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Analog Devices Inc./Maxim Integrated MAX4706EXK+T
- Part No.:
- MAX4706EXK+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MAX4706EXK+T.pdf
- Description:
- IC SWITCH SPST-NCX1 3OHM SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:7,865
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Product details
Overview
MAX4706EXK+T from Maxim Integrated is a normally closed (NC) single-pole/single-throw (SPST) CMOS analog switch operating from 1.8V to 5.5V supply, delivering 3.5Ω max on-resistance and 0.9Ω on-resistance flatness at +2.7V, with 0.02µA quiescent current and -67dB off-isolation at 1MHz - deployed in battery-powered audio routing and low-voltage data-acquisition systems.
For engineers reviewing the MAX4706EXK+T datasheet, MAX4706EXK+T pinout, MAX4706EXK+T application, or MAX4706EXK+T equivalent, key selection criteria include guaranteed RON performance across temperature, SC70-5 package footprint compatibility, low charge injection (5pC), and TTL/CMOS logic interface requirements for portable signal-switching designs.
Technical Context
The MAX4706EXK+T implements a single-channel SPST switch with NC configuration controlled by a single digital input (IN), where logic low closes the COM–NC path and logic high opens it. Its CMOS architecture ensures rail-to-rail analog signal handling (0V to V+) and supports bipolar operation when GND is biased below ground.
It features ESD protection diodes between each analog terminal (COM, NC) and both V+ and GND, contributing to leakage behavior that varies with signal voltage. Dynamic performance includes 20ns typical turn-on time, 15ns turn-off time, and 190MHz –3dB bandwidth under 50Ω load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 3.5Ω max at V+ = 2.7V, ICOM = 10mA - ensures minimal voltage drop and signal attenuation in precision analog paths. |
| RON Flatness | 0.97Ω max over full analog signal range - maintains consistent gain and linearity across input voltage swing. |
| Off-Isolation | -67dB at 1MHz - suppresses crosstalk between active and inactive signal paths in multiplexed systems. |
| Supply Current | 0.02µA typical at +25°C - enables multi-year battery life in always-on portable instrumentation. |
| Charge Injection | 5pC - limits voltage glitch on sample-and-hold capacitors during switching transitions. |
| Bandwidth (-3dB) | 190MHz - supports high-fidelity audio and baseband data signals without roll-off. |
| THD | 0.013% at 20Hz–20kHz - preserves audio fidelity in consumer and professional signal routing. |
Pinout & Package
The MAX4706EXK+T is housed in a 5-pin SC70-5 package (top mark AFO), measuring 2.0mm × 1.25mm × 0.95mm, optimized for space-constrained portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COM | Analog common terminal | Shared connection point for signal routing; must be referenced to system ground or signal return path. |
| 2 - NC | Normally closed analog terminal | Electrically connected to COM when IN = low; open-circuit when IN = high. |
| 3 - GND | Ground reference | Provides substrate reference for internal CMOS switches and ESD protection network. |
| 4 - IN | Digital control input | TTL/CMOS-compatible logic input; low = ON (COM–NC closed), high = OFF (open). |
| 5 - V+ | Positive supply rail | Single supply input (1.8V–5.5V); powers internal switch core and logic interface. |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed RON spec | 3.5Ω max across -40°C to +85°C - eliminates need for post-calibration in industrial sensor front-ends. |
| Low leakage current | <±2nA off-leakage over full temperature range - prevents DC error accumulation in high-impedance sample-and-hold circuits. |
| High off-isolation | -67dB at 1MHz - enables clean channel separation in multi-input audio mixers and telecom line cards. |
| Ultra-low supply current | 0.02µA typical - allows integration into wake-on-event subsystems without compromising standby power budget. |
| Small SC70-5 footprint | 2.0mm × 1.25mm - reduces board area by >50% vs. SOIC-8 alternatives while maintaining hand-solderability. |
Applications
| Battery-Powered Audio Routing | Low-Voltage Data-Acquisition Systems |
|---|---|
Use Scenario: Switching microphone or line-level audio signals between multiple codecs or ADC inputs in wearables and Bluetooth headsets. IC Role / Device Role / Timing Role: NC SPST analog switch providing zero-crossing–aware signal path selection with minimal THD and noise coupling. Use Value: 0.013% THD and 190MHz bandwidth preserve full audio spectrum integrity while 3.5Ω RON avoids level mismatch between sources. | Use Scenario: Multiplexing sensor outputs (thermocouples, RTDs, strain gauges) into a shared precision ADC in handheld test equipment. IC Role / Device Role / Timing Role: Low-leakage, rail-to-rail analog switch enabling accurate DC-coupled signal acquisition without offset drift. Use Value: ±2nA max off-leakage and 0.97Ω RON flatness ensure sub-LSB error contribution across 16-bit measurement ranges. |
| Sample-and-Hold Circuits | Relay Replacement in Portable Equipment |
Use Scenario: Controlling hold capacitor charging/discharging cycles in precision analog-to-digital conversion stages of portable DMMs. IC Role / Device Role / Timing Role: Fast, low-charge-injection switch isolating the hold capacitor from input source during acquisition phase. Use Value: 5pC charge injection minimizes voltage step error on 10nF hold capacitors, supporting 18-bit effective resolution. | Use Scenario: Replacing electromechanical relays in portable medical devices (e.g., ECG lead selectors) requiring silent, shock-resistant switching. IC Role / Device Role / Timing Role: Solid-state NC switch delivering infinite cycle life, no contact bounce, and µA-level control power. Use Value: 0.02µA quiescent current and SC70-5 size enable compact, battery-operated relay-replacement modules with no coil drive circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617EUK+T | NO configuration, 3Ω RON, SC70-5, same temp range and supply range | Requires inverted logic control; unsuitable where NC default state is safety-critical | Select when fail-open behavior is required and logic inversion is acceptable in system firmware. |
| ADG801BRMZ-REEL7 | NO switch, 0.3Ω RON, 1.8V–5.5V, MSOP-8 package | Lower RON but larger footprint and higher supply current (10nA vs. 0.02µA) | Prefer for ultra-low-loss signal paths where board space and standby power are secondary to conduction loss. |
Compared with MAX4706EXK+T, MAX4617EUK+T offers identical form factor and supply specs but inverted functionality, while ADG801BRMZ-REEL7 trades SC70-5 compactness and nanoamp quiescent draw for lower RON in an MSOP-8 layout - making MAX4706EXK+T optimal for NC-default, space- and power-constrained portable designs.
Availability
MAX4706EXK+T is available at Aetrix Electronics and suitable for battery-operated equipment, audio signal routing, and low-voltage data-acquisition systems requiring stable component supply, long-term manufacturability, and guaranteed -40°C to +85°C operation.
Supply support for MAX4706EXK+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 industrial, medical, communications, and consumer applications.
The MAX4706/MAX4707 product line delivers low-RON, low-power SPST analog switches optimized for portable, battery-sensitive systems requiring rail-to-rail signal handling and minimal THD in compact SC70 and µDFN packages.
FAQ
What is the maximum operating supply voltage for the MAX4706EXK+T?
The MAX4706EXK+T supports a maximum operating supply voltage of +6V absolute maximum, with recommended functional operation up to +5.5V. Exceeding +6V risks permanent damage per its Absolute Maximum Ratings table. The device is characterized for reliable performance from 1.8V to 5.5V, and the MAX4706EXK+T datasheet specifies electrical parameters within this range - including 3.5Ω RON and 0.02µA supply current - ensuring predictable behavior across its full rated supply window.
Does the MAX4706EXK+T support bipolar analog signals?
Yes, the MAX4706EXK+T supports bipolar analog signals when V+ and GND are biased from a dual supply - for example, with V+ = +2V and GND = -2V, the switch accepts ±1VP-P signals. This capability arises from internal ESD diodes tied between each analog terminal (COM, NC) and both V+ and GND, allowing signal excursions beyond the supply rails. However, forward current through those diodes must remain within ±300mA peak (1ms, 10% duty cycle), and the MAX4706EXK+T datasheet confirms this mode is valid only when external current limiting is applied.
What is the thermal performance limit for continuous operation of the MAX4706EXK+T?
The MAX4706EXK+T has an operating temperature range of -40°C to +85°C and a maximum junction temperature of +150°C. In its SC70-5 package, it dissipates up to 247mW at +70°C ambient, derating by 3.1mW/°C above that point. Thermal design must account for power dissipation from analog current (±160mA continuous through COM/NC) and supply current (0.02µA). The MAX4706EXK+T's low quiescent draw minimizes self-heating, but high-current signal paths require careful PCB copper pour and thermal vias to maintain reliability within its specified junction limit.
How does the MAX4706EXK+T handle power-supply sequencing?
The MAX4706EXK+T requires proper power-supply sequencing: V+ must be applied before any analog signal appears on COM or NC terminals. This prevents forward biasing of internal ESD diodes, which could cause excessive leakage or latch-up. The MAX4706EXK+T datasheet explicitly cautions against exceeding absolute maximum ratings during startup and recommends current-limiting analog sources if sequencing cannot be guaranteed. Failure to observe this sequence may degrade long-term reliability or cause transient errors in sensitive measurement circuits using the MAX4706EXK+T.
Is the MAX4706EXK+T pin-compatible with other variants in the MAX4706/MAX4707 family?
The MAX4706EXK+T (SC70-5, NC) shares identical pinout with the MAX4707EXK+T (SC70-5, NO) - both use pins 1=COM, 2=NC/NO, 3=GND, 4=IN, 5=V+. However, it is not pin-compatible with SC70-6 or µDFN-6 variants, which add a sixth pin (N.C.) and relocate terminals. The MAX4706EXK+T pin mapping is validated per Maxim's Pin Description table and SC70-5 top-view diagram, confirming direct replacement only among SC70-5 versions - meaning MAX4706EXK+T can substitute for MAX4707EXK+T in hardware with logic inversion, but not for MAX4706EXT-T or MAX4706ELT-T without PCB redesign.
MAX4706EXK+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 3Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 20ns, 15ns
- -3db Bandwidth:
- 190MHz
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 17pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
MAX4706EXK+T FAQ
1.How can I place an order for MAX4706EXK+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4706EXK+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 MAX4706EXK+T reliable?
The price and inventory of MAX4706EXK+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4706EXK+T is usually 5 days.
3.What payment methods are accepted for MAX4706EXK+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4706EXK+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4706EXK+T?
MAX4706EXK+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4706EXK+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 MAX4706EXK+T?
For technical support, including MAX4706EXK+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4706EXK+T requirements.
6.How does Aetrix verify that MAX4706EXK+T is sourced from the original manufacturer or authorized distributors?
All MAX4706EXK+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 MAX4706EXK+T meets industry standards.
7.What is the process for return or replacement of MAX4706EXK+T?
All MAX4706EXK+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4706EXK+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 MAX4706EXK+T part is unused and in its original packaging.
Return procedure for MAX4706EXK+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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