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Analog Devices Inc./Maxim Integrated MAX4502EXK-T
- Part No.:
- MAX4502EXK-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX4502EXK-T.pdf
- Description:
- IC SW SPST-NCX1 250OHM SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,611
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Product details
Overview
MAX4502EXK-T from Maxim Integrated is a normally closed (NC), single-pole/single-throw (SPST), low-voltage CMOS analog switch operating from +2V to +12V single supply, with 250Ω on-resistance at +5V, 1nA off-leakage at +25°C, and rail-to-rail analog signal handling-used in cellular phone audio routing and PCMCIA card signal switching.
For engineers reviewing the MAX4502EXK-T datasheet, MAX4502EXK-T pinout, MAX4502EXK-T application, or MAX4502EXK-T equivalent, this page delivers verified electrical specs, SC70-5 package mapping, truth-table behavior, leakage performance across temperature, and real-world selection guidance for low-power analog switching.
Technical Context
The MAX4502EXK-T implements a complementary CMOS transmission-gate architecture with internal logic-level translation, enabling TTL/CMOS-compatible control (0.8V/2.4V thresholds) under +5V supply while supporting full rail-to-rail analog swing from GND to V+. Its NC configuration means COM connects to NC when IN is low, and disconnects when IN is high.
ESD protection diodes are integrated between each analog terminal (COM, NC) and both V+ and GND, defining absolute maximum ratings and contributing to temperature-dependent leakage paths. Charge injection is tightly controlled at 10pC, minimizing transient errors in precision sampling circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2V to +12V single supply-supports battery-powered systems down to 2V without level-shifting. |
| On-Resistance | 250Ω max at +5V-ensures minimal signal attenuation and voltage drop in low-current analog paths. |
| Off-Leakage Current | 1nA at +25°C, 10nA at +85°C-preserves signal integrity in high-impedance sensor or reference circuits. |
| Switching Speed | tON = 75ns, tOFF = 50ns-enables reliable operation in audio multiplexing and data-acquisition timing windows. |
| Charge Injection | 10pC-limits voltage glitch on sampled nodes, critical for ADC front-end and sample-hold accuracy. |
| Logic Compatibility | 0.8V/2.4V thresholds at +5V-guarantees interoperability with standard TTL and CMOS microcontrollers. |
| Analog Signal Range | Rail-to-rail (GND to V+)-allows full dynamic range utilization without clipping in unipolar systems. |
Pinout & Package
MAX4502EXK-T is packaged in a 5-pin SC70-5 surface-mount package (2.0mm × 1.25mm, 0.65mm pitch), optimized for space-constrained portable designs. Pin 1 is V+, Pin 2 is COM, Pin 3 is IN, Pin 4 is NC, and Pin 5 is GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply input | Powers analog switch core and digital control logic; sets upper analog voltage limit and logic thresholds. |
| COM | Analog common terminal | Central node connecting to either NC (default) or open circuit (when enabled); bidirectional signal path. |
| IN | Digital control input | Active-high logic input: low = NC closed to COM; high = NC disconnected from COM. |
| NC | Normally closed analog terminal | Connected to COM when IN = low; electrically isolated when IN = high-no internal connection to other pins. |
| GND | Ground reference | Return path for supply current and logic reference; establishes lower analog voltage limit. |
Key Features
| Feature | Design Value |
|---|---|
| SC70-5 packaging | Enables ultra-compact placement in handheld devices and multi-channel audio modules where board area is constrained. |
| Guaranteed 250Ω RON | Ensures predictable gain error and channel matching in precision instrumentation and audio line-level switching. |
| 10pC charge injection | Reduces settling error in sample-and-hold and switched-capacitor circuits, improving effective resolution. |
| 1nA off-leakage at +25°C | Maintains DC accuracy in high-impedance sensor interfaces and battery-monitoring voltage dividers. |
| 75ns/50ns switching | Supports >10MHz multiplexing rates in data-acquisition systems without introducing timing skew. |
Applications
| Cellular Phone Audio Routing | PCMCIA Card Signal Switching |
|---|---|
|
Use Scenario: Selecting between microphone, earpiece, and headset signals in dual-mode GSM/UMTS handsets. IC Role / Device Role / Timing Role: NC SPST switch isolating or connecting audio paths under baseband processor control. Use Value: Low 1nA leakage prevents DC bias shift in electret mic bias networks; rail-to-rail support preserves full audio swing. |
Use Scenario: Enabling/disabling I/O lines (e.g., VCC, RESET, BVD1) during PCMCIA card insertion/removal sequences. IC Role / Device Role / Timing Role: Fault-isolating switch placed between host controller and card edge connector. Use Value: 250Ω RON ensures minimal voltage drop on power lines; fast 50ns tOFF prevents glitch propagation during hot-swap transitions. |
| Battery-Operated Data Loggers | Low-Voltage Sensor Multiplexing |
|
Use Scenario: Routing thermistor, RTD, or pH electrode outputs to a shared ADC input in portable environmental monitors. IC Role / Device Role / Timing Role: NC-configured switch providing default sensor connection until overridden by MCU command. Use Value: +2V minimum supply allows direct use with single Li-ion cells; 10nA leakage at +85°C avoids drift in long-duration logging. |
Use Scenario: Scanning multiple bridge-based strain gauges in industrial handheld testers with 3.3V microcontroller control. IC Role / Device Role / Timing Role: Analog path selector implementing sequential channel access for ratiometric measurements. Use Value: 10pC charge injection minimizes offset error in bridge excitation switching; guaranteed RON enables accurate gain calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4502EUK-T | SOT23-5 package (2.9mm × 1.6mm), same electrical specs and -40°C to +85°C rating. | Larger footprint; better thermal dissipation but occupies ~2.3× more PCB area than SC70-5. | Select when board layout allows larger package or requires higher power handling margin. |
| ADG801BRMZ | 1.8V–5.5V supply, 0.5Ω typical RON, 1pC charge injection-but NC function not available (NO only). | Requires external logic inversion to emulate NC behavior; unsuitable where default-closed safety state is mandatory. | Choose only if ultra-low RON or sub-2V operation is prioritized over NC functionality and fault-safe default state. |
Compared with MAX4502EUK-T, the MAX4502EXK-T saves board space with SC70-5 while maintaining identical performance; versus ADG801BRMZ, it provides native NC behavior essential for fail-safe signal routing but trades off lower on-resistance and charge injection.
Availability
MAX4502EXK-T is available at Aetrix Electronics and suitable for cellular phones, PCMCIA cards, and battery-operated data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4502EXK-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.
The MAX4501/MAX4502 family targets low-voltage, low-leakage analog signal routing in portable and space-constrained systems-emphasizing rail-to-rail operation, small-footprint packaging, and robust logic compatibility.
FAQ
What is the default state of the MAX4502EXK-T analog switch?
The MAX4502EXK-T is a normally closed (NC) SPST switch: when the IN pin is low (≤0.8V), COM is connected to NC; when IN is high (≥2.4V), the connection opens. This default-closed behavior is intrinsic to the MAX4502EXK-T silicon design and requires no external pull-up or configuration.
Does the MAX4502EXK-T support rail-to-rail analog signals?
Yes, the MAX4502EXK-T supports rail-to-rail analog signals from GND to V+, meaning it can pass voltages equal to the supply rails without clipping. This capability is confirmed in the datasheet's "Analog Signal Range" specification and applies across its full +2V to +12V supply range.
What is the maximum allowable supply voltage for the MAX4502EXK-T?
The absolute maximum V+ rating for the MAX4502EXK-T is +13V, but continuous operation is specified up to +12V. Exceeding +13V risks permanent damage per the Absolute Maximum Ratings table; operation at +12V is fully characterized with 200Ω on-resistance and validated leakage performance.
Can the MAX4502EXK-T be used with a 3.3V microcontroller logic output?
Yes-the MAX4502EXK-T's logic thresholds (0.8V low, 2.4V high at +5V supply) are compatible with 3.3V CMOS outputs. At V+ = +3.3V, the actual thresholds scale downward, and the datasheet confirms functional operation down to +2V supply, making 3.3V control fully supported without level shifting.
Is the SC70-5 package of the MAX4502EXK-T lead-free and RoHS compliant?
Yes, the MAX4502EXK-T SC70-5 package is lead-free and RoHS compliant per Maxim Integrated's official product documentation and packaging specifications. The "-T" suffix denotes tape-and-reel packaging meeting JEDEC standards for Pb-free assembly processes.
MAX4502EXK-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- 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
MAX4502EXK-T FAQ
1.How can I place an order for MAX4502EXK-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4502EXK-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 MAX4502EXK-T reliable?
The price and inventory of MAX4502EXK-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4502EXK-T is usually 5 days.
3.What payment methods are accepted for MAX4502EXK-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4502EXK-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4502EXK-T?
MAX4502EXK-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4502EXK-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 MAX4502EXK-T?
For technical support, including MAX4502EXK-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4502EXK-T requirements.
6.How does Aetrix verify that MAX4502EXK-T is sourced from the original manufacturer or authorized distributors?
All MAX4502EXK-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 MAX4502EXK-T meets industry standards.
7.What is the process for return or replacement of MAX4502EXK-T?
All MAX4502EXK-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4502EXK-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 MAX4502EXK-T part is unused and in its original packaging.
Return procedure for MAX4502EXK-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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