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Analog Devices Inc./Maxim Integrated MAX4501CUK+T
- Part No.:
- MAX4501CUK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4501CUK+T.pdf
- Description:
- IC SW SPST-NOX1 250OHM SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,028
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Product details
Overview
MAX4501CUK+T from Maxim Integrated is a single-pole/single-throw (SPST), normally-open (NO), low-voltage CMOS analog switch operating from +2V to +12V single supply. It supports rail-to-rail analog signal switching, delivers 250Ω on-resistance at +5V, exhibits 1nA off-leakage at +25°C, and features 75ns turn-on time - enabling precision signal routing in portable audio and battery-powered data-acquisition systems.
For engineers reviewing the MAX4501CUK+T datasheet, MAX4501CUK+T pinout, MAX4501CUK+T application, or MAX4501CUK+T equivalent, key selection criteria include guaranteed on-resistance over temperature, ultra-low leakage across voltage and temperature ranges, TTL/CMOS logic compatibility at +5V, and SOT23-5 footprint suitability for space-constrained PCB layouts.
Technical Context
The MAX4501CUK+T implements a CMOS transmission-gate architecture with dual ESD diodes per analog terminal (to V+ and GND), enabling rail-to-rail signal handling while defining leakage paths strictly between signal pins and supply rails - not between COM/NO terminals. Its logic-level translator ensures stable switching control across supply voltages from +2V to +12V, with input thresholds scaling from 0.8V/2.4V at +5V to ~0.8V/5.0V at +12V.
Switching dynamics are governed by charge injection (10pC typical) and channel capacitance (3pF NO/NC off-capacitance, 8pF COM on-capacitance), resulting in 75ns tON and 50ns tOFF into 1kΩ/35pF loads. Off-isolation exceeds –100dB at 100kHz, degrading predictably with frequency due to capacitive coupling in the off-state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2V to +12V single supply - enables direct integration with Li-ion, 3.3V, and 5V systems without level-shifting. |
| On-Resistance (RON) | 250Ω max at +5V, +25°C - ensures minimal signal attenuation and gain error in precision sensor or audio paths. |
| Off-Leakage Current | 1nA max at +25°C, 10nA max at +85°C - preserves accuracy in high-impedance measurement circuits (e.g., pH sensors, thermocouples). |
| Charge Injection | 10pC typical - limits voltage glitch on sampled-hold nodes, critical for ADC front-end multiplexing. |
| Switching Speed | tON = 75ns, tOFF = 50ns - supports multiplexing of audio-band and low-speed digital signals without timing bottlenecks. |
| Logic Compatibility | 0.8V/2.4V thresholds at +5V - interfaces directly with standard TTL and CMOS outputs without external biasing. |
| Analog Signal Range | Rail-to-rail (GND to V+) - accommodates full-scale signals in both unipolar and bipolar-referenced designs. |
Pinout & Package
MAX4501CUK+T is housed in a 5-pin SOT23-5 package (JEDEC MO-178AA), with exposed pad omitted. Pin 1 is marked via laser top-side marking (AAAA). The package supports reflow soldering per JEDEC J-STD-020D and has a thermal resistance θJA of 210°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - V+ | Positive supply rail | Powers internal CMOS switches and logic translators; sets analog signal ceiling (GND to V+). |
| 2 - NO | Normally-open analog terminal | Open-circuit path to COM when IN = LOW; bidirectional signal path with identical RON and COFF. |
| 3 - IN | Digital control input | Active-HIGH logic input; drives internal gate with rail-referenced CMOS levels (no external pull-up required). |
| 4 - GND | Ground reference | Analog and digital common return; ESD diodes connect all signal pins to this node and V+. |
| 5 - COM | Common analog terminal | Shared connection point for NO (or NC in MAX4502); bidirectional, symmetric with respect to NO/NC. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog operation | Supports full V+ to GND signal swing without clipping or distortion - essential for wide-dynamic-range sensor interfaces. |
| Guaranteed 250Ω RON | Specified over temperature and supply voltage - enables predictable gain and offset calibration in production test. |
| 1nA off-leakage at +25°C | Minimizes DC error in high-Z sample-and-hold or instrumentation amplifier inputs - critical for µV-level measurements. |
| 75ns turn-on time | Enables >10MHz multiplexing of audio or control signals with deterministic settling - avoids inter-channel crosstalk in fast-switching applications. |
| SOT23-5 footprint | 0.95mm × 1.6mm body size - saves board area in portable devices like cellular handsets and PCMCIA peripherals. |
Applications
| Portable Audio Routing | Battery-Powered Data Acquisition |
|---|---|
Use Scenario: Switching microphone inputs, headphone outputs, or line-level signals in smartphones and Bluetooth headsets. IC Role / Device Role / Timing Role: SPST analog switch controlling signal path connectivity under microcontroller GPIO control. Use Value: Rail-to-rail operation preserves full audio dynamic range; 250Ω RON avoids insertion loss in 10kΩ audio impedance environments. |
Use Scenario: Multiplexing thermistor, RTD, or pH electrode signals into a single ADC channel in handheld test equipment. IC Role / Device Role / Timing Role: Low-leakage analog switch isolating high-impedance sensor nodes during sampling intervals. Use Value: 1nA off-leakage prevents >1mV DC error across 1MΩ sensor sources - maintaining sub-16-bit measurement integrity. |
| PCMCIA Card Signal Management | Low-Voltage Communications Interface |
Use Scenario: Enabling/disabling I/O lines (e.g., UART, SPI) on hot-pluggable PCMCIA cards to prevent bus contention during insertion/removal. IC Role / Device Role / Timing Role: Voltage-tolerant analog switch decoupling peripheral logic from host bus before power sequencing completes. Use Value: +2V to +12V operation matches PCMCIA 3.3V/5V dual-supply requirements; 50ns tOFF ensures clean bus release prior to reset assertion. |
Use Scenario: Isolating RS-232 or RS-485 transceiver enable lines and data paths in industrial modems operating from 3.3V or 5V rails. IC Role / Device Role / Timing Role: Logic-controlled analog switch providing galvanic separation between transceiver and baseband processor. Use Value: TTL/CMOS-compatible input eliminates need for level shifters; 10pC charge injection prevents false edge triggering on sensitive enable inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG801BRMZ-REEL | Lower RON (0.3Ω typ), but only rated for +1.8V to +5.5V supply; 0.5pC charge injection. | Preferred for ultra-low-RON 3.3V systems; unsuitable for 9V/12V battery or industrial supplies. | Select ADG801BRMZ-REEL only if supply is ≤5.5V and sub-1Ω RON is mandatory - not a drop-in replacement for MAX4501CUK+T's wider voltage range. |
| TS5A23157DCUR | Higher RON (850Ω max at +3.3V), wider -40°C to +85°C temp grade, same SOT23-6 pinout (different pin mapping). | Better suited for cost-sensitive consumer electronics where leakage <10nA at +85°C suffices. | TS5A23157DCUR requires PCB layout revision due to different pinout and higher RON; use only when extended temperature range outweighs on-resistance penalty. |
Compared with ADG801BRMZ-REEL and TS5A23157DCUR, the MAX4501CUK+T uniquely balances 2–12V operation, 250Ω RON, and 1nA leakage - making it the only option among the three viable for mixed-voltage portable systems requiring guaranteed performance across automotive-grade temperature extremes without redesign.
Availability
MAX4501CUK+T is available at Aetrix Electronics and suitable for battery-operated equipment, audio/video signal routing, and low-voltage data-acquisition systems requiring stable component supply across industrial and consumer production cycles.
Supply support for MAX4501CUK+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, medical, and communications applications.
The MAX4501CUK+T belongs to Maxim's low-voltage analog switch product line, engineered specifically for rail-to-rail signal integrity, ultra-low leakage, and robust logic interfacing in portable and energy-constrained systems.
FAQ
What is the maximum supply voltage rating for the MAX4501CUK+T?
The MAX4501CUK+T has an absolute maximum V+ rating of +13V, but its specified operational range is +2V to +12V. Operation above +12V risks exceeding electrical specifications and may cause permanent damage. For reliable long-term performance, maintain V+ within +2V to +12V, with derating applied per thermal limits in the datasheet.
Does the MAX4501CUK+T support bidirectional analog signal flow?
Yes, the MAX4501CUK+T supports fully bidirectional analog signal flow between COM and NO terminals. Its CMOS transmission-gate structure imposes no directionality - signal integrity, RON, and leakage are identical regardless of whether the source is connected to COM or NO, enabling flexible PCB routing in multiplexer and protection applications.
What is the guaranteed on-resistance specification for MAX4501CUK+T at +12V supply?
At +12V supply and +25°C, the MAX4501CUK+T guarantees a maximum on-resistance (RON) of 200Ω. This value increases with temperature and decreases slightly at lower V+, but the 200Ω limit ensures predictable insertion loss in high-voltage analog paths such as industrial sensor conditioning or legacy telecom interfaces.
Can the MAX4501CUK+T be used with a +3V supply and TTL logic inputs?
No - applying TTL logic levels (up to +3.6V) to the IN pin while V+ = +3V violates the absolute maximum rating of "Voltage into Any Terminal = –0.3V to (V+ + 0.3V)". This risks latch-up or permanent damage. For +3V operation, use CMOS logic with VOH ≤ +3.3V or add a series resistor to limit current if interfacing with legacy TTL.
Is the SOT23-5 package of MAX4501CUK+T RoHS-compliant and lead-free?
Yes, the MAX4501CUK+T SOT23-5 package is RoHS-compliant and lead-free, meeting JEDEC J-STD-020D reflow profiles. The device carries the "+" suffix per Maxim's packaging nomenclature, confirming compliance with EU RoHS Directive 2011/65/EU and exemption 7a for lead in high-melting-temperature solder alloys.
MAX4501CUK+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 250Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 2V ~ 12V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 75ns, 50ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 3pF, 3pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX4501CUK+T FAQ
1.How can I place an order for MAX4501CUK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4501CUK+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 MAX4501CUK+T reliable?
The price and inventory of MAX4501CUK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4501CUK+T is usually 5 days.
3.What payment methods are accepted for MAX4501CUK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4501CUK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4501CUK+T?
MAX4501CUK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4501CUK+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 MAX4501CUK+T?
For technical support, including MAX4501CUK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4501CUK+T requirements.
6.How does Aetrix verify that MAX4501CUK+T is sourced from the original manufacturer or authorized distributors?
All MAX4501CUK+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 MAX4501CUK+T meets industry standards.
7.What is the process for return or replacement of MAX4501CUK+T?
All MAX4501CUK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4501CUK+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 MAX4501CUK+T part is unused and in its original packaging.
Return procedure for MAX4501CUK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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