20Ω, 300MHz Bandwidth, Dual SPDT Analog Switch in UCSP

The MAX4719 low-voltage, low on-resistance (RON), dual single-pole/double throw (SPDT) analog switch operates from a single +1.8V to +5.5V supply. The MAX4719 features 20Ω RON (max) with 1.2Ω flatness and 0.4Ω matching between channels. The switch offers 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.

The switch is packaged in a chip-scale package (UCSP™), significantly reducing the required PC board area. The chip occupies only a 2.0mm x 1.50mm area and has a 4 x 3 bump array with a bump pitch of 0.5mm. The MAX4719 is also available in a 10-pin µMAX® package.

Applications

* Audio/Video Signal Routing * Battery-Operated Equipment * Cell Phones * Low-Voltage Data-Acquisition Systems * PDAs * Sample-and-Hold Circuits

* -3dB Bandwidth: >300MHz

* Low 15pF On-Channel Capacitance

* Single-Supply Operation from +1.8V to +5.5V

* 20Ω RON (max) Switch

* 0.4Ω (max) RON Match (+3.0V Supply)

* 1.2Ω (max) RON Flatness (+3.0V Supply)

* Rail-to-Rail Signal Handling

* High Off-Isolation: -55dB (10MHz)

* Low Crosstalk: -80dB (10MHz)

* Low Distortion: 0.03%

* +1.8V CMOS-Logic Compatible

* <0.5nA Leakage Current at +25°C