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Analog Devices Inc./Maxim Integrated MAX4636EUB+
- Part No.:
- MAX4636EUB+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4636EUB+.pdf
- Description:
- IC SWITCH SPDT X 2 4OHM 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:1,519
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Product details
Overview
MAX4636EUB+ from Maxim Integrated is a dual single-pole/double-throw (SPDT) CMOS analog switch with 4Ω max on-resistance at +5V, 14ns max turn-on time, and rail-to-rail signal handling from +1.8V to +5.5V supply. It operates in battery-powered audio routing, low-voltage data acquisition, and relay replacement circuits where low distortion (0.1% THD), high off-isolation (–65dB at 1MHz), and guaranteed break-before-make switching are required.
For engineers reviewing the MAX4636EUB+ datasheet, MAX4636EUB+ pinout, MAX4636EUB+ application, or MAX4636EUB+ equivalent, key selection criteria include on-resistance flatness (≤1Ω at +5V), channel matching (≤0.2Ω), crosstalk (–67dB), and µMAX package compatibility for space-constrained PCB layouts.
Technical Context
The MAX4636EUB+ implements two independent SPDT switches using CMOS process technology, each with noninverting logic control (IN1/IN2 directly enable NO→COM path). Its architecture guarantees break-before-make timing (≤1ns) and supports bidirectional analog signal flow across the full V+ to GND range without level shifting.
It features rail-to-rail input/output capability, low charge injection (2pC typical at +5V), and matched on-resistance between channels-critical for precision multiplexing in sample-and-hold and communications circuits where signal integrity and channel-to-channel consistency must be preserved across temperature (–40°C to +85°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (max) | 4Ω at +5V supply - enables ≤10mA continuous current per channel with <40mV drop at full load |
| On-Resistance Match | 0.2Ω max - ensures ≤0.5% gain error when routing differential or matched signals |
| Turn-On / Turn-Off Time | 14ns / 6ns max - supports >50MHz digital control rates and preserves fast analog edge fidelity |
| Rail-to-Rail Signal Range | 0V to V+ - eliminates external biasing for AC-coupled audio/video signals referenced to supply rails |
| Off-Isolation | –65dB at 1MHz - suppresses coupling between inactive channels in multi-source routing applications |
| Crosstalk | –67dB at 1MHz - prevents interference between adjacent switched paths in dense signal matrices |
| THD | 0.1% - maintains audio fidelity in line-level and headphone driver signal paths |
Pinout & Package
The MAX4636EUB+ is housed in a 10-pin µMAX package (3.0mm × 3.0mm × 0.8mm, no exposed pad), optimized for high-density analog routing with minimal board footprint and thermal resistance (330mW at +70°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN1 | Logic control input for Switch 1 | Noninverting enable: high = connects COM1 to NO1; low = connects COM1 to NC1 |
| 2 NO1 | Normally open terminal of Switch 1 | Open-circuit path when IN1 = low; bidirectional analog node with 9pF off-capacitance |
| 3 GND | Ground reference | Return path for supply and signal currents; must be low-impedance for THD and crosstalk performance |
| 4 NO2 | Normally open terminal of Switch 2 | Independent SPDT path mirroring NO1; matched RON and capacitance to Switch 1 |
| 5 IN2 | Logic control input for Switch 2 | Noninverting enable for second switch; compatible with 1.8V–5.5V logic levels regardless of V+ |
| 6 COM2 | Common terminal of Switch 2 | Bidirectional analog I/O node; supports rail-to-rail voltage swing up to V+ |
| 7 NC2 | Normally closed terminal of Switch 2 | Connected to COM2 when IN2 = low; complements NO2 for SPDT signal polarity selection |
| 8 V+ | Positive supply input | +1.8V to +5.5V operation; powers internal logic and switch FETs; decoupling required near pin |
| 9 NC1 | Normally closed terminal of Switch 1 | Complementary path to NO1; enables true SPDT functionality without external components |
| 10 COM1 | Common terminal of Switch 1 | Primary analog interface point for first switch; shares same RON flatness and leakage specs as COM2 |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail® signal handling | Supports analog inputs from GND to V+ without clipping or distortion, enabling direct interfacing with op-amp outputs and ADC inputs |
| Guaranteed break-before-make | ≤1ns interval prevents momentary shorting between NO and NC paths during switching-essential for avoiding signal glitches in multiplexed systems |
| Low charge injection (2pC typ) | Minimizes voltage step errors in sample-and-hold and switched-capacitor circuits, preserving DC accuracy over temperature |
| Logic-level tolerant inputs | IN1/IN2 accept 0V–5.5V logic signals independent of V+, allowing seamless integration with mixed-supply FPGA or microcontroller GPIO |
| Matched on-resistance (≤0.2Ω) | Ensures consistent gain and phase response across dual channels in stereo audio or differential sensor routing |
Applications
| Audio Signal Routing | Low-Voltage Data Acquisition |
|---|---|
|
Use Scenario: Selecting between multiple microphone or line-level inputs in portable audio codecs. IC Role / Device Role / Timing Role: Dual SPDT analog switch providing channel-select function with <14ns switching and 0.1% THD. Use Value: Enables zero-crossing mute and glitch-free source switching while maintaining SNR >95dB in battery-powered devices. |
Use Scenario: Multiplexing sensor outputs (thermocouples, RTDs) into a single ADC input in industrial IoT nodes. IC Role / Device Role / Timing Role: Precision analog switch with matched RON and low leakage (<0.3nA) for accurate ratiometric measurements. Use Value: Eliminates need for discrete relays or higher-RON alternatives, reducing power budget impact and PCB area by >60%. |
| Relay Replacement | Sample-and-Hold Circuits |
|
Use Scenario: Replacing electromechanical relays in automated test equipment for signal path configuration. IC Role / Device Role / Timing Role: Solid-state SPDT switch with 100M-cycle lifetime, no contact bounce, and 30mA continuous current rating. Use Value: Delivers >100x faster switching than mechanical relays and eliminates wear-out failure modes in high-cycle applications. |
Use Scenario: Holding analog voltage samples prior to digitization in precision instrumentation front-ends. IC Role / Device Role / Timing Role: Low-charge-injection (2pC), low-leakage (<0.3nA) switch isolating hold capacitor from source impedance variations. Use Value: Limits aperture error to <0.01% and holds voltage drift to <1µV/s, supporting 16-bit effective resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4636ETB+ | Same electrical specs, but in 3mm × 3mm thin QFN (exposed pad not present); 1951mW power dissipation vs. 330mW for µMAX | Better thermal performance in high-duty-cycle or ambient >70°C environments; requires different land pattern and reflow profile | Select MAX4636ETB+ when board layout allows QFN footprint and thermal management justifies package change |
| ADG736BRMZ-REEL | 4.5Ω max RON at +5V, 12ns tON, but only 1.8V–5.5V logic-compatible (not level-tolerant); no guaranteed break-before-make | Suitable for lower-cost, non-critical routing where sub-ns switching integrity is not required | Choose ADG736BRMZ-REEL only if logic-level tolerance and BMB timing are not design requirements |
Compared with MAX4636ETB+, the MAX4636EUB+ offers identical switching performance in a smaller, leaded µMAX package ideal for prototyping and legacy layouts-but with lower thermal headroom. Versus ADG736BRMZ-REEL, MAX4636EUB+ provides superior logic-level flexibility and guaranteed break-before-make, critical for glitch-sensitive signal chains.
Availability
MAX4636EUB+ is available at Aetrix Electronics and suitable for battery-powered equipment, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply and long-term manufacturability.
Supply support for MAX4636EUB+ 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 high-performance analog and mixed-signal ICs for precision, power, and interface applications across industrial, automotive, and communications markets.
The MAX4635/MAX4636 family delivers fast, low-voltage dual SPDT switching for space- and power-constrained systems where rail-to-rail operation, low THD, and channel matching are essential.
FAQ
What is the maximum supply voltage for MAX4636EUB+?
The absolute maximum supply voltage for MAX4636EUB+ is +6V, but the recommended operating range is +1.8V to +5.5V. Operation above +5.5V risks permanent damage, and on-resistance degrades above +5.5V due to increased FET channel stress. Always observe the +6V absolute limit specified in the Absolute Maximum Ratings table of the MAX4636EUB+ datasheet.
Does MAX4636EUB+ support rail-to-rail analog signals?
Yes, MAX4636EUB+ supports rail-to-rail analog signal handling from GND to V+, meaning signals can swing across the full supply range without clipping or distortion. This is enabled by its CMOS switch architecture and verified across –40°C to +85°C. The MAX4636EUB+ maintains <1Ω on-resistance flatness over this range at +5V, ensuring minimal signal-dependent gain variation.
How does MAX4636EUB+ differ from MAX4635EUB+?
MAX4636EUB+ uses noninverting logic control (IN high = NO→COM), whereas MAX4635EUB+ uses inverted logic (IN high = NC→COM). All other electrical specifications-including on-resistance, switching speed, THD, and package-are identical. Pinout is identical, so PCB layout is interchangeable, but firmware logic must be inverted when substituting MAX4636EUB+ for MAX4635EUB+ or vice versa.
Can MAX4636EUB+ operate with a 1.8V logic supply while V+ is at 3.3V?
Yes, MAX4636EUB+ logic inputs (IN1, IN2) are level-tolerant up to +5.5V regardless of V+. So with V+ = 3.3V, the device fully accepts 1.8V logic-high signals (VIH ≥ 2.0V at +3V supply per spec), and draws only 1µA typical supply current. This eliminates external level shifters in mixed-voltage systems-a key advantage confirmed in the MAX4636EUB+ Applications Information section.
What is the thermal performance difference between MAX4636EUB+ and MAX4636ETB+?
MAX4636EUB+ in µMAX has a 330mW power dissipation limit at +70°C (derating 4.7mW/°C above), while MAX4636ETB+ in thin QFN supports 1951mW at +70°C (derating 24.4mW/°C). The QFN's superior thermal conductivity makes it preferable for high-duty-cycle or high-ambient-temperature use, whereas the µMAX version suits compact, low-power applications where board space is constrained and thermal load remains below 200mW.
MAX4636EUB+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 4Ohm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 14ns, 6ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 9pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -67dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-uMAX/uSOP
MAX4636EUB+ FAQ
1.How can I place an order for MAX4636EUB+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4636EUB+ 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 MAX4636EUB+ reliable?
The price and inventory of MAX4636EUB+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4636EUB+ is usually 5 days.
3.What payment methods are accepted for MAX4636EUB+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4636EUB+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4636EUB+?
MAX4636EUB+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4636EUB+ 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 MAX4636EUB+?
For technical support, including MAX4636EUB+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4636EUB+ requirements.
6.How does Aetrix verify that MAX4636EUB+ is sourced from the original manufacturer or authorized distributors?
All MAX4636EUB+ 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 MAX4636EUB+ meets industry standards.
7.What is the process for return or replacement of MAX4636EUB+?
All MAX4636EUB+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4636EUB+, 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 MAX4636EUB+ part is unused and in its original packaging.
Return procedure for MAX4636EUB+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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