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Analog Devices Inc./Maxim Integrated MAX4702ETE
- Part No.:
- MAX4702ETE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
MAX4702ETE.pdf
- Description:
- IC SW SPDT-NO/NCX4 40OHM 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:905
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Product details
Overview
MAX4702ETE from Maxim Integrated is a quad single-pole/double-throw (SPDT) CMOS analog switch operating from a single +1.8V to +5.5V supply with 1.0V logic threshold, 75Ω max on-resistance at +3V, 35ns turn-on time, and rail-to-rail signal handling. It serves as a low-voltage signal routing device in portable audio paths and battery-powered communication interfaces.
For engineers reviewing the MAX4702ETE datasheet, MAX4702ETE pinout, MAX4702ETE application, or MAX4702ETE equivalent, key selection criteria include guaranteed break-before-make timing, channel matching ≤4Ω, off-isolation of –76dB at 1MHz, and compatibility with 1.5V logic supply via dedicated VL pin.
Technical Context
The MAX4702ETE implements four independent SPDT switches controlled by a single digital input (IN), with separate VL pin enabling 1.0V VIH logic compatibility at 1.5V logic supply. Its CMOS architecture ensures bidirectional analog signal flow across COM/NO/NC terminals with no polarity constraints.
Break-before-make switching is guaranteed (tBBM ≤ 1ns at +3V), preventing momentary shorting during state transitions. On-resistance flatness remains ≤12Ω over full signal range (0V to V+), and leakage stays ≤1nA at +85°C - critical for precision signal integrity in low-power sensor and audio front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RON) | 75Ω max at +3V supply - ensures minimal insertion loss in audio and data signal paths |
| On-resistance matching (ΔRON) | 4Ω max between channels - enables precise differential or balanced signal routing |
| Turn-on time (tON) | 35ns max at +3V - supports high-speed multiplexing in USB 2.0 and audio codec switching |
| Off-isolation | –76dB at 1MHz - suppresses crosstalk between active and inactive signal paths |
| Rail-to-rail analog range | 0V to V+ - allows full-swing signal handling without clipping in single-supply systems |
| Logic threshold (VIH) | 1.0V min with VL = +1.5V - enables direct interface with 1.8V/1.5V microcontrollers and FPGAs |
| Leakage current | 1nA max at +85°C - preserves accuracy in high-impedance sensor and medical monitoring circuits |
Pinout & Package
MAX4702ETE is housed in a 3mm × 3mm, 16-pin TQFN-EP package with exposed pad connected to GND for thermal and EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NO1) | Analog output - normally open terminal of Switch 1 | Connects to COM1 when IN = high; used for signal path selection in audio routing |
| 2 (V+) | Positive analog supply input | Accepts +1.8V to +5.5V; powers analog switch core and defines signal swing range |
| 3 (NC4) | Analog output - normally closed terminal of Switch 4 | Connects to COM4 when IN = low; provides default signal path before activation |
| 4 (COM4) | Analog common terminal of Switch 4 | Central node for bidirectional signal routing - connects to NO4 or NC4 based on IN state |
| 5 (NO4) | Analog output - normally open terminal of Switch 4 | Active path for Switch 4 when IN = high; pairs with COM4 for SPDT function |
| 6 (VL) | Dedicated logic supply input | Sets 1.0V VIH threshold; must be ≥1.5V and powered after V+ for reliable logic operation |
| 7 (NC3) | Analog output - normally closed terminal of Switch 3 | Default path for Switch 3; disconnects from COM3 when IN = high |
| 8 (COM3) | Analog common terminal of Switch 3 | Bidirectional signal hub for Switch 3; shared between NO3 and NC3 |
| 9 (NO3) | Analog output - normally open terminal of Switch 3 | Activated path for Switch 3; routes signal from COM3 when IN = high |
| 10 (COM1) | Analog common terminal of Switch 1 | Primary signal entry point for Switch 1; connects to NO1 or NC1 per control state |
| 11 (NC1) | Analog output - normally closed terminal of Switch 1 | Default connection for COM1; opens when IN = high to engage NO1 |
| 12 (COM2) | Analog common terminal of Switch 2 | Signal junction for Switch 2; supports bidirectional routing to NO2 or NC2 |
| 13 (IN) | Digital control input for all four SPDT switches | Single-pin global enable: high → connect COMx to NOx; low → connect COMx to NCx |
| 14 (NO2) | Analog output - normally open terminal of Switch 2 | Active path for Switch 2 when IN = high; used in dual-channel audio mute or source select |
| 15 (NC2) | Analog output - normally closed terminal of Switch 2 | Standby path for Switch 2; maintains continuity until IN goes high |
| 16 (GND) | Ground reference for analog and digital domains | Common return for V+, VL, and all analog signals; exposed pad must be soldered to GND plane |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed break-before-make | tBBM ≤ 1ns at +3V - eliminates signal shorting during transition, critical for relay replacement |
| Low on-resistance flatness | 12Ω max RFLAT(ON) - maintains consistent gain/attenuation across full 0V–V+ signal range |
| 1.0V logic-compatible input | VIH = 1.0V min with VL = +1.5V - enables direct interfacing with ultra-low-voltage MCUs without level shifters |
| Rail-to-rail signal handling | 0V to V+ analog range - supports full dynamic range in single-supply audio, sensor, and data acquisition |
| High off-isolation | –76dB at 1MHz - isolates unused signal paths to prevent interference in multi-source systems |
| Quad SPDT configuration | Four independent switches sharing one IN pin - simplifies PCB layout and reduces GPIO count in compact designs |
Applications
| Audio Signal Routing | Portable Communication Interface |
|---|---|
|
Use Scenario: Selecting between microphone inputs or speaker outputs in smartphones and wearables. IC Role / Device Role / Timing Role: Quad SPDT analog switch routing bidirectional audio paths with <35ns switching and <1nA leakage. Use Value: Enables zero-crossing mute and fast source switching without audible pop/click due to guaranteed break-before-make and rail-to-rail operation. |
Use Scenario: Multiplexing UART, I²C, or USB D+/D– lines between baseband processor and peripheral ICs in handheld devices. IC Role / Device Role / Timing Role: Low-capacitance (20pF on), high-bandwidth (250MHz) analog switch managing high-speed digital signal routing. Use Value: Preserves signal integrity up to 48MHz clock rates while supporting 1.5V logic supply for compatibility with modern SoCs. |
| Battery-Powered Sensor Hub | Medical Front-End Multiplexer |
|
Use Scenario: Scanning multiple analog sensor outputs (temperature, accelerometer, ambient light) into a single ADC channel. IC Role / Device Role / Timing Role: Precision analog switch with 4Ω max channel matching and 1nA leakage at +85°C. Use Value: Minimizes measurement error and offset drift across channels, extending battery life via +1.8V operation and sub-µA supply current. |
Use Scenario: Isolating ECG, EEG, or pulse oximetry sensor inputs in portable diagnostic equipment. IC Role / Device Role / Timing Role: Medical-grade analog switch providing –76dB off-isolation and <1nA leakage to meet IEC 60601 leakage limits. Use Value: Ensures patient safety and signal fidelity by eliminating cross-coupling between high-impedance biopotential inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4699ETE+ | Dual DPDT (2×SPDT per section), 4mm×4mm TQFN, no VL pin, 1.4V VIH at +3V | Requires higher logic voltage; suited for systems with 3V GPIO but not 1.5V/1.8V logic | Select when dual independent DPDT functionality is needed and logic supply ≥2.7V is available. |
| ADG714BRUZ | Quad SPDT, 16-TSSOP, 4.5Ω RON at +5V, no VL pin, VIH = 2.0V min, 125MHz bandwidth | Lower on-resistance at +5V but lacks 1.0V logic threshold; requires level-shifting for sub-1.8V controllers | Choose for higher bandwidth and lower RON in +5V systems where logic compatibility is not constrained. |
Compared with MAX4702ETE, MAX4699ETE+ offers dual DPDT topology but lacks VL-based low-threshold logic, while ADG714BRUZ delivers lower RON at +5V yet cannot interface directly with 1.5V logic - making MAX4702ETE uniquely suited for ultra-low-voltage portable designs requiring quad SPDT routing without external level shifters.
Availability
MAX4702ETE is available at Aetrix Electronics and suitable for audio signal routing, portable communication interface, and battery-powered sensor hub applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX4702ETE 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 high-performance analog and mixed-signal ICs for power, sensing, connectivity, and signal conditioning applications.
The MAX4702ETE belongs to Maxim's low-voltage analog switch product line, engineered specifically for space-constrained, battery-operated systems demanding rail-to-rail signal handling, sub-1V logic compatibility, and guaranteed break-before-make timing.
FAQ
What is the logic supply requirement for MAX4702ETE?
The MAX4702ETE requires a dedicated VL pin supplied with +1.5V to +V+ to set its 1.0V logic high threshold. This enables direct interface with 1.5V/1.8V microcontrollers without level shifters. VL must be powered after V+ to ensure proper initialization; applying VL before V+ may cause undefined behavior in the MAX4702ETE.
Does MAX4702ETE support rail-to-rail analog signals?
Yes, the MAX4702ETE supports rail-to-rail analog signal handling from 0V to V+. Its CMOS switch architecture maintains low and stable on-resistance across the full supply range, allowing undistorted transmission of signals such as audio waveforms or sensor outputs that swing fully between ground and V+ - a key capability confirmed in the MAX4702ETE datasheet's Typical Operating Characteristics.
What is the guaranteed break-before-make interval for MAX4702ETE?
The MAX4702ETE guarantees a break-before-make (BBM) interval of ≤1ns at +3V supply, measured under RL = 300Ω and CL = 35pF conditions. This prevents momentary shorting between NO and NC paths during switching transitions - essential for protecting downstream circuitry and avoiding glitches in sensitive analog or power-switching applications using the MAX4702ETE.
Can MAX4702ETE operate from a +1.8V supply?
Yes, the MAX4702ETE is fully specified for operation from +1.8V to +5.5V. At +1.8V, it maintains functional switching with typical on-resistance around 110Ω and tON/tOFF within specification limits. This makes the MAX4702ETE suitable for ultra-low-power applications such as coin-cell–powered IoT sensors and hearing aids where supply headroom is minimal.
How does the VL pin affect logic compatibility in MAX4702ETE?
The VL pin in the MAX4702ETE sets the reference for logic thresholds: with VL = +1.5V, VIH is guaranteed ≥1.0V and VIL ≤0.4V. This allows the MAX4702ETE to accept clean logic signals from 1.5V or 1.8V processors without external translation. If VL is tied to V+, the MAX4702ETE reverts to standard 3V-compatible thresholds - a flexibility unique to the MAX4702ETE among its family members.
MAX4702ETE 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:
- 4
- On-State Resistance (Max):
- 40Ohm
- Channel-to-Channel Matching (ΔRon):
- 1Ohm
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 35ns, 20ns
- -3db Bandwidth:
- 250MHz
- Charge Injection:
- 0.5pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -79dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN-EP (3x3)
MAX4702ETE FAQ
1.How can I place an order for MAX4702ETE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4702ETE 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 MAX4702ETE reliable?
The price and inventory of MAX4702ETE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4702ETE is usually 5 days.
3.What payment methods are accepted for MAX4702ETE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4702ETE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4702ETE?
MAX4702ETE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4702ETE 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 MAX4702ETE?
For technical support, including MAX4702ETE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4702ETE requirements.
6.How does Aetrix verify that MAX4702ETE is sourced from the original manufacturer or authorized distributors?
All MAX4702ETE 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 MAX4702ETE meets industry standards.
7.What is the process for return or replacement of MAX4702ETE?
All MAX4702ETE units undergo pre-shipment inspection (PSI). If there is an issue with MAX4702ETE, 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 MAX4702ETE part is unused and in its original packaging.
Return procedure for MAX4702ETE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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