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Analog Devices Inc./Maxim Integrated MAX4501EPA
- Part No.:
- MAX4501EPA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4501EPA.pdf
- Description:
- IC SWITCH SPST-NOX1 250OHM 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,738
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Product details
Overview
MAX4501EPA from Maxim Integrated is a single-pole/single-throw (SPST), normally-open (NO), low-voltage CMOS analog switch rated for -40°C to +85°C operation in an 8-pin plastic DIP package. It supports single-supply operation from +2V to +12V, delivers rail-to-rail analog signal handling, guarantees 250Ω on-resistance at +5V, and exhibits only 1nA off-leakage at +25°C - ideal for precision low-power signal routing in portable instrumentation.
For engineers reviewing the MAX4501EPA datasheet, MAX4501EPA pinout, MAX4501EPA application, or MAX4501EPA equivalent, key selection criteria include guaranteed on-resistance over temperature, ultra-low leakage across voltage and temperature ranges, TTL/CMOS logic compatibility at +5V, fast switching (75ns tON, 50ns tOFF), and charge injection of just 10pC - all critical for audio routing, battery-powered data acquisition, and communications interface design.
Technical Context
The MAX4501EPA implements a fully CMOS-based SPST switch architecture with separate V+ and GND supply pins powering both analog signal paths and internal logic-level translators. Its digital input uses fixed 0.8V/2.4V thresholds for robust TTL/CMOS compatibility when operated from a +5V supply.
Analog terminals (COM, NO, IN) feature bidirectional ESD-protection diodes to V+ and GND, enabling rail-to-rail signal swing but requiring strict adherence to absolute maximum ratings - no analog signal may exceed V+ or fall below GND. Leakage current originates solely from reverse-biased ESD diodes and varies with signal voltage, not inter-terminal conduction.
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 level-shifting. |
| On-Resistance (RON) | 250Ω max at +5V, +25°C - ensures minimal signal attenuation and gain error in precision sensor or audio signal paths. |
| Off-Leakage Current | 1nA max at +25°C, 10nA max at +85°C - preserves accuracy in high-impedance measurement circuits (e.g., pH sensors, thermocouples). |
| Switching Speed | tON = 75ns, tOFF = 50ns (RL = 1kΩ, CL = 35pF) - supports multiplexing up to ~5MHz in data-acquisition front-ends. |
| Charge Injection | 10pC max - limits voltage glitch on sampled-hold nodes, critical for ADC driver stages and sample-and-hold circuits. |
| Logic Thresholds | VINL ≤ 0.8V, VINH ≥ 2.4V at +5V supply - ensures reliable control from standard 5V microcontrollers and logic families. |
| Analog Signal Range | Rail-to-rail (GND to V+) - allows full utilization of ADC input range or DAC output swing without clipping. |
Pinout & Package
MAX4501EPA is housed in an 8-pin plastic DIP package (0.300" wide), compatible with through-hole prototyping and industrial PCB assembly. Pin assignments are identical to the SO package variant and optimized for noise-sensitive analog routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | V+ | Positive supply for analog and digital circuitry; sets upper rail for analog signals and logic thresholds. |
| 2 | COM | Common analog terminal - bidirectional signal path; connects to NO when enabled. |
| 3 | N.C. | No internal connection - must be left unconnected; electrically isolated from die. |
| 4 | N.C. | No internal connection - must be left unconnected; electrically isolated from die. |
| 5 | NO | Normally-open analog terminal - forms closed path with COM only when IN is HIGH. |
| 6 | V+ | Redundant V+ pin - tied internally to Pin 1; improves power delivery and reduces supply impedance. |
| 7 | IN | Digital control input - TTL/CMOS-compatible; HIGH enables switch, LOW disables it. |
| 8 | GND | Analog and digital ground reference - must be low-impedance and separated from noisy digital returns. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog operation | Supports full-swing signals from GND to V+, eliminating level-shifting in mixed-voltage systems. |
| Guaranteed 250Ω RON | Ensures predictable channel gain and minimal THD in audio and sensor signal chains at +5V. |
| 1nA off-leakage at +25°C | Enables >100MΩ effective isolation in high-Z applications like electrophysiology amplifiers or leak detection. |
| 10pC charge injection | Reduces sampling error in precision ADC interfaces - critical for 12-bit+ resolution systems. |
| 75ns turn-on / 50ns turn-off | Permits time-multiplexed signal routing in multi-channel DAQ systems operating up to 5 MSPS. |
Applications
| Audio Signal Routing | Portable Data Acquisition |
|---|---|
Use Scenario: Selecting between microphone inputs or routing line-level audio to multiple codec channels in handheld recorders. IC Role / Device Role / Timing Role: SPST analog switch controlling signal path integrity and isolation between sources. Use Value: Rail-to-rail operation preserves dynamic range; low charge injection prevents audible pop/click during switching. |
Use Scenario: Multiplexing thermistor, RTD, or strain gauge outputs into a single precision ADC in field-deployable sensors. IC Role / Device Role / Timing Role: Low-leakage analog switch isolating high-impedance sensor nodes during idle cycles. Use Value: 1nA off-leakage minimizes measurement offset drift; 250Ω RON ensures stable gain calibration. |
| PCMCIA Interface Switching | Modem Analog Front-End |
Use Scenario: Enabling/disabling analog lines (e.g., audio codec, modem interface) on PCMCIA cards based on host configuration. IC Role / Device Role / Timing Role: Voltage-tolerant SPST switch managing hot-plug analog connectivity under +3.3V/+5V system control. Use Value: Single +5V supply compatibility eliminates auxiliary regulators; 0.8V/2.4V thresholds ensure reliable control from CardBus logic. |
Use Scenario: Isolating analog line drivers/receivers during modem sleep mode or reconfiguration sequences. IC Role / Device Role / Timing Role: Normally-open switch breaking analog path to prevent signal coupling or DC loading during standby. Use Value: 10nA max off-leakage at +85°C maintains line integrity in thermally stressed telecom environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1201BRZ | Higher RON (200Ω typ at +5V, but 350Ω max), wider temp range (-40°C to +125°C), higher charge injection (15pC). | Better suited for industrial environments requiring extended temperature operation; less optimal for low-distortion audio. | Select ADG1201BRZ when operating above +85°C or needing enhanced ESD robustness (±4kV HBM); verify RON impact on gain accuracy. |
| TS5A23157DCKR | Lower RON (0.9Ω typ at +5V), but limited supply range (+1.65V to +5.5V), higher off-leakage (100nA at +85°C). | Ideal for ultra-low-loss 3.3V systems; unsuitable for 9V/12V battery rails or precision high-Z sensing. | Choose TS5A23157DCKR for portable 3.3V designs where on-resistance dominates performance; avoid in >+5.5V or sub-10nA leakage applications. |
Compared with MAX4501EPA, ADG1201BRZ offers extended temperature capability at the cost of higher charge injection and slightly higher guaranteed RON, while TS5A23157DCKR delivers dramatically lower on-resistance but sacrifices supply flexibility and leakage performance - making MAX4501EPA the balanced choice for 2V–12V, low-leakage, rail-to-rail applications.
Availability
MAX4501EPA 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 MAX4501EPA 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 MAX4501EPA belongs to Maxim's precision analog switch product line, engineered for low-leakage, rail-to-rail signal routing in portable and measurement-critical systems where supply flexibility and signal fidelity are essential.
FAQ
What is the maximum supply voltage rating for MAX4501EPA?
The MAX4501EPA has an absolute maximum V+ rating of +13V. However, its specified operational range is +2V to +12V. Operating at +12V is fully supported per datasheet electrical characteristics - including guaranteed on-resistance (200Ω max), leakage (50nA max at +85°C), and switching speed - making MAX4501EPA suitable for 9V and 12V battery-powered systems without derating.
Does MAX4501EPA support bidirectional analog signal flow?
Yes, MAX4501EPA supports fully bidirectional analog signal routing. The COM and NO terminals are functionally symmetric - either can serve as input or output. This is confirmed by the datasheet's "Pin Description" note stating "NO, NC, and COM pins are identical and interchangeable" and by test circuits showing signal direction reversal with worst-case values recorded - a key enabler for flexible PCB layout and shared signal-path architectures.
What is the logic compatibility of MAX4501EPA at +5V supply?
At +5V supply, MAX4501EPA features TTL/CMOS-compatible logic thresholds: VINL ≤ 0.8V (guaranteed logic LOW) and VINH ≥ 2.4V (guaranteed logic HIGH). This ensures reliable interfacing with standard 5V microcontrollers, FPGAs, and logic families without external level shifters - a design advantage explicitly validated in the "Applications Information" section of the datasheet.
How does temperature affect the on-resistance of MAX4501EPA?
MAX4501EPA's on-resistance increases with temperature and decreasing supply voltage. At +5V, RON is guaranteed ≤250Ω at +25°C and ≤350Ω over the full -40°C to +85°C range. Graph MAX4501-01 shows RON rising from ~120Ω at -55°C to ~220Ω at +125°C at VCOM = 3V - confirming that MAX4501EPA maintains stable, predictable conduction across its rated industrial temperature range.
Can MAX4501EPA be used with a +3V supply?
Yes, MAX4501EPA is fully specified for +3V operation (V+ = +3.0V to +3.6V). Electrical characteristics include guaranteed RON ≤800Ω, tON/tOFF ≤500ns/300ns, and leakage ≤10nA at +85°C. Its 0.8V/2.4V logic thresholds remain valid, ensuring compatibility with +3V logic - though designers must verify that 2.4V meets the driving device's VOH specification, as some 3.3V logic families specify VOH(min) = 2.4V.
MAX4501EPA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
MAX4501EPA FAQ
1.How can I place an order for MAX4501EPA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4501EPA 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 MAX4501EPA reliable?
The price and inventory of MAX4501EPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4501EPA is usually 5 days.
3.What payment methods are accepted for MAX4501EPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4501EPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4501EPA?
MAX4501EPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4501EPA 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 MAX4501EPA?
For technical support, including MAX4501EPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4501EPA requirements.
6.How does Aetrix verify that MAX4501EPA is sourced from the original manufacturer or authorized distributors?
All MAX4501EPA 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 MAX4501EPA meets industry standards.
7.What is the process for return or replacement of MAX4501EPA?
All MAX4501EPA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4501EPA, 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 MAX4501EPA part is unused and in its original packaging.
Return procedure for MAX4501EPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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