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Analog Devices Inc./Maxim Integrated MAX4501EXK-T
- Part No.:
- MAX4501EXK-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX4501EXK-T.pdf
- Description:
- IC SW SPST-NOX1 250OHM SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,137
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Product details
Overview
MAX4501EXK-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 packaged in SC70-5 for space-constrained battery-powered audio routing applications.
For engineers reviewing the MAX4501EXK-T datasheet, MAX4501EXK-T pinout, MAX4501EXK-T application, or MAX4501EXK-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 PCB layouts.
Technical Context
The MAX4501EXK-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 paths. Its logic interface uses internal level translators to drive analog gates directly from TTL/CMOS inputs without external biasing.
Unlike multiplexers or bidirectional digital switches, the MAX4501EXK-T functions as a passive, bidirectional analog path with no internal amplification or buffering; all dynamic performance-including 10pC charge injection and −100dB off-isolation at 100kHz-is defined by its MOSFET channel geometry, gate drive strength, and package parasitics-verified across +2V to +12V supply operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2V to +12V single supply-enables direct integration into 3.3V and 5V systems without level shifters |
| On-Resistance (RON) | 250Ω max at +5V, TA = +25°C-ensures minimal signal attenuation in low-current sensor/audio paths |
| Off-Leakage Current | 1nA max at +25°C, 10nA max at +85°C-preserves accuracy in high-impedance data-acquisition front-ends |
| Switching Speed | tON = 75ns, tOFF = 50ns (RL = 1kΩ, CL = 35pF)-supports burst-mode signal routing in modem and PCMCIA timing windows |
| Charge Injection | 10pC max-limits voltage glitch on sampled-hold nodes in precision ADC interfaces |
| Logic Thresholds | VINH = 2.4V, VINL = 0.8V at +5V supply-guarantees interoperability with standard TTL and CMOS outputs |
| Analog Signal Range | Rail-to-rail (GND to V+)-allows full-scale signal pass-through without clipping in battery-operated equipment |
Pinout & Package
MAX4501EXK-T is housed in a 5-pin SC70-5 package (1.25mm × 1.65mm, 0.65mm pitch), optimized for high-density portable designs. Pin assignments are identical to SOT23-5 but with tighter dimensional tolerances and thermal profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - V+ | Positive supply rail | Powers analog switch core and logic translator; sets upper analog voltage limit and logic high threshold |
| 2 - NO | Normally open analog terminal | Open-circuit when IN = LOW; connects to COM only when switch is enabled-used for interrupt or enable-controlled signal insertion |
| 3 - IN | Digital control input | TTL/CMOS-compatible logic input; HIGH activates switch path between COM and NO |
| 4 - GND | Ground reference | Returns logic circuitry and ESD protection diodes; defines lower analog voltage limit |
| 5 - COM | Common analog terminal | Bidirectional signal port-connects to NO when enabled; supports equal forward/reverse signal flow |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog operation | Supports full V+ to GND signal swing without distortion-critical for ±1.5V audio and unipolar sensor outputs |
| Guaranteed 250Ω on-resistance | Specified over full temperature and supply range-enables predictable gain and settling in precision signal chains |
| 10pC charge injection | Minimizes sampling error in switched-capacitor circuits and sample-and-hold stages |
| SC70-5 and SOT23-5 packaging | Enables drop-in layout compatibility between MAX4501EXK-T and MAX4501CUK-T in space-constrained designs |
| −40°C to +85°C operating range | Validated for industrial and extended-temperature portable applications including cellular handsets and modems |
Applications
| Battery-Powered Audio Routing | Low-Voltage Data Acquisition |
|---|---|
Use Scenario: Selecting between microphone and headset signals in a Bluetooth headset with single 3.3V supply. IC Role / Device Role / Timing Role: SPST analog switch isolating signal paths under microcontroller GPIO control during mode transitions. Use Value: 1nA off-leakage prevents DC offset drift in high-Z electret bias networks; 75ns switching enables seamless audio path reconfiguration without audible click. |
Use Scenario: Multiplexing thermistor and potentiometer inputs into a 12-bit SAR ADC in a handheld medical monitor. IC Role / Device Role / Timing Role: Precision analog switch providing low-RON, low-leakage signal connection to ADC input with minimal THD degradation. Use Value: 250Ω RON contributes <0.01% gain error at 10kΩ source impedance; rail-to-rail support accommodates full 0–3.3V sensor range. |
| PCMCIA Card Signal Switching | Cellular Phone Peripheral Interface |
Use Scenario: Enabling/disabling audio codec interface lines during PCMCIA card insertion/removal in legacy laptops. IC Role / Device Role / Timing Role: Isolation switch protecting host controller I/O from hot-plug transients and mismatched termination. Use Value: Internal ESD diodes rated >2000V HBM protect both COM and NO pins; 10nA max off-leakage at +85°C ensures stable bias during thermal stress. |
Use Scenario: Routing antenna diversity signals between RF transceiver and secondary GPS receiver in dual-SIM smartphones. IC Role / Device Role / Timing Role: Low-capacitance analog switch minimizing insertion loss and crosstalk in sub-3GHz RF front-end paths. Use Value: 3pF NC/NO off-capacitance and −100dB off-isolation at 100kHz reduce adjacent-channel interference; SC70-5 footprint saves board area near antenna modules. |
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 0°C to +70°C and packaged in SOT23-5 (slightly larger footprint, higher thermal resistance) | Suitable for commercial-grade consumer devices where extended temperature is not required | Select MAX4501CUK-T only if ambient operating temperature stays below +70°C and PCB layout allows SOT23-5 pad dimensions |
| TS5A23157DCUR | Lower 0.9Ω RON at 3.3V but higher 25nA off-leakage at +85°C; supports 1.65V–5.5V supply | Better for low-RON power-path switching, less suitable for high-impedance precision sensing due to leakage | Prefer TS5A23157DCUR when driving low-Z loads below 100Ω; avoid in µA-level sensor bias networks where MAX4501EXK-T's 10nA leakage is critical |
Compared with MAX4501CUK-T, MAX4501EXK-T provides guaranteed −40°C to +85°C operation and smaller SC70-5 footprint-essential for automotive-adjacent and industrial portable gear-while matching all key analog specs. Against TS5A23157DCUR, MAX4501EXK-T trades lower on-resistance for superior leakage performance and broader supply range (+2V to +12V), making it more versatile in mixed-voltage battery systems.
Availability
MAX4501EXK-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 temperature grades.
Supply support for MAX4501EXK-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, communications, and consumer applications-with emphasis on high-reliability, low-power, and small-footprint solutions.
The MAX4501EXK-T belongs to Maxim's low-voltage analog switch product line, engineered specifically for rail-to-rail signal integrity, ultra-low leakage, and seamless integration into portable and battery-sensitive systems-from modems to medical handhelds.
FAQ
What is the maximum supply voltage rating for MAX4501EXK-T?
The MAX4501EXK-T has an absolute maximum supply voltage (V+) of +13V, but its specified operational range is +2V to +12V. Operation above +12V risks exceeding design margins and may degrade long-term reliability-even if within absolute ratings. For robust 12V system use, ensure V+ remains ≤ +12.6V per the +12V supply characterization table, and confirm thermal derating for SC70-5's 200mW dissipation limit at elevated ambient temperatures. The MAX4501EXK-T must never be subjected to reverse supply polarity or voltage transients beyond ±0.3V relative to GND on any pin.
Does MAX4501EXK-T support bidirectional analog signal flow?
Yes, the MAX4501EXK-T supports fully bidirectional analog signal flow between COM and NO terminals. Its CMOS transmission-gate structure imposes no inherent directionality-signals pass with identical RON, leakage, and bandwidth in either direction. This is confirmed in the Pin Description section stating "NO, NC, and COM pins are identical and interchangeable. Any may be considered as an input or an output; signals pass equally well in both directions." The MAX4501EXK-T's rail-to-rail capability and symmetric leakage specs further validate true bidirectional operation across its full −40°C to +85°C range.
What is the logic-compatible supply voltage range for MAX4501EXK-T's IN pin?
The MAX4501EXK-T's IN pin is designed for TTL/CMOS compatibility when V+ = +5V, with guaranteed logic thresholds of VINL ≤ 0.8V (LOW) and VINH ≥ 2.4V (HIGH). As V+ increases to +12V, the input thresholds scale upward-reaching ~3V for VINH-remaining compatible with CMOS outputs but exceeding TTL's 2.0V minimum HIGH threshold. Therefore, MAX4501EXK-T is logic-compatible across its entire +2V to +12V supply range, but direct interfacing with 3.3V or 5V logic families requires verifying that the driving device meets the actual VINH/VINL levels at the applied V+, especially at temperature extremes.
Can MAX4501EXK-T be used in audio line-level switching applications?
Yes, the MAX4501EXK-T is qualified for audio line-level switching: its 250Ω on-resistance introduces negligible attenuation (<0.1dB) into 10kΩ audio paths; 10pC charge injection prevents audible pop in headphone drivers; and −100dB off-isolation at 100kHz suppresses crosstalk between adjacent channels. Verified THD plots show <0.01% distortion up to 10kHz at +5V supply. However, for professional audio with >20Vpp signals, the MAX4501EXK-T's +12V max V+ and rail-to-rail limit restrict use to consumer-grade line levels (≤2Vrms). Always AC-couple inputs and avoid DC bias exceeding GND–V+ range.
How does the SC70-5 package of MAX4501EXK-T compare thermally to SOT23-5 variants?
The SC70-5 package used in MAX4501EXK-T has a lower power dissipation rating than SOT23-5: 200mW at +70°C (derating 2.5mW/°C above), versus 571mW for SOT23-5 (derating 7.1mW/°C). This reflects SC70-5's smaller die pad and thinner mold compound. Under typical 1mA analog current and 1µA supply current, MAX4501EXK-T self-heats <1°C-well within limits. But in high-current or high-ambient scenarios (>60°C), thermal margin shrinks faster with SC70-5. Layout best practices-such as maximizing copper pour under pin 1 (V+) and pin 4 (GND)-are essential to sustain MAX4501EXK-T's −40°C to +85°C rating in compact designs.
MAX4501EXK-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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
MAX4501EXK-T FAQ
1.How can I place an order for MAX4501EXK-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4501EXK-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 MAX4501EXK-T reliable?
The price and inventory of MAX4501EXK-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4501EXK-T is usually 5 days.
3.What payment methods are accepted for MAX4501EXK-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4501EXK-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4501EXK-T?
MAX4501EXK-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4501EXK-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 MAX4501EXK-T?
For technical support, including MAX4501EXK-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4501EXK-T requirements.
6.How does Aetrix verify that MAX4501EXK-T is sourced from the original manufacturer or authorized distributors?
All MAX4501EXK-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 MAX4501EXK-T meets industry standards.
7.What is the process for return or replacement of MAX4501EXK-T?
All MAX4501EXK-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4501EXK-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 MAX4501EXK-T part is unused and in its original packaging.
Return procedure for MAX4501EXK-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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