Analog Devices Inc./Maxim Integrated MAX4678EUE+T
- Part No.:
- MAX4678EUE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX4678EUE+T.pdf
- Description:
- IC SW SPST-NOX4 1.6OHM 16TSSOP
- Quantity:
- Payment:

- Shipping:

Inventory:1,407
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Product details
Overview
MAX4678EUE+T from Analog Devices is a quad, normally open (NO), single-pole single-throw (SPST) CMOS analog switch with 1.6Ω max on-resistance (RON), 0.3Ω max RON matching between channels, and rail-to-rail signal handling capability. It operates from dual ±2.7V to ±5.5V or single +2.7V to +11V supplies, features independent logic supply (VL), and delivers -65dB off-isolation at 1MHz - ideal for precision audio routing and automated test equipment signal paths.
For engineers reviewing the MAX4678EUE+T datasheet, MAX4678EUE+T pinout, MAX4678EUE+T application, or MAX4678EUE+T equivalent, key selection criteria include verified SPST NO configuration, TSSOP-16 package compatibility, guaranteed break-before-make absence (vs. MAX4679), and confirmed 66MHz -3dB bandwidth under dual-supply operation.
Technical Context
The MAX4678EUE+T implements four independent CMOS transmission gates controlled by TTL/CMOS-compatible logic inputs (IN1–IN4), each switching between COMx and NOx terminals. Its architecture ensures matched conduction characteristics across all channels, with flat on-resistance (0.4Ω max variation) over the full ±5V analog signal range.
It supports dual-supply operation (±2.7V to ±5.5V) and single-supply mode (+2.7V to +11V), with separate VL pin enabling logic-level independence from analog rails. No internal break-before-make timing is implemented - unlike the MAX4679 - making it suitable for static signal routing where simultaneous channel control is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | 1.6Ω max at +25°C, dual ±5V supply - enables low insertion loss in precision signal paths. |
| RON Matching | 0.3Ω max between channels - critical for multi-channel instrumentation requiring gain/phase consistency. |
| -3dB Bandwidth | 66MHz under dual-supply conditions - supports high-fidelity audio and fast data-acquisition sampling. |
| Off-Isolation | -65dB at 1MHz - suppresses crosstalk between inactive channels in dense routing applications. |
| Supply Range | Dual ±2.7V to ±5.5V or single +2.7V to +11V - interoperable with legacy ±5V systems and modern 3.3V/5V logic domains. |
| Logic Supply (VL) | +2.7V to V+ - decouples digital interface voltage from analog rail, simplifying mixed-signal board design. |
| Charge Injection | 85pC - limits voltage glitch on sampled-hold nodes in ADC front-ends. |
Pinout & Package
MAX4678EUE+T is housed in a 16-pin TSSOP package (JEDEC MO-153, 5mm × 4.4mm, 0.65mm pitch), rated for -40°C to +85°C operation. Thermal resistance θJA = 175°C/W; derating is 5.7mW/°C above +70°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8, 9, 16 | IN1–IN4 | Independent TTL/CMOS logic inputs controlling respective switches; active-high enables NO path. |
| 2, 7, 10, 15 | COM1–COM4 | Analog common terminals - bidirectional signal ports connected to load or source. |
| 3, 6, 11, 14 | NO1–NO4 | Normally open analog terminals - only conduct when corresponding INx = logic high. |
| 4 | V− | Negative supply input; tie to GND for single-supply operation. |
| 5 | GND | Ground reference for analog and logic sections; must be low-impedance return path. |
| 12 | VL | Separate logic supply input - sets VIH/VIL thresholds independently of V+/V−. |
| 13 | V+ | Positive supply input - defines upper analog rail and powers internal bias circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal handling | Supports signals from V− to V+ without clipping - essential for ±5V op-amp interfaces and unipolar 0–10V sensor conditioning. |
| 0.4Ω max RON flatness | Ensures consistent gain and minimal THD across full input voltage swing - critical for audio line drivers. |
| -84dB crosstalk at 1MHz | Prevents signal bleed between adjacent switched channels in multi-input multiplexers or matrix routers. |
| Low 0.1nA off-leakage at +25°C | Maintains accuracy in high-impedance sensor front-ends and precision integrator circuits. |
| TTL/CMOS logic compatibility | Accepts standard 0.8V/2.4V thresholds with <1µA input leakage - eliminates level-shifter requirements in 3.3V/5V systems. |
Applications
| Automated Test Equipment (ATE) | Professional Audio Signal Routing |
|---|---|
Use Scenario: Multiplexing calibration reference signals to multiple DUT measurement channels in semiconductor ATE racks. IC Role / Device Role / Timing Role: Quad SPST NO switch isolating reference sources from DUT inputs during sequential testing cycles. Use Value: 1.6Ω RON minimizes reference voltage drop; 0.3Ω matching ensures identical path gain across all four test channels. |
Use Scenario: Selecting between microphone preamp outputs and analog-to-digital converter inputs in digital mixing consoles. IC Role / Device Role / Timing Role: Low-distortion analog switch routing balanced line-level audio without introducing switching artifacts. Use Value: Rail-to-rail support preserves full ±2.5V audio swing; -84dB crosstalk prevents channel bleed in multi-track recording. |
| Data-Acquisition Systems | Communications Baseband Switching |
Use Scenario: Channel selection in 16-bit SAR ADC front-end multiplexers for industrial process monitoring. IC Role / Device Role / Timing Role: Precision analog switch preceding programmable gain amplifier and anti-alias filter stages. Use Value: 85pC charge injection limits hold-step error; 0.1nA off-leakage avoids DC offset drift in high-Z sensor bridges. |
Use Scenario: Reconfiguring baseband filter paths in software-defined radio (SDR) transceivers supporting multiple modulation standards. IC Role / Device Role / Timing Role: Signal path selector enabling dynamic RF chain adaptation without mechanical relays. Use Value: 66MHz bandwidth accommodates wideband LTE/5G baseband signals; dual-supply operation matches ±5V DAC/ADC rails. |
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 max supply, no VL pin - requires shared logic/analog supply. | Higher voltage rating suits industrial PLC I/O modules; lacks independent logic supply for mixed-voltage designs. | Select ADG1414BRUZ when operating beyond ±5.5V or when board space allows larger TSSOP-16 footprint with different thermal profile. |
| TS5A23157DCUR | Quad SPST NO, 0.9Ω RON, single 1.65–5.5V supply only, no dual-supply support. | Optimized for portable battery-powered gear; incompatible with ±5V legacy test equipment infrastructure. | Choose TS5A23157DCUR for cost-sensitive, low-voltage consumer audio products where dual-supply capability is unnecessary. |
Compared with ADG1414BRUZ and TS5A23157DCUR, the MAX4678EUE+T uniquely balances ultra-low RON matching (0.3Ω), dual-supply flexibility, and independent VL - making it the preferred choice for re-engineering relay-based ATE fixtures into compact, reliable solid-state signal matrices.
Availability
MAX4678EUE+T is available at Aetrix Electronics and suitable for automated test equipment, professional audio routing, data-acquisition systems, communications baseband switching, and avionics signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX4678EUE+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
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 since 1965.
The MAX4677/MAX4678/MAX4679 family was designed specifically for high-fidelity, low-distortion analog signal routing in automated test and precision instrumentation - emphasizing RON matching, rail-to-rail operation, and supply flexibility.
FAQ
What is the maximum supply voltage rating for MAX4678EUE+T?
The MAX4678EUE+T supports dual supplies up to ±5.5V (V+ ≤ +5.5V, V− ≥ −5.5V) or single supply up to +11V. Absolute maximum ratings specify V+ to GND ≤ +12V and V− to GND ≥ −12V, but functional operation is guaranteed only within the specified ranges. Exceeding ±5.5V or +11V may cause permanent damage or parametric shift in the MAX4678EUE+T.
Does MAX4678EUE+T support break-before-make switching?
No, the MAX4678EUE+T does not implement break-before-make timing. It is a pure normally open (NO) switch - each channel connects COMx to NOx only when its corresponding INx is logic high, with no guaranteed dead-time between disconnect and reconnect. For guaranteed break-before-make behavior, use the MAX4679EUE+T instead.
Can MAX4678EUE+T operate with different voltages on V+ and VL pins?
Yes - the MAX4678EUE+T explicitly supports independent logic and analog supplies: VL may range from +2.7V to V+, while V+ operates from +2.7V to +11V (single supply) or ±2.7V to ±5.5V (dual supply). This allows interfacing 3.3V microcontrollers with ±5V analog signal chains without level shifters in the MAX4678EUE+T design.
What is the typical off-isolation performance of MAX4678EUE+T at 10MHz?
While the MAX4678EUE+T guarantees -65dB off-isolation at 1MHz, measured data shows degradation to approximately -42dB at 10MHz under standard test conditions (RL = 50Ω, CL = 5pF). This frequency-dependent roll-off is inherent to capacitive coupling in CMOS switch structures and must be accounted for in wideband RF or high-speed digital routing applications using the MAX4678EUE+T.
Is MAX4678EUE+T pin-compatible with MAX4677EUE+T or MAX4679EUE+T?
Yes - all three variants (MAX4677EUE+T, MAX4678EUE+T, MAX4679EUE+T) share identical 16-pin TSSOP packaging and pinout. The only functional difference lies in internal switch configuration: MAX4677 is NC, MAX4678 is NO, and MAX4679 combines two NC and two NO with break-before-make. PCB layout can be reused across the family, but firmware logic must match the selected variant's switching behavior in the MAX4678EUE+T implementation.
MAX4678EUE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX4678EUE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4678EUE+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 MAX4678EUE+T reliable?
The price and inventory of MAX4678EUE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4678EUE+T is usually 5 days.
3.What payment methods are accepted for MAX4678EUE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4678EUE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4678EUE+T?
MAX4678EUE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4678EUE+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 MAX4678EUE+T?
For technical support, including MAX4678EUE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4678EUE+T requirements.
6.How does Aetrix verify that MAX4678EUE+T is sourced from the original manufacturer or authorized distributors?
All MAX4678EUE+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 MAX4678EUE+T meets industry standards.
7.What is the process for return or replacement of MAX4678EUE+T?
All MAX4678EUE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4678EUE+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 MAX4678EUE+T part is unused and in its original packaging.
Return procedure for MAX4678EUE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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