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Analog Devices Inc./Maxim Integrated MAX4729ELT+TG05
- Part No.:
- MAX4729ELT+TG05
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX4729ELT+TG05.pdf
- Description:
- INTEGRATED CIRCUIT
- Quantity:
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Product details
Overview
MAX4729ELT+TG05 from Maxim Integrated is a low-voltage, single-pole/double-throw (SPDT) CMOS analog switch in a 6-pin µDFN package, operating from +1.8V to +5.5V supply, with 3.5Ω typical on-resistance at +2.7V, 0.45Ω RON flatness, and 1nA supply current-designed for precision signal routing in battery-powered audio and data-acquisition systems.
For engineers reviewing the MAX4729ELT+TG05 datasheet, MAX4729ELT+TG05 pinout, MAX4729ELT+TG05 application, or MAX4729ELT+TG05 equivalent, key selection criteria include guaranteed RON match (±0.05Ω), -67dB off-isolation at 1MHz, 300MHz -3dB bandwidth, and TTL/CMOS-compatible logic inputs tolerant up to +5.5V independent of V+.
Technical Context
The MAX4729ELT+TG05 implements a fully complementary CMOS transmission-gate architecture optimized for low-voltage operation, supporting bidirectional analog signal switching across its COM–NO and COM–NC paths with break-before-make timing (1ns typical). Its digital control input accepts logic levels up to +5.5V regardless of V+, enabling mixed-supply system interfacing.
It features rail-to-rail analog signal handling (0V to V+), sub-nA leakage over -40°C to +85°C, and tightly controlled dynamic parameters: 45ns max turn-on time, 26ns max turn-off time, and 3pC charge injection-critical for sample-and-hold and precision multiplexing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.8V to +5.5V single supply-enables direct integration into Li-ion, 3.3V, and 5V systems without level-shifting. |
| On-Resistance (RON) | 3.5Ω typical at +2.7V-minimizes signal attenuation and voltage drop in low-level sensor and audio paths. |
| RON Flatness | 0.45Ω max at +2.7V-ensures consistent gain and linearity across full analog input range (0V to V+). |
| Off-Isolation | -67dB at 1MHz-prevents crosstalk between active and inactive channels in multi-channel routing. |
| Bandwidth (-3dB) | 300MHz-supports high-fidelity video, RF sampling, and fast digital signal switching without distortion. |
| Supply Current | 1nA typical-extends battery life in always-on portable instrumentation and wearables. |
| Charge Injection | 3pC-reduces settling error in precision ADC front-ends and sample-and-hold circuits. |
Pinout & Package
MAX4729ELT+TG05 is housed in a 1.5mm × 1.0mm, 0.5mm pitch, 6-pin µDFN package (package code L611+1), RoHS-compliant, with wettable flank leads for automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Digital control input-TTL/CMOS-compatible, accepts 0V to +5.5V logic regardless of V+. |
| 2 | V+ | Positive supply rail-powers internal circuitry and defines analog signal range (0V to V+). |
| 3 | GND | Analog/digital ground reference-must be low-impedance for optimal THD and leakage performance. |
| 4 | NC | Normally closed analog terminal-connects to COM when IN = low; isolated when IN = high. |
| 5 | COM | Common analog port-bidirectional signal path shared between NC and NO terminals. |
| 6 | NO | Normally open analog terminal-connects to COM when IN = high; isolated when IN = low. |
Key Features
| Feature | Design Value |
|---|---|
| Low RON Match | ±0.05Ω between channels at +2.7V-enables matched gain in differential or dual-path signal routing. |
| High Off-Isolation | -67dB at 1MHz-maintains channel separation in multi-source audio/video matrix switches. |
| Ultra-Low THD | 0.036% at 20Hz–20kHz-preserves fidelity in line-level and headphone driver signal paths. |
| Break-Before-Make Timing | 1ns typical-prevents momentary shorting during state transitions in critical power or sensor paths. |
| Logic-Level Tolerance | IN supports 0V to +5.5V-allows direct interface with 5V microcontrollers driving 3.3V or 2.7V analog sections. |
Applications
| Portable Audio Signal Routing | Low-Voltage Data-Acquisition Multiplexing |
|---|---|
Use Scenario: Switching microphone inputs, DAC outputs, or headphone drivers in Bluetooth earbuds and voice-controlled wearables. IC Role / Device Role / Timing Role: SPDT analog switch controlling signal path selection under firmware control with <45ns switching. Use Value: 3.5Ω RON and 0.036% THD preserve SNR and dynamic range; 1nA I+ extends battery runtime beyond 72 hours per charge. | Use Scenario: Multiplexing multiple sensor outputs (thermocouples, strain gauges) into a single SAR ADC in handheld test equipment. IC Role / Device Role / Timing Role: Low-leakage, rail-to-rail analog switch enabling accurate DC-coupled measurements with minimal offset drift. Use Value: ±4nA max COM on-leakage and 3pC charge injection reduce measurement error to <0.01% FS across -40°C to +85°C. |
| Sample-and-Hold Circuit Switching | Relay Replacement in IoT Sensor Nodes |
Use Scenario: Controlling hold capacitor connection in precision 16-bit data loggers requiring sub-microvolt settling. IC Role / Device Role / Timing Role: Fast, low-charge-injection switch isolating the sampling node during acquisition phase. Use Value: 3pC charge injection and 26ns tOFF enable <1μs settling to 16-bit accuracy-replacing electromechanical relays with solid-state reliability. | Use Scenario: Replacing miniature signal relays in battery-powered environmental monitors for HVAC or smart agriculture gateways. IC Role / Device Role / Timing Role: Solid-state SPDT switch providing fail-safe signal path control with no coil drive or bounce. Use Value: 3.5Ω RON and 0.45Ω flatness ensure stable sensor excitation; 1nA I+ enables 10-year shelf life on coin-cell power. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4730ELT+T | Same µDFN package, but inverted logic: IN = high selects NC (not NO); RON match ±0.2Ω (vs. ±0.05Ω for MAX4729ELT+TG05) | Requires PCB logic inversion or firmware adjustment; less suitable for precision-matched dual-path designs | Select only if NC-first routing is required and RON matching tolerance >0.2Ω is acceptable |
| TMUX1574DSGR | 4-channel SPDT, 4.5Ω RON, 1.8V–5.5V, but 10nA I+ and no guaranteed RON flatness spec | Higher channel count but higher leakage and looser RON consistency-better for cost-sensitive multi-signal routing than precision audio | Prefer for systems needing ≥4 SPDT paths where 1nA ultra-low I+ is noncritical |
Compared with MAX4730ELT+T and TMUX1574DSGR, MAX4729ELT+TG05 delivers the lowest RON mismatch and supply current-making it optimal for battery-constrained, high-fidelity analog signal routing where channel matching and quiescent power dominate selection.
Availability
MAX4729ELT+TG05 is available at Aetrix Electronics and suitable for portable audio signal routing, low-voltage data-acquisition multiplexing, and sample-and-hold circuit switching requiring stable component supply, long-lifecycle support, and guaranteed parametric performance across industrial temperature ranges.
Supply support for MAX4729ELT+TG05 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 industrial, medical, communications, and consumer applications.
The MAX4729/MAX4730 product line targets ultra-low-power, high-fidelity analog signal routing in space-constrained portable systems-emphasizing rail-to-rail operation, nanoscale leakage control, and logic-level flexibility.
FAQ
What is the maximum analog signal voltage range supported by the MAX4729ELT+TG05?
The MAX4729ELT+TG05 supports analog signals from 0V to V+, where V+ ranges from +1.8V to +5.5V. For example, with a +3.3V supply, the analog input/output range is 0V to +3.3V. Signals exceeding V+ or GND are clamped by internal diodes, so external protection is recommended if overvoltage is possible. This rail-to-rail capability ensures full utilization of ADC or DAC dynamic range in low-voltage systems.
Does the MAX4729ELT+TG05 require external pull-up or pull-down resistors on the IN pin?
No, the MAX4729ELT+TG05 does not require external pull-up or pull-down resistors on the IN pin. Its digital input has TTL/CMOS-compatible thresholds (VIL ≤ 0.4V, VIH ≥ 2.0V) and draws only ±1µA leakage current. The input is internally biased and functions reliably with direct connection to microcontroller GPIOs or logic gates-eliminating board space and power overhead associated with external biasing networks.
Can the MAX4729ELT+TG05 be used in bidirectional signal paths?
Yes, the MAX4729ELT+TG05 supports fully bidirectional analog signal flow between COM and either NO or NC. Its CMOS transmission-gate structure imposes no directionality-signals pass equally well from COM to NO/NC or from NO/NC to COM. This makes it ideal for shared-bus configurations, such as routing a single codec output to multiple transducers or consolidating sensor return lines in star-topology sensor networks.
What is the thermal performance of the MAX4729ELT+TG05 in its µDFN package?
The MAX4729ELT+TG05 in the 6-pin µDFN package (L611+1) has a power dissipation limit of 168mW at +70°C ambient, derating by 2.1mW/°C above that temperature. At maximum rated continuous current (±80mA per channel) and worst-case RON (5.7Ω), self-heating remains below 1°C rise under typical conditions-ensuring stable RON and leakage performance across the full -40°C to +85°C operating range without heatsinking.
How does the MAX4729ELT+TG05 handle power-supply sequencing?
The MAX4729ELT+TG05 requires V+ to be applied before analog signals to prevent latch-up or excessive leakage. Its absolute maximum ratings specify that COM/NO/NC voltages must stay within -0.3V to (V+ + 0.3V); applying analog signals before V+ risks forward-biasing internal ESD diodes. In systems with multiple supplies, sequence V+ first, then logic inputs, then analog sources-especially critical in hot-swap or modular sensor interfaces where signal lines may be live during power-up.
MAX4729ELT+TG05 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- -
- Number of Circuits:
- -
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX4729ELT+TG05 FAQ
1.How can I place an order for MAX4729ELT+TG05 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4729ELT+TG05 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 MAX4729ELT+TG05 reliable?
The price and inventory of MAX4729ELT+TG05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4729ELT+TG05 is usually 5 days.
3.What payment methods are accepted for MAX4729ELT+TG05?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4729ELT+TG05 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4729ELT+TG05?
MAX4729ELT+TG05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4729ELT+TG05 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 MAX4729ELT+TG05?
For technical support, including MAX4729ELT+TG05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4729ELT+TG05 requirements.
6.How does Aetrix verify that MAX4729ELT+TG05 is sourced from the original manufacturer or authorized distributors?
All MAX4729ELT+TG05 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 MAX4729ELT+TG05 meets industry standards.
7.What is the process for return or replacement of MAX4729ELT+TG05?
All MAX4729ELT+TG05 units undergo pre-shipment inspection (PSI). If there is an issue with MAX4729ELT+TG05, 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 MAX4729ELT+TG05 part is unused and in its original packaging.
Return procedure for MAX4729ELT+TG05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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