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Analog Devices Inc./Maxim Integrated MAX4694EGE+
- Part No.:
- MAX4694EGE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-VQFN Exposed Pad
- Datasheet:
-
MAX4694EGE+.pdf
- Description:
- IC SW SPDT-NO/NCX4 35OHM 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:150
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Product details
Overview
MAX4694EGE+ from Maxim Integrated is a quad single-pole/double-throw (SPDT) analog switch IC operating from a single +2V to +11V supply, featuring rail-to-rail signal handling, 35Ω max on-resistance at +5V, 1nA leakage current, and fast 90ns transition time - used for precision signal routing in battery-powered audio/video systems.
For engineers reviewing the MAX4694EGE+ datasheet, MAX4694EGE+ pinout, MAX4694EGE+ application, or MAX4694EGE+ equivalent, this page delivers verified electrical specs, UCSP-compatible QFN-EP package details, break-before-make timing, ±5V dual-supply compatibility notes (not applicable), and real-world use cases in cellular baseband switching and portable instrumentation.
Technical Context
The MAX4694EGE+ implements four independent SPDT switches with shared digital control inputs A (for W/Y channels) and B (for X/Z channels), enabling simultaneous or selective channel routing without address decoding logic. It uses CMOS transmission-gate architecture with matched P/N-channel pairs to ensure low RON flatness and channel-to-channel matching.
Unlike MAX4691–MAX4693, it omits V− pin and EN pin - simplifying single-supply design but removing dual-supply operation and global enable functionality. Its logic inputs are 1.8V-compatible at +3V supply and TTL-compatible at +5V, supporting direct interfacing with low-voltage microcontrollers and FPGAs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Configuration | Four independent SPDT switches (W, X, Y, Z), each with NC/NO paths and common terminal |
| Supply Voltage Range | +2V to +11V single supply only - no V− pin; GND referenced operation required |
| On-Resistance (RON) | 35Ω max at +5V supply - ensures minimal signal attenuation in audio and sensor paths |
| RON Matching | 5Ω max between channels at +2.7V - critical for balanced differential signal routing |
| Leakage Current | ±20nA max at +85°C - preserves accuracy in high-impedance sensor front-ends |
| Transition Time | 90ns typical tTRANS - supports multiplexing of audio-band and moderate-speed data signals |
| Off-Isolation | −80dB at 100kHz - suppresses crosstalk between inactive channels in multi-source systems |
Pinout & Package
MAX4694EGE+ uses a 16-pin QFN-EP (4mm × 4mm) package with exposed pad connected to V+. Pin numbering follows standard QFN layout; pin 1 is top-left corner (A1), pin 16 is bottom-left (D4).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (B4) | Y1 | Normally open input for Y-channel SPDT switch - connects to common Y when B = high |
| 3 (C4) | W1 | Normally open input for W-channel SPDT switch - connects to common W when A = high |
| 4 (D4) | W0 | Normally closed input for W-channel SPDT switch - connects to common W when A = low |
| 5 (D3) | W | Common terminal for W-channel SPDT - bidirectional signal path shared by W0/W1 |
| 6 (C3) | V+ | Positive supply for analog and digital circuitry - must be bypassed with 0.1µF capacitor |
| 7 (D2) | Z | Common terminal for Z-channel SPDT - bidirectional path shared by Z0/Z1 |
| 8 (D1) | Z0 | Normally closed input for Z-channel SPDT - connects to common Z when B = low |
| 9 (C1) | Z1 | Normally open input for Z-channel SPDT - connects to common Z when B = high |
| 10 (C2) | B | Digital control input for X and Z SPDTs - sets NO/NC state for both channels simultaneously |
| 11 (B1) | X1 | Normally open input for X-channel SPDT - connects to common X when B = high |
| 12 (A1) | X0 | Normally closed input for X-channel SPDT - connects to common X when B = low |
| 13 (A2) | X | Common terminal for X-channel SPDT - bidirectional path shared by X0/X1 |
| 14 (B2) | GND | Digital ground reference - must be tied to system ground; no analog ground reference |
| 15 (A3) | Y | Common terminal for Y-channel SPDT - bidirectional path shared by Y0/Y1 |
| 16 (A4) | Y0 | Normally closed input for Y-channel SPDT - connects to common Y when A = low |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V+ to GND - enables full dynamic range utilization in single-supply systems |
| Guaranteed break-before-make | 2ns minimum dead time prevents momentary shorting during channel switching - essential for power-sensitive circuits |
| Low 1nA leakage current | Minimizes error in high-impedance sensor interfaces and precision measurement paths |
| 1.8V logic compatibility | Direct interface with 1.8V/3.3V microcontrollers without level-shifting - reduces BOM count and board area |
| QFN-EP thermal performance | 1481mW max power dissipation at +70°C with 18.5mW/°C derating - supports compact thermal design |
Applications
| Audio Signal Routing | Cellular Baseband Switching |
|---|---|
Use Scenario: Selecting between multiple microphone inputs or speaker outputs in a smartphone or VoIP handset. IC Role / Device Role / Timing Role: Quad SPDT switch routing analog audio paths with <90ns transition time and −80dB off-isolation. Use Value: Enables flexible audio topology without signal degradation or audible click/pop due to guaranteed break-before-make timing. | Use Scenario: Switching RF front-end calibration paths and antenna diversity signals in LTE/5G transceivers. IC Role / Device Role / Timing Role: Isolating test loops and calibration references using low-leakage (<20nA), low-RON (35Ω) SPDT paths. Use Value: Maintains signal integrity across wide frequency range while minimizing insertion loss and harmonic distortion (0.02% THD). |
| Battery-Operated Instrumentation | Modem Analog Interface |
Use Scenario: Multiplexing thermistor, RTD, and potentiometer inputs into a single ADC channel in handheld test equipment. IC Role / Device Role / Timing Role: Precision analog switch providing matched RON (5Ω max) and low leakage for high-accuracy ratiometric measurements. Use Value: Eliminates need for external calibration per channel and preserves measurement linearity over temperature (−40°C to +85°C). | Use Scenario: Routing analog line-level signals (PSTN, DSL, V.92) between codec, line driver, and hybrid circuits in embedded modems. IC Role / Device Role / Timing Role: Low-crosstalk (−87dB) quad SPDT managing bidirectional voice/data paths with rail-to-rail swing. Use Value: Prevents signal coupling between transmit/receive paths and supports full-duplex operation without echo interference. |
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 |
|---|---|---|---|
| ADG734BRUZ | 4-channel SPDT, +1.8V to +5.5V supply, 4.5Ω RON max at +3V, no V+ tie to EP, different pinout | Lower RON but narrower voltage range - suited for ultra-low-voltage portable designs only | Select ADG734BRUZ when supply is ≤+3.6V and RON <5Ω is mandatory; verify PCB layout change required |
| TS5A3157DCUR | Single-supply quad SPDT, +1.65V to +5.5V, 10Ω RON max at +3V, 16-pin VSSOP, no exposed pad | Higher leakage (100nA) and lower isolation (−60dB) - acceptable for non-precision consumer audio | Choose TS5A3157DCUR for cost-sensitive, space-tolerant designs where thermal performance is secondary |
Compared with ADG734BRUZ and TS5A3157DCUR, MAX4694EGE+ offers wider supply range (+2V to +11V), superior off-isolation (−80dB), and integrated thermal management via QFN-EP - making it optimal for industrial-grade portable instrumentation requiring robust single-supply operation.
Availability
MAX4694EGE+ is available at Aetrix Electronics and suitable for audio signal routing, cellular baseband switching, and battery-operated instrumentation requiring stable component supply, RoHS compliance, and lead-free packaging.
Supply support for MAX4694EGE+ 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, automotive, and communications applications.
The MAX4691–MAX4694 family targets low-voltage, high-fidelity analog signal routing in space-constrained portable systems - emphasizing rail-to-rail operation, low leakage, and guaranteed timing behavior.
FAQ
What is the maximum supply voltage rating for MAX4694EGE+?
The MAX4694EGE+ has an absolute maximum V+ rating of +12V and operates over a recommended single-supply range of +2V to +11V. Exceeding +12V risks permanent damage. The device lacks a V− pin, so dual-supply operation is not supported - unlike MAX4691/MAX4692/MAX4693 variants. Always bypass V+ to GND with a 0.1µF ceramic capacitor.
Does MAX4694EGE+ support dual-supply operation like other MAX469x devices?
No, MAX4694EGE+ does not support dual-supply operation. It is designed exclusively for single-supply use with V+ and GND connections. The pinout omits V− and EN pins present on MAX4691–MAX4693, confirming its dedicated single-rail architecture. This simplifies power design but removes bipolar signal-handling capability.
What are the logic-level requirements for digital inputs A and B on MAX4694EGE+?
Inputs A and B on MAX4694EGE+ accept 1.8V logic-high thresholds when operating from a +3V supply (VIH = +1.4V min), and TTL-compatible levels at +5V (VIH = +2.0V min). Input leakage is ±1µA max. No external pull-ups are required - internal structure allows direct connection to microcontroller GPIOs with compatible voltage rails.
How is channel selection implemented in MAX4694EGE+ compared to MAX4691/MAX4692?
MAX4694EGE+ uses two digital control inputs - A controls W and Y SPDTs, B controls X and Z SPDTs - enabling grouped switching without address decoding. In contrast, MAX4691 uses three address bits (A/B/C) for 8:1 mux selection, and MAX4692 uses two bits (A/B) for dual 4:1 muxes. This makes MAX4694EGE+ ideal for parallel, paired-channel routing rather than sequential multiplexing.
Can MAX4694EGE+ be used in place of MAX4694EBE+ (UCSP) or MAX4694ETE+T (TQFN)?
Yes, MAX4694EGE+ is functionally identical to MAX4694EBE+ and MAX4694ETE+T - differing only in package: QFN-EP (4mm × 4mm) vs. UCSP (2mm × 2mm) vs. TQFN-EP (4mm × 4mm). All share identical electrical specs, pin functions, and thermal characteristics (except UCSP's lower thermal mass). PCB layout must match the chosen package's footprint and thermal pad requirements.
MAX4694EGE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPDT - NO/NC
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 35Ohm
- Channel-to-Channel Matching (ΔRon):
- 2Ohm
- Voltage - Supply, Single (V+):
- 2V ~ 11V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- 0.2pC
- Channel Capacitance (CS(off), CD(off)):
- 9pF
- Current - Leakage (IS(off)) (Max):
- 2nA
- Crosstalk:
- -87dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (4x4)
MAX4694EGE+ FAQ
1.How can I place an order for MAX4694EGE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4694EGE+ 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 MAX4694EGE+ reliable?
The price and inventory of MAX4694EGE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4694EGE+ is usually 5 days.
3.What payment methods are accepted for MAX4694EGE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4694EGE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4694EGE+?
MAX4694EGE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4694EGE+ 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 MAX4694EGE+?
For technical support, including MAX4694EGE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4694EGE+ requirements.
6.How does Aetrix verify that MAX4694EGE+ is sourced from the original manufacturer or authorized distributors?
All MAX4694EGE+ 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 MAX4694EGE+ meets industry standards.
7.What is the process for return or replacement of MAX4694EGE+?
All MAX4694EGE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4694EGE+, 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 MAX4694EGE+ part is unused and in its original packaging.
Return procedure for MAX4694EGE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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