The MAX4721/MAX4722/MAX4723 low-voltage, low on-resistance (RON), dual single-pole/single throw (SPST) analog switches operate from a single +1.8V to +5.5V supply. These devices are designed for USB 1.1 and audio switching applications.
The MAX4721/MAX4722/MAX4723 feature 4.5Ω RON (max) with 1.2Ω flatness and 0.3Ω matching between channels. These new switches feature guaranteed operation from +1.8V to +5.5V and are fully specified at 3V and 5V. These switches offer break-before-make switching (1ns) with tON <80ns and tOFF <40ns at +2.7V. The digital logic inputs are +1.8V logic compatible with a +2.7V to +3.6V supply.
These switches are packaged in a chip-scale package (UCSP™), significantly reducing the required PC board area. The chip occupies only a 1.52mm x 1.52mm area and has a 3 x 3 bump array with a bump pitch of 0.5mm. These switches are also available in an 8-pin µMAX® package.
Key Features
Applications/Uses
USB 1.1 Signal Switching
<2ns Differential Skew
-3dB Bandwidth: >300MHz
Low 15pF On-Channel Capacitance
Low RON (max) Switches
4.5Ω (max) (+3V Supply)
3Ω (max) (+5V Supply)
0.3Ω (max) RON Match (+3V Supply)
1.2Ω (max) RON Flatness (+3V Supply)
<0.5nA Leakage Current at TA = +25°C
High Off-Isolation: -55dB (10MHz)
Low Crosstalk: -80dB (10MHz)
Low Distortion: 0.03%
+1.8V CMOS-Logic Compatible
Single-Supply Operation from +1.8V to +5.5V
Rail-to-Rail Signal Handling
Audio/Video Signal Routing
Battery-Operated Equipment
Communications Circuits
Low-Voltage Data-Acquisition Systems
Sample-and-Hold Circuits
Key Specifications: Switches and Multiplexers (Low Voltage)
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