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Analog Devices Inc./Maxim Integrated MAX4678EPE+
- Part No.:
- MAX4678EPE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX4678EPE+.pdf
- Description:
- IC SWITCH SPST-NOX4 1.6OHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,739
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Product details
Overview
MAX4678EPE+ from Analog Devices is a quad, normally open (NO), single-pole single-throw (SPST) CMOS analog switch IC designed for precision signal routing in low-distortion systems. It delivers 1.6Ω max on-resistance (RON), 0.4Ω max RON flatness, and ±5V dual-supply operation, enabling rail-to-rail analog signal handling in automated test equipment and audio signal paths.
For engineers reviewing the MAX4678EPE+ datasheet, MAX4678EPE+ pinout, MAX4678EPE+ application, or MAX4678EPE+ equivalent, key selection criteria include guaranteed NO configuration, 66MHz -3dB bandwidth, -84dB crosstalk at 1MHz, and independent logic supply (VL) support from +2.7V to V+ - critical for mixed-voltage system integration.
Technical Context
The MAX4678EPE+ implements four independent SPST switches with CMOS transmission-gate architecture, each controlled by a dedicated TTL/CMOS-compatible logic input (IN1–IN4). Its dual ±2.7V to ±5.5V or single +2.7V to +11V supply flexibility supports both bipolar and unipolar signal conditioning without level-shifting circuitry.
Switching performance is defined by 350ns max turn-on time (tON), 150ns max turn-off time (tOFF), and 85pC typical charge injection - enabling high-fidelity sampling in data-acquisition systems and low-glitch switching in communications infrastructure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 1.6Ω max at ±5V supplies - ensures minimal signal attenuation and voltage drop in precision analog paths. |
| RON Flatness | 0.4Ω max over full signal range - maintains consistent gain and linearity across rail-to-rail input voltages. |
| -3dB Bandwidth | 66MHz - supports high-speed video, RF IF routing, and fast ADC/DAC interface applications. |
| Crosstalk | -84dB at 1MHz - prevents coupling between adjacent switched channels in multi-signal systems. |
| Off-Isolation | -65dB at 1MHz - blocks unwanted signal leakage when switches are open, critical for sensitive measurement front-ends. |
| Logic Supply Range (VL) | +2.7V to V+ - allows independent control voltage scaling, enabling direct interfacing with 1.8V/3.3V microcontrollers while analog rails operate at ±5V. |
| Off-Leakage Current | 0.1nA at +25°C - preserves signal integrity in high-impedance sensor interfaces and battery-powered instrumentation. |
Pinout & Package
MAX4678EPE+ is housed in a 16-pin plastic DIP (dual in-line package) with 0.3-inch body width and through-hole mounting. Pin pitch is 0.1 inch (2.54 mm), compatible with standard PCB prototyping and industrial through-hole assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1, IN2, IN3, IN4 | Independent TTL/CMOS logic inputs controlling each NO switch; low = OFF, high = ON. |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals - connect to signal source or load; bidirectional current path when switch closed. |
| 3, 6, 11, 14 | NO1–NO4 | Normally open analog terminals - only conduct when corresponding INx is high; no internal connection when inactive. |
| 4 | V− | Negative supply rail - must be connected to −5V (dual) or GND (single); absolute max −12V. |
| 5 | GND | Digital/analog reference ground - separate from power return but tied internally; requires low-impedance layout. |
| 12 | VL | Independent logic supply input - decouples control logic voltage from analog rails, enabling mixed-voltage system design. |
| 13 | V+ | Positive supply rail - operates from +2.7V to +11V (single) or +5.5V max (dual); absolute max +12V. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports input signals from V− to V+, eliminating clipping in ±5V or 0–5V systems without external biasing. |
| Guaranteed NO configuration | All four switches default open - ensures safe signal isolation during power-up or logic reset, preventing unintended signal paths. |
| Low charge injection (85pC) | Minimizes voltage glitches at COM terminals during switching - essential for sample-and-hold and multiplexed ADC front-ends. |
| Matched on-resistance (0.3Ω max) | Ensures consistent channel-to-channel gain and phase response in multi-path signal routing or calibration circuits. |
| Independent VL supply | Allows logic interface at 1.8V/2.5V/3.3V while analog rails run at ±5V - simplifies level translation and reduces BOM count. |
Applications
| Automated Test Equipment (ATE) | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing multiple sensor outputs into a shared high-precision ADC channel in semiconductor wafer probers. IC Role / Device Role / Timing Role: Quad SPST analog switch providing isolated, low-RON signal paths under microcontroller GPIO control. Use Value: 1.6Ω RON and 0.4Ω flatness preserve small-signal accuracy; -84dB crosstalk prevents interference between adjacent test channels. | Use Scenario: Selecting between microphone preamp outputs and line-level inputs in professional audio mixers. IC Role / Device Role / Timing Role: Low-distortion analog switch enabling silent, glitch-free channel switching via digital control. Use Value: 85pC charge injection and rail-to-rail operation prevent audible pops/clicks; 66MHz bandwidth supports full audio spectrum including ultrasonic content. |
| Data-Acquisition Systems | Communications Infrastructure |
Use Scenario: Scanning thermocouple, RTD, and strain gauge inputs into a single sigma-delta ADC in industrial PLC modules. IC Role / Device Role / Timing Role: Precision analog multiplexer with matched RON and ultra-low leakage for high-resolution measurements. Use Value: 0.1nA off-leakage avoids measurement drift in high-Z sensor bridges; 0.3Ω RON matching enables accurate ratiometric calibration. | Use Scenario: Routing IF signals between up/down-conversion stages in cellular base station transceivers. IC Role / Device Role / Timing Role: High-bandwidth analog switch managing signal path selection in RF front-end modules. Use Value: 66MHz -3dB bandwidth supports LTE/WCDMA IF frequencies; -65dB off-isolation prevents LO leakage and spurious emissions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1414BRUZ | 4-channel, NO, 1.3Ω RON, ±5V supply, 16-TSSOP only - no DIP option. | Higher bandwidth (170MHz) but higher charge injection (120pC); lacks VL pin for independent logic supply. | Select when higher speed is required and TSSOP packaging is acceptable; avoid where through-hole mounting or VL decoupling is needed. |
| MAX4678EUE+ | Same electrical specs and NO functionality, but in 16-TSSOP package - smaller footprint, surface-mount only. | Identical performance but incompatible with DIP sockets or wave-solder processes; thermal resistance differs (457mW vs. 842mW). | Choose for space-constrained PCBs with SMT assembly; retain MAX4678EPE+ for legacy through-hole designs or thermal-limited environments. |
Compared with ADG1414BRUZ and MAX4678EUE+, the MAX4678EPE+ uniquely combines through-hole DIP packaging, independent VL logic supply, and guaranteed NO topology - making it optimal for industrial test fixtures, audio hardware requiring mechanical robustness, and mixed-voltage prototyping platforms.
Availability
MAX4678EPE+ is available at Aetrix Electronics and suitable for automated test equipment, audio signal routing, and data-acquisition systems requiring stable component supply, long-term obsolescence management, and RoHS-compliant through-hole analog switches.
Supply support for MAX4678EPE+ 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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The MAX4677/MAX4678/MAX4679 family was engineered specifically for reed relay replacement in precision instrumentation - emphasizing ultra-low on-resistance, rail-to-rail signal handling, and guaranteed fail-safe switching states.
FAQ
What is the maximum supply voltage rating for MAX4678EPE+?
The MAX4678EPE+ has absolute maximum ratings of +12V for V+ and −12V for V−, with a maximum differential voltage of +12V between V+ and V−. For reliable operation, Analog Devices specifies a recommended dual-supply range of ±2.7V to ±5.5V or single-supply range of +2.7V to +11V. Exceeding these ranges risks permanent damage per the Absolute Maximum Ratings table.
Does MAX4678EPE+ support rail-to-rail analog signal switching?
Yes, the MAX4678EPE+ supports true rail-to-rail analog signal switching - its analog terminals (COMx, NOx) operate from V− to V+ across the full specified supply range. This capability is confirmed in the Electrical Characteristics tables and General Description, enabling use with ±5V, ±3V, or 0–5V signals without external biasing or level-shifting circuitry.
What is the function of the VL pin on MAX4678EPE+?
VL is the independent logic supply input for the MAX4678EPE+, operating from +2.7V to V+. It powers the internal logic circuitry and defines VIH/VIL thresholds, allowing the device to accept 1.8V, 2.5V, or 3.3V control signals even when analog rails run at ±5V. This eliminates external level shifters and simplifies interface with modern low-voltage microcontrollers.
How does MAX4678EPE+ differ from MAX4677EPE+ and MAX4679EPE+?
The MAX4678EPE+ features four normally open (NO) switches, whereas MAX4677EPE+ has four normally closed (NC) switches, and MAX4679EPE+ integrates two NC and two NO switches with guaranteed break-before-make timing. All share identical package, pinout, RON, bandwidth, and supply specifications - only the default switch state and truth table differ, making them functionally distinct for fail-safe routing requirements.
Is MAX4678EPE+ pin-compatible with other packages in the same family?
Yes, the MAX4678EPE+ (16-pin DIP) shares identical pin numbering, pin functions, and electrical behavior with the MAX4678EUE+ (16-pin TSSOP) - both follow the same pin configuration diagram shown in the datasheet. However, physical dimensions, thermal characteristics, and mounting method differ; PCB layout and thermal design must be adapted accordingly.
MAX4678EPE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 1.6Ohm
- Channel-to-Channel Matching (ΔRon):
- 200mOhm
- Voltage - Supply, Single (V+):
- 2.7V ~ 11V
- Voltage - Supply, Dual (V±):
- ±2.7V ~ 5.5V
- Switch Time (Ton, Toff) (Max):
- 350ns, 150ns
- -3db Bandwidth:
- 66MHz
- Charge Injection:
- 85pC
- Channel Capacitance (CS(off), CD(off)):
- 85pF, 85pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -84dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
MAX4678EPE+ FAQ
1.How can I place an order for MAX4678EPE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4678EPE+ 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 MAX4678EPE+ reliable?
The price and inventory of MAX4678EPE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4678EPE+ is usually 5 days.
3.What payment methods are accepted for MAX4678EPE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4678EPE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4678EPE+?
MAX4678EPE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4678EPE+ 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 MAX4678EPE+?
For technical support, including MAX4678EPE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4678EPE+ requirements.
6.How does Aetrix verify that MAX4678EPE+ is sourced from the original manufacturer or authorized distributors?
All MAX4678EPE+ 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 MAX4678EPE+ meets industry standards.
7.What is the process for return or replacement of MAX4678EPE+?
All MAX4678EPE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4678EPE+, 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 MAX4678EPE+ part is unused and in its original packaging.
Return procedure for MAX4678EPE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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