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Analog Devices Inc./Maxim Integrated MAX4694ETE+
- Part No.:
- MAX4694ETE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX4694ETE+.pdf
- Description:
- IC SWITCH SPDT X 4 70OHM 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,022
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Product details
Overview
MAX4694ETE+ 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, 1nA max leakage current at +85°C, 35Ω max on-resistance at +5V, and guaranteed break-before-make switching-used in audio/video routing and battery-powered cellular phone front-end signal selection.
For engineers reviewing the MAX4694ETE+ datasheet, MAX4694ETE+ pinout, MAX4694ETE+ application, or MAX4694ETE+ equivalent, key selection criteria include single-supply operation range (+2V to +11V), SPDT channel count (4), on-resistance flatness (≤8Ω at +5V), off-isolation (−80dB at 100kHz), and TQFN-EP package compatibility with high-density portable PCB layouts.
Technical Context
The MAX4694ETE+ implements four independent bidirectional SPDT switches controlled by two digital inputs (A for W/Y channels, B for X/Z channels), with no enable (EN) or address (C) pins-unlike MAX4691–MAX4693. It supports only single-supply operation (V− tied to GND), eliminating dual-rail biasing complexity.
Each switch guarantees break-before-make timing (≤2ns), low charge injection (0.2pC typical at +5V), and rail-to-rail analog signal range (0V to V+). Dynamic performance includes 45ns typical turn-on time and 100ns typical turn-off time at +5V with 300Ω/35pF load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2V to +11V single supply; V− must be connected to GND-no dual-supply support. |
| On-Resistance (RON) | 35Ω max at +5V; ensures minimal signal attenuation in audio and sensor paths. |
| On-Resistance Flatness | 8Ω max over full signal range at +5V; maintains consistent gain across input voltage swing. |
| Off-Isolation | −80dB at 100kHz; prevents crosstalk between inactive SPDT paths in multi-channel routing. |
| Leakage Current | ±20nA max at +85°C; preserves accuracy in high-impedance sensor or precision reference switching. |
| Switching Speed | tON = 45ns / tOFF = 100ns typical at +5V; supports fast channel reconfiguration in modem and RF front-end control. |
| Logic Compatibility | 1.8V logic-compatible at +3V supply; enables direct interface with modern low-voltage microcontrollers. |
Pinout & Package
MAX4694ETE+ uses a 16-pin TQFN-EP (3mm × 3mm, 0.5mm pitch) with exposed pad (EP) connected to V+. Pin functions are validated per Maxim's official datasheet revision 6 (2012).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (B4) | Y1 | Normally open terminal of Y-channel SPDT switch-connects to common Y when B = 1. |
| 3 (C4) | W1 | Normally open terminal of W-channel SPDT switch-connects to common W when A = 1. |
| 4 (D4) | W0 | Normally closed terminal of W-channel SPDT switch-connects to common W when A = 0. |
| 5 (D3) | W | Common terminal of W-channel SPDT switch-bidirectional I/O path for W0/W1 selection. |
| 6 (C3) | V+ | Positive supply for analog switches and internal logic; powers ESD diodes and gate drivers. |
| 7 (D2) | Z | Common terminal of Z-channel SPDT switch-bidirectional I/O path for Z0/Z1 selection. |
| 8 (D1) | Z0 | Normally closed terminal of Z-channel SPDT switch-connects to common Z when B = 0. |
| 9 (C1) | Z1 | Normally open terminal of Z-channel SPDT switch-connects to common Z when B = 1. |
| 10 (C2) | B | Digital control input for X and Z SPDT channels-low selects NC, high selects NO. |
| 11 (B1) | X1 | Normally open terminal of X-channel SPDT switch-connects to common X when B = 1. |
| 12 (A1) | X0 | Normally closed terminal of X-channel SPDT switch-connects to common X when B = 0. |
| 13 (A2) | X | Common terminal of X-channel SPDT switch-bidirectional I/O path for X0/X1 selection. |
| 14 (B2) | GND | Digital ground reference; required for logic-level translation and internal biasing. |
| 15 (A3) | Y | Common terminal of Y-channel SPDT switch-bidirectional I/O path for Y0/Y1 selection. |
| 16 (A4) | Y0 | Normally closed terminal of Y-channel SPDT switch-connects to common Y when A = 0. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports full 0V to V+ input/output swing-enables direct interfacing with ADCs, DACs, and op-amps without level-shifting. |
| Guaranteed break-before-make | ≤2ns minimum dead time prevents momentary short-circuit during channel switching in power-sensitive audio paths. |
| Low 1nA leakage at +85°C | Minimizes error in high-impedance sensor multiplexing (e.g., thermocouples, pH electrodes) over industrial temperature range. |
| 1.8V logic-compatible inputs | Direct interface with 1.8V/3.3V microcontrollers eliminates external level shifters in portable designs. |
| Quad SPDT architecture with shared controls | A/B inputs independently select W/Y and X/Z pairs-reduces GPIO count vs. discrete SPDTs in compact RF front-end modules. |
Applications
| Audio Signal Routing | Cellular Phone Front-End |
|---|---|
Use Scenario: Switching between multiple microphone inputs and speaker outputs in a smartphone audio subsystem. IC Role / Device Role / Timing Role: Quad SPDT analog switch selecting bidirectional audio paths with rail-to-rail swing and <100ns switching. Use Value: Enables dynamic reconfiguration of audio I/O without signal clipping or cross-talk (>80dB isolation at 100kHz). | Use Scenario: Routing RF signals between antenna diversity paths and transceiver chains in LTE/5G handsets. IC Role / Device Role / Timing Role: Low-RON SPDT switch managing antenna switching and band selection under baseband processor control. Use Value: 35Ω max RON and −80dB off-isolation preserve signal integrity and minimize insertion loss in sub-6GHz RF paths. |
| Battery-Operated Instrumentation | Modem Analog Interface |
Use Scenario: Multiplexing sensor outputs (e.g., temperature, humidity) into a low-power ADC in portable test equipment. IC Role / Device Role / Timing Role: Low-leakage (±20nA max) analog switch enabling accurate DC-coupled measurements at extended temperature range. Use Value: Sub-20nA leakage ensures <0.1% measurement error in 10MΩ sensor bridges at +85°C. | Use Scenario: Selecting between line-in, headset, and speaker-out paths in DSL/cable modems with integrated voice functionality. IC Role / Device Role / Timing Role: Fast-switching (45ns tON) SPDT managing analog audio interface under real-time VoIP protocol timing constraints. Use Value: 90ns transition time meets ITU-T G.165 echo cancellation latency requirements for voice call quality. |
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 |
|---|---|---|---|
| MAX4694EBE+T | Same die, 16-bump UCSP (2mm × 2mm); no exposed pad; requires specialized assembly process. | Ultra-compact PCB area (<4mm²); suited for space-constrained wearables where thermal dissipation is secondary. | Select for minimal footprint; verify board assembly capability for UCSP reliability per Maxim AN6322. |
| ADG732BRUZ | 32-channel SPDT, 3.3V-only supply, 4Ω RON, but larger 32-pin TSSOP; no rail-to-rail operation below 2.5V. | High-channel-count systems (e.g., automated test equipment) requiring >4 SPDTs per IC; not suitable for single-supply <3V operation. | Select only if channel count >4 is required; avoid for battery-powered <3V designs due to supply limitation. |
Compared with MAX4694EBE+T, the MAX4694ETE+ offers superior thermal performance via EP connection and standard TQFN reflow compatibility; versus ADG732BRUZ, it provides lower supply voltage flexibility and smaller footprint but fewer channels-ideal for portable quad-path routing.
Availability
MAX4694ETE+ is available at Aetrix Electronics and suitable for audio signal routing, cellular phone front-end design, and battery-operated instrumentation requiring stable component supply and long-term production continuity.
Supply support for MAX4694ETE+ 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 communications markets.
The MAX4691–MAX4694 family delivers low-voltage, low-leakage analog switching solutions optimized for portable and battery-powered systems demanding rail-to-rail operation and minimal PCB area.
FAQ
What is the maximum supply voltage rating for MAX4694ETE+?
The MAX4694ETE+ has an absolute maximum V+ rating of +12V. Its operational single-supply range is +2V to +11V. Exceeding +12V risks permanent damage due to internal ESD diode breakdown. Always observe proper power sequencing: apply V+ before logic inputs and analog signals, and ensure V− is tied to GND for safe single-supply use of MAX4694ETE+.
Does MAX4694ETE+ support dual-supply operation like MAX4693?
No, MAX4694ETE+ does not support dual-supply operation. Unlike MAX4691–MAX4693, it lacks a V− pin and is designed exclusively for single-supply use (V− = GND). The datasheet explicitly states "The MAX4694 operates from a single +2V to +11V supply." Attempting to apply negative voltage to the GND pin of MAX4694ETE+ violates absolute maximum ratings and may cause failure.
How many digital control inputs does MAX4694ETE+ require?
MAX4694ETE+ requires exactly two digital control inputs: pin A (controls W and Y SPDTs) and pin B (controls X and Z SPDTs). There is no EN, C, or additional address pin-confirmed by the truth table and pin description in the datasheet. This 2-input scheme reduces GPIO usage compared to discrete SPDTs or full-featured muxes, making MAX4694ETE+ ideal for resource-constrained microcontroller interfaces.
What is the guaranteed on-resistance match between channels for MAX4694ETE+ at +5V?
At +5V supply, MAX4694ETE+ guarantees ≤5Ω on-resistance match (∆RON) between any two SPDT channels over −40°C to +85°C. This specification ensures consistent gain and minimal channel-to-channel imbalance in differential or multi-path signal routing applications, directly supporting precision audio and sensor multiplexing where matching affects common-mode rejection and measurement accuracy.
Can MAX4694ETE+ be used in audio applications requiring low THD?
Yes, MAX4694ETE+ achieves 0.02% THD at 20Hz–20kHz with 5Vp-p signal and 600Ω load under ±5V dual-supply conditions-but note that MAX4694ETE+ is single-supply only. Under its valid +5V single-supply condition, THD is not characterized in the datasheet. For low-THD audio, confirm performance empirically at target signal levels and loads, as THD rises with increasing RON and decreasing supply voltage in CMOS switches like MAX4694ETE+.
MAX4694ETE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- 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+ FAQ
1.How can I place an order for MAX4694ETE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4694ETE+ 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+ reliable?
The price and inventory of MAX4694ETE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4694ETE+ is usually 5 days.
3.What payment methods are accepted for MAX4694ETE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4694ETE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4694ETE+?
MAX4694ETE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4694ETE+ 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+?
For technical support, including MAX4694ETE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4694ETE+ requirements.
6.How does Aetrix verify that MAX4694ETE+ is sourced from the original manufacturer or authorized distributors?
All MAX4694ETE+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX4694ETE+?
All MAX4694ETE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4694ETE+, 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+ part is unused and in its original packaging.
Return procedure for MAX4694ETE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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