2.5Ω, Low-Voltage, SPST/SPDT Analog Switches in UCSP Package

The MAX4686/MAX4687/MAX4688 low on-resistance (RON), low-voltage analog switches operate from a single +1.8V to +5.5V supply. The MAX4686/MAX4687 are single-pole/single-throw (SPST) analog switches, and the MAX4688 is a single-pole/double-throw (SPDT) analog switch. The MAX4686 is a normally open (NO) switch, and the MAX4687 is a normally closed (NC) switch. The MAX4688 has one normally open (NO) switch and one normally closed (NC) switch.

When powered from a 3V supply these devices feature 2.5Ω (max) RON, with 0.4Ω (max) RON matching and 1Ω (max) flatness. The MAX4686/MAX4687/MAX4688 offer fast switching speeds (tON = 30ns max, tOFF = 12ns max). The MAX4688 offers break-before-make action.

The digital logic inputs are 1.8V logic compatible from a +2.7V to +3.3V supply. The MAX4686/MAX4687/MAX4688 are available in the chip-scale package (UCSP™), significantly reducing the required PC board area. The chip occupies only a 1.50mm x 1.02mm area. The 3 x 2 array of solder bumps are spaced with a 0.5mm bump pitch.

Applications

* Audio/Video Signal Routing * Battery-Operated Equipment * Cell Phones * Cell Phones * Communications Circuits * Hard Drives * MP3 Players * PCMCIA Cards * Power Routing * Relay Replacement

* 6-Bump, 0.5mm Pitch, UCSP

* RON

* 2.5Ω max (+3V Supply)

* 10Ω max (+1.8V Supply)

* 0.4Ω max RON Match Between Channels

* 1Ω max RON Flatness Over Signal Range

* Low Leakage Currents Over Temperature

* 0.5nA (max) at TA = +25°C

* Fast Switching: tON = 30ns, tOFF = 12ns

* Guaranteed Break-Before-Make (MAX4688)

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

* Rail-to-Rail Signal Handling

* Low Crosstalk: -95dB (100kHz)

* High Off-Isolation: -90dB (100kHz)

* 1.8V Logic Compatible