MAX4678
PRODUCTION2Ω, Quad, SPST, CMOS Analog Switches
- Part Models
- 3
- 1ku List Price
- Starting From $4.59
Overview
- On-Resistance 1.6Ω max
- On-Resistance Flatness 0.4Ω max
- On-Resistance Matching 0.3Ω max
- Dual ±2.7V to ±5.5V or Single +2.7V to +11V Supply Range
- TTL/CMOS-Logic Compatible
- Crosstalk -84dB at 1MHz
- Off-Isolation -65dB at 1MHz
- -3dB Bandwidth: 66MHz
- Rail-to-Rail Signal Range
The MAX4677/MAX4678/MAX4679 quad analog switches feature 1.6Ω max on-resistance (RON) when operating from a dual ±5V supply. RON is matched between channels to 0.3Ω max and is flat (0.4Ω max) over the specified signal range. Each switch can handle Rail-to-Rail analog signals. Off-leakage current is 0.1nA at +25°C. These switches are ideal in low-distortion applications and are the preferred solution over mechanical relays in automated test equipment. They have low power requirements, require less board space, and are more reliable than mechanical relays.
The MAX4677 has four normally closed (NC) switches, and the MAX4678 has four normally open (NO) switches. The MAX4679 has two NC and two NO switches and features guaranteed break-before-make switching.
The MAX4677/MAX4678/MAX4679 operate from either a single +2.7V to +11V or dual ±2.7V to ±5.5V supplies, making them ideal for use in digital card applications and single-ended 75Ω systems.
These devices feature a separate logic supply input that operates from +2.7V to V+, allowing independent logic and analog supplies.
Applications
- ADC Systems
- Audio-Signal Routing
- Avionics
- Communication Systems
- Data Acquisition
- PBX/PABX Systems
- Reed Relay Replacement
- Test Equipment
Documentation
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX4678EPE+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX4678EUE+ | Thin Shrink Small-Outline Package | ||
| MAX4678EUE+T | Thin Shrink Small-Outline Package |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 20, 2026 - 2571B PIN/ERRATA |
||
| MAX4678EUE+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Analog Switches & Multiplexers 1 | ||
| MAX391 | PRODUCTION | Precision, Quad, SPST Analog Switches |
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- MAX4678
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
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