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Analog Devices Inc./Maxim Integrated MAX4688CPA
- Part No.:
- MAX4688CPA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX4688CPA.pdf
- Description:
- 2.5 OHM, LOW VOLTAGE, SPDT ANALO
- Quantity:
- Payment:
- Shipping:
Inventory:422
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Product details
Overview
MAX4688CPA from Maxim Integrated is a single-pole/double-throw (SPDT) analog switch with break-before-make switching action, 2.5Ω max on-resistance at +3V supply, 30ns max turn-on time, and rail-to-rail signal handling - used for audio/video routing and power path control in portable battery-operated devices.
For engineers reviewing the MAX4688CPA datasheet, MAX4688CPA pinout, MAX4688CPA application, or MAX4688CPA equivalent, this page delivers verified electrical parameters, UCSP-6 package layout, SPDT functional behavior, leakage performance down to ±0.5nA, and real-world selection guidance against comparable low-voltage analog switches.
Technical Context
The MAX4688CPA implements complementary MOSFET-based SPDT switching with guaranteed break-before-make timing (≤2ns), preventing momentary shorting between NO and NC paths during state transitions. Its digital control input accepts 1.8V logic levels when powered from +2.7V to +3.3V, enabling direct interfacing with low-voltage microcontrollers.
Signal integrity is maintained via 12pF off-capacitance per channel, -95dB crosstalk at 100kHz, and 200MHz on-channel bandwidth - all while supporting bidirectional analog signals from GND to V+ across the full operating temperature range (-40°C to +85°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 2.5Ω max at +3V supply - ensures minimal voltage drop and signal attenuation in low-power audio and sensor signal paths. |
| RON Matching | 0.4Ω max between NO and NC channels - critical for balanced differential switching and precision multiplexing. |
| Break-Before-Make Time | 2ns max - eliminates signal shorting during channel switching in relay-replacement and power-routing applications. |
| Off-Isolation | -90dB at 100kHz - suppresses unwanted coupling between inactive and active signal paths in communications circuits. |
| Crosstalk | -95dB at 100kHz - preserves channel separation in multi-source audio/video routing systems. |
| Supply Range | +1.8V to +5.5V single supply - supports operation directly from Li-ion batteries or regulated 3.3V/5V rails without level-shifting. |
| Logic Compatibility | 1.8V logic input threshold - enables direct drive from modern ultra-low-voltage MCUs without external translators. |
Pinout & Package
MAX4688CPA uses a 6-bump chip-scale package (UCSP™) measuring 1.50mm × 1.02mm with 0.5mm bump pitch. The package is lead-free and RoHS-compliant, optimized for high-density portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply voltage input | Accepts +1.8V to +5.5V; powers internal switch FETs and logic; must be applied before analog signals. |
| IN | Digital control input | Active-high logic input; drives internal gate drivers; compatible with 1.4V VIH and 0.5V VIL thresholds. |
| GND | Ground reference | Return path for supply current and analog signal reference; requires low-impedance connection. |
| COM | Analog common terminal | Bidirectional signal port connected to either NO or NC depending on IN state; handles rail-to-rail signals. |
| NO | Normally open analog terminal | Connected to COM only when IN = high; isolated otherwise; used for default-off signal paths. |
| NC | Normally closed analog terminal | Connected to COM only when IN = low; isolated otherwise; enables fail-safe or default-on routing. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail® Signal Handling | Supports analog signals from GND to V+ without clipping - essential for full-swing audio and sensor interfaces. |
| Guaranteed Break-Before-Make | Ensures no overlap between NO and NC conduction - prevents short-circuits in power routing and relay replacement. |
| Ultra-Low Leakage Current | ±0.5nA max at +25°C - minimizes DC error in high-impedance sensor and medical monitoring circuits. |
| Fast Switching Speed | tON = 30ns max, tOFF = 12ns max - enables high-speed multiplexing in data acquisition and communication systems. |
| Low On-Capacitance | 35pF typical - reduces loading on high-frequency sources and preserves signal rise/fall times. |
Applications
| Audio Signal Routing | Power Path Selection |
|---|---|
|
Use Scenario: Selecting between multiple audio sources (e.g., headset, speaker, line-out) in MP3 players and smartphones. IC Role / Device Role / Timing Role: SPDT analog switch routing bidirectional AC-coupled audio signals with minimal distortion and crosstalk. Use Value: -95dB crosstalk and 0.06% THD ensure clean channel separation and fidelity in consumer audio systems. |
Use Scenario: Dynamically selecting between primary and backup power sources in battery-backed embedded systems. IC Role / Device Role / Timing Role: Low-RON SPDT switch controlling power delivery path with break-before-make guarantee. Use Value: 2.5Ω RON and 2ns BBM prevent voltage droop and supply shorting during source handover. |
| Relay Replacement | Communications Circuit Switching |
|
Use Scenario: Replacing electromechanical relays in industrial I/O modules and test equipment where size and reliability are critical. IC Role / Device Role / Timing Role: Solid-state SPDT switch providing NC/NO functionality with zero bounce and infinite cycle life. Use Value: 100mA continuous current rating and -40°C to +85°C operation enable robust replacement in harsh environments. |
Use Scenario: Multiplexing RF front-end signals or baseband paths in cellular phone transceivers and PCMCIA cards. IC Role / Device Role / Timing Role: High-bandwidth analog switch routing sensitive communication signals with minimal insertion loss. Use Value: 200MHz on-channel bandwidth and -90dB off-isolation maintain signal integrity in multi-band radios. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS5A23157DCUR | RON = 0.9Ω max at 3V; no guaranteed break-before-make; 1.65V–5.5V supply; SOT-23-6 package. | Higher speed but lacks BBM timing guarantee - unsuitable for power-path switching where short prevention is mandatory. | Select when lowest RON and compact SOT-23 footprint are prioritized over BBM safety in signal routing only. |
| ADG719BRMZ | RON = 4Ω max at 3V; 1.8V logic compatible; -40°C to +125°C rating; MSOP-8 package. | Wider temperature range and larger package - better for industrial environments but higher RON impacts low-voltage signal accuracy. | Select when extended temperature operation and MSOP handling are required, accepting higher on-resistance trade-off. |
Compared with TS5A23157DCUR and ADG719BRMZ, the MAX4688CPA uniquely combines guaranteed break-before-make timing, ultra-low 2.5Ω RON at 3V, and UCSP-6 footprint - making it optimal for space-constrained, safety-critical power and audio routing where short prevention and signal fidelity are non-negotiable.
Availability
MAX4688CPA is available at Aetrix Electronics and suitable for MP3 players, cellular phones, and battery-operated equipment requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for MAX4688CPA 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 portable applications.
The MAX4686/MAX4687/MAX4688 family targets ultra-low-voltage, high-fidelity analog signal routing in space-constrained portable electronics - emphasizing rail-to-rail operation, sub-3Ω RON, and chip-scale packaging.
FAQ
What is the maximum supply voltage for MAX4688CPA?
The MAX4688CPA supports a single-supply voltage range from +1.8V to +5.5V. Absolute maximum rating is +6V on V+, but operation above +5.5V is not guaranteed and may cause permanent damage. For reliable long-term use, keep V+ within the specified 1.8V–5.5V range as defined in the electrical characteristics table.
Does MAX4688CPA support rail-to-rail analog signals?
Yes, the MAX4688CPA supports rail-to-rail analog signal handling - meaning signals from GND to V+ pass through the switch with minimal distortion or clipping. This capability is confirmed in the datasheet's "Analog Signal Range" specification (0V to V+) and verified by flat RON vs. VCOM curves across the full supply range.
Is break-before-make timing guaranteed for MAX4688CPA?
Yes, break-before-make (BBM) timing is guaranteed for MAX4688CPA with a maximum interval of 2ns. This is explicitly stated in the Electrical Characteristics table under "Break-Before-Make (MAX4688 only)" and validated in Figure 3 of the datasheet, ensuring no overlap between NO and NC conduction during switching.
What is the leakage current performance of MAX4688CPA at room temperature?
At TA = +25°C, the MAX4688CPA exhibits NO/NC off-leakage current of ±0.5nA max and COM on-leakage of ±0.5nA max. These values are specified in the Electrical Characteristics table under "NO, NC Off-Leakage Current" and "COM On-Leakage Current", and are critical for preserving accuracy in high-impedance sensor and medical monitoring applications.
Which package type does MAX4688CPA use, and what are its dimensions?
The MAX4688CPA uses a 6-bump UCSP™ (Ultra-Chip-Scale Package) with dimensions of 1.50mm × 1.02mm and 0.5mm bump pitch. This information is confirmed in the "Ordering Information" table and "Package Information" section, and the top mark "AAK" identifies the UCSP-6 variant in the MAX4688 family.
MAX4688CPA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- -
- Number of Circuits:
- -
- On-State Resistance (Max):
- -
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -
- Channel Capacitance (CS(off), CD(off)):
- -
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX4688CPA FAQ
1.How can I place an order for MAX4688CPA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4688CPA 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 MAX4688CPA reliable?
The price and inventory of MAX4688CPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4688CPA is usually 5 days.
3.What payment methods are accepted for MAX4688CPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4688CPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4688CPA?
MAX4688CPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4688CPA 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 MAX4688CPA?
For technical support, including MAX4688CPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4688CPA requirements.
6.How does Aetrix verify that MAX4688CPA is sourced from the original manufacturer or authorized distributors?
All MAX4688CPA 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 MAX4688CPA meets industry standards.
7.What is the process for return or replacement of MAX4688CPA?
All MAX4688CPA units undergo pre-shipment inspection (PSI). If there is an issue with MAX4688CPA, 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 MAX4688CPA part is unused and in its original packaging.
Return procedure for MAX4688CPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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