The MAX4644 is a single-pole/double-throw (SPDT) switch that operates from a single supply ranging from +1.8V to +5.5V. It provides low 4Ω on-resistance (RON) as well as 1Ω RON flatness over the entire analog signal range. The MAX4644 offers fast switching times of less than 20ns while ensuring break-before-make operation. It typically consumes only 0.01µW of quiescent power, making it suitable for use in low-power, portable applications.
The MAX4644's features include low leakage currents over the entire temperature range, TTL/CMOS-compatible digital logic, and excellent AC characteristics. It is packaged in either a small 8-pin µMAX® or a tiny 6-pin SOT23.
Key Features
Applications/Uses
+1.8V to +5.5V Single-Supply Operation
Rail-to-Rail Analog Signal Range
Guaranteed RON
4Ωs max (+5V supply)
8Ωs max (+3V supply)
+1.8V Operation
RON 30Ωs typ Over Temperature
tON 18ns typ, tOFF 12ns typ
Guaranteed RON Flatness: 0.75Ωs typ (+5V supply)
Guaranteed RON Match Between Channels:
0.1 ohm typ (+5V supply)
Low Leakage (<0.35nA) Over Entire Temperature Range
Excellent AC Characteristics
Low Crosstalk: -82dB at 1MHz
High Off-Isolation: -80dB at 1MHz
0.018% Total Harmonic Distortion
Low Power Consumption: < 0.01µW
Audio/Video Signal Routing
Battery-Powered Applications
Communication Systems
Low-Voltage Data Acquisition
Sample-and-Hold Circuits
Key Specifications:
Switches and Multiplexers (Low Voltage)
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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