My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4633CSE
- Part No.:
- MAX4633CSE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4633CSE.pdf
- Description:
- IC SWITCH DPST-NOX2 85OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,472
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX4633CSE from Maxim Integrated is a fault-protected, high-voltage dual analog switch with double-pole/single-throw (DPST) configuration. It features ±36V fault protection on NO/NC terminals with power applied, 85Ω max on-resistance at +25°C, rail-to-rail signal handling, and operates from ±4.5V to ±18V dual supplies or +9V to +36V single supply. It is used in industrial process control systems where overvoltage transients threaten downstream circuitry.
For engineers reviewing the MAX4633CSE datasheet, MAX4633CSE pinout, MAX4633CSE application, or MAX4633CSE equivalent, key selection criteria include fault-protection voltage limits (±36V), dual-supply compatibility, DPST topology for isolated channel pairing, low off-leakage (0.5nA at +25°C), and pin compatibility with DG401/DG403/DG405 legacy switches.
Technical Context
The MAX4633CSE implements a parallel N-channel/P-channel MOSFET switch architecture with integrated voltage-sensing comparators on each NO/NC terminal. During normal operation, it delivers bidirectional rail-to-rail conduction with matched on-resistance (≤6Ω between channels). When input voltage exceeds V+ or V− by ~50mV, internal sensing circuitry forces the switch open and clamps COM output to the appropriate supply rail.
Fault response is asymmetric: transient overvoltage causes sub-10ns clamp activation, but recovery after fault removal takes ~2.5µs due to COM node RC time constant. The device requires no power-supply sequencing and remains fully off with all supplies at 0V - critical for hot-swap and power-up safety in ATE and avionics systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Double-pole/single-throw (DPST) - two independent SPST switches per package, enabling isolated dual-channel routing without crosstalk coupling. |
| Fault Protection | ±36V on NO/NC pins with ±15V supplies - protects connected loads during power-up/down or field-induced transients without latch-up or damage. |
| On-Resistance | 85Ω max at +25°C, ±15V supplies - ensures minimal signal attenuation and thermal drift in precision sensor multiplexing paths. |
| Off-Leakage Current | 0.5nA max at +25°C - preserves accuracy in high-impedance data acquisition front-ends (e.g., thermocouple or strain gauge interfaces). |
| Supply Range | ±4.5V to ±18V dual or +9V to +36V single - supports wide industrial input rails and simplifies system-level power architecture. |
| Logic Compatibility | TTL/CMOS inputs with 0.8V/2.4V thresholds at ±15V - enables direct interfacing with microcontrollers and FPGAs without level-shifting. |
| Turn-On/Off Time | 150ns/400ns max at ±15V - suitable for moderate-speed switching in automated test equipment and redundant backup signal paths. |
Pinout & Package
MAX4633CSE is housed in a 16-pin narrow SO (Small Outline) package with 1.27mm pitch, JEDEC MS-012AC compliant, and rated for 0°C to +70°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | COM1, COM2 | Common analog terminals for both DPST channels - bidirectional, rail-to-rail capable, not fault-protected. |
| 2, 7, 12 | N.C. | No internal connection - must be left unconnected; no routing or grounding required. |
| 3, 6 | NO1, NO2 | Fault-protected normally-open analog inputs - withstand ±36V faults with power applied; open-circuit during fault. |
| 4, 5 | NO3, NO4 | Fault-protected normally-open analog inputs for second DPST pair - electrically identical to pins 3/6, enabling dual independent switching paths. |
| 9, 16 | NO1, NO2 | Redundant NO terminal assignments - same as pins 3/6; confirms DPST layout symmetry in SO package. |
| 10, 15 | IN1, IN2 | Digital control inputs - TTL/CMOS compatible; drive internal logic translators to switch gate drivers. |
| 11 | V+ | Positive supply input - powers internal logic and P-channel gate drivers; sets high-threshold logic level. |
| 13 | GND | Ground reference - connects to internal logic and ESD protection diodes; separate from analog signal ground path. |
| 14 | V− | Negative supply input - powers N-channel gate drivers; determines low-threshold logic level and on-resistance. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail Signal Handling | Supports analog signals from V− to V+ on NO/NC pins - eliminates clipping in ±10V industrial sensor interfaces and full-scale DAC outputs. |
| Fault-Protected Inputs | NO/NC pins survive ±36V faults with ±15V supplies - prevents catastrophic failure in avionics I/O modules exposed to lightning-induced surges. |
| No Power-Supply Sequencing Required | Operates safely with any supply ramp order - removes startup timing constraints in multi-rail embedded controllers and modular instrumentation. |
| All Switches Off with Power Off | Guaranteed open-circuit state when V+ = V− = 0V - blocks unintended signal leakage during system standby or brownout conditions. |
| Pin Compatible with DG401/DG403/DG405 | Direct PCB footprint replacement for legacy non-fault-protected switches - reduces redesign effort while upgrading protection level. |
Applications
| Industrial Process Control | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: Multiplexing 4–20mA current-loop sensors across multiple PLC analog inputs under noisy factory environments. IC Role / Device Role / Timing Role: DPST analog switch isolating two independent sensor channels while rejecting common-mode transients up to ±36V. Use Value: Prevents sensor signal corruption and downstream ADC damage during ESD events or cable fault conditions. |
Use Scenario: Routing calibration references and DUT signals in semiconductor wafer probers with fast-switching requirements. IC Role / Device Role / Timing Role: High-voltage analog switch enabling safe signal path reconfiguration during power-up and fault recovery sequences. Use Value: Eliminates need for external TVS diodes and relay-based isolation, reducing test head size and maintenance cost. |
| Avionics Data Acquisition | Redundant Backup Systems |
Use Scenario: Selecting between primary and backup air data sensors (pitot/static) in flight control computers. IC Role / Device Role / Timing Role: Fault-tolerant DPST switch ensuring uninterrupted analog signal continuity during lightning-induced overvoltages. Use Value: Maintains certified fail-operational behavior without requiring redundant switch ICs or complex monitoring circuitry. |
Use Scenario: Cross-connecting dual-redundant power supply monitor lines in telecom rectifier shelves. IC Role / Device Role / Timing Role: Isolating backup monitoring circuits during main supply faults while preserving signal integrity. Use Value: Enables seamless switchover with <2.5µs recovery delay, meeting ITU-T L.422 reliability standards for DC distribution systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4632CSE | SPDT topology (NO/NC per channel) vs. MAX4633CSE's DPST; ±25V fault protection (not ±36V); same package and pinout. | Used where channel polarity inversion or break-before-make timing is required - e.g., H-bridge control or relay emulation. | Select MAX4632CSE only if NC functionality is needed; otherwise MAX4633CSE provides superior fault margin and simpler routing. |
| ADG465BRUZ | Single SPST, ±20V fault rating, 44Ω typical RON, 16-TSSOP package - not pin-compatible; lacks DPST structure. | Suitable for lower-voltage, single-channel applications where space is constrained and ±36V protection is unnecessary. | Choose ADG465BRUZ only for cost-sensitive, single-path designs; MAX4633CSE remains optimal for dual-channel, high-fault-margin industrial use. |
Compared with MAX4632CSE and ADG465BRUZ, the MAX4633CSE uniquely delivers DPST isolation with ±36V fault tolerance in a legacy-compatible SO package - making it the only option for retrofitting dual-channel, high-reliability signal routing without board redesign.
Availability
MAX4633CSE is available at Aetrix Electronics and suitable for industrial process control, automated test equipment, and avionics data acquisition requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX4633CSE 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 interface ICs for demanding industrial, automotive, and aerospace applications.
The MAX463x family was engineered specifically for fault-tolerant analog signal routing in harsh environments - prioritizing overvoltage resilience, rail-to-rail performance, and drop-in upgrade capability for legacy CMOS switch users.
FAQ
What is the maximum fault voltage the MAX4633CSE can withstand on its NO/NC pins?
The MAX4633CSE withstands ±36V on NO/NC pins when powered with ±15V supplies, and ±40V when all supplies are at 0V. Exceeding these limits - even briefly - risks permanent damage. This specification is confirmed in the Absolute Maximum Ratings table and Electrical Characteristics section of the MAX4633CSE datasheet under "Fault-Protected Analog Signal Range."
Is the MAX4633CSE pin-compatible with the DG401 series?
Yes, the MAX4633CSE has identical pinout and footprint to the DG401, DG403, and DG405. However, only the NO/NC pins are fault-protected - COM, IN, V+, V−, and GND retain standard electrical behavior. This allows direct PCB replacement, but designers must verify that fault exposure is limited to NO/NC nodes per the MAX4633CSE datasheet guidance.
Does the MAX4633CSE support single-supply operation?
Yes, the MAX4633CSE operates from a single +9V to +36V supply with V− tied to GND. In this mode, it maintains ±36V fault protection on NO/NC pins and retains rail-to-rail signal handling. Logic thresholds remain TTL/CMOS compatible, and on-resistance increases slightly versus dual-supply operation - detailed in the Single-Supply Electrical Characteristics tables of the MAX4633CSE datasheet.
What is the on-resistance matching between the two DPST channels of the MAX4633CSE?
The MAX4633CSE guarantees ≤6Ω maximum on-resistance mismatch (∆RON) between its two DPST channels at +25°C with ±15V supplies. This tight matching ensures balanced gain and phase response in differential signal paths, such as dual-channel sensor conditioning or matched filter banks, as verified in the Electrical Characteristics table under "On-Resistance Match Between Channels."
How does the MAX4633CSE behave during power-down?
During power-down (V+ = V− = 0V), the MAX4633CSE enters a fully off state: all switches open, NO/NC pins tolerate ±40V faults, and COM outputs float with nanoampere leakage. This behavior is intrinsic to its architecture - confirmed in the "All Switches Off with Power Off" feature and Absolute Maximum Ratings - and eliminates signal leakage in standby or fault-isolation modes.
MAX4633CSE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- DPST - NO
- 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
MAX4633CSE FAQ
1.How can I place an order for MAX4633CSE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4633CSE 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 MAX4633CSE reliable?
The price and inventory of MAX4633CSE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4633CSE is usually 5 days.
3.What payment methods are accepted for MAX4633CSE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4633CSE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4633CSE?
MAX4633CSE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4633CSE 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 MAX4633CSE?
For technical support, including MAX4633CSE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4633CSE requirements.
6.How does Aetrix verify that MAX4633CSE is sourced from the original manufacturer or authorized distributors?
All MAX4633CSE 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 MAX4633CSE meets industry standards.
7.What is the process for return or replacement of MAX4633CSE?
All MAX4633CSE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4633CSE, 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 MAX4633CSE part is unused and in its original packaging.
Return procedure for MAX4633CSE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4633CSE Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
