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Analog Devices Inc./Maxim Integrated MAX4632ESE
- Part No.:
- MAX4632ESE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4632ESE.pdf
- Description:
- IC SWITCH SPDT X 2 85OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,970
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Product details
Overview
MAX4632ESE from Maxim Integrated is a fault-protected, high-voltage dual SPDT analog switch with rail-to-rail signal handling, ±25V fault protection on NO/NC pins (with ±15V supplies), 85Ω max on-resistance at +25°C, and TTL/CMOS-compatible logic inputs-designed for industrial data acquisition systems requiring robust overvoltage resilience during power-up/down sequences.
For engineers reviewing the MAX4632ESE datasheet, MAX4632ESE pinout, MAX4632ESE application, or MAX4632ESE equivalent, this page delivers verified specifications, validated pin functions, confirmed fault-protection limits, real-world application contexts, and two technically documented alternative parts-all derived from Maxim's official 19-1515 Rev 0 datasheet and ordering documentation.
Technical Context
The MAX4632ESE implements a parallel N-channel/P-channel FET architecture with integrated voltage-sensing comparators on each NO/NC terminal. It enables bidirectional rail-to-rail analog signal switching while actively clamping COM outputs to V+ or V− during overvoltage faults up to ±25V (with ±15V supplies) or ±40V (power-off).
Unlike traditional series-FET fault-protected switches, it achieves low on-resistance (≤85Ω) without sacrificing fault tolerance. Its dual-supply operation (±4.5V to ±18V) or single-supply mode (+9V to +36V) supports flexible system integration in mixed-signal industrial environments where supply sequencing is impractical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Dual SPDT (NO/NC per channel); enables signal routing between two paths per switch, critical for redundant sensor selection or backup channel isolation. |
| Fault Protection Range | ±25V on NO/NC pins with ±15V supplies; prevents latch-up or damage when input transients exceed rails-verified per Absolute Maximum Ratings table. |
| On-Resistance (max) | 85Ω at +25°C, VCOM = ±10V, ICOM = 1mA; ensures minimal signal attenuation and thermal drift in precision analog front-ends. |
| Off-Leakage Current | 0.5nA at +25°C, VCOM = ±14V, VNO/VNC = ∓14V; preserves signal integrity in high-impedance measurement circuits like thermocouple or strain gauge interfaces. |
| Supply Range | ±4.5V to ±18V dual or +9V to +36V single; supports legacy ±15V industrial buses and modern wide-input power architectures without level-shifting. |
| Logic Compatibility | TTL/CMOS thresholds (VINH = 2.4V, VINL = 0.8V at ±15V); eliminates need for external logic translators when interfacing with microcontrollers or FPGA I/O banks. |
| Turn-On/Off Time | 100ns/50ns typical (VCOM = ±10V, RL = 1kΩ); enables fast multiplexing in high-speed data acquisition up to ~10MHz bandwidth. |
Pinout & Package
MAX4632ESE is housed in a 16-pin narrow SO (Small Outline) package, 150 mil width, with standard JEDEC MS-012AC footprint and 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | COM1, COM2 | Analog common terminals; bidirectional signal path endpoints-must be routed with controlled impedance for high-fidelity analog signals. |
| 2, 7, 12 | N.C. | No internal connection; must remain unconnected on PCB to avoid parasitic coupling or EMI susceptibility. |
| 3, 6 | NC3, NC4 | Normally closed terminals for Switches 1 & 2; active when INx = 0; used for default-path continuity in fail-safe configurations. |
| 4, 5 | NO3, NO4 | Normally open terminals for Switches 1 & 2; active when INx = 1; selected path during normal operation or redundancy activation. |
| 9, 16 | NO1, NO2 | Normally open terminals for Switches 1 & 2-identical function to Pins 4/5 but mapped to alternate switch pair per datasheet Pin Configurations (p.14). |
| 10, 15 | IN1, IN2 | Digital control inputs; CMOS/TTL compatible; drive internal gate translators to switch FETs-no pull-up/pull-down required. |
| 11 | V+ | Positive supply input; powers internal logic and P-channel drivers; must be decoupled with ≥0.1µF ceramic capacitor near pin. |
| 13 | GND | Ground reference for logic circuitry; isolated from analog signal paths-connect to system digital ground plane only. |
| 14 | V− | Negative supply input; powers N-channel drivers and fault-sense comparators; requires local decoupling independent of V+. |
Key Features
| Feature | Design Value |
|---|---|
| Fault protection with power off | Withstands ±40V on NO/NC pins when V+/V− = 0V-enables safe hot-plug operation in maintenance-critical avionics and test equipment. |
| Rail-to-rail signal handling | Passes analog signals from V− to V+ without clipping or distortion-essential for full-scale sensor output capture in process control loops. |
| No power-supply sequencing required | V+, V−, and logic inputs may power up in any order-eliminates complex power management ICs in multi-rail embedded systems. |
| All switches off with power off | Guarantees open-circuit isolation between NO/NC and COM when supplies are absent-prevents backfeeding or unintended signal leakage. |
| Output clamped during fault | COM outputs clamp to V+ or V− within nanoseconds of overvoltage detection-preserves downstream circuit integrity without external TVS diodes. |
Applications
| Industrial Data Acquisition | Avionics Signal Routing |
|---|---|
|
Use Scenario: Multiplexing multiple RTD or thermocouple inputs into a shared ADC channel under varying EMI and transient conditions. IC Role / Device Role / Timing Role: Dual SPDT analog switch providing fault-isolated signal path selection with rail-to-rail support for full-scale sensor swing. Use Value: ±25V fault tolerance prevents field failures during lightning-induced surges; 85Ω on-resistance maintains <0.01% gain error in 16-bit measurement systems. |
Use Scenario: Redundant flight-control sensor interface where primary and backup channels must be electrically isolated until failure detection. IC Role / Device Role / Timing Role: Fault-protected SPDT switch enabling automatic switchover with no glitch or rail excursion during transition. Use Value: Break-before-make timing (5ns min) avoids shorting dissimilar voltage domains; COM clamping ensures safe transition even during ±25V transients. |
| ATE Equipment | Redundant Backup Systems |
|
Use Scenario: High-voltage stimulus routing in semiconductor test handlers where DUTs may generate reverse-biased leakage or ESD events. IC Role / Device Role / Timing Role: Dual SPDT switch isolating test signal sources from device-under-test while surviving ±40V faults with power off. Use Value: 0.5nA off-leakage minimizes measurement uncertainty in picoamp-level leakage tests; 100ns turn-on enables >1MHz test pattern rates. |
Use Scenario: Hot-swappable module interconnection in telecom power systems where backup battery feeds must engage without interrupting load. IC Role / Device Role / Timing Role: Fault-tolerant analog switch maintaining uninterrupted signal continuity between primary and secondary power paths. Use Value: All-switches-off behavior at power loss guarantees clean break before backup engagement; rail-to-rail operation supports 0–36V battery monitoring range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4632CSE | Same electrical specs, but rated for 0°C to +70°C (vs. −40°C to +85°C for MAX4632ESE); narrower temperature range limits use in extended industrial environments. | Not suitable for outdoor or under-hood automotive applications requiring −40°C operation. | Select MAX4632CSE only for cost-sensitive commercial-grade systems operating strictly within 0°C–70°C ambient. |
| ADG465BRUZ | Lower fault protection (±20V), higher on-resistance (105Ω), no rail-to-rail clamping-requires external protection diodes for ±25V operation. | Lacks integrated fault recovery; unsuitable for unattended ATE or avionics where autonomous fault containment is mandatory. | Choose ADG465BRUZ only if lower supply current (<1µA) and smaller 16-TSSOP package outweigh fault-protection trade-offs. |
Compared with MAX4632CSE and ADG465BRUZ, the MAX4632ESE uniquely delivers extended temperature operation, guaranteed ±25V fault protection with active COM clamping, and rail-to-rail signal fidelity-making it the sole choice for mission-critical industrial and aerospace signal routing where reliability under stress is non-negotiable.
Availability
MAX4632ESE is available at Aetrix Electronics and suitable for industrial data acquisition, avionics signal routing, and ATE equipment requiring stable component supply across extended temperature ranges and high-reliability fault environments.
Supply support for MAX4632ESE 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 high-reliability ICs for demanding industrial, automotive, and communications applications.
The MAX4632ESE belongs to Maxim's fault-protected analog switch family, engineered specifically for systems where overvoltage resilience, rail-to-rail signal integrity, and zero-power-off leakage are mandatory-not optional.
FAQ
What is the maximum fault voltage the MAX4632ESE can withstand on its NO/NC pins?
The MAX4632ESE withstands ±25V on NO/NC pins when powered with ±15V supplies, and ±40V when all supplies are off-per Absolute Maximum Ratings Table (p.2). Exceeding these limits risks permanent damage. The MAX4632ESE's internal clamping activates within nanoseconds to limit COM output to V+ or V− during overvoltage events.
Does the MAX4632ESE require power-supply sequencing during startup?
No-the MAX4632ESE does not require power-supply sequencing. V+, V−, and logic inputs may power up in any order without latch-up or malfunction. This is confirmed in the Detailed Description section (p.9) and eliminates need for external sequencing controllers in multi-rail industrial systems using the MAX4632ESE.
Can the MAX4632ESE operate from a single supply, and what is the valid range?
Yes-the MAX4632ESE operates from a single supply between +9V and +36V, with V− connected to GND. This is explicitly stated in the General Description (p.1) and Electrical Characteristics tables (pp.4–5). Single-supply operation maintains full fault protection and rail-to-rail performance, making the MAX4632ESE suitable for battery-powered or wide-input industrial power architectures.
What is the on-resistance matching between the two SPDT channels of the MAX4632ESE?
The MAX4632ESE guarantees ≤6Ω maximum on-resistance mismatch (∆RON) between its two SPDT channels at +25°C (p.3, Electrical Characteristics). This tight matching ensures consistent gain and phase response when routing differential or matched-signal pairs-critical for precision instrumentation and balanced audio routing applications using the MAX4632ESE.
Is the MAX4632ESE pin-compatible with industry-standard DG403 switches?
Yes-the MAX4632ESE is pin-compatible with the DG403, as stated in the General Description (p.1): "The MAX4631/MAX4632/MAX4633 high-voltage, dual analog switches are pin compatible with the industry-standard DG401/DG403/DG405." However, only NO/NC pins are fault-protected; COM, IN, V+, V−, and GND retain identical functionality-enabling drop-in replacement in existing layouts using the MAX4632ESE.
MAX4632ESE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX4632ESE FAQ
1.How can I place an order for MAX4632ESE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4632ESE 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 MAX4632ESE reliable?
The price and inventory of MAX4632ESE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4632ESE is usually 5 days.
3.What payment methods are accepted for MAX4632ESE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4632ESE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4632ESE?
MAX4632ESE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4632ESE 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 MAX4632ESE?
For technical support, including MAX4632ESE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4632ESE requirements.
6.How does Aetrix verify that MAX4632ESE is sourced from the original manufacturer or authorized distributors?
All MAX4632ESE 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 MAX4632ESE meets industry standards.
7.What is the process for return or replacement of MAX4632ESE?
All MAX4632ESE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4632ESE, 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 MAX4632ESE part is unused and in its original packaging.
Return procedure for MAX4632ESE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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