MAX4690 General Description
The MAX4680/MAX4690/MAX4700 dual analog switches feature low on-resistance of 1.25Ω max. On-resistance is matched between switches to 0.3Ω max and is flat (0.3Ω max) over the specified signal range. Each switch can handle Rail-to-Rail ® analog signals. Off-leakage current is only 5nA max at +85°C. These analog switches are ideal in low-distortion applications and are the preferred solution over mechanical relays in automatic test equipment or applications where current switching is required. They have low power requirements, require less board space, and are more reliable than mechanical relays.
The MAX4680 has two NC (normally closed) switches, and the MAX4690 has two NO (normally open) switches. The MAX4700 has one NC and one NO switch and features guaranteed break-before-make switching. These devices operate from a +4.5V to +36V single supply or from ±4.5V to ±20V dual supplies. A separate logic supply pin guarantees TTL/CMOS-logic compatibility while operating across the entire supply voltage range.
MAX4690 Maximum Ratings
V+ to GND................................................................-0.3V to +44V
V- to GND.................................................................+0.3V to -44V
V+ to V-...................................................................-0.3V to +44V
VL to GND.......................................................-0.3V to (V+ + 0.3V)
All Other Pins to GND (Note 1) ...............(V- - 0.3V) to (V+ + 0.3V)
Continuous Current (COM_, NO_, NC_) ..........................±200mA
Peak Current (COM_, NO_, NC_)
(pulsed at 1ms, 10% duty cycle) .....................................±300mA
Continuous Power Dissipation (T A = +70°C)
SSOP (derate 7.1mW/°C above +70°C)...........................571mW
Wide SO (derate 9.52mW/°C above +70°C) ...................762mW
Plastic DIP (derate 10.53mW/°C above +70°C)...............842mW
Operating Temperature Ranges
MAX4_ _0C_E ........................................................0°C to +70°C
MAX4_ _0E_E......................................................-40°C to +85°C
Storage Temperature Range ............................-65°C to +150°C
Lead Temperature (soldering, 10sec) ..............................+300°C
MAX4690 Features
Low On-Resistance (1.25Ωmax)
Guaranteed RON Match Between Channels (0.3Ω max)
Guaranteed RON Flatness Over Specified Signal Range (0.3Ω max)
Rail-to-Rail Signal Handling
Guaranteed Break-Before-Make (MAX4700)
+4.5V to +36V Single-Supply Operation ±4.5V to ±20V Dual-Supply Operation
TTL/CMOS-Compatible Control Inputs
>2kV ESD Protection per Method 3015.7
MAX4690 Typical Application
MAX4690 Connection Diagram
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