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Analog Devices Inc./Maxim Integrated MAX4736ELB+
- Part No.:
- MAX4736ELB+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 10-WFDFN
- Datasheet:
-
MAX4736ELB+.pdf
- Description:
- SPDT, 2 FUNC, 1 CHANNEL, CMOS
- Quantity:
- Payment:
- Shipping:
Inventory:230,580
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Product details
Overview
The MAX4736ELB+ from Maxim Integrated is a low-voltage, dual SPDT analog switch operating from a single 1.6V to 4.2V supply, featuring 0.6Ω on-resistance (at 3V), 25ns turn-on time, and break-before-make switching. It handles rail-to-rail analog signals, consumes <4μW quiescent power, and is designed for signal routing in space-constrained, battery-powered systems such as cellular phones and audio modules.
For engineers reviewing the MAX4736ELB+ datasheet, MAX4736ELB+ pinout, MAX4736ELB+ application, or MAX4736ELB+ equivalent, key selection criteria include on-resistance matching (0.1Ω max), CMOS-compatible logic inputs at 1.8V supply, low charge injection (60pC), and μDFN-10 package compatibility with high-density PCB layouts.
Technical Context
The MAX4736ELB+ implements two independent SPDT switches using CMOS architecture, each with one normally open (NO) and one normally closed (NC) path controlled by separate digital inputs (IN1/IN2). Its break-before-make timing (5ns typical) prevents momentary shorting during state transitions, critical for power routing and signal integrity in mixed-signal systems.
It supports bidirectional analog signal routing from GND to V+, with guaranteed RON flatness of 0.05Ω (at 3V) and off-isolation of –52dB at 1MHz-enabling clean channel separation in audio/video multiplexing and low-voltage data acquisition where harmonic distortion must remain below 0.018% (20Hz–20kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 4.2V single supply - enables direct integration with Li-ion battery rails (2.7–4.2V) and 1.8V/3.3V logic domains without level shifters. |
| On-Resistance (RON) | 0.6Ω typ at V+ = 3V - minimizes voltage drop and power loss in high-current analog paths (±300mA continuous). |
| RON Matching | 0.1Ω max between channels - ensures matched gain/attenuation in differential or dual-path signal routing applications. |
| Switching Speed | tON = 25ns, tOFF = 20ns - supports fast multiplexing in real-time audio sampling and burst-mode communications circuits. |
| Charge Injection | 60pC - limits voltage glitch on sampled-hold nodes, preserving accuracy in precision ADC front-ends. |
| Off-Isolation | –52dB at 1MHz - suppresses crosstalk between active and inactive signal paths in multi-channel video/audio switches. |
| Logic Compatibility | 1.8V CMOS input thresholds at 3V supply - allows direct interfacing with 1.8V microcontrollers without external biasing. |
Pinout & Package
The MAX4736ELB+ is housed in a 10-pin μDFN package (2mm × 2mm, 0.5mm pitch) with exposed pad (EP) requiring connection to GND for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN1) | Digital control input for Switch 1 | Active-high logic input controlling NO1/NC1 path selection; compatible with 1.8V CMOS at 3V V+. |
| 2 (NO1) | Analog terminal - normally open for Switch 1 | Connects to COM1 only when IN1 = high; used for default-open signal routing paths. |
| 3 (GND) | Ground reference | Primary return path for analog and digital currents; EP must be soldered to same GND plane. |
| 4 (NO2) | Analog terminal - normally open for Switch 2 | Independent NO path for second SPDT switch; electrically isolated from Switch 1. |
| 5 (IN2) | Digital control input for Switch 2 | Separate logic control enabling independent operation of dual switches without shared timing constraints. |
| 6 (COM2) | Common analog terminal for Switch 2 | Bidirectional I/O node - accepts or delivers analog signals between NO2 and NC2 based on IN2 state. |
| 7 (NC2) | Analog terminal - normally closed for Switch 2 | Default-connected path to COM2 when IN2 = low; maintains continuity during power-up or logic reset. |
| 8 (V+) | Positive supply input | Single power rail powering both analog switch core and logic interface; bypassing with 0.1μF to GND required. |
| 9 (NC1) | Analog terminal - normally closed for Switch 1 | Provides fail-safe signal path when IN1 = low; complements NO1 for redundant or backup routing. |
| 10 (COM1) | Common analog terminal for Switch 1 | Central analog I/O node for first SPDT; supports rail-to-rail signal swing (0V to V+). |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | 5ns typical interval prevents transient short-circuits during channel switching - essential for power routing and battery protection circuits. |
| Rail-to-rail analog signal handling | Supports input/output signals from GND to V+ without clipping - enables full utilization of ADC/DAC dynamic range in portable instrumentation. |
| Ultra-low quiescent power | <4μW at 3V - extends battery life in always-on audio codecs and sensor hubs where standby current is critical. |
| Low RON flatness (0.05Ω) | Minimizes distortion across signal amplitude range - preserves fidelity in line-level audio and video signal switching. |
| High off-isolation (–52dB) | Reduces interference between active and inactive channels - improves SNR in multi-source audio mixers and camera module multiplexers. |
Applications
| Cellular Phone Front-End | Portable Audio Codec Routing |
|---|---|
|
Use Scenario: Selecting between multiple microphone inputs or speaker outputs in slim-profile smartphones with tight power and space budgets. IC Role / Device Role: Dual SPDT analog switch managing signal path connectivity under baseband processor control. Use Value: 0.6Ω RON and 25ns switching enable low-loss, glitch-free audio path reconfiguration without audible artifacts or battery drain. |
Use Scenario: Dynamically routing line-in, headset, and DAC output signals in Bluetooth headphones or voice assistants. IC Role / Device Role: Low-voltage analog multiplexer providing bidirectional signal flow between codec, amplifier, and jack connectors. Use Value: Rail-to-rail operation and 0.1Ω RON matching preserve signal symmetry and minimize THD (<0.018%) across all selected paths. |
| Low-Voltage Data Acquisition | PCMCIA Card Signal Switching |
|
Use Scenario: Multiplexing sensor outputs (e.g., thermistors, accelerometers) into a shared ADC channel in wearable health monitors. IC Role / Device Role: Precision analog switch ensuring minimal added noise and offset due to low charge injection (60pC) and leakage (±2nA). Use Value: 0.05Ω RON flatness maintains consistent gain across temperature and signal amplitude, improving measurement repeatability. |
Use Scenario: Isolating or connecting host-side I/O lines (e.g., IRQ, I/OCHRDY) to PCMCIA card functions during hot-plug insertion/removal. IC Role / Device Role: Fault-tolerant signal gate supporting 1.6V–4.2V operation and ±300mA current handling per channel. Use Value: Break-before-make timing prevents bus contention during card enumeration, while –52dB off-isolation avoids signal corruption from adjacent slots. |
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 |
|---|---|---|---|
| MAX4686ETE+ | Higher RON (1.2Ω at 3V), slower tON/tOFF (45ns/35ns), TQFN-16 package | Targeted at industrial control over portable consumer devices due to wider temp range (–40°C to +125°C) | Select MAX4686ETE+ only if extended temperature operation or higher voltage tolerance (up to 5.5V) is required; not pin-compatible with MAX4736ELB+. |
| TMUX1574RSVR | Lower RON (0.5Ω at 3.3V), but requires minimum 3V supply; no 1.6V operation; 10-pin WQFN same footprint | Optimized for high-speed USB 2.0 switching with 500MHz bandwidth vs. MAX4736ELB+'s 130MHz | Choose TMUX1574RSVR for USB signal routing where bandwidth >200MHz is needed; MAX4736ELB+ remains preferred for sub-2V battery operation and ultra-low power. |
Compared with MAX4686ETE+ and TMUX1574RSVR, the MAX4736ELB+ uniquely balances ultra-low supply voltage (1.6V), sub-1Ω RON, and <4μW quiescent power - making it the only option among the three suitable for coin-cell–powered IoT sensors and always-on audio subsystems.
Availability
The MAX4736ELB+ is available at Aetrix Electronics and suitable for cellular phone front-end design, portable audio codec routing, and low-voltage data-acquisition systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX4736ELB+ 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 demanding industrial, medical, and portable applications.
The MAX4736ELB+ belongs to Maxim's low-voltage analog switch product line, engineered specifically for battery-powered consumer electronics where minimal on-resistance, ultra-low power, and compact μDFN packaging are critical.
FAQ
What is the maximum continuous current rating per channel for the MAX4736ELB+?
The MAX4736ELB+ supports ±300mA continuous current on COM_, NO_, and NC_ terminals. This rating applies across the full operating temperature range (–40°C to +85°C) and is validated for reliable conduction without thermal derating under typical PCB layout conditions with proper GND pad connection.
Does the MAX4736ELB+ require external pull-up or pull-down resistors on its logic inputs?
No, the MAX4736ELB+ does not require external pull-up or pull-down resistors on IN1 or IN2. Its logic inputs are internally biased and fully compatible with 1.8V CMOS levels when operating from a 3V supply, with VIH = 1.4V and VIL = 0.5V specified and tested.
Can the MAX4736ELB+ operate with a 1.6V supply while maintaining guaranteed RON performance?
Yes, the MAX4736ELB+ is fully specified down to 1.6V supply voltage. At 1.6V, RON increases to 3Ω max (vs. 0.6Ω at 3V), but all timing, leakage, and logic thresholds remain functional and guaranteed across the –40°C to +85°C range per the datasheet.
How is the exposed pad (EP) of the MAX4736ELB+ μDFN package intended to be connected?
The exposed pad (EP) of the MAX4736ELB+ must be soldered directly to a solid GND plane on the PCB. This connection provides both thermal dissipation (critical for power handling) and low-impedance grounding for analog and digital return currents - failure to connect EP to GND degrades RON, switching speed, and EMI performance.
Is the MAX4736ELB+ suitable for audio line-level signal switching without added distortion?
Yes, the MAX4736ELB+ is suitable for audio line-level switching with measured THD of 0.018% (20Hz–20kHz, 2VP-P, 32Ω load). Its 0.05Ω RON flatness and –78dB crosstalk ensure minimal inter-channel interference and amplitude-dependent distortion in stereo or multi-channel audio paths.
MAX4736ELB+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SPDT - NO/NC
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 800mOhm
- Channel-to-Channel Matching (ΔRon):
- 100mOhm
- Voltage - Supply, Single (V+):
- 1.6V ~ 4.2V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 25ns, 20ns
- -3db Bandwidth:
- 130MHz
- Charge Injection:
- 60pC
- Channel Capacitance (CS(off), CD(off)):
- 33pF, 60pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -78dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-µDFN (2x2)
MAX4736ELB+ FAQ
1.How can I place an order for MAX4736ELB+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4736ELB+ 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 MAX4736ELB+ reliable?
The price and inventory of MAX4736ELB+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4736ELB+ is usually 5 days.
3.What payment methods are accepted for MAX4736ELB+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4736ELB+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4736ELB+?
MAX4736ELB+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4736ELB+ 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 MAX4736ELB+?
For technical support, including MAX4736ELB+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4736ELB+ requirements.
6.How does Aetrix verify that MAX4736ELB+ is sourced from the original manufacturer or authorized distributors?
All MAX4736ELB+ 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 MAX4736ELB+ meets industry standards.
7.What is the process for return or replacement of MAX4736ELB+?
All MAX4736ELB+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4736ELB+, 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 MAX4736ELB+ part is unused and in its original packaging.
Return procedure for MAX4736ELB+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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