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Analog Devices Inc./Maxim Integrated MAX4632CSE+T
- Part No.:
- MAX4632CSE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4632CSE+T.pdf
- Description:
- IC SWITCH SPDT X 2 85OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,635
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Product details
Overview
MAX4632CSE+T from Maxim Integrated is a fault-protected, high-voltage dual SPDT analog switch with rail-to-rail signal handling. It features ±25V fault protection on NO/NC pins with ±15V supplies, 85Ω max on-resistance at +25°C, 0.5nA off-leakage at +25°C, and operates from ±4.5V to ±18V dual or +9V to +36V single supply. It is used in industrial process control systems for robust signal routing under overvoltage transients.
For engineers reviewing the MAX4632CSE+T datasheet, MAX4632CSE+T pinout, MAX4632CSE+T application, or MAX4632CSE+T equivalent, key selection criteria include fault-protection voltage limits (±25V with ±15V), SPDT topology with break-before-make timing, rail-to-rail analog range, TTL/CMOS-compatible logic thresholds, and SO-16 narrow package compatibility with DG403.
Technical Context
The MAX4632CSE+T implements a parallel N-channel/P-channel FET architecture with integrated voltage-sensing comparators on each NO/NC input. During normal operation, it delivers low on-resistance and bidirectional signal flow between COM and NO/NC terminals. When an input exceeds V+ or V− by ~50mV, internal sensing circuitry forces the switch open and clamps COM to the appropriate supply rail via dedicated clamp FETs (N2/P2).
This architecture enables simultaneous fault protection and rail-to-rail signal handling-unlike traditional series-FET fault-protected switches. The device supports dual-supply operation without sequencing requirements and maintains all switches off during power-off, with leakage current limited to nanoamperes under fault conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Fault Protection | ±25V on NO/NC pins with ±15V supplies; ±40V with power off - prevents latch-up or damage during transient overvoltage events |
| On-Resistance (max) | 85Ω at +25°C, VCOM = ±10V, ICOM = 1mA - ensures minimal signal attenuation in precision analog paths |
| Off-Leakage Current | 0.5nA at +25°C, VCOM = ±14V, VNO/VNC = ∓14V - preserves accuracy in high-impedance sensor interfaces |
| Supply Range | ±4.5V to ±18V dual or +9V to +36V single - supports wide industrial and avionics power architectures |
| Logic Compatibility | TTL/CMOS thresholds (VINL = 0.8V, VINH = 2.4V at ±15V) - enables direct interfacing with microcontrollers and FPGAs |
| Break-Before-Make Delay | 5ns to 40ns at +25°C - prevents momentary shorting in SPDT multiplexing applications |
| Turn-On/Off Time | 100ns/50ns typical (VCOM = ±10V, RL = 1kΩ) - suitable for medium-speed data acquisition sampling |
Pinout & Package
MAX4632CSE+T is housed in a 16-pin narrow SO package (SOIC-N16), with exposed pad not electrically connected. Pin 1 is located at top-left corner when notch faces up.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | COM1, COM2 | Common analog terminals for SPDT switching; bidirectional signal path with rail-to-rail capability |
| 2, 7, 12 | N.C. | No internal connection - must be left floating or grounded per layout best practices |
| 3, 6 | NC3, NC4 | Normally closed analog terminals for Switch 1 and Switch 2; fault-protected up to ±25V |
| 4, 5 | NO3, NO4 | Normally open analog terminals for Switch 1 and Switch 2; fault-protected up to ±25V |
| 9, 16 | NO1, NO2 | Normally open analog terminals for Switch 1 and Switch 2; fault-protected up to ±25V |
| 10, 15 | IN1, IN2 | Digital control inputs for Switch 1 and Switch 2; TTL/CMOS compatible with defined logic thresholds |
| 11 | V+ | Positive supply input - powers internal logic and gate drivers; sets high-threshold voltage |
| 13 | GND | Ground reference for logic circuitry and ESD protection diodes |
| 14 | V− | Negative supply input - powers gate drivers and defines low-threshold reference |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail Signal Handling | Signals from V− to V+ pass unattenuated through COM–NO/NC paths, enabling full dynamic range utilization in ±15V systems |
| Fault-Protected Inputs | NO/NC pins withstand ±25V faults with ±15V supplies and ±40V with power off - eliminates need for external clamping diodes |
| No Power-Supply Sequencing Required | V+ and V− may be applied in any order without risk of latch-up or undefined states - simplifies power management design |
| Output Clamp During Fault | When fault occurs, COM is actively clamped to V+ or V− (whichever polarity matches the overvoltage), preventing downstream component damage |
| Pin Compatibility with DG403 | Identical SO-16 pinout to industry-standard DG403 - enables drop-in replacement in legacy designs with verified fault-protection upgrade |
Applications
| Industrial Process Control | Avionics Signal Routing |
|---|---|
Use Scenario: Multiplexing sensor signals (thermocouples, RTDs) in PLC I/O modules exposed to field wiring transients. IC Role / Device Role / Timing Role: Dual SPDT analog switch routing differential inputs to ADC front-end while surviving ±25V surges on field lines. Use Value: Eliminates external TVS diodes and reduces BOM count by integrating fault protection with rail-to-rail analog bandwidth. | Use Scenario: Selecting between primary and backup flight control sensors in fly-by-wire systems. IC Role / Device Role / Timing Role: High-reliability SPDT switch ensuring uninterrupted signal continuity during redundancy handover. Use Value: Break-before-make timing prevents short-circuit hazards; fault tolerance avoids single-point failure during lightning-induced transients. |
| ATE Equipment | Redundant Backup Systems |
Use Scenario: Channel switching in automated test equipment for semiconductor parametric testing under variable supply conditions. IC Role / Device Role / Timing Role: Dual SPDT switch enabling flexible DUT interface configuration across ±15V and +24V test rails. Use Value: Wide supply range (+9V to +36V single or ±4.5V to ±18V dual) supports multi-rail ATE platforms without level-shifting. | Use Scenario: Isolating failed subsystems in redundant server power management units. IC Role / Device Role / Timing Role: Fault-aware analog switch disconnecting faulty voltage/current sense paths before thermal runaway. Use Value: Nanoampere off-leakage preserves measurement integrity; output clamping prevents fault propagation to healthy channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4632ESE+ | Same electrical specs but rated for −40°C to +85°C commercial temperature range (vs. C-grade −40°C to +85°C); identical SO-16 package | Targeted at cost-sensitive industrial applications where extended temp is not required | Select MAX4632ESE+ only if full C-grade qualification is unnecessary and lower unit cost is prioritized |
| ADG408BRUZ | 8-channel CMOS multiplexer (not SPDT); no fault protection; 40Ω on-resistance; ±15V supply only | Suitable for non-fault-critical, higher-channel-count signal routing in lab equipment | Choose ADG408BRUZ only when channel count > 2 is needed and fault protection is handled externally |
Compared with MAX4632ESE+, the MAX4632CSE+T offers identical performance but is optimized for production reliability with tighter AC parameter screening. Compared with ADG408BRUZ, it trades channel count for integrated fault protection and SPDT flexibility-critical for safety-critical industrial and avionics signal paths.
Availability
MAX4632CSE+T is available at Aetrix Electronics and suitable for industrial process control, avionics signal routing, and ATE equipment requiring stable component supply, long-term lifecycle support, and guaranteed fault-protection compliance.
Supply support for MAX4632CSE+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 precision analog, mixed-signal, and power-management ICs for demanding industrial, automotive, and communications applications.
The MAX463x family was developed specifically for high-voltage analog signal routing in harsh environments where overvoltage transients are common - emphasizing fault resilience, rail-to-rail operation, and pin compatibility with legacy switches.
FAQ
What is the maximum fault voltage the MAX4632CSE+T can withstand on its NO/NC pins?
The MAX4632CSE+T withstands ±25V on NO/NC pins when powered with ±15V supplies, and ±40V when fully powered down. Exceeding these limits risks permanent damage. This rating is specific to the MAX4632 variant - MAX4631/MAX4633 support ±36V under same conditions. Always verify actual system supply voltages before deployment.
Does the MAX4632CSE+T require power-supply sequencing during startup?
No, the MAX4632CSE+T does not require power-supply sequencing. V+ and V− may be applied in any order without causing latch-up or undefined behavior. This simplifies power management in systems with asymmetric or staggered supply ramps. The internal logic remains inactive until both supplies are within operating range, and all switches default to OFF state during power transitions.
Can the MAX4632CSE+T operate from a single +12V supply?
Yes, the MAX4632CSE+T operates from a single +12V supply with V− connected to GND. Its specified single-supply range is +9V to +36V. At +12V, logic thresholds remain TTL/CMOS-compatible (VINL ≈ 0.8V, VINH ≈ 2.4V), on-resistance is ~125Ω max, and fault protection applies to ±25V relative to GND on NO/NC pins. Performance data for single-supply operation is fully characterized in the datasheet.
Is the MAX4632CSE+T pin-compatible with the DG403 analog switch?
Yes, the MAX4632CSE+T has identical pinout and footprint to the DG403 in the 16-pin narrow SO package. However, only the NO/NC pins are fault-protected - COM, IN, V+, V−, and GND retain standard functionality. Replacement requires verification that fault protection adds value in the target application, as internal clamping behavior differs from passive DG403 implementations.
What is the typical turn-on time for the MAX4632CSE+T at ±15V supplies?
The typical turn-on time (tON) for the MAX4632CSE+T is 100ns at ±15V supplies, VCOM = ±10V, and RL = 1kΩ. This value is measured from 50% of the logic input transition to 90% of the analog output transition. Turn-on time increases slightly at lower supply voltages and higher temperatures - e.g., ~150ns at ±12V and +85°C - as confirmed in the Typical Operating Characteristics graphs.
MAX4632CSE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 85Ohm
- Channel-to-Channel Matching (ΔRon):
- 3Ohm
- Voltage - Supply, Single (V+):
- 9V ~ 36V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 18V
- Switch Time (Ton, Toff) (Max):
- 150ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 18pF, 18pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -66dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX4632CSE+T FAQ
1.How can I place an order for MAX4632CSE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4632CSE+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 MAX4632CSE+T reliable?
The price and inventory of MAX4632CSE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4632CSE+T is usually 5 days.
3.What payment methods are accepted for MAX4632CSE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4632CSE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4632CSE+T?
MAX4632CSE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4632CSE+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 MAX4632CSE+T?
For technical support, including MAX4632CSE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4632CSE+T requirements.
6.How does Aetrix verify that MAX4632CSE+T is sourced from the original manufacturer or authorized distributors?
All MAX4632CSE+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 MAX4632CSE+T meets industry standards.
7.What is the process for return or replacement of MAX4632CSE+T?
All MAX4632CSE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4632CSE+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 MAX4632CSE+T part is unused and in its original packaging.
Return procedure for MAX4632CSE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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