My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX4533EAP-T
- Part No.:
- MAX4533EAP-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
MAX4533EAP-T.pdf
- Description:
- IC SWITCH SPDT X 4 175OHM 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,841
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX4533EAP-T from Maxim Integrated is a quad SPDT analog switch with rail-to-rail signal handling, ±25V fault protection (power on) and ±40V (power off), 175Ω max on-resistance at ±15V, and TTL/CMOS-compatible logic inputs - used in test equipment and industrial data-acquisition systems where overvoltage resilience and signal integrity across supply rails are critical.
For engineers reviewing the MAX4533EAP-T datasheet, MAX4533EAP-T pinout, MAX4533EAP-T application, or MAX4533EAP-T equivalent, key selection criteria include fault-protection voltage limits, COM/NO/NC terminal behavior during overvoltage, dual/single-supply flexibility (+9V to +36V or ±4.5V to ±18V), and verified 20-pin SSOP package compatibility with legacy MAX333 designs.
Technical Context
The MAX4533EAP-T implements parallel N- and P-channel MOSFETs per channel with dedicated voltage-sensing circuitry to enable rail-to-rail conduction and fast fault response (20ns typical). Its internal clamp structure (N2/P2) actively limits COM_ output to V+ or V− during overvoltage, delivering up to ±10mA load current without transition glitches.
Fault detection relies on comparators monitoring NO_/NC_ against V+/V−; when input exceeds rails by ~150mV, the main switch (N1/P1) turns off and clamp FETs engage. Recovery time is 2.5µs (positive fault) and 1.3µs (negative fault), dependent on COM_ load resistance and capacitance - not fault amplitude.
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 (power on) | ±25V on NO_/NC_ pins - protects downstream circuitry from transient overvoltages while powered |
| Fault protection (power off) | ±40V on NO_/NC_ pins - enables safe hot-swap or maintenance of unpowered systems |
| Supply range | ±4.5V to ±18V dual or +9V to +36V single - supports wide industrial and avionics supply architectures |
| Logic thresholds | +0.8V low / +2.4V high - guarantees interoperability with TTL and CMOS drivers across full supply range |
| Off-leakage (25°C) | 0.5nA on NO_/NC_ - preserves accuracy in high-impedance sensor and measurement circuits |
| Fault response time | 20ns typical - prevents damaging energy transfer during fast transients like ESD or inductive kickback |
Pinout & Package
MAX4533EAP-T is packaged in a 20-pin SSOP (Shrink Small Outline Package) with 0.65mm pitch, RoHS-compliant, rated for -40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 10, 11, 20 (IN1–IN4) | Digital control inputs | Accept TTL/CMOS logic; drive internal switch gates and fault-sense circuitry |
| 2, 9, 12, 19 (NO1–NO4) | Normally open analog terminals | Fault-protected; connect to COM_ only when corresponding IN_ = logic high |
| 3, 8, 13, 18 (COM1–COM4) | Analog common outputs | Not fault-protected; clamped to V+ or V− during overvoltage; bidirectional in normal operation |
| 4, 7, 14, 17 (NC1–NC4) | Normally closed analog terminals | Fault-protected; connect to COM_ only when corresponding IN_ = logic low |
| 5 (V−) | Negative analog supply | Bias for P-channel FETs and fault-sense comparators; must be connected for proper operation |
| 6 (GND) | Digital ground reference | Reference for logic inputs and internal level translators; isolated from analog signal path |
| 15 (N.C.) | No connection | Not internally bonded; must remain unconnected on PCB |
| 16 (V+) | Positive analog/digital supply | Supplies N-channel FETs, logic core, and level translators; sets logic thresholds |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Enables full dynamic range utilization across V− to V+ without clipping or distortion in data-acquisition front-ends |
| Output clamping during fault | Prevents undefined COM_ voltage states by forcing output to V+ or V−, eliminating latch-up risk in connected ADCs or amplifiers |
| No power-supply sequencing required | Allows independent ramp-up/down of V+ and V− supplies - simplifies power management in multi-rail systems |
| Break-before-make switching | Guarantees no momentary short between NO_ and NC_ during state transitions - avoids signal corruption in multiplexed sensor arrays |
| Pin compatibility with MAX333/MAX333A | Enables drop-in replacement in existing designs without layout changes or firmware updates |
Applications
| Redundant Signal Routing | Portable Test Instrumentation |
|---|---|
Use Scenario: Dual-path analog signal routing in avionics or medical devices where primary and backup channels must isolate faults without system interruption. IC Role / Device Role / Timing Role: Quad SPDT switch selects between redundant sensor inputs or actuator outputs while maintaining fault containment per channel. Use Value: ±40V fault tolerance with power off allows safe field servicing; rail-to-rail operation preserves signal fidelity across ±10V sensor ranges. | Use Scenario: Channel multiplexing in handheld multimeters or portable oscilloscopes requiring high-voltage isolation and low leakage. IC Role / Device Role / Timing Role: Analog switch routes DMM input stages or scope probe signals under microcontroller control. Use Value: 0.5nA off-leakage at 25°C minimizes measurement error in high-Z voltage measurements; 20ns fault response prevents damage from accidental probe contact with live circuits. |
| Industrial Data Acquisition | Communications System Protection |
Use Scenario: Multiplexing thermocouple, RTD, and voltage inputs in PLC analog I/O modules exposed to noisy factory environments. IC Role / Device Role / Timing Role: Front-end switch isolates sensitive ADC inputs from field wiring transients and ground loops. Use Value: ±25V fault protection with ±15V supplies matches industrial 24V system margins; 175Ω on-resistance adds <0.01% gain error in 12-bit systems. | Use Scenario: Protecting line interface ICs (e.g., RS-485 transceivers) from induced surges on long cable runs in building automation networks. IC Role / Device Role / Timing Role: Fault-protected switch inserts between transceiver and connector to shunt overvoltage to rails before it reaches PHY layer. Use Value: COM_ clamp delivers ±10mA during fault - sufficient to sink surge currents without external TVS; 1kΩ clamp resistance limits fault current to safe levels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX333ACPP+ | Lower fault protection (±15V power on), 350Ω max RON, 0°C to +70°C temp range | Suitable for cost-sensitive commercial-grade instruments without harsh ESD requirements | Select when budget constraints outweigh need for extended temperature or enhanced fault margin |
| ADG1414BRUZ | Higher RON flatness (1.5Ω), no integrated fault clamping, requires external protection circuitry | Better suited for precision instrumentation where ultra-low distortion matters more than fault resilience | Choose when system-level protection (TVS, current limiting) is already implemented and sub-ohm matching is critical |
Compared with MAX333ACPP+ and ADG1414BRUZ, the MAX4533EAP-T uniquely combines industry-standard pinout, integrated ±40V fault protection with power off, and rail-to-rail operation - making it optimal for ruggedized industrial and avionics signal routing where reliability trumps marginal RON improvement.
Availability
MAX4533EAP-T is available at Aetrix Electronics and suitable for industrial data acquisition, portable test instrumentation, and redundant signal routing requiring stable component supply and guaranteed long-term availability.
Supply support for MAX4533EAP-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 MAX4533EAP-T belongs to Maxim's fault-protected analog switch family, engineered specifically for systems where analog signal integrity must be preserved despite exposure to field-induced overvoltages and supply interruptions.
FAQ
What is the operating temperature range of the MAX4533EAP-T?
The MAX4533EAP-T is specified for operation from -40°C to +85°C, validated across this full industrial temperature range for parameters including on-resistance, leakage current, and fault response time. This rating applies specifically to the E-grade SSOP variant (MAX4533EAP-T), distinguishing it from C-grade (0°C to +70°C) and M-grade (-55°C to +125°C) versions. Thermal derating curves for power dissipation are provided in the datasheet for design margining.
Does the MAX4533EAP-T require power-supply sequencing?
No, the MAX4533EAP-T does not require power-supply sequencing. Its architecture allows V+ and V− supplies to be powered up or down in any order, and the device remains functional and fault-protected throughout. This eliminates the need for external sequencing circuitry in multi-rail systems - a key advantage over older analog switches that mandate strict V+ before V− startup.
How does the MAX4533EAP-T behave during an overvoltage fault on NO_ or NC_?
During an overvoltage fault on NO_ or NC_, the MAX4533EAP-T disconnects the affected channel (NO_/NC_ to COM_) and clamps COM_ to the appropriate supply rail (V+ for positive faults, V− for negative faults), delivering up to ±10mA. Leakage drops to nanoamperes, and the clamp resistance is 1kΩ typical - ensuring predictable, non-destructive behavior without glitching the output signal.
Is the MAX4533EAP-T pin-compatible with the MAX333A?
Yes, the MAX4533EAP-T is explicitly designed as a pin-compatible upgrade to the MAX333 and MAX333A. All 20 pins match function-for-function, including IN_, NO_, COM_, NC_, V+, V−, GND, and N.C. This allows direct replacement in existing layouts without PCB modification, while delivering improved fault protection (±40V vs. ±15V), lower on-resistance (175Ω vs. 350Ω), and rail-to-rail operation.
Can the MAX4533EAP-T operate from a single supply?
Yes, the MAX4533EAP-T supports single-supply operation from +9V to +36V with V− tied to GND. In this configuration, the fault-protected analog signal range becomes 0V to V+, and logic thresholds remain TTL/CMOS-compatible. On-resistance increases slightly (e.g., 390Ω max at +12V), but rail-to-rail functionality and ±40V fault protection with power off are fully retained.
MAX4533EAP-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:
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SSOP
MAX4533EAP-T FAQ
1.How can I place an order for MAX4533EAP-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4533EAP-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 MAX4533EAP-T reliable?
The price and inventory of MAX4533EAP-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4533EAP-T is usually 5 days.
3.What payment methods are accepted for MAX4533EAP-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4533EAP-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4533EAP-T?
MAX4533EAP-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4533EAP-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 MAX4533EAP-T?
For technical support, including MAX4533EAP-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4533EAP-T requirements.
6.How does Aetrix verify that MAX4533EAP-T is sourced from the original manufacturer or authorized distributors?
All MAX4533EAP-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 MAX4533EAP-T meets industry standards.
7.What is the process for return or replacement of MAX4533EAP-T?
All MAX4533EAP-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4533EAP-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 MAX4533EAP-T part is unused and in its original packaging.
Return procedure for MAX4533EAP-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX4533EAP-T 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…
