MAX4685

19-1977; Rev 3; 2/03 0.5Ω/0.8Ω Low-Voltage, Dual SPDT Analog Switches in UCSP MAX4684/MAX4685 General Description The MAX4684/MAX4685 low on-resistance (RON), lowvoltage, 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 onresistance 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 ✕ 1.50mm area. The 4 ✕ 3 array of solder bumps are spaced with a 0.5mm bump pitch. 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 ________________________Applications Speaker Headset Switching MP3 Players Power Routing Battery-Operated...