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Description

General part information

MAX4656 Series

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 theAbsolute Maximum Ratings and the Electrical Characteristicsin 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 TA= +25°C. They are available in 8-pin µMAX®, TDFN, and SO packages, with exposed paddle options for high-power applications.ApplicationsAudio Signal RoutingAudio SystemsCommunication SystemsPBX/PABX SystemsPC Multimedia BoardsRedundant/Backup SystemsRelay ReplacementTest EquipmentXDSL Modems

Technical Specifications

Parameters and characteristics for this part

SpecificationMAX4656ETA
-3db Bandwidth210 MHz
Channel Capacitance (CD(off))25 pF
Channel Capacitance (CS(off))25 pF
Charge Injection23 pC
Current - Leakage (Max)1 nA
Demultiplexer Outputs1
Mounting TypeSurface Mount
Multiplexer Inputs1
Number of Circuits1
On-State Resistance (Max)10 Ohm
Operating Temperature (Max)85 °C
Operating Temperature (Min)-40 °C
Package / Case8-WDFN Exposed Pad
Package Length3 mm
Package Name8-TDFN-EP
Package Width3 mm
Switch Circuit TypeSPST
Switch ContactNO
Switch Time Toff (Max)100 ns
Switch Time Ton (Max)200 ns
Voltage - Supply, Dual (Maximum)20 V
Voltage - Supply, Dual (Minimum)-4.5 V
Voltage - Supply, Dual (Nominal)4.5 V
Voltage - Supply, Single (V+) (Maximum)40 V
Voltage - Supply, Single (V+) (Minimum)9 V

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