Analog Devices Inc./Maxim Integrated MAX4694ETE+T
- Part No.:
- MAX4694ETE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX4694ETE+T.pdf
- Description:
- IC SWITCH SPDT X 4 70OHM 16TQFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
The MAX4694ETE+T 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 MAX4694ETE+T datasheet, MAX4694ETE+T pinout, MAX4694ETE+T application, or MAX4694ETE+T equivalent, key selection criteria include guaranteed break-before-make timing, ±5V dual-supply compatibility of related family members, low crosstalk (-87dB), and TQFN-EP package thermal performance for space-constrained portable designs.
Technical Context
The MAX4694 implements four independent SPDT switches with shared digital control inputs A (for W/Y channels) and B (for X/Z channels), enabling compact routing without address decoding logic. Each switch supports bidirectional analog signals spanning the full V+ to GND range.
It uses CMOS transmission-gate architecture with integrated level translators that accept 1.8V logic at +3V supply and TTL-compatible inputs at +5V supply. Unlike MAX4691–MAX4693, it omits V− pin and EN pin, simplifying single-supply biasing and reducing external component count.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2V to +11V single supply only - eliminates need for negative rail or charge pump in portable systems. |
| On-Resistance (max) | 35Ω at +5V - ensures minimal signal attenuation and distortion in audio paths up to 20kHz. |
| Leakage Current (max) | ±20nA at +85°C - preserves DC accuracy in sensor front-ends and precision instrumentation. |
| Transition Time | 90ns typical - supports high-speed multiplexing in data acquisition and communication interface switching. |
| Crosstalk | -87dB at 100kHz - prevents interference between adjacent switched audio or video channels. |
| Off-Isolation | -80dB at 100kHz - maintains channel separation during inactive states in multi-source routing. |
| Logic Compatibility | 1.8V logic at +3V supply; TTL at +5V - enables direct interfacing with microcontrollers and FPGAs without level shifters. |
Pinout & Package
MAX4694ETE+T is housed in a 16-pin TQFN-EP (3mm × 3mm, 0.5mm pitch) with exposed pad connected to V+ for thermal and electrical integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (B4) | Y1 | Normally open terminal of Y-channel SPDT switch - connects to Y common when B = high. |
| 3 (C4) | W1 | Normally open terminal of W-channel SPDT switch - connects to W common when A = high. |
| 4 (D4) | W0 | Normally closed terminal of W-channel SPDT switch - connects to W common when A = low. |
| 5 (D3) | W | Common terminal of W-channel SPDT switch - bidirectional I/O path routed to W0 or W1. |
| 6 (C3) | V+ | Positive supply for analog switches and internal logic - must be bypassed with 0.1µF capacitor. |
| 7 (D2) | Z | Common terminal of Z-channel SPDT switch - bidirectional I/O path routed to Z0 or Z1. |
| 8 (D1) | Z0 | Normally closed terminal of Z-channel SPDT switch - connects to Z common when B = low. |
| 9 (C1) | Z1 | Normally open terminal of Z-channel SPDT switch - connects to Z common when B = high. |
| 10 (C2) | B | Digital control input for X and Z channels - determines connection state of X0/X1 and Z0/Z1. |
| 11 (B1) | X1 | Normally open terminal of X-channel SPDT switch - connects to X common when B = high. |
| 12 (A1) | X0 | Normally closed terminal of X-channel SPDT switch - connects to X common when B = low. |
| 13 (A2) | X | Common terminal of X-channel SPDT switch - bidirectional I/O path routed to X0 or X1. |
| 14 (B2) | GND | Digital ground reference - must be tied to system ground; no analog ground reference required. |
| 15 (A3) | Y | Common terminal of Y-channel SPDT switch - bidirectional I/O path routed to Y0 or Y1. |
| 16 (A4) | Y0 | Normally closed terminal of Y-channel SPDT switch - connects to Y common when A = low. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from GND to V+ - enables full dynamic range utilization in single-supply audio and sensor interfaces. |
| Guaranteed break-before-make | 2ns minimum dead time prevents momentary shorting during switching - critical for avoiding signal glitches in audio/video routing. |
| Low 1nA leakage current | Minimizes error in high-impedance circuits such as medical sensor front-ends and precision DAC/ADC buffers. |
| 16-pin TQFN-EP package | 3mm × 3mm footprint with exposed pad - reduces PCB area by >50% vs. SOIC while improving thermal dissipation. |
| 1.8V logic compatibility | Direct interface with low-voltage MCUs (e.g., ARM Cortex-M0+) without level-shifting circuitry - lowers BOM cost and layout complexity. |
Applications
| Audio Signal Routing | Portable Instrumentation |
|---|---|
Use Scenario: Switching between multiple microphone inputs or headphone outputs in smartphones and wireless earbuds. IC Role / Device Role / Timing Role: Quad SPDT analog switch providing isolated, low-distortion signal paths with <90ns switching for seamless audio source selection. Use Value: Enables compact, low-power audio subsystems with -87dB crosstalk and 0.02% THD+N at 20kHz - preserving fidelity across consumer-grade codecs. | Use Scenario: Multiplexing sensor outputs (e.g., thermocouples, strain gauges) into a single ADC channel in handheld test equipment. IC Role / Device Role / Timing Role: Precision analog switch with ±20nA max leakage at +85°C and 35Ω on-resistance - minimizing offset and gain errors in DC-coupled measurement paths. Use Value: Delivers <0.1% measurement error over temperature without calibration - extending battery life via single-supply operation down to +2V. |
| Video Source Selection | Modem Interface Switching |
Use Scenario: Selecting between HDMI, CVBS, and USB-C DisplayPort alternate mode video signals in docking stations. IC Role / Device Role / Timing Role: High-isolation SPDT switch with -80dB off-isolation and rail-to-rail bandwidth supporting DC to 10MHz video signals. Use Value: Prevents ghosting and color bleeding between sources due to -87dB crosstalk - ensuring clean composite video output without external filtering. | Use Scenario: Isolating analog line drivers and receivers during modem power-down or mode transitions in DSL/cable modems. IC Role / Device Role / Timing Role: Fast-switching SPDT with guaranteed break-before-make timing - eliminating transient shorts during analog front-end reconfiguration. Use Value: Eliminates line fault events during hot reconfiguration, meeting ITU-T G.992.3 impulse noise immunity requirements. |
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 at +3V, no rail-to-rail support below VDD – 0.5V | Requires ≥+3V supply; unsuitable for +2.5V or lower battery rails where MAX4694ETE+T operates reliably | Select ADG734BRUZ only if supply ≥+3V and ultra-low RON is prioritized over wide voltage range. |
| TS5A3154DCUR | Quad SPDT, +1.65V to +5.5V, 0.9Ω RON at +3V, but 100nA leakage at +85°C vs. 20nA for MAX4694ETE+T | Higher leakage limits use in precision DC-coupled sensor muxing; lacks guaranteed break-before-make timing | Choose TS5A3154DCUR for ultra-low RON in non-precision AC-coupled apps; retain MAX4694ETE+T for medical or industrial sensing. |
Compared with ADG734BRUZ and TS5A3154DCUR, the MAX4694ETE+T uniquely supports true rail-to-rail operation down to +2V while maintaining sub-20nA leakage and guaranteed break-before-make - making it optimal for battery-powered precision analog routing where supply headroom and DC accuracy are constrained.
Availability
MAX4694ETE+T is available at Aetrix Electronics and suitable for audio signal routing, portable instrumentation, video source selection, and modem interface switching requiring stable component supply across industrial, medical, and consumer design cycles.
Supply support for MAX4694ETE+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 demanding industrial, automotive, and communications applications.
The MAX4691–MAX4694 family was engineered specifically for low-voltage, low-leakage analog switching in space- and power-constrained portable electronics - emphasizing rail-to-rail operation, guaranteed timing, and miniature packaging.
FAQ
What is the maximum supply voltage rating for the MAX4694ETE+T?
The MAX4694ETE+T has an absolute maximum supply voltage of +12V on V+, with recommended operating range from +2V to +11V. Exceeding +12V risks permanent damage due to internal ESD diode breakdown. The device is rated for continuous operation at +11V, and all electrical specifications - including 35Ω on-resistance and 90ns transition time - are guaranteed across this full range.
Does the MAX4694ETE+T support dual-supply operation with ±5V?
No, the MAX4694ETE+T does not support dual-supply operation. It is designed exclusively for single-supply use from +2V to +11V, with V− internally tied to GND. In contrast, the MAX4691/MAX4692/MAX4693 variants support ±2V to ±5.5V dual supplies. Attempting to apply negative voltage to the GND pin of MAX4694ETE+T violates absolute maximum ratings and may cause failure.
What is the function of pins A and B on the MAX4694ETE+T?
Pins A and B are digital control inputs that determine the state of all four SPDT switches: A controls W and Y channels, B controls X and Z channels. When A = low, W connects to W0 and Y connects to Y0; when A = high, W connects to W1 and Y connects to Y1. Similarly, B selects X0/X1 and Z0/Z1. There is no C or EN pin on MAX4694ETE+T - simplifying control logic versus the MAX4691–MAX4693 family.
How does the MAX4694ETE+T achieve rail-to-rail signal handling?
The MAX4694ETE+T achieves rail-to-rail signal handling through its CMOS transmission-gate architecture and level-translated gate drive, allowing analog signals from GND to V+ to pass unattenuated. This is confirmed in the datasheet's "Analog Signal Range" specification: VW, VX, VY, VZ = 0 to V+ under all conditions. No external components or biasing are needed - unlike older switch families requiring V− or external clamps.
Is the MAX4694ETE+T pin-compatible with other devices in the MAX4691–MAX4694 family?
No, the MAX4694ETE+T is not pin-compatible with MAX4691ETE+T, MAX4692ETE+T, or MAX4693ETE+T. Although all share the same 16-pin TQFN-EP package outline, pin functions differ significantly: MAX4694ETE+T replaces V− and EN with GND and removes address pin C, while reassigning pins for W/Y and X/Z control. Direct substitution would cause functional failure; PCB layout must match the specific variant's pin description table.
MAX4694ETE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 70Ohm
- Channel-to-Channel Matching (ΔRon):
- 2Ohm
- Voltage - Supply, Single (V+):
- 2.7V ~ 11V
- Voltage - Supply, Dual (V±):
- ±2V ~ 5.5V
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- 0.1pC
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -75dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN (4x4)
MAX4694ETE+T FAQ
1.How can I place an order for MAX4694ETE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4694ETE+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 MAX4694ETE+T reliable?
The price and inventory of MAX4694ETE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4694ETE+T is usually 5 days.
3.What payment methods are accepted for MAX4694ETE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4694ETE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4694ETE+T?
MAX4694ETE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4694ETE+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 MAX4694ETE+T?
For technical support, including MAX4694ETE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4694ETE+T requirements.
6.How does Aetrix verify that MAX4694ETE+T is sourced from the original manufacturer or authorized distributors?
All MAX4694ETE+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 MAX4694ETE+T meets industry standards.
7.What is the process for return or replacement of MAX4694ETE+T?
All MAX4694ETE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4694ETE+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 MAX4694ETE+T part is unused and in its original packaging.
Return procedure for MAX4694ETE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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