CUE+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 MAX4712CUE+T?
For technical support, including MAX4712CUE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4712CUE+T requirements.
6.How does Aetrix verify that MAX4712CUE+T is sourced from the original manufacturer or authorized distributors?
All MAX4712CUE+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 MAX4712CUE+T meets industry standards.
7.What is the process for return or replacement of MAX4712CUE+T?
All MAX4712CUE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4712CUE+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 MAX4712CUE+T part is unused and in its original packaging.
Return procedure for MAX4712CUE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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