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Analog Devices Inc./Maxim Integrated MAX4643EUA+G24
- Part No.:
- MAX4643EUA+G24
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4643EUA+G24.pdf
- Description:
- IC SWITCH DUAL SPST 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,936
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Product details
Overview
MAX4643EUA+G24 from Maxim Integrated is a dual SPST analog switch IC with one normally open (NO) and one normally closed (NC) channel, operating from +1.8V to +5.5V single supply, delivering 4Ω max on-resistance at +5V, 0.6Ω RON matching, and <20ns switching times for audio/video routing and low-voltage data acquisition.
For engineers reviewing the MAX4643EUA+G24 datasheet, MAX4643EUA+G24 pinout, MAX4643EUA+G24 application, or MAX4643EUA+G24 equivalent, this page provides verified electrical specs, µMAX package details, break-before-make timing, leakage performance, and real-world signal-path design implications for battery-powered and rail-to-rail analog systems.
Technical Context
The MAX4643EUA+G24 implements complementary CMOS transmission-gate architecture with independent logic-controlled IN1/IN2 inputs driving separate NO1 and NC2 channels. Its break-before-make timing (7ns typ) prevents momentary shorting during state transitions, critical in multiplexer and sample-and-hold configurations.
It features rail-to-rail analog signal handling (0V to V+), internal ESD protection diodes on all analog pins, and guaranteed RON flatness (1Ω max) and matching (0.6Ω max) across temperature - enabling precision DC-coupled switching without gain error or channel imbalance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +1.8V to +5.5V single supply - supports Li-ion battery operation and 3.3V/5V system compatibility |
| On-Resistance (RON) | 4Ω max at +5V - ensures minimal insertion loss and voltage drop in signal paths up to ±20mA |
| RON Matching | 0.6Ω max between channels - maintains amplitude consistency in dual-channel routing applications |
| Switching Time (tON/tOFF) | 18ns/12ns typ - enables >25MHz digital control of analog signals with minimal propagation delay |
| Leakage Current | <0.35nA over –40°C to +85°C - preserves accuracy in high-impedance sensor interfaces and sample-and-hold hold capacitors |
| Off-Isolation | –80dB at 1MHz - suppresses crosstalk between active and inactive channels in multi-signal systems |
| Charge Injection | 2pC - limits voltage glitch on hold capacitors, reducing settling time in precision ADC front-ends |
Pinout & Package
MAX4643EUA+G24 is housed in an 8-pin µMAX package (3mm × 3mm, 0.8mm height), compatible with standard SOIC footprints but with reduced area and thermal resistance. Pin 1 is marked with a dot; device uses exposed pad for improved thermal performance (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5 | NO1, NC2 | Normally open and normally closed analog terminals - bidirectional; connect to signal source or load side depending on topology |
| 2, 6 | IN1, IN2 | CMOS-compatible logic inputs - drive internal transmission gates; TTL-level compatible only at +5V supply |
| 3, 7 | GND | Analog/digital ground reference - must be low-impedance; decoupling capacitor required at Pin 8 |
| 4 | COM1 | Common terminal for NO1 channel - forms SPST path with Pin 1 when IN1 = high |
| 8 | V+ | Positive supply input - requires 0.1µF ceramic bypass capacitor to GND for stable switching performance |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog range | Supports full 0V to V+ signal swing - eliminates level-shifting circuitry in portable audio and sensor interfaces |
| Break-before-make timing | 7ns typical - prevents transient short-circuit between COM1 and COM2 during channel switching in multiplexed systems |
| Low THD (0.018%) | Maintains signal fidelity in audio routing - avoids audible distortion in headphone amplifiers and line drivers |
| Guaranteed RON flatness | 1Ω max variation across signal range - ensures linear gain response in programmable gain stages and calibration paths |
| High off-isolation (–80dB) | Minimizes interference between adjacent signal paths - critical in multi-channel data acquisition and communications circuits |
Applications
| Battery-Powered Audio Routing | Low-Voltage Data Acquisition |
|---|---|
Use Scenario: Switching microphone inputs or headphone outputs in portable medical monitors and handheld test equipment. IC Role / Device Role / Timing Role: Dual SPST analog switch providing isolated signal path selection with sub-20ns transition for real-time audio monitoring. Use Value: 4Ω RON and rail-to-rail operation preserve SNR and dynamic range without external biasing or level shifters. | Use Scenario: Multiplexing sensor outputs (thermocouples, strain gauges) into a single ADC input in industrial IoT nodes. IC Role / Device Role / Timing Role: Precision analog switch enabling sequential sampling with <0.35nA leakage to prevent hold-capacitor drift. Use Value: Guaranteed RON matching (0.6Ω) ensures consistent channel gain, eliminating per-channel calibration overhead. |
| Sample-and-Hold Circuits | Communications Signal Path Control |
Use Scenario: Controlling acquisition window in precision ADC front-ends for power metering and energy monitoring ICs. IC Role / Device Role / Timing Role: Break-before-make switch isolating hold capacitor during sampling phase to avoid charge injection errors. Use Value: 2pC charge injection and 1Ω RON flatness minimize settling time and offset error in sub-16-bit systems. | Use Scenario: Selecting between RF front-end receive paths or antenna diversity inputs in narrowband wireless modules. IC Role / Device Role / Timing Role: Low-crosstalk (–97dB) analog switch managing baseband signal routing prior to modulation/demodulation. Use Value: –80dB off-isolation and 7pF off-capacitance maintain impedance integrity and minimize signal reflection at 1–10MHz bands. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4643EUA+ | No G24 suffix; same µMAX package, identical electrical specs, no tape-and-reel packaging | Same functional use; differs only in packaging format (tube vs. tape-and-reel) | Select MAX4643EUA+G24 for automated SMT assembly; choose MAX4643EUA+ for prototyping or low-volume hand soldering |
| ADG721BRMZ-REEL | 3.3V-only supply (1.8–3.6V), 4.5Ω RON, no break-before-make guarantee, 12ns tON | Suitable for 3.3V-only systems; lacks guaranteed BBM timing and 5V compatibility | Prefer MAX4643EUA+G24 when 5V operation, BBM timing, or mixed-supply system integration is required |
Compared with MAX4643EUA+ and ADG721BRMZ-REEL, the MAX4643EUA+G24 uniquely combines 1.8–5.5V operation, guaranteed break-before-make, and 0.6Ω RON matching - making it optimal for cross-voltage-domain signal routing where supply flexibility and channel coherence are critical.
Availability
MAX4643EUA+G24 is available at Aetrix Electronics and suitable for battery-operated equipment, audio/video signal routing, and low-voltage data-acquisition systems requiring stable component supply and long-term production continuity.
Supply support for MAX4643EUA+G24 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, medical, and communications applications.
The MAX464x family targets low-voltage, high-speed analog switching - optimized for portable instrumentation, sensor interfaces, and signal-path reconfiguration where rail-to-rail operation and nanosecond timing are essential.
FAQ
What is the maximum supply voltage rating for MAX4643EUA+G24?
The absolute maximum supply voltage for MAX4643EUA+G24 is +6V, but operational specification guarantees performance only up to +5.5V. Exceeding +5.5V risks violating the guaranteed RON, leakage, and timing parameters. The device is rated for continuous operation from +1.8V to +5.5V, with full parameter compliance across –40°C to +85°C ambient temperature.
Does MAX4643EUA+G24 support rail-to-rail analog signal operation?
Yes, MAX4643EUA+G24 supports true rail-to-rail analog signal operation - its analog pins (NO1, NC2, COM1, COM2) handle signals from 0V to V+ without clipping or distortion. This capability is explicitly guaranteed in the datasheet and enables direct interfacing with op-amps, ADCs, and sensors operating at the same supply rails, eliminating external level-shifting components.
What is the break-before-make timing specification for MAX4643EUA+G24?
The MAX4643EUA+G24 guarantees a break-before-make (BBM) time of 7ns typical and 10ns maximum over temperature. This timing ensures that the NC2 channel fully opens before NO1 closes - preventing momentary short-circuit between COM1 and COM2. BBM is intrinsic to the MAX4643 variant (not present in MAX4641/MAX4642) and is critical in multiplexer and signal-routing applications where channel isolation must be maintained during transitions.
Can MAX4643EUA+G24 operate from a 3.3V supply while maintaining full specifications?
Yes, MAX4643EUA+G24 operates fully specified from +2.7V to +3.3V. At +3V supply, RON is guaranteed ≤8Ω, RON matching ≤0.6Ω, and leakage remains <0.35nA. Switching times increase slightly (tON = 22ns typ), but all key AC and DC parameters remain within published limits - making it suitable for 3.3V embedded systems without performance compromise.
What is the thermal performance of the µMAX package used in MAX4643EUA+G24?
The 8-pin µMAX package of MAX4643EUA+G24 has a junction-to-ambient thermal resistance (θJA) of 220°C/W and a junction-to-board (θJB) of 120°C/W. With 362mW maximum power dissipation at +70°C ambient and 4.5mW/°C derating above that, the package supports reliable operation in compact, convection-cooled environments - typical in handheld and space-constrained industrial modules.
MAX4643EUA+G24 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX4643EUA+G24 FAQ
1.How can I place an order for MAX4643EUA+G24 through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4643EUA+G24 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 MAX4643EUA+G24 reliable?
The price and inventory of MAX4643EUA+G24 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4643EUA+G24 is usually 5 days.
3.What payment methods are accepted for MAX4643EUA+G24?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4643EUA+G24 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4643EUA+G24?
MAX4643EUA+G24 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4643EUA+G24 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 MAX4643EUA+G24?
For technical support, including MAX4643EUA+G24 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4643EUA+G24 requirements.
6.How does Aetrix verify that MAX4643EUA+G24 is sourced from the original manufacturer or authorized distributors?
All MAX4643EUA+G24 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 MAX4643EUA+G24 meets industry standards.
7.What is the process for return or replacement of MAX4643EUA+G24?
All MAX4643EUA+G24 units undergo pre-shipment inspection (PSI). If there is an issue with MAX4643EUA+G24, 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 MAX4643EUA+G24 part is unused and in its original packaging.
Return procedure for MAX4643EUA+G24:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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