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Analog Devices Inc./Maxim Integrated MAX4501EUK+T
- Part No.:
- MAX4501EUK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MAX4501EUK+T.pdf
- Description:
- IC SW SPST-NOX1 250OHM SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:9,502
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Product details
Overview
MAX4501EUK+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 is housed in a 5-pin SC70-5 package for space-constrained battery-powered audio routing applications.
For engineers reviewing the MAX4501EUK+T datasheet, MAX4501EUK+T pinout, MAX4501EUK+T application, or MAX4501EUK+T equivalent, key selection criteria include guaranteed on-resistance over temperature, ultra-low leakage across industrial temperature range (−40°C to +85°C), TTL/CMOS logic compatibility at +5V, fast 75ns turn-on time, and SC70-5 footprint suitability for portable signal-path switching.
Technical Context
The MAX4501EUK+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 signal terminals. Its digital control interface uses fixed 0.8V/2.4V logic thresholds, ensuring reliable operation with +5V TTL/CMOS drivers without level-shifting.
Unlike bidirectional switches with internal biasing, the MAX4501EUK+T has no internal connection between COM, NO, and NC-any terminal may serve as input or output. Its charge injection is tightly controlled at 10pC, minimizing transient errors in precision sampling circuits, and its off-isolation exceeds −100dB at 100kHz, supporting high-fidelity audio and low-noise data acquisition.
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-powered systems without auxiliary regulators. |
| On-Resistance (RON) | 250Ω max at +5V, TA = −40°C to +85°C-ensures predictable voltage drop and minimal gain error in sensor front-ends and audio paths. |
| Off-Leakage Current | 10nA max at +85°C-preserves signal integrity in high-impedance sample-and-hold or multiplexed sensor nodes. |
| Switching Speed | tON = 75ns, tOFF = 50ns (RL = 1kΩ, CL = 35pF)-supports >1MHz multiplexing in data-acquisition systems with minimal settling delay. |
| Charge Injection | 10pC typical-limits voltage glitch on sampled capacitors, critical for 12-bit+ ADC driver stages. |
| Logic Compatibility | 0.8V low / 2.4V high thresholds at +5V supply-guarantees noise-immune interfacing with standard microcontroller GPIOs. |
| Analog Signal Range | Rail-to-rail (GND to V+)-allows full dynamic range utilization in unipolar signal chains without level-shifting circuitry. |
Pinout & Package
MAX4501EUK+T is packaged in a 5-pin SC70-5 (also labeled SOT23-5 compatible) surface-mount package with 0.65mm pitch, optimized for compact portable designs. Pin 1 is V+, Pin 2 is COM, Pin 3 is IN, Pin 4 is N.C. (not internally connected), and Pin 5 is GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply rail for analog and digital sections | Powers internal CMOS gates and defines upper analog signal limit; must be decoupled locally to suppress switching transients. |
| COM | Analog common terminal | Central node for bidirectional signal flow; connects to system reference point (e.g., ADC input or codec line). |
| IN | Digital control input | Active-high logic input; drives internal gate drivers-no external pull-up required due to defined TTL/CMOS thresholds. |
| N.C. | No internal connection | Unbonded pad; must remain floating-no PCB trace or thermal pad connection permitted. |
| GND | Circuit ground reference | Return path for supply current and ESD diode leakage; requires low-impedance connection to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports full-scale signals from GND to V+ without clipping-eliminates need for external biasing in unipolar sensor interfaces. |
| Guaranteed 250Ω on-resistance | Specified over full −40°C to +85°C range-enables accurate gain calibration in production test without temperature derating. |
| 10nA max off-leakage at +85°C | Minimizes DC error accumulation in high-Z multiplexer trees used in medical or environmental monitoring systems. |
| 10pC charge injection | Reduces hold-step error in switched-capacitor circuits-critical for maintaining 12-bit effective resolution in SAR ADC front-ends. |
| 75ns turn-on time | Enables time-multiplexed channel scanning at ≥10kHz rates in portable data loggers with minimal inter-channel crosstalk. |
Applications
| Portable Audio Routing | Battery-Powered Data Acquisition |
|---|---|
|
Use Scenario: Switching microphone or line-level audio signals between multiple codecs or amplifiers in Bluetooth headsets and voice recorders. IC Role / Device Role / Timing Role: SPST analog switch controlling signal path selection under microcontroller GPIO command. Use Value: Rail-to-rail support preserves full audio dynamic range; 250Ω RON avoids audible attenuation; SC70-5 footprint saves board area in tight enclosures. |
Use Scenario: Multiplexing thermistor, RTD, or pH sensor outputs into a single ADC channel in handheld environmental meters. IC Role / Device Role / Timing Role: Low-leakage analog switch isolating high-impedance sensor nodes during inactive periods. Use Value: 10nA off-leakage prevents drift in µA-level sensor bias currents; 10pC charge injection limits offset error in precision integrators. |
| PCMCIA Interface Switching | Modem Line-Switching |
|
Use Scenario: Enabling/disabling analog signal paths (e.g., audio codec, modem interface) in legacy PCMCIA cards based on card-detect status. IC Role / Device Role / Timing Role: Normally-open switch inserted in analog signal chain, activated only when card is powered and configured. Use Value: +2V to +12V operation matches PCMCIA VCC range; 0.8V/2.4V logic thresholds ensure compatibility with CardBus controllers. |
Use Scenario: Isolating DAA (Data Access Arrangement) circuitry from telephone line during standby or power-down in embedded modems. IC Role / Device Role / Timing Role: High-isolation analog switch breaking analog loop continuity to meet regulatory leakage requirements. Use Value: −100dB off-isolation at 100kHz blocks line noise coupling; 1nA off-leakage meets ITU-T K.20 surge immunity leakage limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4501CUK-T | Same electrical specs but rated for 0°C to +70°C only; SC70-5 package identical. | Limited to commercial-temperature applications (e.g., consumer audio dongles, non-industrial USB peripherals). | Select when ambient operating temperature stays within 0°C–70°C and cost sensitivity outweighs extended temperature coverage. |
| TS5A23157DCUR | Lower 0.9Ω RON at 3.3V but higher 20nA off-leakage at +85°C; 6-pin SC70 package with enable polarity reversal. | Better for low-RON power-switching (e.g., LED bias control); less suitable for high-Z sensor multiplexing requiring sub-10nA leakage. | Choose for 3.3V systems prioritizing on-resistance over leakage; verify layout compatibility-pinout differs (IN/EN swapped, no N.C. pin). |
Compared with MAX4501CUK-T, the MAX4501EUK+T extends operational reliability to −40°C environments without performance trade-offs; versus TS5A23157DCUR, it trades 250× higher RON for 2× lower off-leakage-making it superior for precision, high-impedance signal routing where DC accuracy dominates speed.
Availability
MAX4501EUK+T is available at Aetrix Electronics and suitable for battery-operated equipment, portable audio routing, and low-voltage data-acquisition systems requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MAX4501EUK+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, communications, and consumer applications.
The MAX4501EUK+T belongs to Maxim's precision analog switch product line, designed specifically for low-leakage, rail-to-rail signal routing in space- and power-constrained portable electronics where temperature resilience and signal fidelity are critical.
FAQ
What is the maximum supply voltage rating for MAX4501EUK+T?
The MAX4501EUK+T has an absolute maximum supply voltage of +13V referenced to GND. However, functional operation is specified from +2V to +12V. Operating continuously above +12V risks permanent damage, and the device is not characterized beyond that range-even though the absolute rating allows brief excursions to +13V under fault conditions. Always maintain V+ ≤ +12V in normal use.
Does MAX4501EUK+T support bidirectional analog signal flow?
Yes, the MAX4501EUK+T supports fully bidirectional analog signal flow between COM and NO terminals. The device contains no internal polarity constraints-the switch behaves identically regardless of signal direction. This enables flexible use in both source-to-load and load-to-source configurations, such as in audio line sharing or sensor excitation/reception paths.
Is the N.C. pin on MAX4501EUK+T required to be grounded or left floating?
The N.C. (pin 4) on MAX4501EUK+T is not internally connected and must be left electrically floating-neither grounded nor tied to any voltage. Connecting it risks introducing parasitic capacitance or unintended current paths. The SC70-5 package drawing confirms this pin is an unused bond pad; PCB layout should omit any trace or thermal relief to this pad.
How does MAX4501EUK+T behave when V+ is supplied with +3.3V?
When powered from +3.3V, the MAX4501EUK+T remains fully functional: analog signals swing rail-to-rail (0V to +3.3V), on-resistance increases to ~600Ω (typical), and logic thresholds scale proportionally-VINL remains ~0.8V and VINH ~2.4V, preserving compatibility with standard 3.3V CMOS outputs. No external level shifting is needed, though tON/tOFF increase slightly versus +5V operation.
Can MAX4501EUK+T replace MAX4501EXK-T in a design?
Yes-MAX4501EUK+T and MAX4501EXK-T are functionally and pin-compatible variants both rated for −40°C to +85°C and offered in SC70-5 packages. The "U" and "X" suffixes denote different assembly/test sites and top-mark codes (AAAA vs. AAE), but electrical specifications, thermal performance, and reliability qualifications are identical per Maxim's datasheet revision history and ordering information table.
MAX4501EUK+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
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MAX4501EUK+T FAQ
1.How can I place an order for MAX4501EUK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4501EUK+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 MAX4501EUK+T reliable?
The price and inventory of MAX4501EUK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4501EUK+T is usually 5 days.
3.What payment methods are accepted for MAX4501EUK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4501EUK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4501EUK+T?
MAX4501EUK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4501EUK+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 MAX4501EUK+T?
For technical support, including MAX4501EUK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4501EUK+T requirements.
6.How does Aetrix verify that MAX4501EUK+T is sourced from the original manufacturer or authorized distributors?
All MAX4501EUK+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 MAX4501EUK+T meets industry standards.
7.What is the process for return or replacement of MAX4501EUK+T?
All MAX4501EUK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4501EUK+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 MAX4501EUK+T part is unused and in its original packaging.
Return procedure for MAX4501EUK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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