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Analog Devices Inc./Maxim Integrated MAX4678EUE+
- Part No.:
- MAX4678EUE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4678EUE+.pdf
- Description:
- IC SW SPST-NOX4 1.6OHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,437
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Product details
Overview
MAX4678EUE+ from Analog Devices is a quad SPST normally open (NO) CMOS analog switch IC designed for precision signal routing in low-distortion, rail-to-rail applications. It delivers 1.6Ω max on-resistance (RON), 0.3Ω max RON matching between channels, and −65dB off-isolation at 1MHz - enabling high-fidelity audio and data-acquisition signal paths in automated test equipment and communications systems.
For engineers reviewing the MAX4678EUE+ datasheet, MAX4678EUE+ pinout, MAX4678EUE+ application, or MAX4678EUE+ equivalent, key selection criteria include dual ±2.7V to ±5.5V / single +2.7V to +11V supply flexibility, independent logic supply (VL), 66MHz −3dB bandwidth, and guaranteed NO configuration across all four switches - critical for reed relay replacement and break-before-make–free switching topologies.
Technical Context
The MAX4678EUE+ implements four independent CMOS transmission gates with TTL/CMOS-compatible control inputs and separate VL pin supporting logic levels from +2.7V to V+. Its architecture ensures rail-to-rail analog signal handling (V− to V+) and maintains flat on-resistance (0.4Ω max variation) over the full signal range.
It operates with dual ±2.7V to ±5.5V supplies or single +2.7V to +11V, enabling use in both bipolar and unipolar systems. Dynamic performance includes 350ns max turn-on time (tON) and 150ns max turn-off time (tOFF) under dual-supply conditions, with −84dB crosstalk at 1MHz ensuring channel isolation in multi-path routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-resistance (RON) | 1.6Ω max at +25°C, ±5V supplies - enables <10mV voltage drop at 10mA signal current, preserving accuracy in precision instrumentation. |
| RON matching | 0.3Ω max between channels - ensures consistent gain/attenuation across parallel signal paths in ADC multiplexing or audio channel switching. |
| Off-isolation | −65dB at 1MHz - suppresses leakage from active to inactive channels, critical for high-dynamic-range data acquisition. |
| −3dB bandwidth | 66MHz - supports video, broadband communications, and fast-sampling analog front-ends without signal roll-off. |
| Supply range | Dual ±2.7V to ±5.5V or single +2.7V to +11V - allows interoperability with legacy ±5V systems and modern 3.3V/5V digital controllers. |
| Logic supply (VL) | +2.7V to V+ - decouples logic interface from analog rails, enabling mixed-voltage system integration without level shifters. |
| Charge injection | 85pC - limits voltage glitch on sampled-hold nodes, reducing error in switched-capacitor circuits and sample-and-hold amplifiers. |
Pinout & Package
MAX4678EUE+ is housed in a 16-pin TSSOP package (3.0mm × 4.4mm, 0.65mm pitch), optimized for space-constrained PCB layouts in test and measurement equipment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN4 (Pins 1, 8, 9, 16) | Logic control inputs | Active-high TTL/CMOS-compatible signals; drive internal gate drivers to enable/disable respective NO switches. |
| COM1–COM4 (Pins 2, 7, 10, 15) | Analog common terminals | Signal input/output nodes shared between switch path and external circuitry; support rail-to-rail voltage swing (V− to V+). |
| NO1–NO4 (Pins 3, 6, 11, 14) | Normally open analog outputs | Open-circuit when INx = LOW; connect to COMx only when INx = HIGH - defines strict NO behavior per channel. |
| V+ (Pin 13) | Positive analog supply | Bias for analog switch core; must be ≥2.7V and ≤11V (single) or ≤+5.5V (dual); sets upper rail for signal range. |
| V− (Pin 4) | Negative analog supply | Required for dual-supply operation (−2.7V to −5.5V); tied to GND for single-supply use - defines lower rail. |
| GND (Pin 5) | Ground reference | Common return for V− (when used), logic ground, and substrate bias; requires low-impedance connection to minimize noise coupling. |
| VL (Pin 12) | Independent logic supply | Decouples logic threshold from analog rails; accepts +2.7V to V+, enabling direct interfacing with 1.8V/2.5V/3.3V microcontrollers. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Supports analog signals from V− to V+ - eliminates clipping in ±5V op-amp stages and wide-dynamic-range sensor interfaces. |
| Low on-resistance flatness (0.4Ω max) | Minimizes THD variation across signal amplitude - essential for high-fidelity audio routing and distortion-sensitive instrumentation. |
| −84dB crosstalk at 1MHz | Prevents interference between adjacent switched channels - critical in multi-channel ADC/DAC systems and telecom line cards. |
| Guaranteed NO configuration | Ensures open-circuit default state across all four switches - simplifies fail-safe design in safety-critical signal gating applications. |
| Low off-leakage (0.1nA at +25°C) | Reduces DC error in high-impedance sensor multiplexing and precision voltmeter front-ends. |
Applications
| Automated Test Equipment (ATE) | Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing DUT signals to precision measurement instruments in semiconductor wafer probers. IC Role / Device Role / Timing Role: Quad SPST NO switch routing analog stimulus/response paths with minimal added distortion or offset. Use Value: 1.6Ω RON and 0.3Ω matching ensure measurement repeatability; −65dB off-isolation prevents cross-talk between DUT channels. |
Use Scenario: Channel-selectable routing of line-level audio between DAC outputs, headphone amps, and analog inputs. IC Role / Device Role / Timing Role: Low-THD analog switch enabling silent, glitch-free source selection in studio mixers and audio interfaces. Use Value: Rail-to-rail operation preserves full dynamic range; 85pC charge injection minimizes pop/click artifacts during switching. |
| Data-Acquisition Systems | Communications Infrastructure |
Use Scenario: Multiplexing multiple sensor outputs (thermocouples, strain gauges) into a single high-resolution ADC. IC Role / Device Role / Timing Role: Precision analog switch providing low-offset, low-leakage signal path selection before digitization. Use Value: 0.1nA off-leakage avoids gain/offset errors in >16-bit systems; 66MHz bandwidth accommodates anti-alias filter settling. |
Use Scenario: Signal path switching in 75Ω video distribution amplifiers and RF front-end test fixtures. IC Role / Device Role / Timing Role: High-bandwidth analog switch enabling flexible signal injection, monitoring, and loopback in baseband test setups. Use Value: −84dB crosstalk and 66MHz bandwidth maintain signal integrity in SDI/HDMI and broadband comms validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG1414BRUZ | Quad SPST NO, 1.3Ω RON, ±15V/12V supply, no independent VL pin | Higher supply voltage tolerance but lacks VL flexibility; requires external level translation for 1.8V logic | Preferred when operating beyond ±5.5V or requiring lower RON; less suitable for mixed-voltage digital control. |
| TS5A3159DBVR | Single-pole single-throw, 0.75Ω RON, +1.65V to +5.5V supply, no dual-supply capability | Lower RON and smaller footprint but only single-channel; requires four devices for quad function | Cost-effective for low-voltage, space-constrained designs where quad integration is not mandatory. |
Compared with MAX4678EUE+, ADG1414BRUZ offers higher voltage robustness but sacrifices logic supply independence, while TS5A3159DBVR provides lower on-resistance in a tiny SOT-23 package but increases board area and BOM count due to discrete channel implementation.
Availability
MAX4678EUE+ is available at Aetrix Electronics and suitable for automated test equipment, audio signal routing, and data-acquisition systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MAX4678EUE+ 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX4677/MAX4678/MAX4679 family was engineered for low-distortion, high-precision analog signal routing - specifically targeting reed relay replacement and demanding test/measurement applications where reliability, flat RON, and rail-to-rail operation are non-negotiable.
FAQ
What is the maximum supply voltage rating for MAX4678EUE+?
The MAX4678EUE+ supports dual supplies up to ±5.5V (V+ ≤ +5.5V, V− ≥ −5.5V) or single supply up to +11V (V− = GND). Absolute maximum ratings specify V+ to GND ≤ +12V and V− to GND ≥ −12V, but sustained operation above ±5.5V or +11V violates datasheet specifications and risks permanent damage. Always observe the recommended operating ranges in the Electrical Characteristics tables.
Does MAX4678EUE+ support rail-to-rail analog signal switching?
Yes, MAX4678EUE+ supports true rail-to-rail analog signal switching: its analog terminals (COM_, NO_) operate from V− to V+ across the full specified temperature range. This is confirmed in the "Input Voltage Range" parameter (VCOM_, VNO_, VNC_ = V− to V+) and explicitly stated in the General Description. The device maintains low distortion and flat RON across this entire range.
How does the independent VL pin on MAX4678EUE+ improve system design?
The VL pin on MAX4678EUE+ allows the logic interface to operate independently from the analog supply rails - accepting +2.7V to V+ - enabling direct connection to 1.8V, 2.5V, or 3.3V microcontrollers without level-shifting circuitry. This reduces component count, PCB area, and signal integrity risk while maintaining full analog performance, unlike fixed-threshold switches that require external translators.
Is MAX4678EUE+ pin-compatible with MAX4677EUE+ or MAX4679EUE+?
Yes, MAX4678EUE+, MAX4677EUE+, and MAX4679EUE+ share identical 16-pin TSSOP footprints and pinouts - differing only in internal switch configuration (NO vs NC vs mixed). This allows hardware reuse across designs requiring different default states, provided firmware logic accounts for the functional difference. Pin compatibility is verified in the Pin Configurations section and Ordering Information table.
What is the typical charge injection value for MAX4678EUE+ and why does it matter?
MAX4678EUE+ exhibits 85pC typical charge injection (Q), measured with RGEN = 0Ω and CL = 1nF. This parameter directly impacts voltage glitches on capacitive nodes - such as sample-and-hold circuits or switched-capacitor filters - where injected charge causes step errors. Low Q minimizes settling time and improves accuracy in precision sampling applications.
MAX4678EUE+ 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:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
MAX4678EUE+ FAQ
1.How can I place an order for MAX4678EUE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4678EUE+ 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 MAX4678EUE+ reliable?
The price and inventory of MAX4678EUE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4678EUE+ is usually 5 days.
3.What payment methods are accepted for MAX4678EUE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4678EUE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4678EUE+?
MAX4678EUE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4678EUE+ 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 MAX4678EUE+?
For technical support, including MAX4678EUE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4678EUE+ requirements.
6.How does Aetrix verify that MAX4678EUE+ is sourced from the original manufacturer or authorized distributors?
All MAX4678EUE+ 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 MAX4678EUE+ meets industry standards.
7.What is the process for return or replacement of MAX4678EUE+?
All MAX4678EUE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX4678EUE+, 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 MAX4678EUE+ part is unused and in its original packaging.
Return procedure for MAX4678EUE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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