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Analog Devices Inc./Maxim Integrated MAX4712CSE+
- Part No.:
- MAX4712CSE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4712CSE+.pdf
- Description:
- IC SWITCH SPST-NOX4 25OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,932
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Product details
Overview
MAX4712CSE+ 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 industrial control interfaces.
For engineers reviewing the MAX4712CSE+ datasheet, MAX4712CSE+ pinout, MAX4712CSE+ application, or MAX4712CSE+ equivalent, this device is selected for rail-to-rail analog switching where input overvoltage resilience, channel matching (<1Ω RON match), and dual/single-supply flexibility (+2.7V to +11V or ±2.7V to ±5.5V) are critical design requirements.
Technical Context
The MAX4712CSE+ uses parallel N- and P-channel FETs per switch 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 is asymmetric: positive faults engage P2 clamp sourcing from V+, negative faults engage N2 clamp sinking to V−. During fault, NO pins become high-impedance regardless of logic state, and COM output clamping sustains ≤±40mA continuous current - verified across 0°C to +70°C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RON) | 25Ω max at +25°C, ensuring minimal signal attenuation in precision analog paths |
| RON match between channels | 1Ω max, enabling matched gain/attenuation in multi-channel instrumentation |
| Turn-on time (tON) | <125ns at +25°C, supporting high-speed multiplexing in data acquisition |
| Fault protection range (power off) | ±12V on NO/NC pins, allowing safe connection to unpowered circuits or hot-swap interfaces |
| Supply range | +2.7V to +11V single or ±2.7V to ±5.5V dual, supporting portable and industrial rail-flexible designs |
| Logic compatibility | TTL/CMOS thresholds (VIH = +2.4V, VIL = +0.8V) with ±4.5V to ±5.5V or +4.5V to +11V supplies |
| Off-isolation | –59dB at 1MHz, minimizing crosstalk between inactive channels in dense routing |
Pinout & Package
MAX4712CSE+ is housed in a 16-pin narrow SO package (SOIC-N), 7.5mm × 5.3mm body, 1.27mm pitch, with exposed pad not present. Pin 12 is no-connect (N.C.).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 (Pins 1, 8, 9, 16) | Logic control inputs | Fault-protected digital inputs; drive corresponding NO switches ON/OFF; tolerate V− +12V |
| COM1–COM4 (Pins 2, 7, 10, 15) | Analog common terminals | Non-fault-protected outputs; 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; clamp to V+ or V− during overvoltage; asymmetric vs. COM |
| V+ (Pin 13) | Positive supply | Accepts +2.7V to +11V; powers internal logic and clamp FETs; referenced for VIH/VIL |
| V− (Pin 4) | Negative supply | Accepts –2.7V to –5.5V or GND for single supply; enables bipolar signal handling |
| GND (Pin 5) | Ground reference | Logic and analog reference; connects to system ground when V− = GND |
| N.C. (Pin 12) | No connection | Not internally bonded; must be left floating or grounded per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Fault-protected NO inputs | Withstands ±12V transients on NO pins even with power removed - eliminates need for external TVS in field-connected I/O |
| Rail-to-rail analog switching | Passes signals from V− to V+ without distortion or clipping - essential for full-scale sensor or DAC interface |
| 1Ω max RON match | Ensures consistent gain/phase across four channels in differential or multi-path signal conditioning |
| Pin-compatible with MAX391/392/393 | Enables drop-in upgrade path to fault protection without PCB redesign - validated for same footprint |
| Clamp output during fault | COM output actively clamped to V+ or V− (not floating), preventing downstream component damage |
Applications
| Battery-Operated Test Equipment | Redundant Signal Routing |
|---|---|
Use Scenario: Portable multimeter front-end switching between voltage, current, and resistance measurement paths under varying battery voltage (2.8V–4.2V). IC Role / Device Role / Timing Role: Quad NO analog switch isolating DMM input stages; fault protection prevents latch-up when probes contact live circuits before power-up. Use Value: Enables safe hot-probe operation and extends battery life via sub-100µA supply current at +3V. |
Use Scenario: Avionics backup flight control system selecting between primary and secondary sensor feeds with automatic failover. IC Role / Device Role / Timing Role: Fault-tolerant signal selector routing inertial measurement unit (IMU) outputs; fast tOFF <80ns ensures minimal interruption during switchover. Use Value: Prevents erroneous actuation due to transient-induced false switching during EMI events. |
| Industrial Process Control I/O | Communication System Signal Multiplexing |
Use Scenario: PLC analog input module conditioning 4–20mA loop signals in harsh factory environments with ground potential shifts up to ±10V. IC Role / Device Role / Timing Role: Isolating and routing sensor signals prior to ADC; NO pins withstand ground bounce without drawing excessive current. Use Value: Eliminates external protection circuitry, reducing BOM count and board area by 30%. |
Use Scenario: Base station RF front-end selecting between multiple antenna calibration paths while maintaining signal integrity up to 340MHz. IC Role / Device Role / Timing Role: Low-capacitance (8pF NOOFF) analog switch routing calibration tones; –59dB off-isolation suppresses inter-channel leakage. Use Value: Maintains EVM compliance during dynamic antenna tuning without recalibration. |
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; 35Ω max RON; same pinout and package | Suitable only in benign environments with pre-conditioned signals and external protection | Select when cost sensitivity outweighs overvoltage risk and board space allows discrete TVS |
| ADG1412BRUZ | 44V supply rating; 1.8Ω RON; no built-in fault clamping; requires external protection for >±15V | Targeted at high-voltage industrial automation, not low-voltage portable systems | Choose for higher voltage rails (>±10V) and lower RON, but add external fault protection circuitry |
Compared with MAX392CSE+ and ADG1412BRUZ, the MAX4712CSE+ uniquely integrates ±12V fault tolerance with rail-to-rail operation and sub-125ns switching - making it the only option that eliminates external protection components while maintaining timing and matching performance in 0°C to +70°C battery-powered systems.
Availability
MAX4712CSE+ is available at Aetrix Electronics and suitable for battery-operated test equipment, redundant signal routing, and industrial process control I/O requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX4712CSE+ 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 precision analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX4712CSE+ belongs to Maxim's fault-protected analog switch product line, engineered specifically for signal integrity preservation in systems exposed to unpredictable voltage transients - such as portable instrumentation and safety-critical control interfaces.
FAQ
What is the maximum fault voltage the MAX4712CSE+ can withstand on its NO pins with power removed?
The MAX4712CSE+ supports ±12V fault voltage on NO pins even when powered off - verified per Absolute Maximum Ratings and confirmed in Electrical Characteristics tables. This capability allows safe connection to unpowered subsystems or legacy equipment without risk of latch-up or damage, and is intrinsic to the internal ESD structure and comparator biasing, not dependent on external components. The MAX4712CSE+ maintains this rating across its full temperature range (0°C to +70°C).
Does the MAX4712CSE+ support true bidirectional signal flow between NO and COM pins?
Yes, the MAX4712CSE+ supports bidirectional analog signal flow between NO and COM pins during normal operation - enabled by its parallel N- and P-channel FET architecture. However, fault protection is unidirectional: only NO pins are fault-protected; COM pins lack internal clamping and must remain within V− to V+ to prevent ESD diode conduction. Bidirectional functionality is preserved only when both terminals stay within the specified analog signal range (V− to V+).
How does the MAX4712CSE+ behave during a positive fault condition on an NO pin?
When an NO pin exceeds V+ by ~150mV, the internal high-fault comparator triggers, turning off the main N1/P1 switching FETs and activating clamp FET P2. This forces the NO pin into high impedance and clamps the COM output to V+, limiting voltage excursion. The MAX4712CSE+ sustains this state until the NO input returns within the safe range, with a typical recovery delay of 700ns - independent of fault amplitude but dependent on COM load capacitance and resistance.
Is the MAX4712CSE+ pin-compatible with non-fault-protected alternatives like the MAX392?
Yes, the MAX4712CSE+ shares identical pinout, package (16-pin narrow SO), and logic interface with the MAX392CSE+, enabling direct PCB replacement. However, only NO/NC pins inherit fault protection - COM pins remain unprotected and require adherence to V−/V+ limits. Layout reuse is valid, but system-level fault resilience improves immediately without trace modifications, provided external signal conditioning aligns with the MAX4712CSE+'s asymmetric protection architecture.
What is the typical on-resistance flatness specification for the MAX4712CSE+ and why does it matter?
The MAX4712CSE+ guarantees ±5Ω on-resistance flatness (RFLAT) over its specified signal range - meaning RON varies by no more than 5Ω as the analog signal sweeps from V− to V+. This ensures minimal harmonic distortion and amplitude variation in AC-coupled or wide-dynamic-range applications like audio routing or sensor signal conditioning, where consistent channel gain is critical. Flatness is measured at +25°C with ±4.5V dual supplies and 10mA load current.
MAX4712CSE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- 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+ FAQ
1.How can I place an order for MAX4712CSE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4712CSE+ 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+ reliable?
The price and inventory of MAX4712CSE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4712CSE+ is usually 5 days.
3.What payment methods are accepted for MAX4712CSE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4712CSE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4712CSE+?
MAX4712CSE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4712CSE+ 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+?
For technical support, including MAX4712CSE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4712CSE+ requirements.
6.How does Aetrix verify that MAX4712CSE+ is sourced from the original manufacturer or authorized distributors?
All MAX4712CSE+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX4712CSE+?
All MAX4712CSE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4712CSE+, 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+ part is unused and in its original packaging.
Return procedure for MAX4712CSE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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