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MAX4684：0.5Ω/0.8Ω Low-Voltage, Dual SPDT Analog Switches in UCSP

The MAX4684/MAX4685 low on-resistance (RON), low-voltage, dual single-pole/double-throw (SPDT) analog switches operate from a single +1.8V to +5.5V supply. The MAX4684 features a 0.5Ω (max) RON for its NC switch and a 0.8Ω (max) RON for its NO switch at a +2.7V supply. The MAX4685 features a 0.8Ω max on-resistance for both NO and NC switches at a +2.7V supply. Both parts feature break-before-make switching action (2ns) with tON = 50ns and tOFF = 40ns at +3V. The digital logic inputs are 1.8V logic-compatible with a +2.7V to +3.3V supply. The MAX4684/MAX4685 are packaged in the chipscale package (UCSP™), significantly reducing the required PC board area. The chip occupies only a 2.0mm x 1.50mm area. The 4 x 3 array of solder bumps are spaced with a 0.5mm bump pitch.

Key Features 12-Bump, 0.5mm-Pitch UCSP NC Switch RON 0.5Ω max (+2.7V Supply) (MAX4684) 0.8Ω max (+2.7V Supply) (MAX4685) NO Switch RON 0.8Ω max (+2.7V Supply) RON Match Between Channels 0.06Ω (max) RON Flatness Over Signal Range 0.15Ω (max) +1.8V to +5.5V Single-Supply Operation Rail-to-Rail Signal Handling 1.8V Logic Compatibility Low Crosstalk: -68dB (100kHz) High Off-Isolation: -64dB (100kHz) THD: 0.03% 50nA (max) Supply Current Low Leakage Currents 1nA (max) at TA = +25°C

MAX4684, MAX4685: Pin Configuration Applications/Uses Audio/Video Signal Routing Battery-Operated Equipment Cell Phones Communications Circuits Modems MP3 Players PCMCIA Cards Power Routing Relay Replacement Speaker-Headset Switching

DataSheet

Parametrics

Quality and Environmental Data

• MAX4684.pdf

Ordering Information