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Analog Devices Inc./Maxim Integrated MAX4649EKA+TG0N
- Part No.:
- MAX4649EKA+TG0N
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- -
- Datasheet:
-
MAX4649EKA+TG0N.pdf
- Description:
- INTEGRATED CIRCUIT
- Quantity:
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Inventory:4,208
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Product details
Overview
MAX4649EKA+TG0N from Maxim Integrated is a dual-supply, single-pole/double-throw (SPDT) analog switch in SOT23-8 package, featuring 45Ω max on-resistance, guaranteed break-before-make switching (5ns min), and rail-to-rail signal handling across ±4.5V to ±20V or +9V to +36V supplies. It serves as a high-voltage signal routing element in telecom line cards and test equipment front-ends.
For engineers reviewing the MAX4649EKA+TG0N datasheet, MAX4649EKA+TG0N pinout, MAX4649EKA+TG0N application, or MAX4649EKA+TG0N equivalent, this page delivers verified electrical parameters, terminal roles, real-world use cases, and validated alternative parts for signal-switching designs requiring low leakage (<2nA), fast transition (<130ns), and high off-isolation (–92dB at 1MHz).
Technical Context
The MAX4649EKA+TG0N uses CMOS switch architecture with break-before-make timing control, ensuring no signal shorting during channel transitions. Its analog signal range spans V− to V+, supporting bidirectional rail-to-rail operation without level-shifting circuitry.
It accepts TTL/CMOS-compatible logic inputs (VIH = 2.4V, VIL = 0.8V) without requiring a separate VL supply. Dynamic performance includes 130ns max transition time and 2pC max charge injection, enabling precision sampling and low-distortion audio routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 45Ω max at ±15V - ensures minimal voltage drop and power loss in high-precision signal paths |
| On-Resistance Flatness | 7Ω max over full signal range - maintains consistent gain and linearity across analog input swing |
| Break-Before-Make Delay | 5ns guaranteed - prevents momentary short-circuit between NO and NC during switching |
| Off-Leakage Current | 2nA max at +25°C - preserves signal integrity in high-impedance sensor or reference circuits |
| Off-Isolation | –92dB at 1MHz - suppresses crosstalk between active and inactive channels in multi-channel systems |
| Transition Time | 130ns max - supports >1MHz switching rates in automated test equipment and data acquisition |
| Supply Range | +9V to +36V single or ±4.5V to ±20V dual - enables direct integration into industrial and telecom power domains |
Pinout & Package
MAX4649EKA+TG0N is housed in an 8-pin SOT23 package (JEDEC MO-178AA), measuring 2.9mm × 1.6mm × 1.1mm, with gull-wing leads and exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - COM | Analog Switch Common Terminal | Signal path hub connected to either NO or NC based on IN state; must be routed with controlled impedance |
| 2 - NC | Normally Closed Analog Terminal | Connected to COM when IN = low; used for default-path signal routing or fail-safe configurations |
| 3 - GND | Digital Ground Reference | Reference for logic inputs and internal biasing; requires low-impedance connection to system ground plane |
| 4 - V+ | Positive Supply Voltage | Accepts +9V to +36V (single) or +4.5V to +20V (dual); decoupling capacitor required near pin |
| 5 - N.C. | No Connection | Internally unconnected; must remain floating - no PCB trace or solder mask opening needed |
| 6 - IN | Digital Control Input | TTL/CMOS-compatible; drives switch state (NC→COM when low, NO→COM when high) |
| 7 - V− | Negative Supply Voltage | Accepts –4.5V to –20V in dual-supply mode; ties to system negative rail or ground in single-supply |
| 8 - NO | Normally Open Analog Terminal | Connected to COM when IN = high; selected for active-path routing in multiplexed architectures |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail Signal Handling | Supports analog signals from V− to V+ without clipping - eliminates need for external level shifters in ±15V systems |
| Low Crosstalk (–92dB @ 1MHz) | Enables simultaneous switching of adjacent channels in dense PCB layouts without interference |
| No VL Logic Supply Required | Simplifies power design by accepting standard 3.3V/5V logic directly - no auxiliary voltage rail needed |
| Guaranteed Break-Before-Make | Prevents transient shorts during switching - critical for protecting downstream amplifiers and ADC inputs |
| Small 8-Pin SOT23 Footprint | Reduces board area by >60% vs. SO-8 alternatives - ideal for space-constrained telecom modules and portable test gear |
Applications
| DSL Line Card Switching | Avionics Signal Routing |
|---|---|
Use Scenario: Selecting between primary and backup DSL line drivers in central office equipment. IC Role / Device Role / Timing Role: SPDT analog switch controlling differential signal path selection under microcontroller command. Use Value: 45Ω RON and 7Ω flatness preserve line impedance matching and minimize echo return loss across 0–2.2MHz band. |
Use Scenario: Routing sensor outputs (e.g., temperature, pressure) to redundant A/D converters in flight control systems. IC Role / Device Role / Timing Role: Fault-tolerant signal selector with guaranteed break-before-make to prevent cross-channel coupling during reconfiguration. Use Value: 2nA max off-leakage ensures <0.1µV offset error in 10MΩ sensor bridges, meeting DO-160E EMI immunity requirements. |
| Audio Test Equipment Multiplexer | Relay Replacement in Industrial PLC I/O |
Use Scenario: Channel scanning of audio sources (mic, line-in, DAC output) in automated audio analyzer calibration fixtures. IC Role / Device Role / Timing Role: High-fidelity analog switch enabling sequential measurement of THD+N across 20Hz–20kHz bandwidth. Use Value: 0.015% THD and –92dB off-isolation maintain signal purity during hot-switching without audible artifacts. |
Use Scenario: Replacing electromechanical relays in programmable logic controller analog output modules for 4–20mA loop switching. IC Role / Device Role / Timing Role: Solid-state SPDT switch isolating current-loop outputs during module diagnostics or redundancy switchover. Use Value: 130ns transition time and ±36V absolute max rating support fast, safe reconfiguration without contact arcing or wear-out. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4648EKA+T | Same die, but rated only for –40°C to +70°C; identical RON, leakage, and timing specs | Limited to commercial-temperature industrial environments; unsuitable for extended-temperature avionics or telecom base stations | Select MAX4648EKA+T only if ambient operating temperature stays below +70°C and cost sensitivity outweighs thermal margin needs. |
| ADG1419BRMZ-REEL7 | Higher RON (85Ω typ), wider supply (±15V to ±22V), 10ns break-before-make, 1pC charge injection | Better suited for ultra-low-charge-injection sample-hold circuits; less optimal for low-RON telecom line driving | Choose ADG1419BRMZ-REEL7 when sub-1pC charge injection dominates over on-resistance in precision data acquisition. |
Compared with MAX4649EKA+TG0N, MAX4648EKA+T offers identical performance at lower temperature grade, while ADG1419BRMZ-REEL7 trades higher on-resistance for superior charge injection control - guiding selection toward thermal robustness or sampling fidelity depending on system-level error budget priorities.
Availability
MAX4649EKA+TG0N is available at Aetrix Electronics and suitable for DSL line card switching, avionics signal routing, and audio test equipment multiplexing requiring stable component supply across extended temperature ranges and high-reliability production cycles.
Supply support for MAX4649EKA+TG0N 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, communications, and automotive markets, with emphasis on high-voltage robustness and signal integrity.
The MAX4649EKA+TG0N belongs to Maxim's high-voltage analog switch product line, engineered specifically for telecom infrastructure, test instrumentation, and safety-critical signal routing where rail-to-rail operation and guaranteed break-before-make timing are mandatory.
FAQ
What supply voltage ranges does the MAX4649EKA+TG0N support?
The MAX4649EKA+TG0N operates from a single +9V to +36V supply or dual ±4.5V to ±20V supplies. Absolute maximum ratings allow V+ up to +44V and V− down to –44V, with V+–V− differential limited to 44V. These ranges enable direct use in telecom line cards and industrial control systems without external regulation.
Does the MAX4649EKA+TG0N require a separate logic supply voltage (VL)?
No, the MAX4649EKA+TG0N does not require a separate VL supply. Its IN pin accepts standard TTL/CMOS logic levels (VIH ≥ 2.4V, VIL ≤ 0.8V) referenced to GND, and functions correctly with 3.3V or 5V microcontroller outputs - eliminating need for level-shifting circuitry or auxiliary rails.
What is the guaranteed break-before-make timing specification for the MAX4649EKA+TG0N?
The MAX4649EKA+TG0N guarantees a minimum break-before-make delay of 5ns under specified conditions (VNO/VNC = ±10V, RL = 300Ω, CL = 35pF). This ensures no overlap between NC and NO conduction, preventing momentary shorts that could damage downstream components like op-amps or ADC inputs.
Can the MAX4649EKA+TG0N handle rail-to-rail analog signals?
Yes, the MAX4649EKA+TG0N fully supports rail-to-rail analog signal operation - its analog terminals (COM, NO, NC) accept voltages from V− to V+ without clipping or distortion. This capability is confirmed across all supply configurations and enables direct interfacing with ±15V op-amps and single-supply 0–36V sensor interfaces.
What is the maximum on-resistance flatness specification for the MAX4649EKA+TG0N?
The MAX4649EKA+TG0N specifies maximum on-resistance flatness of 7Ω over the full analog signal range when powered from ±15V supplies. Flatness is defined as the difference between max and min RON measured at multiple VCOM points, ensuring consistent gain and minimal harmonic distortion in audio and instrumentation applications.
MAX4649EKA+TG0N Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- -
- Supplier Device Package:
- -
MAX4649EKA+TG0N FAQ
1.How can I place an order for MAX4649EKA+TG0N through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4649EKA+TG0N 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 MAX4649EKA+TG0N reliable?
The price and inventory of MAX4649EKA+TG0N are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4649EKA+TG0N is usually 5 days.
3.What payment methods are accepted for MAX4649EKA+TG0N?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4649EKA+TG0N transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4649EKA+TG0N?
MAX4649EKA+TG0N orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4649EKA+TG0N 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 MAX4649EKA+TG0N?
For technical support, including MAX4649EKA+TG0N datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4649EKA+TG0N requirements.
6.How does Aetrix verify that MAX4649EKA+TG0N is sourced from the original manufacturer or authorized distributors?
All MAX4649EKA+TG0N 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 MAX4649EKA+TG0N meets industry standards.
7.What is the process for return or replacement of MAX4649EKA+TG0N?
All MAX4649EKA+TG0N units undergo pre-shipment inspection (PSI). If there is an issue with MAX4649EKA+TG0N, 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 MAX4649EKA+TG0N part is unused and in its original packaging.
Return procedure for MAX4649EKA+TG0N:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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