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Analog Devices Inc./Maxim Integrated MAX4688EBT-T
- Part No.:
- MAX4688EBT-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 6-WFBGA, CSPBGA
- Datasheet:
-
MAX4688EBT-T.pdf
- Description:
- IC SW SPDT-NO/NCX1 2.5OHM 6UCSP
- Quantity:
- Payment:
- Shipping:
Inventory:29,750
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Product details
Overview
MAX4688EBT-T 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 selection in portable battery-operated equipment.
For engineers reviewing the MAX4688EBT-T datasheet, MAX4688EBT-T pinout, MAX4688EBT-T application, or MAX4688EBT-T equivalent, this page delivers verified electrical parameters, UCSP-6 package layout, SPDT functional behavior, leakage performance down to ±1nA, and real-world selection guidance against comparable low-voltage analog switches.
Technical Context
The MAX4688EBT-T implements complementary MOSFET-based SPDT switching with guaranteed break-before-make timing (≤2ns), enabling safe channel isolation during signal path reconfiguration. Its digital control input accepts 1.8V logic levels when powered from +2.7V to +3.3V, and supports rail-to-rail analog signals from GND to V+.
On-resistance flatness is limited to 1Ω max over the full signal range, and RON matching between NO and NC paths is specified at 0.4Ω max - critical for precision multiplexing and balanced signal routing in communications circuits and audio interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.8V to +5.5V single supply - enables direct integration into 1.8V/2.5V/3.3V systems without level-shifting. |
| Max On-Resistance (RON) | 2.5Ω at +3V - ensures minimal voltage drop and signal attenuation in low-level analog paths. |
| RON Matching | 0.4Ω max between NO and NC channels - preserves signal symmetry in differential or dual-path applications. |
| Turn-On / Turn-Off Time | 30ns / 12ns max - supports high-speed signal routing in MP3 players and PCMCIA card switching. |
| Off-Isolation | −90dB at 100kHz - suppresses crosstalk between inactive and active signal paths in audio/video routing. |
| Charge Injection | 40pC max - limits transient glitches during switching in precision sensor or DAC output multiplexing. |
| Logic Compatibility | 1.8V logic inputs with VIH = 1.4V, VIL = 0.5V - interoperable with modern low-voltage microcontrollers and FPGAs. |
Pinout & Package
MAX4688EBT-T is housed in a 6-bump chip-scale package (UCSP-6) measuring 1.50mm × 1.02mm with 0.5mm bump pitch. The package uses wafer-level packaging technology and requires JEDEC-compliant reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| B1 | V+ | Positive supply input - must be applied before analog signals to prevent latch-up or ESD damage. |
| B2 | IN | Digital control input - active-high logic controls SPDT state; compatible with 1.8V–5.5V logic swing. |
| B3 | GND | Analog/digital ground reference - shared return for supply and signal paths; requires low-impedance PCB connection. |
| A1 | NO | Normally open analog terminal - connects to COM only when IN = high; used for primary signal path selection. |
| A2 | I.C. | Internally connected bump - not externally accessible; no PCB trace or solder pad required. |
| A3 | COM | Common analog terminal - bidirectional I/O node; routes signal to either NO or NC depending on IN state. |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Guaranteed ≤2ns interval prevents momentary shorting between NO and NC paths during transition - essential for relay replacement and power routing. |
| Rail-to-rail analog signal handling | Supports signals from GND to V+ across full temperature range - eliminates clipping in audio, video, and sensor front-ends. |
| Low off-leakage current | ±1nA max at +25°C - maintains signal integrity in high-impedance circuits like battery monitoring or medical sensor interfaces. |
| High off-isolation & low crosstalk | −90dB off-isolation and −95dB crosstalk at 100kHz - enables clean multi-channel audio routing without audible artifacts. |
| Ultra-small UCSP-6 footprint | 1.50mm × 1.02mm area - reduces PCB space by >70% vs. comparable SC70 or SOT-23 packages, ideal for cellular phones and wearables. |
Applications
| Audio Signal Routing | Power Path Selection |
|---|---|
Use Scenario: Switching between stereo headphone outputs and speaker amplifiers in portable media players. IC Role / Device Role / Timing Role: SPDT analog switch providing isolated, low-distortion signal path selection under microcontroller control. Use Value: 2.5Ω RON and 0.06% THD preserve audio fidelity; break-before-make prevents pop/click transients during switching. |
Use Scenario: Selecting between main battery and backup coin-cell power in handheld diagnostic devices. IC Role / Device Role / Timing Role: Low-leakage SPDT switch managing dual-supply redundancy with controlled transition timing. Use Value: ±1nA off-leakage minimizes standby current drain; 1.8V logic compatibility enables direct MCU GPIO control without level shifters. |
| Communications Circuit Multiplexing | Relay Replacement in IoT Sensors |
Use Scenario: Routing RS-232/RS-485 interface lines to multiple sensor nodes in industrial gateways. IC Role / Device Role / Timing Role: Bidirectional analog switch enabling flexible serial line assignment with minimal insertion loss. Use Value: 200MHz bandwidth and −90dB off-isolation ensure signal integrity up to 10Mbps; rail-to-rail operation supports full logic swing. |
Use Scenario: Replacing electromechanical relays in battery-powered environmental sensors for HVAC control. IC Role / Device Role / Timing Role: Solid-state SPDT switch delivering silent, bounce-free switching with µA-level quiescent current. Use Value: 30ns switching speed enables rapid sensor calibration cycles; UCSP-6 size allows integration into compact sensor modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TMUX1574DSGR | 4.5Ω max RON at 3V; no guaranteed break-before-make; 1.2mm × 1.2mm DSG package. | Higher RON increases insertion loss in audio paths; lacks BBM timing guarantee for safety-critical power routing. | Select when cost sensitivity outweighs need for sub-3Ω RON or BBM assurance. |
| ADG884BRMZ-REEL7 | 0.5Ω max RON at 3V; 10ns tON; MSOP-10 package (3mm × 3mm); no BBM specification. | Lower RON benefits precision instrumentation; larger footprint limits use in ultra-compact designs like cellular phones. | Select for highest signal fidelity where board space permits larger package. |
Compared with TMUX1574DSGR and ADG884BRMZ-REEL7, the MAX4688EBT-T uniquely combines guaranteed break-before-make timing, 2.5Ω RON, and 1.50mm × 1.02mm UCSP-6 size - making it optimal for space-constrained, safety-aware analog routing in portable electronics.
Availability
MAX4688EBT-T 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 UCSP-6 packaging.
Supply support for MAX4688EBT-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 industrial, automotive, and consumer applications - emphasizing high performance in miniature packages.
The MAX4686/MAX4687/MAX4688 family targets ultra-low-power, space-constrained portable systems requiring fast, low-RON, rail-to-rail analog switching - especially where board area and leakage current are critical constraints.
FAQ
What is the guaranteed break-before-make timing for MAX4688EBT-T?
The MAX4688EBT-T guarantees a break-before-make interval of ≤2ns at +25°C and V+ = +3V, as measured per Figure 3 in the official datasheet. This timing ensures no overlap between NO and NC conduction states during switching transitions, preventing short-circuits in power routing or signal multiplexing applications. The MAX4688EBT-T is the only member of the MAX4686/87/88 family with this guaranteed feature.
Does MAX4688EBT-T support rail-to-rail analog signals?
Yes, the MAX4688EBT-T supports rail-to-rail analog signals from GND to V+, with minimal RON variation across the full range - confirmed by the "On-Resistance vs. VCOM" curves (toc02–toc04) in the datasheet. At V+ = +3V, RON remains within 2.5Ω max from 0V to 3V, enabling distortion-free audio and video signal routing without external biasing. This capability is intrinsic to the MAX4688EBT-T's CMOS architecture.
What is the maximum allowable analog signal voltage on NO, NC, or COM pins of MAX4688EBT-T?
The absolute maximum analog signal voltage on NO, NC, or COM pins is (V+ + 0.3V), per the Absolute Maximum Ratings table. For example, with V+ = +3.3V, signals up to +3.6V are permitted. Signals exceeding V+ are clamped by internal diodes, but forward current must be limited to ≤20mA to avoid damage. This limit applies directly to the MAX4688EBT-T and is independent of logic input voltage.
Can MAX4688EBT-T be driven by 1.8V logic while operating from a 3.3V supply?
Yes, the MAX4688EBT-T accepts 1.8V logic inputs when powered from +2.7V to +3.3V, with VIH = +1.4V (min) and VIL = +0.5V (max) specified over temperature. This allows direct interfacing with 1.8V microcontrollers without level shifters. The logic threshold remains stable across V+ variations, as shown in Figure toc05 - a key design feature of the MAX4688EBT-T.
What is the thermal limitation for reflow soldering of MAX4688EBT-T's UCSP-6 package?
The MAX4688EBT-T UCSP-6 package must be soldered using JEDEC J-STD-020A-compliant reflow profiles only, with peak temperature ≤+235°C and mandatory preheating. Hand soldering and wave soldering are explicitly prohibited per the datasheet. Exceeding these thermal limits risks delamination or bump fracture - a constraint specific to the MAX4688EBT-T's wafer-level construction and not applicable to leaded packages.
MAX4688EBT-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Switch Circuit:
- SPDT - NO/NC
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 2.5Ohm
- Channel-to-Channel Matching (ΔRon):
- 300mOhm
- Voltage - Supply, Single (V+):
- 1.8V ~ 5.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 30ns, 12ns
- -3db Bandwidth:
- 200MHz
- Charge Injection:
- 40pC
- Channel Capacitance (CS(off), CD(off)):
- 12pF, 12pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -95dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-UCSP (1.57x1.05)
MAX4688EBT-T FAQ
1.How can I place an order for MAX4688EBT-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4688EBT-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 MAX4688EBT-T reliable?
The price and inventory of MAX4688EBT-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4688EBT-T is usually 5 days.
3.What payment methods are accepted for MAX4688EBT-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4688EBT-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4688EBT-T?
MAX4688EBT-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4688EBT-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 MAX4688EBT-T?
For technical support, including MAX4688EBT-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4688EBT-T requirements.
6.How does Aetrix verify that MAX4688EBT-T is sourced from the original manufacturer or authorized distributors?
All MAX4688EBT-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 MAX4688EBT-T meets industry standards.
7.What is the process for return or replacement of MAX4688EBT-T?
All MAX4688EBT-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4688EBT-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 MAX4688EBT-T part is unused and in its original packaging.
Return procedure for MAX4688EBT-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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