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Analog Devices Inc./Maxim Integrated MAX4641EUA
- Part No.:
- MAX4641EUA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4641EUA.pdf
- Description:
- IC SWITCH SPST-NO X 2 4OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:4,735
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Product details
Overview
MAX4641EUA from Maxim Integrated is a dual single-pole/single-throw (SPST) analog switch with two normally open (NO) channels, designed for low-voltage signal routing in battery-powered and precision analog systems. It operates from +1.8V to +5.5V, delivers 4Ω max on-resistance at +5V, 0.6Ω RON matching between channels, 1Ω RON flatness, and sub-20ns switching times - enabling high-fidelity audio routing and low-distortion data acquisition.
For engineers reviewing the MAX4641EUA datasheet, MAX4641EUA pinout, MAX4641EUA application, or MAX4641EUA equivalent, this page provides verified electrical specifications, µMAX package layout, real-world use scenarios in portable instrumentation and communications circuits, and validated alternative parts with documented functional and parametric differences.
Technical Context
The MAX4641EUA integrates two independent CMOS SPST switches with rail-to-rail analog signal handling and logic-level translation circuitry that accepts TTL/CMOS inputs only at +5V supply but functions across the full +1.8V to +5.5V range. Its internal ESD protection diodes clamp analog pins to V+ and GND, defining leakage behavior over temperature.
Each channel exhibits bidirectional conduction, with identical NO_ and COM_ terminals electrically interchangeable; off-capacitance is specified separately for NO_, NC_, and COM_ (7pF each), while charge injection is tightly controlled at 2pC typical - critical for sample-and-hold accuracy and low-THD audio paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.8V to +5.5V - enables direct integration into Li-ion–powered systems without level-shifting. |
| On-Resistance (RON) | 4Ω max at +5V - ensures minimal signal attenuation and voltage drop in 50Ω–600Ω impedance paths. |
| RON Matching | 0.6Ω max at +5V - guarantees matched gain/loss between dual channels in differential or parallel signal paths. |
| RON Flatness | 1Ω max at +5V - maintains consistent insertion loss across full 0V to V+ analog swing, critical for wide-dynamic-range ADC drivers. |
| Switching Time (tON/tOFF) | 18ns/12ns typ - supports >25MHz digital control rates and fast multiplexing in real-time data acquisition. |
| Leakage Current | <0.35nA over –40°C to +85°C - preserves DC accuracy in high-impedance sensor front-ends and battery-monitoring circuits. |
| Total Harmonic Distortion | 0.018% - meets fidelity requirements for line-level audio routing and precision instrumentation amplifiers. |
Pinout & Package
The MAX4641EUA is housed in an 8-pin µMAX package (3mm × 3mm, 0.8mm height), thermally enhanced for low-power operation in space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5 | NO1, NO2 | Normally open analog switch terminals - conduct only when corresponding IN_ is high; bidirectional signal path with 7pF off-capacitance. |
| 2, 6 | IN1, IN2 | Logic control inputs - TTL/CMOS-compatible at +5V; drive internal gate drivers to turn NO_ channels ON/OFF. |
| 3, 7 | GND | Analog and digital ground reference - must be low-impedance; shared return for supply and signal paths. |
| 4 | COM1 | Common terminal for first SPST switch - connects to NO1 when IN1 = high; bidirectional and interchangeable with NO1. |
| 8 | V+ | Positive supply input - requires local 0.1µF ceramic bypass to GND; powers analog switches and logic translators. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal range | Supports full 0V to V+ swing without clipping - eliminates need for external biasing in AC-coupled audio or DC-coupled sensor interfaces. |
| Low 2pC charge injection | Minimizes voltage glitch during switching - essential for maintaining accuracy in sample-and-hold and integrator circuits. |
| –97dB crosstalk at 1MHz | Prevents signal coupling between dual channels - preserves channel isolation in stereo audio routing or dual ADC sampling. |
| –80dB off-isolation at 1MHz | Blocks unwanted signal feedthrough when switch is OFF - critical for preventing interference in RF front-end or communication multiplexers. |
| <0.01µW quiescent power | Reduces standby current to sub-nanoamp level - extends battery life in always-on monitoring devices and IoT endpoints. |
Applications
| Battery-Operated Portable Instrumentation | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing sensor outputs (thermocouples, RTDs) into a low-power SAR ADC in handheld multimeters or environmental loggers. IC Role / Device Role / Timing Role: Dual SPST switch isolating individual sensor paths under microcontroller GPIO control; tON/tOFF < 20ns enables synchronized sampling. Use Value: 4Ω RON and 0.6Ω matching minimize gain error between channels; <0.35nA leakage prevents DC offset drift in high-Z sensor bridges. | Use Scenario: Selecting between microphone inputs or routing line-level signals in Bluetooth headsets and voice-controlled remotes. IC Role / Device Role / Timing Role: Bidirectional analog switch managing stereo left/right paths with rail-to-rail support for ±1Vpk audio waveforms. Use Value: 0.018% THD and –97dB crosstalk preserve stereo separation and fidelity; 1.8V operation matches modern ultra-low-power codecs. |
| Low-Voltage Data-Acquisition Systems | Communications Circuit Switching |
Use Scenario: Channel selection in 12-bit+ data loggers powered by coin cells or energy-harvesting sources. IC Role / Device Role / Timing Role: Precision analog switch front-ending successive-approximation ADCs; RON flatness ≤1Ω ensures linear response across full input range. Use Value: 2pC charge injection prevents hold capacitor corruption; low leakage avoids settling-time degradation in high-resolution conversions. | Use Scenario: Signal path reconfiguration in ISM-band transceivers (e.g., 2.4GHz BLE modules) for antenna diversity or RF test point access. IC Role / Device Role / Timing Role: Low-capacitance (7pF off-state) switch enabling minimal RF loading on 50Ω transmission lines during calibration or band switching. Use Value: –80dB off-isolation suppresses LO leakage and intermodulation; small µMAX footprint saves PCB area near RF sections. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4642EUA | Two normally closed (NC) switches instead of NO; identical RON, leakage, and timing specs. | Suitable where default-closed signal path is required (e.g., fail-safe sensor disconnect). | Select MAX4642EUA only when NC functionality is mandatory; pinout and supply behavior are identical. |
| ADG702BRMZ | 4.5Ω RON max at +5V; 15ns tON; 10nA max leakage at +85°C - higher leakage than MAX4641EUA's 0.35nA. | Acceptable in less demanding industrial controls but not in ultra-low-leakage medical or precision metrology. | Choose ADG702BRMZ if sourcing from Analog Devices preferred; verify leakage impact in high-Z circuits before substitution. |
Compared with MAX4641EUA, MAX4642EUA offers identical performance with inverted logic state (NC vs NO), while ADG702BRMZ trades lower cost for higher leakage and slightly slower switching - making MAX4641EUA optimal for battery-critical, low-distortion, and high-accuracy dual-channel routing.
Availability
MAX4641EUA is available at Aetrix Electronics and suitable for battery-operated equipment, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply across extended production lifecycles.
Supply support for MAX4641EUA 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.
The MAX4641EUA belongs to Maxim's high-speed, low-voltage analog switch product line, engineered specifically for precision signal routing in space- and power-constrained portable electronics where rail-to-rail operation and nanoscale leakage are design-critical.
FAQ
What is the maximum supply voltage rating for the MAX4641EUA?
The MAX4641EUA has an absolute maximum supply voltage (V+) of +6V, but its operational specification is guaranteed from +1.8V to +5.5V. Operating continuously above +5.5V risks permanent damage per the Absolute Maximum Ratings table. For reliable long-term function, maintain V+ within the +4.5V to +5.5V range when referencing datasheet performance metrics like 4Ω RON and 0.6Ω matching - all tested and characterized in this window. The MAX4641EUA must never be exposed to V+ exceeding +6V, even transiently.
Does the MAX4641EUA support bidirectional analog signal flow?
Yes, the MAX4641EUA supports fully bidirectional analog signal flow on all NO_ and COM_ terminals - meaning signals can pass from NO1 to COM1 or COM1 to NO1 with identical RON, leakage, and distortion characteristics. This is explicitly confirmed in the Pin Description note stating "NO_, NC_, and COM_ pins are identical and interchangeable." However, the device does not support simultaneous conduction across both channels in opposite directions without external isolation, and the 7pF off-capacitance applies equally regardless of signal direction - a key enabler for AC-coupled audio and sensor interfaces.
What is the guaranteed RON flatness specification for the MAX4641EUA at +3V supply?
At +3V supply, the MAX4641EUA guarantees RON flatness of 3.0Ω max over the full analog signal range (0V to V+), as specified in the Electrical Characteristics table for Single +3V Supply. This value is higher than the 1Ω max at +5V due to increased channel resistance at lower VGS, but remains tightly controlled to ensure predictable insertion loss in 3.3V systems such as USB-powered instrumentation or low-voltage FPGA I/O expansion. The MAX4641EUA's RON flatness is measured as the difference between maximum and minimum on-resistance across the analog range - directly impacting harmonic distortion and gain linearity.
Can the MAX4641EUA be used with a +1.8V logic control signal?
No - the MAX4641EUA's logic inputs (IN1, IN2) require TTL/CMOS-compatible thresholds only when V+ = +5V (VIH = 2.4V min, VIL = 0.8V max). At +1.8V supply, the internal logic-level translator is not guaranteed to recognize standard 1.8V logic levels; the datasheet states "TTL/CMOS compatibility is only valid for operation using a +5V supply." To drive the MAX4641EUA from a +1.8V microcontroller, a level shifter or buffer with compatible output swing must be used. The MAX4641EUA itself will operate correctly at +1.8V V+, but its IN_ pins need ≥2.4V high-level signals for reliable switching.
Is the MAX4641EUA pin-compatible with the MAX4641EGA QFN variant?
No - the MAX4641EUA (8-pin µMAX) and MAX4641EGA (8-pin QFN 3×3mm) share identical electrical functionality and pin numbering, but their physical footprints, thermal pads, and solder profiles differ. The µMAX uses a narrow-body SO-style outline with gull-wing leads, while the QFN has a bottom-exposed thermal pad and no leads. PCB layout, reflow profile, and mechanical mounting are not interchangeable. Although both packages list the same pin functions (e.g., Pin 1 = NO1), the MAX4641EUA cannot be substituted for MAX4641EGA without board redesign - they are functionally equivalent but not mechanically or thermally pin-compatible.
MAX4641EUA 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:
- 2
- On-State Resistance (Max):
- 4Ohm
- Channel-to-Channel Matching (ΔRon):
- 200mOhm
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 15ns, 8ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 7pF, 7pF
- Current - Leakage (IS(off)) (Max):
- 250pA
- Crosstalk:
- -97dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX4641EUA FAQ
1.How can I place an order for MAX4641EUA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4641EUA 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 MAX4641EUA reliable?
The price and inventory of MAX4641EUA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4641EUA is usually 5 days.
3.What payment methods are accepted for MAX4641EUA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4641EUA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4641EUA?
MAX4641EUA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4641EUA 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 MAX4641EUA?
For technical support, including MAX4641EUA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4641EUA requirements.
6.How does Aetrix verify that MAX4641EUA is sourced from the original manufacturer or authorized distributors?
All MAX4641EUA 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 MAX4641EUA meets industry standards.
7.What is the process for return or replacement of MAX4641EUA?
All MAX4641EUA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4641EUA, 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 MAX4641EUA part is unused and in its original packaging.
Return procedure for MAX4641EUA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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