Analog Devices MAX4655 Product Info

• High Continuous Current Handling
  • 300mA (MAX4655/MAX4656)
  • 150mA (MAX4657/MAX4658)
• High Peak Current Handling
  • 400mA (MAX4655/MAX4656)
  • 300mA (MAX4657/MAX4658)
• 10Ω (max) On-Resistance (±15V supplies)
• V_L Not Required
• 1Ω (max) R_ON Flatness over Specified Signal Range
• Rail-to-Rail Signal Handling
• +12V Single Supply or ±15V Dual Supply Operation
• Pin Compatible with DG417, DG418

Maxim's MAX4655–MAX4658 are medium-voltage CMOS analog switches with low on-resistance of 10Ω max, specifically designed to handle large switch currents. With a switch capability of up to 400mA peak current and 300mA continuous current (MAX4655/MAX4656), and up to 300mA peak current and 150mA continuous current (MAX4657/MAX4658), these parts can switch loads as low as 25Ω. They can replace reed relays with a million times the speed and virtually unlimited number of lifetime cycles. Normal power consumption is only 3mW, whether the switch is on or off. These parts are TTL/CMOS compatible and will switch any voltage within its power-supply range.

These are SPST (single-pole/single-throw) switches. The MAX4655/MAX4657 are normally closed (NC), while the MAX4656/MAX4658 are normally open (NO). The difference between the MAX4655/MAX4656 and the MAX4657/MAX4658 is in the power dissipation of their packages. Refer to the Absolute Maximum Ratings and the Electrical Characteristics in the full data sheet.

The MAX4655–MAX4658 power-supply range is from ±4.5V to ±20V for dual-supply operation and +9V to +40V for single-supply operation. These switches can operate from any combination of supplies, within a 40V V+ to V- range. They conduct equally well in either direction and can handle rail-to-rail analog signals. The offleakage current is only 1nA max at T_A = +25°C. They are available in 8-pin µMAX®, TDFN, and SO packages, with exposed paddle options for high-power applications.

Applications

• Audio Signal Routing
• Audio Systems
• Communication Systems
• PBX/PABX Systems
• PC Multimedia Boards
• Redundant/Backup Systems
• Relay Replacement
• Test Equipment
• XDSL Modems
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