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Analog Devices Inc./Maxim Integrated MAX4501ESA+
- Part No.:
- MAX4501ESA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4501ESA+.pdf
- Description:
- IC SWITCH SPST-NOX1 250OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:377
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Product details
Overview
MAX4501ESA+ from Maxim Integrated is a single-pole/single-throw (SPST), normally-open (NO), low-voltage CMOS analog switch operating from a single +2V to +12V supply. It supports rail-to-rail analog signal switching, delivers 250Ω on-resistance at +5V, exhibits 1nA off-leakage at +25°C, and features TTL/CMOS-compatible logic thresholds-used in battery-powered audio routing and low-voltage data-acquisition front-ends.
For engineers reviewing the MAX4501ESA+ datasheet, MAX4501ESA+ pinout, MAX4501ESA+ application, or MAX4501ESA+ equivalent, key selection criteria include guaranteed on-resistance over temperature, leakage performance at extended industrial temperature range (–40°C to +85°C), SO-8 package compatibility with legacy PCB footprints, and rail-to-rail signal handling without level-shifting circuitry.
Technical Context
The MAX4501ESA+ integrates complementary MOSFETs configured as a single-pole, normally-open analog switch with no internal pull-up/down. Its control logic accepts 0.8V/2.4V thresholds for direct +5V TTL/CMOS interfacing, and its analog path supports bidirectional rail-to-rail signals up to V+ without clipping.
ESD protection diodes are internally connected between COM/NO/IN pins and both V+ and GND, defining absolute maximum ratings and contributing to measured leakage currents. The device draws only supply current through these reverse-biased diodes and internal logic-no quiescent current flows through the analog path when off.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Supply Range | +2V to +12V single supply-enables direct integration into 3.3V, 5V, and 9V battery or industrial systems without auxiliary rails |
| On-Resistance (RON) | 250Ω max at +5V, TA = –40°C to +85°C-ensures predictable voltage drop and minimal gain error in precision signal paths |
| Off-Leakage Current | 10nA max at +85°C-preserves accuracy in high-impedance sensor interfaces and sample-hold circuits |
| Charge Injection | 10pC typ-limits voltage glitch on sampled nodes, critical for ADC front-end multiplexing |
| Switching Speed | tON = 75ns, tOFF = 50ns (RL = 1kΩ, CL = 35pF)-supports multiplexing of moderate-bandwidth signals up to ~2MHz |
| Logic Compatibility | 0.8V low / 2.4V high thresholds at +5V-guarantees noise-immune digital control without external level shifters |
| Operating Temperature | –40°C to +85°C-qualified for industrial and automotive under-hood auxiliary modules |
Pinout & Package
MAX4501ESA+ is housed in an 8-pin SO (Small Outline) package with standard 1.27mm pitch and gull-wing leads. Pin 1 is V+, pin 2 is COM, pin 3 is NO, pin 4 is NC (not internally connected), pin 5 is IN, pin 6 is GND, pin 7 is N.C., and pin 8 is N.C. All unused pins are unconnected and must remain floating or grounded per layout best practices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply input | Powers analog switch core and internal logic; sets upper rail for rail-to-rail signal handling |
| COM | Analog common terminal | Bidirectional signal port-connects to system reference node or signal chain midpoint |
| NO | Normally-open analog terminal | Open-circuit when IN = LOW; closes to COM only when IN = HIGH |
| NC | No connection | Not bonded internally-must be left unconnected or tied to GND for mechanical stability |
| IN | Digital control input | Active-high logic interface; drives internal gate drivers with TTL/CMOS thresholds |
| GND | Ground reference | Analog and digital return path; ESD diode cathode for all signal pins |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog operation | Supports full V+ to GND signal swing without distortion or clipping-eliminates need for external biasing in AC-coupled paths |
| Guaranteed on-resistance | 250Ω max across –40°C to +85°C ensures stable channel gain and predictable settling in precision instrumentation |
| Low charge injection (10pC) | Minimizes sampling error in switched-capacitor circuits and ADC multiplexers-critical for 12-bit+ resolution systems |
| Fast switching (tOFF = 50ns) | Enables time-division multiplexing of multiple sensor channels with <100ns dead time between acquisitions |
| TTL/CMOS logic compatibility | Validated at +5V supply-allows direct interfacing with microcontrollers, FPGAs, and logic families without glue logic |
Applications
| Battery-Powered Audio Routing | Low-Voltage Data Acquisition |
|---|---|
Use Scenario: Selecting between microphone inputs or headphone outputs in portable medical monitors and handheld test equipment. IC Role / Device Role / Timing Role: SPST analog switch isolating signal paths during power-down or channel selection-controlled by MCU GPIO. Use Value: 1nA off-leakage preserves battery life over months of standby; rail-to-rail support avoids DC-blocking capacitors in audio paths. |
Use Scenario: Multiplexing thermistor, RTD, or strain gauge signals into a single 16-bit SAR ADC in industrial sensor nodes. IC Role / Device Role / Timing Role: Precision analog switch front-end enabling sequential sampling with minimal crosstalk and offset drift. Use Value: 250Ω RON matched across channels ensures consistent gain scaling; 10pC charge injection limits measurement error to <0.01% FS. |
| PCMCIA Card Signal Switching | Modem Line Interface |
Use Scenario: Isolating legacy parallel ATA or serial UART lines during PCMCIA card insertion/ejection to prevent bus contention. IC Role / Device Role / Timing Role: Hot-swap protection switch decoupling host logic from peripheral I/O during card transitions. Use Value: Absolute maximum rating of ±10mA per pin withstands transient surges; SO-8 footprint matches standard PCMCIA layout constraints. |
Use Scenario: Routing analog line signals (FXS/FXO) between codec, transformer, and line driver in embedded VoIP modems. IC Role / Device Role / Timing Role: Bidirectional analog switch managing signal path configuration during call setup, mute, or loopback test modes. Use Value: –40°C to +85°C rating ensures reliability in unventilated modem enclosures; 10nA off-leakage prevents DC bias shift on transformer-coupled lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1419BRMZ | Single-supply +5V only; 0.7Ω RON; requires external logic-level translation for 3.3V control | Higher precision, lower RON-but limited to 5V systems and lacks extended temperature grade | Select when ultra-low on-resistance is required and supply is fixed at +5V; not suitable for battery voltage scaling or industrial temp range |
| TS5A23157DGSR | +1.65V to +5.5V supply; 0.9Ω RON; 15pC charge injection; –40°C to +85°C rated | Lower voltage operation and smaller SC70-6 package-but higher leakage (50nA @ +85°C) and no 8-pin SO option | Prefer for space-constrained, low-voltage designs where leakage tolerance >10nA; MAX4501ESA+ remains optimal for SO-8 layouts and tighter leakage budgets |
Compared with ADG1419BRMZ and TS5A23157DGSR, the MAX4501ESA+ uniquely balances wide supply flexibility (+2V to +12V), industrial temperature qualification, SO-8 compatibility, and sub-10nA leakage-making it the preferred choice for ruggedized, multi-rail analog signal routing where layout continuity and long-term stability are critical.
Availability
MAX4501ESA+ is available at Aetrix Electronics and suitable for battery-operated equipment, low-voltage data-acquisition systems, and communications circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4501ESA+ 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, and communications applications-with emphasis on high-reliability, low-power, and extended-temperature performance.
The MAX4501ESA+ belongs to Maxim's legacy analog switch family engineered for robust, rail-to-rail signal routing in resource-constrained and thermally demanding environments-prioritizing leakage control, supply flexibility, and logic interoperability over raw speed or ultra-low RON.
FAQ
What is the maximum supply voltage rating for MAX4501ESA+?
The MAX4501ESA+ has an absolute maximum V+ rating of +13V. Continuous operation is specified from +2V to +12V. Exceeding +13V risks permanent damage due to internal ESD diode breakdown. For reliable long-term use, maintain V+ within the recommended +2V to +12V range, especially under temperature extremes.
Does MAX4501ESA+ support bidirectional analog signal flow?
Yes, the MAX4501ESA+ supports fully bidirectional analog signal routing between COM and NO terminals. Its CMOS transmission-gate architecture imposes no directionality-signals pass with identical RON, bandwidth, and distortion characteristics regardless of direction, making it ideal for shared bus or duplex interface applications.
What is the guaranteed on-resistance for MAX4501ESA+ at +12V supply?
At +12V supply and TA = +25°C, the MAX4501ESA+ guarantees RON ≤ 200Ω. Over the full –40°C to +85°C range, RON remains ≤ 350Ω. This is confirmed in the +12V Electrical Characteristics table and enables predictable gain and settling behavior in high-voltage sensor interfaces.
Can MAX4501ESA+ be used with a +3.3V logic control signal while powered from +5V?
No-MAX4501ESA+ logic thresholds scale with V+. At +5V supply, VINH = 2.4V min and VINL = 0.8V max. A +3.3V logic high meets this, but applying +3.3V logic to a +3V V+ supply violates absolute maximum ratings. Always match logic supply to V+ or use a level shifter if V+ ≠ logic rail.
Is the SO-8 package of MAX4501ESA+ pin-compatible with older MAX4501CSA variants?
Yes-the MAX4501ESA+ (–40°C to +85°C) and MAX4501CSA (0°C to +70°C) share identical SO-8 pinout, footprint, and terminal functions. Both use the same COM–NO–IN–GND–V+ arrangement in pins 2–3–5–6–1. No PCB redesign is needed when upgrading from CSA to ESA+ for extended temperature operation.
MAX4501ESA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4501ESA+ FAQ
1.How can I place an order for MAX4501ESA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4501ESA+ 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 MAX4501ESA+ reliable?
The price and inventory of MAX4501ESA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4501ESA+ is usually 5 days.
3.What payment methods are accepted for MAX4501ESA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4501ESA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4501ESA+?
MAX4501ESA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4501ESA+ 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 MAX4501ESA+?
For technical support, including MAX4501ESA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4501ESA+ requirements.
6.How does Aetrix verify that MAX4501ESA+ is sourced from the original manufacturer or authorized distributors?
All MAX4501ESA+ 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 MAX4501ESA+ meets industry standards.
7.What is the process for return or replacement of MAX4501ESA+?
All MAX4501ESA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4501ESA+, 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 MAX4501ESA+ part is unused and in its original packaging.
Return procedure for MAX4501ESA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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