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Analog Devices Inc./Maxim Integrated MAX4632ESE+T
- Part No.:
- MAX4632ESE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4632ESE+T.pdf
- Description:
- IC SWITCH SPDT X 2 85OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,543
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Product details
Overview
The MAX4632ESE+T 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 matched channel resistance ≤6Ω. It operates from ±4.5V to ±18V dual supplies or +9V to +36V single supply and is used in industrial process control systems requiring robust overvoltage resilience during power-up/down.
For engineers reviewing the MAX4632ESE+T datasheet, MAX4632ESE+T pinout, MAX4632ESE+T application, or MAX4632ESE+T equivalent, key selection criteria include fault-protection voltage limits, rail-to-rail analog range, on-resistance matching, break-before-make timing, and TTL/CMOS logic compatibility across supply configurations.
Technical Context
The MAX4632ESE+T implements a parallel N-channel/P-channel FET architecture with integrated voltage-sensing comparators on each NO/NC terminal. During normal operation, it delivers bidirectional rail-to-rail conduction with low on-resistance; during overvoltage faults (>±25V with ±15V supplies), internal clamping circuitry disconnects the switch and clamps COM output to the appropriate supply rail without glitching.
It features independent digital control inputs (IN1, IN2) with fixed TTL/CMOS thresholds (0.8V/2.4V), no power-supply sequencing requirement, and automatic all-switches-off behavior when unpowered. Its fault response includes <5ns transient tracking and ~2.5µs recovery time after fault removal, dependent on external COM load capacitance and resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Fault Protection Range | ±25V on NO/NC pins with ±15V supplies; ±40V with power off - enables safe operation during hot-plug or sensor fault events |
| On-Resistance (max) | 85Ω at +25°C, VCOM = ±10V, ICOM = 1mA - ensures minimal signal attenuation in precision analog paths |
| On-Resistance Match | ≤6Ω between channels - critical for matched gain/phase in differential or multiplexed signal chains |
| Off-Leakage Current | 0.5nA at +25°C, 5nA at +85°C - preserves accuracy in high-impedance data acquisition front-ends |
| Supply Range | ±4.5V to ±18V dual or +9V to +36V single - supports legacy ±15V industrial rails and modern wide-input systems |
| Logic Compatibility | TTL/CMOS thresholds (0.8V/2.4V) with ±15V or +12V supply - eliminates level-shifting in mixed-signal controller interfaces |
| Break-Before-Make Delay | 5ns to 40ns - prevents momentary shorting in SPDT signal routing applications |
Pinout & Package
MAX4632ESE+T is housed in a 16-pin narrow SO package (SOIC-N16), with exposed pad not electrically connected. Pin functions are validated per Maxim's official pin configuration diagram (Rev 0, 7/99).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | COM1, COM2 | Analog common terminals - bidirectional signal path endpoints; must remain within V− to V+ during normal operation |
| 2, 7, 12 | N.C. | No internal connection - floating pins; no PCB trace required |
| 3, 6 | NC3, NC4 | Normally closed analog terminals - fault-protected; open when INx = 0, closed when INx = 1 |
| 4, 5 | NO3, NO4 | Normally open analog terminals - fault-protected; closed when INx = 0, open when INx = 1 |
| 9, 16 | NO1, NO2 | Normally open analog terminals - fault-protected; primary SPDT switching nodes for Channel 1 & 2 |
| 10, 15 | IN1, IN2 | Digital control inputs - drive internal gate translators; accept 0.8V/2.4V logic thresholds |
| 11 | V+ | Positive supply input - powers internal logic and P-FET gates; range: −0.3V to +44V |
| 13 | GND | Ground reference - connects to internal logic and ESD diodes; isolated from analog signal paths |
| 14 | V− | Negative supply input - powers N-FET gates; range: −44V to +0.3V |
Key Features
| Feature | Design Value |
|---|---|
| Fault protection on NO/NC pins | Withstands ±25V overvoltage (±15V supplies) or ±40V with power off - protects downstream circuitry without external components |
| Rail-to-rail signal handling | Passes signals from V− to V+ continuously - enables full dynamic range utilization in ±12V or +24V systems |
| No power-supply sequencing required | Operates safely regardless of V+, V−, or GND ramp order - simplifies power management in multi-rail systems |
| All switches off with power off | NO/NC terminals become open-circuit and leak <1nA - prevents backfeeding or unintended signal coupling during shutdown |
| Output clamped during fault | COM outputs actively clamp to V+ or V− during overvoltage - maintains defined logic levels and avoids latch-up in connected ICs |
Applications
| Industrial Process Control | Avionics Signal Routing |
|---|---|
Use Scenario: Multiplexing sensor inputs (RTD, thermocouple) in PLC analog input modules exposed to field wiring faults. IC Role / Device Role / Timing Role: Dual SPDT analog switch isolating fault-prone field connections from precision ADC front-end. Use Value: ±25V fault tolerance prevents damage during 4–20mA loop transients; 6Ω on-resistance match minimizes channel-to-channel gain error. | Use Scenario: Redundant flight-control signal switching in airborne data concentrators where hot-swap reliability is mandatory. IC Role / Device Role / Timing Role: Fault-protected SPDT selector enabling fail-safe switchover between primary and backup sensor buses. Use Value: Break-before-make timing <40ns avoids bus contention; rail-to-rail operation supports ±10V avionics signal standards. |
| ATE Equipment | Redundant Backup Systems |
Use Scenario: High-voltage test channel routing in semiconductor ATE systems switching ±20V DUT stimulus signals. IC Role / Device Role / Timing Role: Dual SPDT switch managing stimulus/sense path selection under automated test sequences. Use Value: 85Ω max on-resistance ensures low insertion loss at 1MHz; ±40V fault rating with power off enables safe probe contact before power application. | Use Scenario: Cross-strapping critical control signals between redundant controllers in nuclear or railway safety systems. IC Role / Device Role / Timing Role: Fault-isolated SPDT interface ensuring continuity during controller failover without signal corruption. Use Value: Output clamping to V+/V− during fault prevents false triggering; 0.5nA off-leakage preserves integrity of high-Z safety interlock lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4632CSE+ | 0°C to +70°C operating range vs. −40°C to +85°C for MAX4632ESE+T; identical pinout, electrical specs, and fault protection | Suitable for commercial-grade instrumentation but not extended-temperature industrial environments | Select MAX4632CSE+ only if ambient temperature remains within 0°C–70°C and cost sensitivity outweighs thermal margin needs |
| ADG465BRUZ | Single SPDT, ±20V fault protection, 45Ω typical on-resistance, but lacks break-before-make timing spec and rail-to-rail clamping behavior | Requires external clamping for ±25V+ fault scenarios; not drop-in for dual-channel or strict timing-critical routing | Consider ADG465BRUZ only for lower-voltage, single-channel designs where guaranteed BMB timing and ±25V fault immunity are nonessential |
Compared with MAX4632CSE+ and ADG465BRUZ, the MAX4632ESE+T uniquely combines extended temperature support, dual SPDT topology, ±25V fault tolerance with active clamping, and production-guaranteed break-before-make timing - making it the sole option for ruggedized dual-channel industrial signal routing.
Availability
MAX4632ESE+T is available at Aetrix Electronics and suitable for industrial process control, avionics signal routing, and ATE equipment requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for MAX4632ESE+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 high-reliability semiconductor solutions for industrial, automotive, and communications markets.
The MAX463x family targets high-voltage analog signal routing in harsh environments, emphasizing fault resilience, rail-to-rail performance, and pin compatibility with legacy DG-series switches - enabling drop-in upgrades without board redesign.
FAQ
What is the maximum fault voltage the MAX4632ESE+T can withstand on its NO/NC pins?
The MAX4632ESE+T withstands ±25V on NO/NC pins when powered with ±15V supplies, and ±40V when fully unpowered. Exceeding these limits risks permanent damage. This rating is specific to the MAX4632 variant; MAX4631/MAX4633 support ±36V under same conditions. The MAX4632ESE+T's fault protection is implemented via internal sensing and clamping circuitry that disconnects the switch and pulls COM to the appropriate rail.
Does the MAX4632ESE+T require power-supply sequencing during startup?
No, the MAX4632ESE+T does not require power-supply sequencing. Its architecture allows safe operation regardless of the ramp order of V+, V−, or GND. This eliminates complex power-management design in multi-rail systems. The MAX4632ESE+T automatically disables all switches when any supply is absent, and its fault-protection circuitry remains functional even during partial power conditions - a key advantage over non-fault-protected alternatives like DG403.
What is the on-resistance matching specification for the MAX4632ESE+T, and why does it matter?
The MAX4632ESE+T guarantees ≤6Ω on-resistance matching (∆RON) between its two SPDT channels at +25°C. This tight matching ensures consistent gain, phase, and settling behavior across both signal paths - essential in differential measurement, channel-multiplexed data acquisition, and precision calibration circuits. Mismatch >6Ω would introduce measurable channel-to-channel error in 16-bit+ systems; the MAX4632ESE+T's spec enables sub-0.01% matching in typical configurations.
Can the MAX4632ESE+T operate from a single +24V supply?
Yes, the MAX4632ESE+T operates from a single +24V supply with V− tied to GND, within its specified +9V to +36V range. In this configuration, the analog signal range extends from 0V to +24V, and fault protection applies to NO/NC pins up to +24V − (−40V) = +64V referenced to GND (i.e., ±40V relative to V−). Logic inputs retain TTL/CMOS compatibility, and on-resistance increases slightly versus ±15V operation - verified in the datasheet's single-supply on-resistance curves.
How does the MAX4632ESE+T behave during a transient overvoltage event?
During a transient overvoltage on NO/NC exceeding ±25V (with ±15V supplies), the MAX4632ESE+T's internal comparators detect the fault within nanoseconds, force the affected switch open, and clamp COM to V+ or V− depending on polarity - all without output glitches. Recovery takes ~2.5µs after the transient returns within rails. This behavior is production-tested and guaranteed, unlike many competitors where fault response is only characterized, not specified. The MAX4632ESE+T's clamping current is rated up to 24mA, protecting connected loads.
MAX4632ESE+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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX4632ESE+T FAQ
1.How can I place an order for MAX4632ESE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4632ESE+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 MAX4632ESE+T reliable?
The price and inventory of MAX4632ESE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4632ESE+T is usually 5 days.
3.What payment methods are accepted for MAX4632ESE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4632ESE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4632ESE+T?
MAX4632ESE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4632ESE+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 MAX4632ESE+T?
For technical support, including MAX4632ESE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4632ESE+T requirements.
6.How does Aetrix verify that MAX4632ESE+T is sourced from the original manufacturer or authorized distributors?
All MAX4632ESE+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 MAX4632ESE+T meets industry standards.
7.What is the process for return or replacement of MAX4632ESE+T?
All MAX4632ESE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4632ESE+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 MAX4632ESE+T part is unused and in its original packaging.
Return procedure for MAX4632ESE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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