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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:3,289
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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, exhibits 250Ω on-resistance at +5V, 1nA off-leakage at +25°C, and 75ns turn-on time - enabling precision signal routing in battery-powered audio and data-acquisition systems.
For engineers reviewing the MAX4501CUK-T datasheet, MAX4501CUK-T pinout, MAX4501CUK-T application, or MAX4501CUK-T equivalent, this device is selected for low-leakage, fast-switching SPST analog path control where supply flexibility (+2V to +12V), TTL/CMOS logic compatibility, and SOT23-5 footprint are critical.
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 across switch terminals. Its logic interface uses fixed 0.8V/2.4V thresholds at +5V, scaling slightly with supply voltage up to ~3V at +12V.
Switching dynamics are governed by gate-drive strength and channel capacitance: tON/tOFF vary with supply voltage (e.g., 75ns/50ns at +5V, slower at +3V), and charge injection is tightly controlled at 10pC typical due to matched transistor design and layout symmetry - critical for sample-hold integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2V to +12V single supply - enables direct integration into 3.3V, 5V, and 9V battery or logic-supplied systems without level shifters. |
| On-Resistance (RON) | 250Ω max at +5V, TA = +25°C - ensures minimal signal attenuation and gain error in precision sensor or audio signal paths. |
| Off-Leakage Current | 1nA max at +25°C - preserves accuracy in high-impedance circuits (e.g., pH sensors, piezoelectric interfaces) over temperature. |
| Switching Speed | tON = 75ns, tOFF = 50ns (RL = 1kΩ, CL = 35pF) - supports multiplexing of audio-band and medium-speed data signals without timing skew. |
| Charge Injection | 10pC typical - limits voltage glitch on sampled nodes, essential for low-error ADC front-end switching. |
| Logic Compatibility | 0.8V/2.4V thresholds at +5V - guarantees reliable control from standard TTL and CMOS outputs without external biasing. |
| Analog Signal Range | Rail-to-rail (GND to V+) - allows full utilization of supply headroom for unipolar or bipolar-referenced signals. |
Pinout & Package
SOT23-5 package (5-pin, 1.6mm × 2.9mm, 0.95mm height), moisture sensitivity level 1, RoHS-compliant, tape-and-reel delivery (MAX4501CUK-T).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - V+ | Positive supply rail | Powers internal CMOS switches and logic; sets analog signal upper limit and ESD diode clamping reference. |
| 2 - NO | Normally-open analog terminal | Open-circuit when IN = LOW; connects to COM only when switch is enabled - defines default signal isolation state. |
| 3 - IN | Digital control input | TTL/CMOS-compatible logic input; HIGH activates switch (COM↔NO), LOW disables it (open circuit). |
| 4 - GND | Ground reference | Return path for supply current and ESD diode leakage; sets analog signal lower limit and logic threshold reference. |
| 5 - COM | Common analog terminal | Signal hub - bidirectionally routes between NO (when enabled) and system ground or signal source/sink. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog operation | Supports full V+ to GND signal swing without clipping - eliminates need for external biasing in unipolar sensor interfaces. |
| Low 1nA off-leakage at +25°C | Maintains DC accuracy in high-Z networks (e.g., thermistor bridges, capacitive touch inputs) without calibration drift. |
| Guaranteed 250Ω on-resistance | Ensures predictable channel gain and THD performance across production lots and temperature (0°C to +70°C). |
| 10pC charge injection | Reduces sampling error in switched-capacitor circuits - enables sub-12-bit linearity without hold capacitor oversizing. |
| 75ns/50ns switching times | Permits time-division multiplexing of up to 10-channel audio or multi-sensor data acquisition at >10kHz update rates. |
Applications
| Audio Signal Routing | Low-Voltage Data Acquisition |
|---|---|
|
Use Scenario: Selecting between microphone inputs or routing line-level audio to codec channels in portable media players. IC Role / Device Role / Timing Role: SPST analog switch controlling signal path continuity; operates at audio bandwidth (<20kHz) with <−100dB off-isolation. Use Value: Eliminates mechanical relays or larger packages; 250Ω RON and 10pC charge injection preserve SNR and prevent pop/click artifacts during switching. |
Use Scenario: Multiplexing thermocouple, RTD, or bridge sensor outputs into a single ADC input in handheld test equipment. IC Role / Device Role / Timing Role: Precision analog switch isolating high-impedance sources; biased at +5V with rail-to-rail support for ±2.5V differential signals. Use Value: 1nA off-leakage prevents offset errors in µV-level measurements; guaranteed RON enables accurate gain calibration across temperature. |
| Battery-Powered Modems | PCMCIA Interface Switching |
|
Use Scenario: Enabling/disabling analog line drivers, filters, or hybrid circuits in 3.3V/5V modem modules with strict power budget constraints. IC Role / Device Role / Timing Role: Low-quiescent-current analog path controller; activated only during call setup or data burst windows. Use Value: 10µA max supply current at +5V minimizes standby drain; +2V minimum operation extends usable battery life in partial-discharge states. |
Use Scenario: Isolating card-detect, reset, or analog audio lines between PC host and PCMCIA peripheral cards during hot insertion/removal. IC Role / Device Role / Timing Role: Fault-tolerant signal gate preventing backdrive or latch-up during card transition events. Use Value: Internal ESD diodes (±2000V HBM) and 12V absolute max rating protect host-side circuitry; SOT23-5 footprint fits tight card-edge layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4501EUK-T | Same functionality, but rated for −40°C to +85°C industrial temperature range vs. 0°C to +70°C for MAX4501CUK-T. | Required for automotive cabin modules or outdoor instrumentation where extended thermal stability is mandatory. | Select MAX4501EUK-T when ambient operating temperature exceeds +70°C or drops below 0°C; otherwise MAX4501CUK-T suffices for commercial-grade devices. |
| TS5A23157DCUR | Lower on-resistance (0.9Ω typ at +3.3V), but higher off-leakage (100nA at +85°C) and no +12V operation - limited to 3.3V/5V systems. | Better for high-speed, low-RON digital signal switching (e.g., USB D+/D−), not precision analog sensing. | Choose TS5A23157DCUR only if RON < 1Ω is critical and supply is fixed at 3.3V; avoid for rail-to-rail analog or wide-supply applications. |
Compared with MAX4501EUK-T, the MAX4501CUK-T trades extended temperature coverage for lower cost and qualification scope; compared with TS5A23157DCUR, it sacrifices RON for superior leakage, voltage range, and analog fidelity - making it the preferred choice for measurement-grade signal routing.
Availability
MAX4501CUK-T is available at Aetrix Electronics and suitable for battery-operated equipment, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply across commercial temperature ranges.
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 industrial, medical, communications, and consumer applications.
The MAX4501CUK-T belongs to Maxim's analog switch product line, engineered specifically for low-leakage, rail-to-rail signal routing in space-constrained, battery-sensitive systems where supply voltage flexibility and logic compatibility are essential.
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. Operating continuously at +12V is supported per datasheet electrical characteristics, with on-resistance dropping to 200Ω and off-leakage remaining ≤50nA at +85°C. Exceeding +13V risks permanent damage due to internal ESD diode breakdown.
Does the MAX4501CUK-T support bidirectional analog signal flow?
Yes, the MAX4501CUK-T supports fully bidirectional signal routing between COM and NO terminals. Its CMOS transmission-gate structure imposes no inherent directionality - analog signals pass with identical RON, leakage, and bandwidth regardless of source/sink orientation, as confirmed in the Pin Description section stating "NO, NC, and COM pins are identical and interchangeable."
What is the logic threshold behavior of the MAX4501CUK-T at non-5V supplies?
At +5V supply, the MAX4501CUK-T guarantees 0.8V (low) and 2.4V (high) logic thresholds. As V+ increases to +12V, thresholds scale upward - reaching ~3V for VINH - remaining compatible with CMOS outputs but exceeding TTL's 2.8V minimum high-level guarantee. At +3V supply, VINH remains 2.4V, requiring external level-shifting for TTL control.
Can the MAX4501CUK-T be used in AC-coupled audio paths without DC bias concerns?
Yes - the MAX4501CUK-T's rail-to-rail capability and absence of internal DC path between COM and NO means it passes AC signals without introducing offset or requiring external bias networks. Its 1nA off-leakage at +25°C prevents capacitor discharge in coupling stages, preserving low-frequency response down to sub-Hz levels in properly designed circuits.
Is the SOT23-5 package of the MAX4501CUK-T pin-compatible with other Maxim analog switches?
The MAX4501CUK-T uses a dedicated SOT23-5 pinout (V+, NO, IN, GND, COM) that differs from Maxim's dual-switch MAX4503 or quad-switch MAX4505. While footprint dimensions match standard SOT23-5, pin assignments are not interchangeable - substituting without layout revision will cause functional failure or supply shorts.
MAX4501CUK-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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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