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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:3,357
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Product details
Overview
MAX4632ESE-T from Maxim Integrated is a fault-protected, high-voltage dual SPDT analog switch with rail-to-rail signal handling, 85Ω max on-resistance at +25°C, ±25V fault protection on NO_/NC_ pins with ±15V supplies, and TTL/CMOS-compatible logic inputs. It operates from ±4.5V to ±18V dual supplies or +9V to +36V single supply and is used in industrial process control systems where overvoltage transients threaten downstream circuitry.
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 (±25V with power on), on-resistance matching (≤6Ω between channels), off-leakage current (≤5nA at +85°C), break-before-make timing (5–40ns), and compatibility with legacy DG403 layouts.
Technical Context
The MAX4632ESE-T employs parallel N-channel and P-channel MOSFETs per switch channel, enabling low on-resistance while supporting rail-to-rail analog signals. Its internal voltage-sensing comparators monitor NO_/NC_ pins continuously against V+ and V− rails.
During fault conditions (>±25V on NO_/NC_ with ±15V supplies), the switch disconnects COM_ from the faulty terminal and clamps COM_ to the appropriate supply rail via dedicated clamp FETs (N2/P2), delivering up to 18mA of clamped output current without glitching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (max) | 85Ω at +25°C, ±15V supplies - ensures minimal signal attenuation in precision analog paths |
| Fault Protection Range | ±25V on NO_/NC_ with ±15V supplies - protects connected ADCs or sensors from transient overvoltages |
| Off-Leakage Current (max) | 5nA at +85°C - preserves accuracy in high-impedance measurement circuits |
| Supply Range | ±4.5V to ±18V dual or +9V to +36V single - supports wide industrial power architectures |
| Logic Thresholds | +0.8V low / +2.4V high - guarantees interoperability with both TTL and CMOS drivers at ±15V or +12V supply |
| Break-Before-Make Delay | 5–40ns - prevents momentary shorting in multiplexer configurations requiring channel isolation |
| Turn-On/Off Time | 100–600ns - enables reliable switching in data acquisition sampling rates up to ~1MHz |
Pinout & Package
MAX4632ESE-T is housed in a 16-pin narrow SO package (SOIC-N) with 1.27mm pitch, compliant with JEDEC MS-012. Pin 1 is located at the top-left corner adjacent to the index mark.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | COM1, COM2 | Common analog terminals for SPDT switching - bidirectional signal path shared between NC and NO |
| 2, 7, 12 | N.C. | No internal connection - must be left unconnected or grounded per layout best practice |
| 3, 6 | NC3, NC4 | Normally closed analog terminals for Switch 1 & 2 - connects to COM when IN = 0 |
| 4, 5 | NO3, NO4 | Normally open analog terminals for Switch 1 & 2 - connects to COM when IN = 1 |
| 9, 16 | NO1, NO2 | Normally open analog terminals for Switch 1 & 2 - redundant labeling per package variant |
| 10, 15 | IN1, IN2 | Digital control inputs - active-high logic drives SPDT state; compatible with 0/+5V or 0/+12V levels |
| 11 | V+ | Positive supply input - powers internal logic and P-channel gate drivers; range: +9V to +36V (single) or ±4.5V to ±18V (dual) |
| 13 | GND | Ground reference - return path for logic circuitry and ESD protection diodes |
| 14 | V− | Negative supply input - powers N-channel gate drivers; required for dual-supply operation |
Key Features
| Feature | Design Value |
|---|---|
| Fault protection with rail clamping | Clamps COM_ to V+ or V− during ±25V faults (±15V supplies), delivering up to 18mA without transition glitches |
| Rail-to-rail analog signal handling | Supports signals from V− to V+ on NO_/NC_, enabling full dynamic range utilization in ±15V systems |
| No power-supply sequencing required | Operates safely with arbitrary V+/V− ramp-up order - eliminates need for external sequencing circuitry |
| Pin compatibility with DG403 | Identical 16-pin SO footprint and signal mapping to industry-standard DG403 - simplifies drop-in upgrade |
| Low power consumption | <6mW typical at ±15V - reduces thermal load in dense industrial PCB layouts |
Applications
| Industrial Process Control | Data Acquisition Systems |
|---|---|
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 conditioned analog inputs to a shared ADC channel. Use Value: ±25V fault protection prevents latch-up or damage during 24V field-wire surges, maintaining system uptime. |
Use Scenario: Channel selection in modular benchtop DMMs with auto-ranging front-end amplifiers. IC Role / Device Role / Timing Role: High-precision signal routing with sub-10ns break-before-make timing to avoid cross-talk between ranges. Use Value: 6Ω max on-resistance matching ensures consistent gain across channels, reducing calibration drift. |
| Avionics Signal Conditioning | Redundant Backup Systems |
Use Scenario: Selecting between primary and backup flight sensor outputs in airborne health monitoring units. IC Role / Device Role / Timing Role: Fault-tolerant analog switch ensuring continuity during voltage spikes on MIL-STD-704 avionics buses. Use Value: Power-off fault tolerance (±40V) allows safe hot-swap of sensor modules without system shutdown. |
Use Scenario: Automatic failover between main and standby power-monitoring circuits in telecom rectifier shelves. IC Role / Device Role / Timing Role: Dual SPDT switch isolating faulty measurement paths while maintaining uninterrupted voltage/current readback. Use Value: All-switches-off behavior at power loss prevents backfeeding into failed subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4632CSE | Same functionality and pinout, but rated for 0°C to +70°C commercial temperature range vs. −40°C to +85°C for MAX4632ESE-T | Suitable for non-industrial environments; lacks extended temperature qualification for factory-floor deployment | Select MAX4632CSE only if ambient operating temperature remains within 0°C–70°C and cost sensitivity outweighs reliability requirements |
| ADG408BRUZ | 8-channel single-pole/single-throw (SPST) switch; no fault protection; 44Ω typical on-resistance; operates up to ±15V only | Lacks overvoltage fault response and rail clamping - requires external protection circuitry in harsh environments | Choose ADG408BRUZ only for benign lab-grade instrumentation where fault exposure is negligible and channel count is prioritized |
Compared with MAX4632CSE, the MAX4632ESE-T provides guaranteed operation across −40°C to +85°C and superior fault resilience; compared with ADG408BRUZ, it delivers integrated ±25V fault protection and SPDT topology essential for redundant signal routing - eliminating external protection components and reducing BOM count.
Availability
MAX4632ESE-T is available at Aetrix Electronics and suitable for industrial process control, avionics signal conditioning, and redundant backup systems requiring stable component supply, long-term lifecycle support, and guaranteed fault-protection performance.
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 power management ICs for demanding industrial, automotive, and communications applications.
The MAX463x family was engineered specifically for high-reliability analog signal routing in environments prone to wiring faults and power transients - delivering integrated fault protection without sacrificing on-resistance or speed.
FAQ
What is the maximum fault voltage the MAX4632ESE-T can withstand on its NO_/NC_ pins?
The MAX4632ESE-T withstands up to ±25V on NO_/NC_ pins when powered with ±15V supplies. With power removed, it tolerates ±40V. Exceeding these limits - even briefly - risks permanent damage. The MAX4632ESE-T's fault protection is specific to NO_/NC_ terminals; COM_ and IN_ pins are not fault protected and must remain within V−–0.3V to V++0.3V.
Does the MAX4632ESE-T require power-supply sequencing during startup?
No, the MAX4632ESE-T does not require power-supply sequencing. Its internal architecture allows safe operation regardless of the ramp order of V+ and V−. This eliminates the need for external sequencing circuitry in systems where supply rails may power up at different rates - a critical advantage in industrial power distribution units using multiple isolated DC-DC converters.
Can the MAX4632ESE-T be used with a single +12V supply?
Yes, the MAX4632ESE-T operates from a single +12V supply when V− is tied to GND. In this configuration, the fault-protection range on NO_/NC_ is ±25V relative to GND, and the analog signal range extends from 0V to +12V. Logic thresholds remain TTL/CMOS-compatible, and on-resistance increases slightly versus ±15V dual-supply operation - verified at 125Ω max in single-supply mode per datasheet Table.
How does the MAX4632ESE-T behave during a fault condition?
When a NO_ or NC_ pin exceeds V+ or V− by ~50mV, the MAX4632ESE-T instantly disconnects that terminal from COM_ and clamps COM_ to the appropriate supply rail (V+ for overvoltage, V− for undervoltage). During clamping, the device sources or sinks up to 18mA while maintaining rail-aligned output - preventing downstream component damage and preserving signal integrity without glitching.
Is the MAX4632ESE-T pin-compatible with the DG403 analog switch?
Yes, the MAX4632ESE-T features identical pinout, signal mapping, and package dimensions to the DG403. However, only the NO_/NC_ pins inherit fault protection - COM_, IN_, V+, V−, and GND retain standard electrical behavior. Layout reuse is possible, but designers must verify that field-wiring transients are confined to NO_/NC_ nodes to fully leverage the MAX4632ESE-T's protection features.
MAX4632ESE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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-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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