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Analog Devices Inc./Maxim Integrated MAX4680CWE+T
- Part No.:
- MAX4680CWE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX4680CWE+T.pdf
- Description:
- IC SW SPST-NCX2 1.25OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,270
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Product details
Overview
MAX4680CWE+T from Maxim Integrated is a dual SPST CMOS analog switch with two normally closed (NC) channels, designed for rail-to-rail signal routing in precision analog systems. It delivers 1.25Ω max on-resistance, 0.3Ω max RON match between channels, and 5nA max off-leakage at +85°C, enabling low-distortion switching in data acquisition and automatic test equipment.
For engineers reviewing the MAX4680CWE+T datasheet, MAX4680CWE+T pinout, MAX4680CWE+T application, or MAX4680CWE+T equivalent, key selection criteria include its dual NC topology, ±4.5V to ±20V dual-supply or +4.5V to +36V single-supply operation, TTL/CMOS-compatible logic inputs via dedicated VL pin, and guaranteed break-before-make timing only in MAX4700-not applicable to MAX4680CWE+T.
Technical Context
The MAX4680CWE+T implements a dual-channel, normally closed analog switch architecture using high-voltage CMOS process technology. Each channel features matched on-resistance (≤0.3Ω difference) and flat on-resistance (≤0.3Ω variation) over the full ±10V signal range, supporting distortion-sensitive applications like sample-and-hold circuits and communication system signal routing.
It operates with independent analog supplies (V+, V−) and a separate logic supply (VL), ensuring consistent switching behavior across wide supply ranges (+4.5V to +36V single or ±4.5V to ±20V dual). Input control logic is referenced to VL, not V+, enabling seamless interfacing with 3.3V or 5V microcontrollers while biasing analog rails at higher voltages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 1.25Ω max - enables <1mV voltage drop at 10mA, critical for precision sensor signal paths |
| RON Match | 0.3Ω max - ensures ≤0.3Ω difference between CH1 and CH2, vital for differential or matched-path designs |
| RON Flatness | 0.3Ω max - maintains stable resistance across ±10V input range, minimizing harmonic distortion |
| Off-Leakage Current | 5nA max at +85°C - preserves accuracy in high-impedance sampling nodes (e.g., >100MΩ hold capacitors) |
| Supply Range | +4.5V to +36V single or ±4.5V to ±20V dual - supports industrial, test, and telecom rails without level-shifting |
| Logic Compatibility | TTL/CMOS via VL pin - allows direct connection to 3.3V/5V controllers regardless of analog supply voltage |
| ESD Protection | >2kV per Method 3015.7 - enhances robustness in handling and board-level ESD events |
Pinout & Package
MAX4680CWE+T is housed in a 16-pin Wide SO (SOIC-W) package, 7.5mm body width, 1.27mm pitch, RoHS-compliant and tape-and-reel packaged (T suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 6, 8, 10, 15 | N.C. | No internal connection; tie to GND or low-impedance node to improve isolation performance |
| 2, 7 | GND | Analog and digital ground reference; must be low-impedance return path for leakage and switching currents |
| 4 | V− | Negative analog supply input; connect to GND for single-supply operation |
| 5 | COM1 | Channel 1 common terminal - bidirectional analog path shared by NC1 and signal path |
| 9, 16 | NC1, NC2 | Normally closed terminals - conduct to COM when IN = logic low; open when IN = logic high |
| 11, 14 | COM2, COM1 | Channel 2 and Channel 1 common terminals - primary analog I/O points for each SPST switch |
| 12 | VL | Dedicated logic supply input - sets input threshold (0.8V/2.4V) independent of V+/V− |
| 13 | V+ | Positive analog supply input - defines upper rail for rail-to-rail signal handling |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-Rail Signal Handling | Supports analog signals from V− to V+ (e.g., −15V to +15V), eliminating clipping in bipolar instrumentation front-ends |
| Guaranteed RON Match | ≤0.3Ω difference between channels - enables precise gain-matching in dual-path filters or ADC multiplexers |
| Low Charge Injection | ±60pC max - minimizes voltage glitch on hold capacitors, reducing settling time in sample-and-hold stages |
| High Off-Isolation | −53dB min at 1MHz - suppresses crosstalk between active and inactive channels in dense signal routing |
| Fast Switching | tON = 400ns max, tOFF = 300ns max - supports >1MHz multiplexing in high-speed DAQ systems |
Applications
| Reed Relay Replacement | Data Acquisition Systems |
|---|---|
|
Use Scenario: Replacing electromechanical relays in automated test fixtures where cycle life, speed, and size are critical. IC Role / Device Role / Timing Role: Dual NC analog switch providing solid-state, bounce-free signal path selection with sub-µs switching. Use Value: Eliminates relay wear-out (10M+ cycles vs. 100k mechanical cycles), reduces PCB area by >70%, and cuts power consumption by >95%. |
Use Scenario: Multiplexing multiple sensor outputs into a single ADC channel in industrial monitoring systems. IC Role / Device Role / Timing Role: Precision analog switch routing thermocouple, RTD, or strain gauge signals with minimal gain error. Use Value: 1.25Ω RON and 0.3Ω match ensure ≤0.01% channel-to-channel gain mismatch at 10mA, preserving measurement integrity. |
| Test Equipment Signal Routing | Communication System Channel Switching |
|
Use Scenario: Configuring signal paths in benchtop DMMs or ATE systems requiring low-leakage, high-isolation switching. IC Role / Device Role / Timing Role: Dual NC switch isolating unused test nodes while maintaining low off-capacitance (<175pF) and high off-isolation (−53dB). Use Value: 5nA max off-leakage at +85°C prevents drift in high-impedance measurement paths, improving long-term stability. |
Use Scenario: Selecting between transmit/receive paths or antenna diversity branches in PBX/PABX infrastructure. IC Role / Device Role / Timing Role: Low-distortion analog switch handling voice-band (300Hz–3.4kHz) and broadband signaling up to 1MHz. Use Value: −65dB crosstalk and flat RON minimize inter-channel interference and amplitude ripple across frequency band. |
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 |
|---|---|---|---|
| ADG1419BRUZ | Single-supply only (+5V to +36V); 1.3Ω RON; no dual-supply support; 16-TSSOP package | Lacks ±V operation - unsuitable for bipolar signal conditioning but offers lower charge injection (±20pC) | Select ADG1419BRUZ only if system uses single-ended analog rails and prioritizes ultra-low glitch performance. |
| TS5A23157DGSR | Lower voltage range (2.3V to 5.5V); 0.9Ω RON; no V− pin; 10-pin VSSOP; no dual-supply capability | Targeted for portable, low-voltage systems - incompatible with industrial ±15V or +24V rails | Choose TS5A23157DGSR for battery-powered instrumentation where supply headroom is constrained to 5V. |
Compared with MAX4680CWE+T, ADG1419BRUZ trades dual-supply flexibility for lower charge injection, while TS5A23157DGSR sacrifices voltage range and isolation for compact size and lower RON at 5V - neither matches MAX4680CWE+T's rail-to-rail bipolar operation and guaranteed RON match.
Availability
MAX4680CWE+T is available at Aetrix Electronics and suitable for reed relay replacement, data acquisition systems, and test equipment requiring stable component supply, long-lifecycle assurance, and traceable sourcing.
Supply support for MAX4680CWE+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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.
The MAX4680CWE+T belongs to Maxim's precision analog switch product line, engineered for low-distortion, high-reliability signal routing in environments demanding rail-to-rail operation, tight channel matching, and robust ESD tolerance.
FAQ
What is the operating temperature range for MAX4680CWE+T?
The MAX4680CWE+T is specified for commercial-grade operation from 0°C to +70°C. Its electrical characteristics-including 1.25Ω max on-resistance and 5nA max off-leakage-are guaranteed across this full range. For extended temperature applications (−40°C to +85°C), the MAX4680EWE+T variant is available, sharing identical pinout and functionality.
Does MAX4680CWE+T support break-before-make switching?
No, MAX4680CWE+T does not feature guaranteed break-before-make switching. That function is exclusive to the MAX4700 family member. MAX4680CWE+T implements dual normally closed (NC) SPST switches with standard make-before-break behavior. If break-before-make timing is required, MAX4700CWE+T must be selected instead.
Can MAX4680CWE+T operate from a single +12V supply?
Yes, MAX4680CWE+T supports single-supply operation from +4.5V to +36V. When using +12V, connect V− to GND, set VL to +5V (or +3.3V), and apply logic inputs within the VL-referenced thresholds (0.8V low, 2.4V high). All key specs-including 1.25Ω RON and rail-to-rail signal handling-remain valid under this configuration.
What is the purpose of the VL pin on MAX4680CWE+T?
The VL pin on MAX4680CWE+T provides an independent logic supply reference, decoupling input threshold levels (0.8V/2.4V) from the analog supply rails. This allows direct interface with 3.3V or 5V microcontrollers even when V+ is at +24V or ±15V, preventing logic misstates and ensuring reliable switching across wide analog voltage ranges.
How does MAX4680CWE+T differ from MAX4690CWE+T?
MAX4680CWE+T contains two normally closed (NC) switches, while MAX4690CWE+T contains two normally open (NO) switches. Their pinouts, supply ranges, RON, leakage, and timing specs are identical. The functional difference lies solely in default state: MAX4680CWE+T conducts when IN = low; MAX4690CWE+T conducts when IN = high - a critical distinction for fail-safe signal path design.
MAX4680CWE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 1.25Ohm
- Channel-to-Channel Matching (ΔRon):
- 90mOhm
- Voltage - Supply, Single (V+):
- 4.5V ~ 36V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 275ns, 175ns
- -3db Bandwidth:
- -
- Charge Injection:
- 55pC
- Channel Capacitance (CS(off), CD(off)):
- 115pF, 115pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -65dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX4680CWE+T FAQ
1.How can I place an order for MAX4680CWE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4680CWE+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 MAX4680CWE+T reliable?
The price and inventory of MAX4680CWE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4680CWE+T is usually 5 days.
3.What payment methods are accepted for MAX4680CWE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4680CWE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4680CWE+T?
MAX4680CWE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4680CWE+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 MAX4680CWE+T?
For technical support, including MAX4680CWE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4680CWE+T requirements.
6.How does Aetrix verify that MAX4680CWE+T is sourced from the original manufacturer or authorized distributors?
All MAX4680CWE+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 MAX4680CWE+T meets industry standards.
7.What is the process for return or replacement of MAX4680CWE+T?
All MAX4680CWE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4680CWE+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 MAX4680CWE+T part is unused and in its original packaging.
Return procedure for MAX4680CWE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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