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Analog Devices Inc./Maxim Integrated MAX4736ETC
- Part No.:
- MAX4736ETC
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFQFN Exposed Pad
- Datasheet:
-
MAX4736ETC.pdf
- Description:
- IC SW SPDT-NO/NCX2 800MOHM 12QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,198
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Product details
Overview
The MAX4736ETC 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 MAX4736ETC datasheet, MAX4736ETC pinout, MAX4736ETC application, or MAX4736ETC equivalent, key selection criteria include verified RON flatness (0.05Ω), CMOS-compatible logic inputs at 1.8V/3V, TQFN-EP package thermal performance, and guaranteed -40°C to +85°C operation with exposed-pad grounding.
Technical Context
The MAX4736ETC uses CMOS switch architecture to support bidirectional, rail-to-rail analog signals from GND to V+. Its dual SPDT configuration includes one normally open (NO) and one normally closed (NC) path per channel, with independent digital control inputs (IN1, IN2) enabling discrete signal path selection.
Break-before-make timing is guaranteed at ≤1ns (tBBM) under 3V/1.8V supplies, preventing momentary shorting during state transitions. Charge injection is tightly controlled at 60pC (3V) and 35pC (1.8V), minimizing transient glitches in precision signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| V+ Supply Range | 1.6V to 4.2V - enables direct integration into Li-ion (3.0–3.7V) and single-cell alkaline (1.5V) systems without level-shifting. |
| RON (3V) | 0.6Ω max - supports ≥300mA continuous current per channel with <18mV drop at 30mA, critical for low-loss sensor/data line switching. |
| RON Flatness (3V) | 0.05Ω typ - ensures consistent gain/attenuation across full signal range (0–3V), essential for audio and instrumentation accuracy. |
| tON/tOFF | 25ns/20ns max - allows clean switching of signals up to 130MHz bandwidth without edge distortion or settling delay. |
| Logic Compatibility | 1.8V CMOS input threshold at 3V supply - interfaces directly with modern low-voltage microcontrollers without external translators. |
| Leakage Current | ±5nA NO_/NC_ off-leakage - preserves signal integrity in high-impedance sensor front-ends and battery-monitoring circuits. |
| Package | 12-pin TQFN-EP (3mm × 3mm, 0.8mm height) - exposed pad tied to GND improves thermal resistance (14.7mW/°C derating) and EMI suppression. |
Pinout & Package
MAX4736ETC is housed in a 12-pin Thin QFN-EP package (3mm × 3mm, 0.8mm height) with an exposed thermal pad that must be soldered to GND for optimal thermal performance and noise immunity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN1) | Digital control input for Switch 1 | Active-high logic input controlling COM1 ↔ NO1/NC1 path selection; compatible with 1.8V CMOS at 3V V+. |
| 2 (NO1) | Normally open terminal, Switch 1 | Open-circuit when IN1 = 0; connects to COM1 when IN1 = 1 - used for default-isolation signal routing. |
| 3 (GND) | Ground reference | Primary return path for analog and digital currents; must be low-impedance and connected to exposed pad. |
| 4 (NO2) | Normally open terminal, Switch 2 | Independent NO path for second SPDT channel; enables dual-path redundancy or stereo signal routing. |
| 5 (IN2) | Digital control input for Switch 2 | Independent logic control for COM2 ↔ NO2/NC2; supports asynchronous channel operation. |
| 6 (COM2) | Common terminal, Switch 2 | Bidirectional analog I/O node - accepts or sources signals up to V+; requires no polarity biasing. |
| 7 (NC2) | Normally closed terminal, Switch 2 | Default connection to COM2 when IN2 = 0; provides fail-safe path in power-routing applications. |
| 8 (V+) | Positive supply input | Single supply powering both analog switch core and logic interface; bypassing with 0.1µF to GND is recommended. |
| 9 (NC1) | Normally closed terminal, Switch 1 | Complements NO1 to form full SPDT function; enables automatic signal fallback on control loss. |
| 10 (COM1) | Common terminal, Switch 1 | Primary analog signal port for first channel; shares same voltage range and current rating as COM2. |
| 11 (N.C.) | No connection | Unbonded pin - must remain floating; no PCB trace or copper pour should connect to this pad. |
| 12 (IN1) | Duplicate IN1 input (TQFN pin mapping) | Same signal as Pin 1; provided for layout flexibility - both pins must be driven identically. |
Key Features
| Feature | Design Value |
|---|---|
| 0.6Ω RON at 3V | Enables low-insertion-loss switching in portable audio codecs and ADC/DAC multiplexing without gain compensation. |
| 0.05Ω RON flatness | Maintains linear transfer function across full 0–3V input range, reducing harmonic distortion in audio and sensor signals. |
| 25ns tON, 20ns tOFF | Supports high-speed multiplexing in data acquisition systems sampling at >10 MSPS without aperture jitter penalty. |
| Break-before-make (≤1ns) | Eliminates cross-conduction risk in power routing and battery switchover circuits, preventing supply shorting. |
| Rail-to-rail analog range | Passes signals from GND to V+ without clipping or level shifting - simplifies design in single-supply embedded systems. |
Applications
| Audio Signal Routing | Battery-Powered Data Acquisition |
|---|---|
|
Use Scenario: Selecting between microphone inputs or headphone outputs in smartphones and wearables. IC Role / Device Role / Timing Role: Dual SPDT analog switch managing bidirectional audio paths with minimal THD (0.018%) and 130MHz bandwidth. Use Value: Preserves signal fidelity across full 20Hz–20kHz range while consuming <4µW, extending battery life in always-on voice interfaces. |
Use Scenario: Multiplexing multiple sensor outputs (temperature, pressure, IMU) into a single ADC channel. IC Role / Device Role / Timing Role: Low-RON, low-leakage switch enabling precise DC-coupled measurements without offset drift. Use Value: ±5nA off-leakage and 0.05Ω RON flatness ensure <0.01% measurement error in 16-bit sensor systems. |
| Cellular Phone Power Management | PCMCIA Card Interface Switching |
|
Use Scenario: Isolating backup battery from main power rail during charging cycles and system sleep states. IC Role / Device Role / Timing Role: NC/NO dual-path switch providing fail-safe power path control with break-before-make guarantee. Use Value: ≤1ns tBBM prevents momentary VBAT–VCHG shorting, protecting Li-ion cells and charging ICs. |
Use Scenario: Enabling/disabling legacy PCMCIA card signals (I/O, memory, interrupt) during hot-plug detection. IC Role / Device Role / Timing Role: High-bandwidth analog switch isolating card bus lines from host controller during insertion/removal. Use Value: -78dB crosstalk and -52dB off-isolation prevent signal coupling between card and host during dynamic reconfiguration. |
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 (1.5Ω at 3V), slower tON/tOFF (45ns/35ns), same TQFN-EP package | Targeted at cost-sensitive industrial I/O modules where speed and on-resistance are less critical | Select MAX4676ETC+ only if 0.6Ω RON and 25ns switching are not required; verify leakage (±20nA) meets system noise budget. |
| TMUX1574RTWR | Lower RON (0.5Ω), higher supply range (1.08–4.5V), 10-pin WQFN vs. 12-pin TQFN | Designed for USB-C alternate mode signal routing with integrated ESD protection (±4kV HBM) | TMUX1574RTWR offers better ESD robustness but lacks guaranteed break-before-make; use only if ESD immunity outweighs tBBM requirement. |
Compared with MAX4736ETC, MAX4676ETC+ trades performance for cost in non-critical signal paths, while TMUX1574RTWR adds ESD protection at the expense of guaranteed break-before-make timing - making MAX4736ETC the optimal choice for battery-switching and precision audio where both low RON and sub-ns tBBM are mandatory.
Availability
MAX4736ETC 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 extended temperature ranges and long production lifecycles.
Supply support for MAX4736ETC 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 MAX4736ETC belongs to Maxim's low-voltage analog switch product line, engineered specifically for energy-efficient signal routing in space-constrained, battery-operated devices where rail-to-rail performance and ultra-low power are critical.
FAQ
What is the maximum continuous current rating for MAX4736ETC per channel?
The MAX4736ETC supports ±300mA continuous current on COM_, NO_, and NC_ terminals. This rating holds across the full -40°C to +85°C operating range and is validated with proper PCB thermal design - including connection of the exposed pad to a solid ground plane. Exceeding this current may cause irreversible RON drift or thermal shutdown.
Does MAX4736ETC require external level-shifting when interfaced with 1.8V microcontrollers?
No. The MAX4736ETC features 1.8V CMOS-compatible logic inputs when operated from a 3V supply, with VIH = 1.4V and VIL = 0.5V. When powered at 3V, the MAX4736ETC accepts direct connection to 1.8V GPIO outputs without translation - simplifying design and reducing bill-of-materials cost.
How is the exposed pad on the MAX4736ETC TQFN package intended to be used?
The exposed pad on the MAX4736ETC must be soldered to a dedicated GND plane on the PCB. It serves as both a thermal dissipation path (enabling 1176mW max power dissipation at +70°C) and a low-inductance ground reference for analog and digital return currents. Leaving it unconnected degrades thermal performance and increases switching noise.
Can MAX4736ETC operate reliably at 1.6V supply voltage?
Yes. The MAX4736ETC is fully specified down to 1.6V V+, with RON = 3Ω (typ), tON/tOFF = 30ns/28ns, and guaranteed functionality over -40°C to +85°C. At 1.6V, analog signal range remains rail-to-rail (0 to 1.6V), and logic inputs retain valid thresholds (VIH = 1.0V, VIL = 0.4V), supporting single-cell alkaline and NiMH battery systems.
What is the significance of break-before-make timing in MAX4736ETC for power-routing applications?
The MAX4736ETC guarantees ≤1ns break-before-make (tBBM) interval, ensuring the NC path fully disconnects before the NO path closes. In power-routing applications - such as battery backup switchover - this eliminates risk of momentary short-circuit between two voltage domains (e.g., main supply and backup battery), protecting both sources and downstream circuitry.
MAX4736ETC 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-TQFN (3x3)
MAX4736ETC FAQ
1.How can I place an order for MAX4736ETC through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4736ETC 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 MAX4736ETC reliable?
The price and inventory of MAX4736ETC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4736ETC is usually 5 days.
3.What payment methods are accepted for MAX4736ETC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4736ETC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4736ETC?
MAX4736ETC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4736ETC 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 MAX4736ETC?
For technical support, including MAX4736ETC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4736ETC requirements.
6.How does Aetrix verify that MAX4736ETC is sourced from the original manufacturer or authorized distributors?
All MAX4736ETC 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 MAX4736ETC meets industry standards.
7.What is the process for return or replacement of MAX4736ETC?
All MAX4736ETC units undergo pre-shipment inspection (PSI). If there is an issue with MAX4736ETC, 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 MAX4736ETC part is unused and in its original packaging.
Return procedure for MAX4736ETC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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