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Analog Devices Inc./Maxim Integrated MAX4736ETC+T
- Part No.:
- MAX4736ETC+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFQFN Exposed Pad
- Datasheet:
-
MAX4736ETC+T.pdf
- Description:
- IC SWITCH SPDTX2 800MOHM 12TQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX4736ETC+T 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 routes rail-to-rail analog signals in battery-powered audio/video systems and low-voltage data-acquisition circuits.
For engineers reviewing the MAX4736ETC+T datasheet, MAX4736ETC+T pinout, MAX4736ETC+T application, or MAX4736ETC+T equivalent, this page delivers verified electrical specs, TQFN-12 package details, real-world use cases, and two validated alternative parts for signal routing design decisions.
Technical Context
The MAX4736ETC+T implements CMOS-based dual SPDT switching with independent digital control inputs (IN1, IN2) per channel, enabling discrete selection of normally open (NO1/NO2) or normally closed (NC1/NC2) paths. Its break-before-make architecture prevents momentary shorting during state transitions.
Each switch supports bidirectional analog signal flow from GND to V+, with leakage currents below ±10nA over temperature and charge injection as low as 35pC at 1.8V supply-critical for precision sampling and low-distortion audio routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.6V to 4.2V single supply - enables direct integration into Li-ion (3.0–4.2V) and coin-cell (1.8–3.0V) powered systems without level-shifting. |
| On-Resistance (RON) | 0.6Ω typical at 3V - minimizes voltage drop and power loss in high-current analog paths up to ±300mA continuous. |
| RON Matching | 0.1Ω max between channels - ensures matched gain/attenuation in differential or stereo signal paths. |
| Switching Speed | tON = 25ns, tOFF = 20ns - supports high-speed multiplexing in data acquisition and communications circuits up to 130MHz bandwidth. |
| Logic Compatibility | 1.8V CMOS input threshold at 3V supply - allows direct interfacing with 1.8V microcontrollers without external translators. |
| Off-Isolation | -52dB at 1MHz - suppresses crosstalk between active and inactive channels in multi-source routing applications. |
| Charge Injection | 35pC at 1.8V - reduces settling error and glitch energy in sample-and-hold and ADC front-end designs. |
Pinout & Package
MAX4736ETC+T is housed in a 12-pin TQFN package (3mm × 3mm) with exposed pad connected to GND for thermal and noise performance. Pin numbering follows top-view orientation with pin 1 at top-left corner.
| 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 (COM1) | Common terminal for Switch 1 | Bidirectional analog node connecting to either NO1 or NC1 based on IN1 state; rated for ±300mA continuous current. |
| 3 (N.C.) | No connection | Unbonded pin; must remain unconnected on PCB to avoid parasitic coupling or ESD risk. |
| 4 (NC1) | Normally closed terminal for Switch 1 | Analog path connected to COM1 when IN1 = LOW; maintains continuity during power-down or logic low states. |
| 5 (V+) | Positive supply input | Single power rail for analog and digital sections; accepts 1.6V–4.2V; requires 0.1μF bypass capacitor to GND. |
| 6 (NC2) | Normally closed terminal for Switch 2 | Analog path connected to COM2 when IN2 = LOW; electrically isolated from Switch 1 except via shared V+/GND. |
| 7 (COM2) | Common terminal for Switch 2 | Second bidirectional analog node; independent operation from COM1 enables dual-channel routing without interaction. |
| 8 (IN2) | Digital control input for Switch 2 | Independent logic input mirroring IN1 functionality; supports asynchronous switching of two signal paths. |
| 9 (NO2) | Normally open terminal for Switch 2 | Path connected to COM2 only when IN2 = HIGH; complements NC2 for SPDT topology in second channel. |
| 10 (GND) | Ground reference | Primary return path for analog signals and supply current; exposed pad must be soldered to solid ground plane. |
| 11 (NO1) | Normally open terminal for Switch 1 | Path connected to COM1 only when IN1 = HIGH; used for default-open signal routing such as mute or bypass functions. |
| 12 (EP) | Exposed thermal pad | Internally connected to GND; mandatory PCB connection improves thermal dissipation (1176mW max at +70°C) and reduces ground impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports input/output voltages from GND to V+ without clipping or distortion-enables full-supply-range audio and sensor signal routing. |
| Break-before-make switching | Guaranteed 5ns minimum dead time prevents momentary short-circuit between NO and NC paths-essential for safe power routing and battery isolation. |
| Low quiescent power | <4μW typical supply current - extends battery life in always-on portable devices like cellular handsets and modems. |
| Low RON flatness | 0.05Ω max variation across 0–3V signal range - preserves linearity and THD <0.018% in audio paths and precision instrumentation. |
| High off-isolation & low crosstalk | -52dB off-isolation and -78dB crosstalk at 1MHz - isolates active and inactive signal sources in PCMCIA cards and hard drive interfaces. |
Applications
| Audio Signal Routing | Battery-Powered Modems |
|---|---|
|
Use Scenario: Selecting between microphone and headset inputs in a dual-mode cellular phone while maintaining low-noise performance. IC Role / Device Role / Timing Role: Dual SPDT analog switch providing independent path selection for two audio channels with sub-25ns switching latency. Use Value: 0.6Ω RON and -78dB crosstalk prevent signal bleed between voice and audio playback paths, preserving call clarity and stereo separation. |
Use Scenario: Isolating RS-232 and USB interface lines during modem sleep mode to reduce system standby current. IC Role / Device Role / Timing Role: Low-leakage (±10nA) analog switch disconnecting signal paths while retaining fast wake-up capability. Use Value: <4μW quiescent power and break-before-make action ensure no current leakage or bus contention during power-state transitions. |
| Low-Voltage Data Acquisition | PCMCIA Card Interface |
|
Use Scenario: Multiplexing multiple sensor outputs (temperature, pressure, humidity) into a single ADC input in a wearable health monitor. IC Role / Device Role / Timing Role: Precision analog switch with 35pC charge injection and 0.1Ω RON matching for minimal measurement error across channels. Use Value: Low RON flatness (0.05Ω) and rail-to-rail operation preserve signal fidelity across full sensor output range without gain compression. |
Use Scenario: Enabling/disabling legacy parallel ATA signals on a PCMCIA Type II card while sharing common host bus lines. IC Role / Device Role / Timing Role: Dual SPDT switch managing signal direction and isolation between card and host controller under hot-swap conditions. Use Value: 12-pin TQFN package fits tight PCMCIA form factor; -52dB off-isolation prevents interference between card functions during dynamic reconfiguration. |
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 |
|---|---|---|---|
| TMUX1574RTER | Higher 1.2Ω RON at 3V; supports 5V supply; 30ns tON; no break-before-make guarantee. | Targeted at industrial 5V systems; less suitable for ultra-low-power battery operation due to higher leakage (±25nA). | Choose TMUX1574RTER only if 5V compatibility and wider supply margin outweigh need for sub-0.7Ω RON and guaranteed BBM timing. |
| ADG732BRUZ | 32-channel single-pole/single-throw (SPST); 4Ω RON at 3V; 16ns tON; requires external logic for SPDT emulation. | Designed for high-density multiplexing rather than discrete dual-path routing; lacks integrated NC/NO topology. | Select ADG732BRUZ when scaling beyond two SPDT paths or when board space permits discrete logic + SPST implementation. |
Compared with MAX4736ETC+T, TMUX1574RTER trades lower on-resistance and guaranteed break-before-make for higher voltage support, while ADG732BRUZ offers channel count scalability at the cost of topology mismatch and higher RON-making MAX4736ETC+T optimal for compact, low-power dual SPDT routing where precision and timing integrity are critical.
Availability
MAX4736ETC+T is available at Aetrix Electronics and suitable for battery-powered systems, audio/video signal routing, and low-voltage data-acquisition applications requiring stable component supply and RoHS-compliant packaging.
Supply support for MAX4736ETC+T 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 belongs to Maxim's low-voltage analog switch product line, engineered specifically for high-fidelity signal routing in space-constrained, battery-operated devices where low RON, fast switching, and minimal power consumption are essential.
FAQ
What is the maximum continuous current rating for the MAX4736ETC+T analog switches?
The MAX4736ETC+T supports ±300mA continuous current through its COM_, NO_, and NC_ terminals. This rating applies across the full operating temperature range (-40°C to +85°C) and is validated for both 1.8V and 3V supply conditions. Exceeding this limit risks thermal overstress and long-term reliability degradation.
Does the MAX4736ETC+T require external pull-up or pull-down resistors on its IN1 and IN2 pins?
No, the MAX4736ETC+T does not require external biasing on IN1 or IN2. Its logic inputs are CMOS-compatible with defined VIH (1.4V min at 3V supply) and VIL (0.5V max), and internal structure ensures stable state retention without external resistors-reducing BOM count and PCB area in compact designs.
Can the MAX4736ETC+T operate reliably with a 1.6V supply voltage?
Yes, the MAX4736ETC+T is fully specified down to 1.6V supply voltage. At 1.6V, it maintains functional switching with RON ≤ 3Ω, tON ≤ 35ns, and logic thresholds adjusted to VIH = 1.0V / VIL = 0.4V. All parametric limits-including leakage and bandwidth-are guaranteed across the full 1.6V–4.2V range.
How is the exposed pad (EP) of the MAX4736ETC+T TQFN package connected in the circuit?
The exposed pad (EP) of the MAX4736ETC+T is internally connected to GND and must be soldered to a solid PCB ground plane. This connection provides critical thermal dissipation (enabling 1176mW max power at +70°C) and lowers ground impedance to minimize noise coupling into sensitive analog paths.
What is the guaranteed break-before-make interval for the MAX4736ETC+T, and how is it verified?
The MAX4736ETC+T guarantees a minimum 5ns break-before-make (BBM) interval at +25°C, with worst-case 1ns over temperature (-40°C to +85°C). This timing is ensured by internal logic design-not process variation-and is validated per Figure 2 in the official datasheet using 50Ω/35pF test loads.
MAX4736ETC+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPDT
- 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+T FAQ
1.How can I place an order for MAX4736ETC+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4736ETC+T 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+T reliable?
The price and inventory of MAX4736ETC+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4736ETC+T is usually 5 days.
3.What payment methods are accepted for MAX4736ETC+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4736ETC+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4736ETC+T?
MAX4736ETC+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4736ETC+T 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+T?
For technical support, including MAX4736ETC+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4736ETC+T requirements.
6.How does Aetrix verify that MAX4736ETC+T is sourced from the original manufacturer or authorized distributors?
All MAX4736ETC+T 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+T meets industry standards.
7.What is the process for return or replacement of MAX4736ETC+T?
All MAX4736ETC+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4736ETC+T, 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+T part is unused and in its original packaging.
Return procedure for MAX4736ETC+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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