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Analog Devices Inc./Maxim Integrated MAX4501CSA
- Part No.:
- MAX4501CSA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MAX4501CSA.pdf
- Description:
- IC SWITCH SPST-NOX1 250OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,957
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Product details
Overview
MAX4501CSA from Maxim Integrated is a normally-open (NO), single-pole/single-throw (SPST), CMOS analog switch optimized for low-voltage signal routing. It operates from a single +2V to +12V supply, supports rail-to-rail analog signals, exhibits 250Ω on-resistance at +5V, 1nA off-leakage at +25°C, and delivers 75ns turn-on time - enabling precision switching in battery-powered audio and data-acquisition systems.
For engineers reviewing the MAX4501CSA datasheet, MAX4501CSA pinout, MAX4501CSA application, or MAX4501CSA equivalent, key selection criteria include guaranteed on-resistance over temperature, TTL/CMOS logic compatibility at +5V, low charge injection (10pC), leakage performance across -40°C to +85°C, and SOT23-5 package suitability for space-constrained PCB layouts.
Technical Context
The MAX4501CSA uses a CMOS transmission-gate architecture with internal logic-level translation, allowing direct interface to +5V TTL/CMOS inputs while operating across +2V–+12V analog supplies. Its V+ and GND pins power both analog switches and digital control circuitry, with ESD diodes clamping all signal terminals to these rails.
No internal substrate connection exists beyond V+; analog paths are fully bidirectional between COM and NO terminals, with no internal connection to NC (which is unassigned in MAX4501). Pinout follows standard SOT23-5 layout: IN (digital control), V+, GND, NO, and COM - with N.C. omitted per package variant.
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 or regulator-fed systems without level-shifting. |
| On-Resistance | 250Ω max at +5V, TA = +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 nodes (e.g., ADC front-ends). |
| Switching Speed | tON = 75ns, tOFF = 50ns (RL = 1kΩ, CL = 35pF) - supports multiplexing of moderate-speed data streams up to ~5MHz. |
| Charge Injection | 10pC typical - limits voltage glitch on sampled-hold capacitors, critical for low-distortion data acquisition. |
| Logic Compatibility | VINH = 2.4V, VINL = 0.8V at +5V supply - ensures reliable drive from standard 5V microcontrollers and logic families. |
| Analog Signal Range | Rail-to-rail (GND to V+) - allows full utilization of supply headroom for unipolar or bipolar signal routing. |
Pinout & Package
SOT23-5 surface-mount package (5-pin, 1.6mm × 1.6mm footprint), lead-free and RoHS-compliant, optimized for compact portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Digital control input | Active-high logic signal enabling switch closure; compatible with 0.8V/2.4V thresholds at +5V supply. |
| 2 - V+ | Positive supply rail | Powers analog switch core and internal logic; sets upper limit of routable analog signal range. |
| 3 - GND | Ground reference | Reference for digital logic and lower bound of analog signal range; must be low-impedance for leakage control. |
| 4 - NO | Normally-open analog terminal | Open-circuit when IN = LOW; connects to COM only when IN = HIGH - defines SPST NO function. |
| 5 - COM | Common analog terminal | Bidirectional signal path node; connects to NO when switch is enabled, isolated otherwise. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation | Eliminates need for dual ±5V supplies - reduces BOM count and PCB area in portable instrumentation. |
| Guaranteed on-resistance | 250Ω max at +5V ensures predictable channel gain and THD in audio routing applications. |
| Low off-leakage current | 1nA at +25°C maintains DC accuracy in high-Z sensor interfaces and sample-and-hold circuits. |
| Fast switching with low charge injection | 75ns/50ns timing + 10pC charge injection minimizes settling error in multi-channel data acquisition. |
| TTL/CMOS logic compatibility | Direct interfacing to 5V microcontrollers and FPGAs without external level shifters or pull-ups. |
Applications
| Battery-Powered Audio Routing | Low-Voltage Data Acquisition |
|---|---|
Use Scenario: Signal path selection in handheld medical ultrasound or portable audio mixers powered by single Li-ion cells. IC Role / Device Role / Timing Role: SPST analog switch isolating microphone preamp outputs or routing DAC outputs to headphone amplifiers. Use Value: Rail-to-rail operation preserves full dynamic range; 1nA off-leakage prevents DC offset drift in AC-coupled audio paths. |
Use Scenario: Multiplexing thermistor, RTD, or bridge-sensor inputs into a 16-bit SAR ADC in industrial condition monitoring. IC Role / Device Role / Timing Role: Low-leakage analog switch front-end enabling high-impedance sensor connections without calibration drift. Use Value: 250Ω on-resistance contributes <0.01% gain error at 25kΩ source impedance; 10pC charge injection limits sampling error to <1 LSB. |
| PCMCIA Card Signal Switching | Cellular Phone Baseband Routing |
Use Scenario: Isolating legacy parallel I/O lines or configuring analog audio codec interfaces in PCMCIA expansion cards. IC Role / Device Role / Timing Role: Voltage-tolerant SPST switch managing hot-plug signal integrity and preventing back-drive during card insertion. Use Value: +2V to +12V operation accommodates variable host-supply conditions; 50ns tOFF ensures clean break-before-make transitions. |
Use Scenario: Routing audio bandpass filters, speaker/mic paths, or antenna diversity signals in GSM/WCDMA baseband subsystems. IC Role / Device Role / Timing Role: Low-distortion analog switch handling 20Hz–20kHz voiceband signals with minimal crosstalk and THD. Use Value: Off-isolation >−100dB at 100kHz suppresses RF coupling; rail-to-rail support avoids clipping in 2.8V–3.3V supply domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1201BRMZ | Higher on-resistance (300Ω typ at +5V), wider temp range (−40°C to +125°C), 10nA off-leakage at +85°C | Better suited for extended-temperature industrial control; less optimal for ultra-low-leakage medical sensors | Select ADG1201BRMZ if operating above +85°C or requiring MIL-STD-883 qualified variants. |
| TS5A23157DCUR | Lower on-resistance (0.9Ω typ at +3.3V), but rated only to +85°C and higher charge injection (15pC) | Preferred for high-speed digital signal routing below 1MHz; not recommended for precision analog sampling | Choose TS5A23157DCUR only for cost-sensitive, low-voltage (<3.6V), non-precision applications. |
Compared with ADG1201BRMZ and TS5A23157DCUR, the MAX4501CSA uniquely balances sub-250Ω on-resistance, 1nA off-leakage at room temperature, and proven rail-to-rail fidelity across +2V–+12V - making it the preferred choice for battery-operated instrumentation where leakage, supply flexibility, and signal integrity are co-critical.
Availability
MAX4501CSA 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 commercial and extended temperature grades.
Supply support for MAX4501CSA 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 fabless semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer markets.
The MAX4501CSA belongs to Maxim's precision analog switch product line, designed specifically for low-voltage, low-leakage, rail-to-rail signal routing in portable and space-constrained systems where supply flexibility and signal fidelity are essential.
FAQ
What is the maximum supply voltage rating for the MAX4501CSA?
The MAX4501CSA has an absolute maximum V+ rating of +13V, but its specified operational range is +2V to +12V. Operating continuously at +12V is supported per datasheet electrical characteristics, with on-resistance dropping to 200Ω and off-leakage remaining within 50nA at +85°C. Exceeding +13V risks permanent damage due to internal ESD diode breakdown.
Does the MAX4501CSA support bidirectional analog signal flow?
Yes, the MAX4501CSA supports fully bidirectional signal routing between COM and NO terminals. Its CMOS transmission-gate structure imposes no inherent directionality - voltage, current, or frequency-dependent behavior is symmetric regardless of signal source/sink orientation, as confirmed in the Pin Description section and Typical Operating Characteristics.
What is the thermal performance of the MAX4501CSA in SOT23-5 package?
The MAX4501CSA in SOT23-5 has a thermal resistance θJA of 175°C/W and a maximum continuous power dissipation of 571mW at +70°C (derated by 7.1mW/°C above ambient). At full +12V supply with 1mA load, power dissipation remains under 15mW - well within safe operating limits even in sealed enclosures up to +70°C ambient.
Can the MAX4501CSA be used with a 3.3V logic supply while operating from a 5V analog rail?
No - the MAX4501CSA does not support independent logic and analog supplies. Its IN pin thresholds scale with V+; at +5V V+, VINH is 2.4V and VINL is 0.8V, matching 3.3V logic high levels. However, applying 3.3V to V+ while driving IN from 5V TTL violates absolute maximum ratings and may damage the part. Use only unified supply configurations.
Is the MAX4501CSA pin-compatible with the MAX4502CSA?
No - the MAX4501CSA (normally open) and MAX4502CSA (normally closed) share identical pinouts and packages but differ in internal switch configuration. Swapping them requires logic inversion of the IN signal to maintain functional behavior; they are functional alternatives, not pin-compatible drop-in replacements.
MAX4501CSA 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX4501CSA FAQ
1.How can I place an order for MAX4501CSA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4501CSA 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 MAX4501CSA reliable?
The price and inventory of MAX4501CSA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4501CSA is usually 5 days.
3.What payment methods are accepted for MAX4501CSA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4501CSA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4501CSA?
MAX4501CSA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4501CSA 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 MAX4501CSA?
For technical support, including MAX4501CSA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4501CSA requirements.
6.How does Aetrix verify that MAX4501CSA is sourced from the original manufacturer or authorized distributors?
All MAX4501CSA 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 MAX4501CSA meets industry standards.
7.What is the process for return or replacement of MAX4501CSA?
All MAX4501CSA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4501CSA, 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 MAX4501CSA part is unused and in its original packaging.
Return procedure for MAX4501CSA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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