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Analog Devices Inc./Maxim Integrated MAX4736EGC
- Part No.:
- MAX4736EGC
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-VFQFN Exposed Pad
- Datasheet:
-
MAX4736EGC.pdf
- Description:
- IC SW SPDT-NO/NCX2 800MOHM 12QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,091
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Product details
Overview
MAX4736EGC from Maxim Integrated is a low-voltage, dual single-pole/double-throw (SPDT) analog switch operating from a single 1.6V to 4.2V supply. It delivers 0.6Ω on-resistance at 3V, 25ns turn-on time, rail-to-rail signal handling, break-before-make switching, and consumes <4µW quiescent power - ideal for battery-powered audio routing and low-voltage data-acquisition systems.
For engineers reviewing the MAX4736EGC datasheet, MAX4736EGC pinout, MAX4736EGC application, or MAX4736EGC equivalent, key selection criteria include verified RON flatness (0.05Ω), CMOS-compatible logic inputs at 1.8V/3V, 130MHz on-channel bandwidth, and TQFN-EP package thermal performance in space-constrained portable designs.
Technical Context
The MAX4736EGC implements two independent SPDT switches using CMOS architecture, each with one normally open (NO) and one normally closed (NC) path. Its break-before-make timing (5ns typical) prevents signal shorting during state transitions, critical for power routing integrity.
It supports rail-to-rail analog signals (GND to V+) with minimal RON variation (<0.05Ω flatness at 3V), enabling high-fidelity signal switching in audio paths and precision sensor interfaces without gain error or distortion-induced artifacts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 4.2V - enables direct integration into Li-ion (3.0–3.7V) and single-cell alkaline (1.5V) systems with margin |
| On-Resistance (RON) | 0.6Ω max at V+ = 3V - ensures <10mV drop at 100mA, preserving signal headroom in low-voltage ADC front-ends |
| RON Flatness | 0.05Ω typical at 3V - maintains consistent gain across full analog input range (0–3V), critical for video and audio fidelity |
| Turn-On/Off Time | tON = 25ns, tOFF = 20ns - supports >10MHz digital control rates and fast channel switching in multiplexed DAQ systems |
| Bandwidth | 130MHz –3dB on-channel bandwidth - passes baseband audio (20Hz–20kHz) and composite video (up to ~5MHz) with <0.1dB loss |
| Logic Compatibility | 1.8V CMOS input threshold at 3V supply - allows direct interfacing with 1.8V microcontrollers without level shifters |
| Off-Isolation | –52dB at 1MHz - suppresses crosstalk between active and inactive channels in multi-signal routing applications |
Pinout & Package
The MAX4736EGC is housed in a 12-pin Thin QFN-EP (3mm × 3mm × 0.9mm) package with exposed pad (EP) requiring connection to GND for thermal and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 12 | IN1 | Digital control input for Switch 1 - active-high logic drives NO1/NC1 path selection |
| 2 | NO1 | Normally open terminal of Switch 1 - connects to COM1 only when IN1 = high |
| 3 | GND | Analog and digital ground reference - must be low-impedance return for signal integrity and leakage control |
| 4 | NO2 | Normally open terminal of Switch 2 - isolated from COM2 until IN2 asserts |
| 5 | IN2 | Digital control input for Switch 2 - independent of IN1, enabling asynchronous dual-channel routing |
| 6 | COM2 | Common terminal of Switch 2 - bidirectional I/O node shared between NO2 and NC2 paths |
| 7 | NC2 | Normally closed terminal of Switch 2 - connects to COM2 when IN2 = low; breaks before IN2 asserts high |
| 8 | V+ | Positive supply input - powers internal CMOS switch array; bypass capacitor required at pin |
| 9 | NC1 | Normally closed terminal of Switch 1 - provides default signal path when IN1 = low |
| 10, 11 | COM1 | Common terminal of Switch 1 - bidirectional node routed to NO1 or NC1 based on IN1 state |
| EP | Exposed Pad | Thermal and electrical ground - must be soldered to PCB ground plane for ≤1176mW power dissipation rating |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed 5ns minimum dead time prevents momentary short-circuit between NO and NC paths during transition |
| Rail-to-rail analog signal support | Switches signals from GND to V+ without clipping - preserves full dynamic range in 0–3.3V sensor and audio interfaces |
| Ultra-low quiescent power | <4µW supply current - extends battery life in always-on portable devices such as Bluetooth headsets and wearables |
| Low charge injection (60pC) | Minimizes voltage glitch on COM pins during switching - essential for precision sampling in low-noise DAQ front-ends |
| 1.8V CMOS logic compatibility | VIH = 1.4V, VIL = 0.5V at 3V supply - eliminates need for external level translators when driven by 1.8V FPGAs or MCUs |
Applications
| Audio Signal Routing | Battery-Powered Data Acquisition |
|---|---|
Use Scenario: Selecting between microphone inputs or headphone outputs in a smartphone or wireless earbud. IC Role / Device Role / Timing Role: Dual SPDT analog switch providing low-distortion, low-latency signal path selection with break-before-make safety. Use Value: 0.018% THD and 130MHz bandwidth preserve audio clarity; 0.6Ω RON avoids volume loss in line-level paths. | Use Scenario: Multiplexing multiple sensor outputs (e.g., temperature, humidity, accelerometer) into a single ADC channel. IC Role / Device Role / Timing Role: Low-leakage (±10nA COMON) analog switch enabling accurate DC-coupled measurements without offset drift. Use Value: 0.05Ω RON flatness ensures consistent gain across all channels; <4µW quiescent power minimizes system standby drain. |
| Power Path Management | PCMCIA/CompactFlash Interface |
Use Scenario: Isolating backup battery from main power rail during charging or fault conditions in portable medical monitors. IC Role / Device Role / Timing Role: Dual SPDT switch implementing redundant power source selection with guaranteed break-before-make timing. Use Value: 300mA continuous current rating and –52dB off-isolation prevent cross-conduction; 25ns switching enables fast failover response. | Use Scenario: Enabling/disabling legacy PCMCIA card interface signals (VCC, I/O lines) in industrial handheld terminals. IC Role / Device Role / Timing Role: Low-capacitance (33pF NOOFF, 60pF COMOFF) analog switch minimizing signal integrity degradation on high-speed parallel buses. Use Value: 130MHz bandwidth supports 10MB/s PCMCIA Mode 0 transfers; 1.8V logic compatibility simplifies host controller interfacing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4676ETC+ | Higher RON (1.2Ω @3V), same 12-pin TQFN-EP package, RoHS-compliant | Lower bandwidth (80MHz), higher THD (0.03%) - less suitable for high-fidelity audio | Select when RoHS compliance is mandatory and 0.6Ω RON is not required |
| ADG736BRMZ | 0.8Ω RON @3V, 10-pin MSOP package, 1.8V logic compatible, –40°C to +125°C rating | Higher operating temperature range but larger footprint (3mm × 4.9mm vs. 3mm × 3mm) | Select for extended-temperature industrial use where board area is less constrained |
Compared with MAX4736EGC, MAX4676ETC+ trades lower on-resistance for RoHS compliance and relaxed performance, while ADG736BRMZ offers wider temperature tolerance at the cost of larger size and slightly higher RON - both require layout revision due to non-identical pinouts and footprints.
Availability
MAX4736EGC is available at Aetrix Electronics and suitable for battery-powered systems, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply across production lifecycles.
Supply support for MAX4736EGC 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, communications, and consumer applications.
The MAX4736 product line targets ultra-low-voltage, low-power analog signal routing in portable electronics - emphasizing rail-to-rail operation, sub-1Ω on-resistance, and nanosecond switching for space- and energy-constrained systems.
FAQ
What is the maximum continuous current rating for the MAX4736EGC analog switch channels?
The MAX4736EGC 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 ensures reliable conduction in power-routing and sensor-multiplexing applications without thermal derating below ambient +70°C. The MAX4736EGC also tolerates ±500mA peak pulsed current (1ms, 10% duty cycle), supporting transient load conditions.
Does the MAX4736EGC require external bypass capacitors, and if so, what value is recommended?
Yes, the MAX4736EGC requires a 0.1µF ceramic capacitor placed as close as possible between V+ and GND pins. This bypass capacitor stabilizes the internal switch array's power rail, reduces switching noise coupling, and improves noise margin - especially critical in high-speed or low-noise applications like audio routing or precision DAQ. The exposed pad (EP) must also be connected to GND for optimal thermal performance and EMI suppression.
Can the MAX4736EGC operate with a 1.8V supply, and how does its performance change compared to 3V operation?
Yes, the MAX4736EGC operates down to 1.6V and is fully specified at 1.8V. At 1.8V supply, RON increases to 1.5Ω (typical), tON/tOFF extend to 30ns/25ns, and analog signal range shrinks to 0–1.8V. However, logic inputs remain 1.8V CMOS-compatible, and leakage remains <±10nA. The MAX4736EGC maintains functional integrity in ultra-low-power modes where 3V operation is unavailable.
What is the purpose of the exposed pad (EP) on the MAX4736EGC TQFN package, and how must it be connected?
The exposed pad (EP) on the MAX4736EGC serves dual thermal and electrical functions: it lowers junction-to-board thermal resistance (enabling 1176mW dissipation at +70°C) and provides a low-inductance ground return path for internal ESD protection and signal integrity. Per Maxim's datasheet, the EP must be soldered directly to a solid PCB ground plane - no thermal relief - and electrically tied to GND via multiple vias to ensure mechanical reliability and optimal performance.
How does the break-before-make timing of the MAX4736EGC prevent signal corruption during switching?
The MAX4736EGC guarantees a minimum 5ns break interval between opening one path (e.g., NC1–COM1) and closing the alternate path (NO1–COM1). This prevents momentary short-circuiting of analog sources - critical when routing signals from different voltage domains (e.g., microphone bias vs. line-out) or avoiding latch-up in sensitive downstream circuitry. The timing is process-guaranteed and independent of supply voltage or temperature, ensuring robust behavior across all operating conditions.
MAX4736EGC 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:
- 12-QFN (3x3)
MAX4736EGC FAQ
1.How can I place an order for MAX4736EGC through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4736EGC 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 MAX4736EGC reliable?
The price and inventory of MAX4736EGC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4736EGC is usually 5 days.
3.What payment methods are accepted for MAX4736EGC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4736EGC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4736EGC?
MAX4736EGC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4736EGC 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 MAX4736EGC?
For technical support, including MAX4736EGC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4736EGC requirements.
6.How does Aetrix verify that MAX4736EGC is sourced from the original manufacturer or authorized distributors?
All MAX4736EGC 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 MAX4736EGC meets industry standards.
7.What is the process for return or replacement of MAX4736EGC?
All MAX4736EGC units undergo pre-shipment inspection (PSI). If there is an issue with MAX4736EGC, 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 MAX4736EGC part is unused and in its original packaging.
Return procedure for MAX4736EGC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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