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Analog Devices Inc./Maxim Integrated MAX4533CAP+T
- Part No.:
- MAX4533CAP+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
MAX4533CAP+T.pdf
- Description:
- IC SWITCH SPDT X 4 175OHM 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,666
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Product details
Overview
MAX4533CAP+T from Maxim Integrated is a quad SPDT analog switch with rail-to-rail signal handling, ±25V fault protection (power on) and ±40V fault protection (power off), 175Ω max on-resistance at ±15V supplies, and TTL/CMOS-compatible logic inputs-designed for high-reliability signal routing in test equipment and industrial data-acquisition systems.
For engineers reviewing the MAX4533CAP+T datasheet, MAX4533CAP+T pinout, MAX4533CAP+T application, or MAX4533CAP+T equivalent, this page delivers verified specifications, fault-protection behavior under dual/single supply operation, real-world leakage and timing performance across temperature, and validated alternative options for redundant system design.
Technical Context
The MAX4533CAP+T implements a parallel N-channel/P-channel MOSFET architecture per channel, enabling rail-to-rail conduction while maintaining low on-resistance (125Ω typ) and eliminating dead zones near supply rails. Its integrated voltage-sensing comparators monitor NO_/NC_ terminals continuously against V+ and V−.
During overvoltage faults, the switch disconnects the COM_ terminal within 20ns (typ), clamps COM_ to the appropriate supply rail via dedicated clamp FETs (N2/P2), and limits output current to ±10mA-ensuring downstream circuit protection without signal polarity ambiguity or transition glitches.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (max) | 175Ω at ±15V supplies - ensures minimal signal attenuation and thermal drift in precision analog paths |
| Fault Protection | ±25V with power on, ±40V with power off - protects connected instrumentation during hot-swap or wiring errors |
| Supply Range | Dual ±4.5V to ±18V or single +9V to +36V - supports legacy ±15V test gear and modern wide-input industrial rails |
| Off-Leakage Current | 0.5nA at +25°C - preserves accuracy in high-impedance sensor front-ends and battery-powered portable instruments |
| Fault Response Time | 20ns typical - enables reliable protection against fast transients in communications and avionics signal chains |
| Logic Thresholds | +0.8V low / +2.4V high - guarantees interoperability with both TTL and CMOS drivers across full supply range |
| Break-Before-Make Delay | 2.5µs - prevents momentary shorting between NC and NO paths during channel switching |
Pinout & Package
MAX4533CAP+T is packaged in a 20-pin SSOP (Shrink Small Outline Package) with 0.65mm lead pitch, rated for 0°C to +70°C operation. The package provides compact footprint and thermal performance suitable for dense PCB layouts in portable and rack-mounted test systems.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 10, 11, 20 | IN1–IN4 | Digital control inputs; drive internal level translators to switch NO/NC paths |
| 2, 9, 12, 19 | NO1–NO4 | Normally open analog inputs; fault-protected up to ±40V (power off) |
| 3, 8, 13, 18 | COM1–COM4 | Common analog outputs; clamped to V+ or V− during fault conditions |
| 4, 7, 14, 17 | NC1–NC4 | Normally closed analog inputs; fault-protected identically to NO pins |
| 5 | V− | Negative analog supply input; sets lower rail for signal swing and clamp reference |
| 6 | GND | Digital ground reference; isolated from analog signal paths except for ESD diodes |
| 15 | N.C. | No internal connection; must remain unconnected per datasheet |
| 16 | V+ | Positive analog/digital supply input; powers logic, level translators, and clamp circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Full conduction from V− to V+ without distortion or increased RON near rails - critical for ±10V instrumentation signals |
| Output clamping during fault | COM_ actively clamped to V+ or V− with ≤1kΩ resistance - prevents latch-up or damage to downstream ADCs or amplifiers |
| No power-supply sequencing required | Safe startup/shutdown with arbitrary V+/V− ramp order - simplifies power management in multi-rail systems |
| All switches off with power off | High-impedance isolation maintained when V+/V− = 0 - eliminates unintended signal coupling in standby mode |
| Pin compatibility with MAX333/MAX333A | Direct drop-in replacement for legacy designs - reduces redesign effort and qualification time |
Applications
| Redundant/Backup Systems | Test Equipment |
|---|---|
Use Scenario: Signal path selection between primary and backup sensor channels in flight control computers. IC Role / Device Role / Timing Role: Quad SPDT switch routing analog sensor outputs while maintaining fault isolation between channels. Use Value: ±40V fault tolerance with power off prevents single-point failure during cold-swap of modules. |
Use Scenario: Multiplexing DUT signals into automated test equipment (ATE) measurement front-ends. IC Role / Device Role / Timing Role: High-accuracy analog switch enabling sequential probing of multiple test points without cross-talk. Use Value: 62dB off-isolation and 175Ω max RON preserve signal integrity for 16-bit DAC/ADC validation. |
| Data-Acquisition Systems | Industrial Process Control |
Use Scenario: Channel scanning in modular PLC analog input cards handling 4–20mA and ±10V field signals. IC Role / Device Role / Timing Role: Fault-protected multiplexer isolating field wiring faults from sensitive acquisition circuitry. Use Value: ±25V fault protection with power on withstands induced surges on long industrial cables. |
Use Scenario: Signal conditioning and routing in distributed I/O modules deployed in chemical plant control cabinets. IC Role / Device Role / Timing Role: Robust analog switch managing redundant sensor inputs and actuator feedback loops. Use Value: -40°C to +85°C extended temperature variants available; MAX4533CAP+T supports 0°C to +70°C ambient operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4533CWP+ | Same electrical specs; packaged in 20-pin Wide SO instead of SSOP - 1.27mm pitch vs. 0.65mm | Better thermal dissipation and hand-solderability; less space-efficient for high-density layouts | Select for prototyping, manual assembly, or thermal-limited environments where SSOP reflow is challenging |
| ADG1434BRUZ | Quad SPDT, ±15V supply, 4.7Ω RON (lower), but only ±15.5V fault protection (power on); no ±40V power-off rating | Lacks extended fault margin for maintenance scenarios involving live-wire disconnection | Choose when ultra-low on-resistance is prioritized over worst-case fault survivability during service |
Compared with MAX4533CWP+, the MAX4533CAP+T offers superior board-area efficiency in automated SMT lines; compared with ADG1434BRUZ, it delivers significantly higher fault resilience essential for safety-critical instrumentation and field-deployed systems.
Availability
MAX4533CAP+T is available at Aetrix Electronics and suitable for test equipment, industrial process control, and redundant/backup systems requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX4533CAP+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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, and communications markets.
The MAX4533 product line delivers fault-protected analog switching for mission-critical signal routing where reliability under overvoltage stress is non-negotiable - targeting test instrumentation, avionics, and process automation.
FAQ
What is the maximum fault voltage the MAX4533CAP+T can withstand with power applied?
The MAX4533CAP+T withstands ±25V on NO_ or NC_ terminals when power is applied (V+ and V− active). This rating applies with ±15V supplies; exceeding ±25V risks permanent damage even with brief exposure. The device's internal comparators detect overvoltage within nanoseconds and isolate COM_ while clamping its output to the nearest supply rail.
Does the MAX4533CAP+T support single-supply operation, and what is the valid voltage range?
Yes, the MAX4533CAP+T operates from a single +9V to +36V supply with V− tied to GND. At +12V supply, on-resistance rises to 390Ω max, and fault protection remains ±25V (power on) and ±40V (power off). Logic thresholds remain TTL/CMOS-compatible, with VIN_H = +2.4V and VIN_L = +0.8V confirmed across the full single-supply range.
How does the MAX4533CAP+T behave during power-down, and is signal isolation maintained?
When V+ and V− are removed, all four switches enter a high-impedance state with <1nA leakage - ensuring complete analog isolation. NO_ and NC_ retain ±40V fault protection even with zero supply, preventing damage from accidental field-wiring faults during maintenance. COM_ terminals float safely without clamping until power is restored.
What is the on-resistance matching between channels in the MAX4533CAP+T, and why does it matter?
The MAX4533CAP+T guarantees ≤10Ω max on-resistance mismatch (∆RON) between any two channels at ±15V supplies. This tight matching ensures consistent gain and offset across multiplexed sensor channels in data-acquisition systems, minimizing calibration drift and enabling ratiometric measurements without per-channel compensation.
Is the MAX4533CAP+T pin-compatible with the MAX333A, and are there any layout considerations?
Yes, the MAX4533CAP+T is fully pin-compatible with the MAX333 and MAX333A in the 20-pin SSOP package. No PCB changes are required for drop-in replacement. However, due to improved fault-protection architecture and lower RON, users should verify that existing decoupling and thermal relief meet the slightly higher peak current capability (±10mA clamp output) of the MAX4533CAP+T.
MAX4533CAP+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:
- 4
- On-State Resistance (Max):
- 175Ohm
- Channel-to-Channel Matching (ΔRon):
- 1Ohm
- Voltage - Supply, Single (V+):
- 9V ~ 36V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 18V
- Switch Time (Ton, Toff) (Max):
- 250ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1.5pC
- Channel Capacitance (CS(off), CD(off)):
- 5pF
- Current - Leakage (IS(off)) (Max):
- 20nA
- Crosstalk:
- -66dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SSOP
MAX4533CAP+T FAQ
1.How can I place an order for MAX4533CAP+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4533CAP+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 MAX4533CAP+T reliable?
The price and inventory of MAX4533CAP+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4533CAP+T is usually 5 days.
3.What payment methods are accepted for MAX4533CAP+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4533CAP+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4533CAP+T?
MAX4533CAP+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4533CAP+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 MAX4533CAP+T?
For technical support, including MAX4533CAP+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4533CAP+T requirements.
6.How does Aetrix verify that MAX4533CAP+T is sourced from the original manufacturer or authorized distributors?
All MAX4533CAP+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 MAX4533CAP+T meets industry standards.
7.What is the process for return or replacement of MAX4533CAP+T?
All MAX4533CAP+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4533CAP+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 MAX4533CAP+T part is unused and in its original packaging.
Return procedure for MAX4533CAP+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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