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Analog Devices Inc./Maxim Integrated MAX4704ETC
- Part No.:
- MAX4704ETC
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFQFN Exposed Pad
- Datasheet:
-
MAX4704ETC.pdf
- Description:
- IC SW SP4T-NO/NCX1 40OHM 12TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,718
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Product details
Overview
MAX4704ETC from Maxim Integrated is a low-voltage, 4-channel analog multiplexer (4:1 MUX) operating from a single +1.8V to +5.5V supply. It delivers 60Ω max on-resistance at +2.7V, 3Ω max RON matching, and break-before-make switching with tON = 60ns / tOFF = 20ns at +3V. It serves in audio/video routing and low-voltage data-acquisition systems where rail-to-rail signal handling and low charge injection (3pC) are critical.
For engineers reviewing the MAX4704ETC datasheet, MAX4704ETC pinout, MAX4704ETC application, or MAX4704ETC equivalent, this page provides verified electrical parameters, QFN-EP package details, real-world use scenarios, and two confirmed alternative parts for design flexibility in portable and battery-powered systems.
Technical Context
The MAX4704ETC implements a CMOS-based 4:1 analog switch matrix controlled by dual address bits (ADDA, ADDB) and an active-low inhibit (INH). Its break-before-make architecture prevents momentary shorting between channels during switching transitions, with guaranteed tBBM ≤ 2ns.
It supports rail-to-rail analog signals (0V to V+), exhibits >200MHz -3dB bandwidth, -90dB crosstalk at 1MHz, and -85dB off-isolation - enabling high-fidelity signal routing in audio and communications circuits without external buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.8V to +5.5V single supply - enables direct interface with 1.8V/2.7V/3.3V/5V logic and analog domains. |
| On-Resistance (RON) | 60Ω max at +2.7V - ensures minimal signal attenuation and gain error in precision sensor or audio paths. |
| RON Matching | 3Ω max between channels - maintains channel-to-channel signal integrity in differential or multi-path routing. |
| Switching Time (tON/tOFF) | 60ns/20ns at +3V - supports fast multiplexing in data acquisition and digital control loops. |
| Charge Injection | 3pC max - reduces voltage glitch and settling time in sample-and-hold or ADC front-end applications. |
| Crosstalk | -90dB at 1MHz - prevents interference between active and inactive channels in mixed-signal routing. |
| Off-Isolation | -85dB at 1MHz - blocks leakage from powered-off channels into sensitive analog nodes. |
Pinout & Package
MAX4704ETC is packaged in a 12-pin QFN with exposed pad (3mm × 3mm, G1233-1 footprint), optimized for thermal performance and space-constrained PCBs. The exposed pad must be soldered to a large ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply input | Accepts +1.8V to +5.5V; powers internal CMOS switches and logic; must be applied before analog signals. |
| GND | Ground reference | Return path for supply and analog signals; connects internally to exposed pad in QFN package. |
| COM | Common analog terminal | Bidirectional node shared across all four switched paths; handles rail-to-rail signals (0V to V+). |
| NO0–NO3 | Normally-open analog inputs/outputs | Four independent analog terminals; only one connects to COM per address state; no internal connection when deselected. |
| ADDA / ADDB | Dual-bit address decoder inputs | Selects NO0–NO3 via binary code (00–11); TTL/CMOS compatible depending on V+ level. |
| INH | Active-low inhibit control | Pulls all switches open when high; enables global disable without changing address lines. |
| N.C. | No connection | Pins 2 and 8 (µMAX) / Pins 2 and 8 (QFN) are unconnected - must be left floating or tied to GND per layout best practice. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog inputs from 0V to V+ without clipping or distortion - essential for full-scale battery-powered sensor interfaces. |
| Break-before-make switching | Guaranteed tBBM ≤ 2ns prevents inter-channel shorting - critical for relay replacement and fault-tolerant signal routing. |
| Low THD (0.02%) | Minimizes harmonic distortion in audio-frequency paths up to 20kHz - suitable for MP3 player line-level switching. |
| 1.8V logic compatibility | Accepts 1.8V logic thresholds at +2.7V to +3.3V supply - enables direct interfacing with ultra-low-power microcontrollers. |
| Low leakage current | ≤100pA max NO_ off-leakage at +25°C - preserves accuracy in high-impedance sensor or medical monitoring circuits. |
Applications
| MP3 Player Audio Routing | Battery-Operated Data Acquisition |
|---|---|
Use Scenario: Switching between multiple audio sources (microphone, line-in, DAC output) in portable music players. IC Role / Device Role / Timing Role: 4:1 analog multiplexer selecting bidirectional audio paths with rail-to-rail support and <0.02% THD. Use Value: Eliminates mechanical relays while maintaining CD-quality audio fidelity and extending battery life via +1.8V logic compatibility. |
Use Scenario: Multiplexing sensor outputs (thermocouples, strain gauges) into a single ADC input in handheld test equipment. IC Role / Device Role / Timing Role: Low-leakage, low-RON analog switch enabling high-resolution measurements without gain/offset drift. Use Value: 3Ω RON matching and 100pA leakage preserve measurement accuracy across channels without calibration overhead. |
| Cellular Phone Baseband Switching | PCMCIA Card Signal Management |
Use Scenario: Routing RF front-end signals (antenna diversity, Tx/Rx paths) within compact cellular handset baseband modules. IC Role / Device Role / Timing Role: High-bandwidth (>200MHz) analog MUX with -90dB crosstalk isolating concurrent Tx/Rx bands. Use Value: Prevents self-interference and meets stringent EMI requirements without adding shielding or layout spacing. |
Use Scenario: Managing analog I/O lines (audio, modem, legacy peripherals) on hot-pluggable PCMCIA cards. IC Role / Device Role / Timing Role: Fault-tolerant analog switch with overvoltage protection support and break-before-make timing. Use Value: Enables safe insertion/removal under power using external diode protection while maintaining signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617EUA+ | Single SPST switch (not 4:1 MUX); 35Ω RON at +3V; no ADDB/ADDA pins; requires external logic for channel selection. | Suitable only for on/off enable of one path - not a functional substitute for multiplexing multiple inputs to one output. | Select MAX4617EUA+ only when discrete switch control is needed; not for address-decoded routing. |
| TMUX1308PWR | 8-channel 1:1 MUX (not 4:1); 4.5Ω RON at +3.3V; 1.8V logic compatible; -75dB crosstalk at 1MHz. | Higher channel count but lower isolation and flatness; lacks break-before-make guarantee and 200MHz bandwidth. | Choose TMUX1308PWR for higher-density, lower-RON needs where crosstalk and bandwidth are less critical. |
Compared with MAX4704ETC, MAX4617EUA+ offers lower RON but no multiplexing capability, while TMUX1308PWR provides more channels with better RON but sacrifices isolation, bandwidth, and guaranteed break-before-make - making MAX4704ETC optimal for high-fidelity, timing-critical 4:1 routing.
Availability
MAX4704ETC is available at Aetrix Electronics and suitable for MP3 players, battery-operated data-acquisition systems, and cellular phone baseband modules requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature.
Supply support for MAX4704ETC 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, automotive, and consumer applications.
The MAX4704ETC belongs to Maxim's low-voltage analog switch family, engineered specifically for portable and energy-sensitive systems demanding rail-to-rail operation, sub-100pA leakage, and nanosecond switching.
FAQ
What is the maximum supply voltage rating for the MAX4704ETC?
The MAX4704ETC has an absolute maximum V+ rating of +6V. Operation beyond this voltage risks permanent damage. The device is specified for reliable operation from +1.8V to +5.5V, with on-resistance and switching times characterized at +2.7V, +3V, and +5V supplies. Always apply V+ before analog signals to avoid latch-up or ESD stress.
Does the MAX4704ETC support bidirectional analog signal flow?
Yes, the MAX4704ETC supports fully bidirectional signal routing between COM and any selected NOx pin. Its CMOS switch architecture imposes no directionality - COM can serve as input or output, and NO0–NO3 function identically in either direction. This enables flexible use in both signal distribution and feedback path switching.
What is the purpose of the exposed pad on the MAX4704ETC QFN package?
The exposed pad on the MAX4704ETC QFN package is internally connected to GND and must be soldered to a large PCB ground plane. It significantly improves thermal dissipation (derating factor 11.9mW/°C above +70°C) and reduces junction-to-board thermal resistance - critical for maintaining RON stability and long-term reliability in compact, thermally constrained layouts.
Can the MAX4704ETC operate with 1.8V logic inputs when powered from a 5V supply?
No - 1.8V logic compatibility is guaranteed only when V+ is between +2.7V and +3.3V. At +5V supply, the MAX4704ETC requires VIH ≥ +2.0V and VIL ≤ +0.8V (TTL-compatible levels). Driving ADDA/ADDB/INH with 1.8V logic at +5V V+ may result in undefined switching behavior or increased static current.
How does the break-before-make timing affect system-level design with the MAX4704ETC?
The MAX4704ETC guarantees tBBM ≤ 2ns, preventing simultaneous conduction between channels during address transitions. This eliminates risk of momentary shorts in relay-replacement or power-path switching applications. No external timing delays or hold-time constraints are required - address changes can occur at full system clock rate without additional glue logic.
MAX4704ETC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SP4T - NO/NC
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 1
- 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:
- 200MHz
- Charge Injection:
- 3pC
- Channel Capacitance (CS(off), CD(off)):
- 7pF, 15pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -90dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-TQFN (3x3)
MAX4704ETC FAQ
1.How can I place an order for MAX4704ETC through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4704ETC 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 MAX4704ETC reliable?
The price and inventory of MAX4704ETC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4704ETC is usually 5 days.
3.What payment methods are accepted for MAX4704ETC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4704ETC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4704ETC?
MAX4704ETC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4704ETC 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 MAX4704ETC?
For technical support, including MAX4704ETC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4704ETC requirements.
6.How does Aetrix verify that MAX4704ETC is sourced from the original manufacturer or authorized distributors?
All MAX4704ETC 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 MAX4704ETC meets industry standards.
7.What is the process for return or replacement of MAX4704ETC?
All MAX4704ETC units undergo pre-shipment inspection (PSI). If there is an issue with MAX4704ETC, 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 MAX4704ETC part is unused and in its original packaging.
Return procedure for MAX4704ETC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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